Wave measurements with the Delft wave buoy a board HNLMS Tydeman during LEWEX

Wave measurements with the Deift

wavebuoy aboard HN1MS Tydéman

during LEWEX, March 1987

J. Oorns

Report no.: 760

September 1987

Deift Universityof-Technology Ship Hydromechanics Laboratory

MekeIweg2

2628 CD Deift The Netherlands PhoneOl5-786882

Table of contents

introduction

The Deift wave buoy

The data processing

The results

Introduction

In March 1987 an experiment was performed at the Labrador

sea off

the coast of Newfoundland. This experiment was staged by the NATO

research groups RSG1 and RS!G:2

and was named LEWEX whic.h stands

for

Labrador

Extreme

Wave

eXperiment.

Participants

fo'r

this

experiment came from Canada,

France,

Germany, Holland,

Norway,

Spain

and

the

USA.,

The

objectives

of

the

experiment

were

threefold,, namely:

to

check

the

outcomes

of

mathematical

wave-prediction

models

by

measuring

t'h.e

actual

conditions on-site

to

compare

the

performance

of

different

wavemeasuring

devlces

and

data-analysi,s

techniques

with

an

emphasis

on

directional

performance

to do full-scale. sh.i.prnot.io.n measurements.

The

experiments

were

performed

from

two

ships,

the

Dutch

hydro.graphi.c

vessel

HN1MS

Tydeman

and

the

Canadian

research

vessel CFAV Quest, and two airplanes,

_{.a Canadian CV-58O and a US}

NASA-plane.

Amongst the participants was

_{the Sh'iphydronautic.s group of the}

Delft University of Technology.

_{Their main interests were the}

full.- scale

shipmotion measurements

and

the

comparison

of

the

Delft wavebuoy with

other

wavemeasuring devices.

These

othe.r

devices were live different types

of wavebuoys,

a

shipmounte.d

infrared waveheigth sensor and a variety of sensors aboard of the

planes

This report is

a co.11ect:ion of the results from the De;lf.t wave

buoy measurements during LEWEX,

and is intended for comparison

purposes

between

different

bu'oy

systems.

The

results

of

the

seakeepin:g tests are reported in a separate report [I].

The De.l.ft wavebuoy

T.he

Delft

wavebuoy

is a

simple

wave.heigth

measuring

device

designed as a rugged, disposible and easy to handle

instrument.

These requirements stemmed from

its

intended use,

namely from

aboard

a

_{sailing ship were}

it

must often be launched from a

relatively large height without elaborate launching equipment.

The buoy transmits a signal to

the. ship which gives information

about the. vertical acceleration, of the. buoy and hence the

waves.

This da.ta is received aboard. of the shl,p

_{arid c.an be recorded for}

processing off-line

or ..rocessed on-line.

The buoy

is

able

to

measure wave.s with periods between approximately 2s and 20s.

A

more extensive description of the buo.y is given in ref.e.r.ence

[.2].

The data processing

The acceleration data of

_{the buoy is processed with a desktop}

computer using a programme named HPSPEC. This

_{program filters the}

raw data digitally,

pe.rforms

the

required double integration,

calculates

the

_{autocorrelation function and finally}

_{the power}

spectrum and

so.me

_{stati.sticalmo'men-ts. The program do:esnt use}

1

the popular FFT method for the calculation of the spectra but the

older BlackmanTukey method.

This, is due to the history of the

program

in the laboratory and. not for some explici.t reason. In

the .near future the FFT will replace the BT metho.d as the program

is

being

readied

for

the

new

computers

which. are

now being

introduced at the Shiphydromechanics Laboratory; More information

about the program can be found in reference [3]

The results

The spectra of all wave measurements are given in the following

pages. Alongside the spectra additional information is printed.

The runnumbers cons ist of the day of March (first two digits) at

which

the

mesurement

was

performed,

the

start

time

of

the

measurement

(third

through

sixth

digit.)

and

the

stop

time

(digits: seven through ten).

All times are Greenwich Mean Time

(GMT).

The

average period

is

calculated using the

MO

and Ml

statistical moments.

_{If required one can calculate from M2 the}

significant vertical wave velocity and from M4 the significant

vertical, wave acceleration. The average vertical wave velocity

period and vertical wave acceleration period can be calculated

from M2 and M3 or M4 and M5 respectively.

Further information consists of

the length of the measurement,

the sample interval, the cut-off frequencies of the digital

band-pass filter through which the raw data was fed,

the number of

filterweights of the digital

IR filter and a calibration factor

which depends on the demodulator used.

As

the

program

is

used for

the

analysis of other shipmotion

signals as well the significant value printed is given

as two

times the SQRT(MO) value of the wave spectrum.

So It has to be

multiplied by two to obtain the significant waveheigth which is

defined as four times the SQRT(MO) value of the

wave spectrum.

This fact is mentioned in the output by a footnote..

Fin:ally a list is included were all runs are given together with

the significant waveheigths, peak period of the spectrum and the

average period. Here the significant waveheigths are the correct

ones, h:ence four times SQRT(MO).

References

Ooms J.

Wave and ship motion measurements a.b.

_{HNMS Tydeman during}

LEWEX, March 1987.

Report no. 761, September 1987.

Buitenhek M. and J. Ooms,

An updated design of a disposable

wave buoy.

Report no. 463,

May 178

Ooms J.

HPSPEC,

a

_{program to calculate the estimated power density}

spectrum (EPDS) of a signal

part 1: theory

Table 1

Results: of D:elft buoy during LEWEX

run 'number

H1/'3 (rn.) .

Ti (s)

Tp(s)

.march 14th .1987

1411431.212

4.12

'8.4

11.4

1412 39 1308 .

4.

1,2

8.16

10.5

1413451415

. 3.7'3 8. 69

11.4

14.i4301.5:0O . 4.2.8 '8.38. '

11.4

1416451715

4.54

7.89

10.5

1417251755

4.06

7.8

10.5

1.418301.8.50 4.0:6

8.3

10.5

1419051934

'

3.86

'8.0 '

11.4

. .

march 1.5th 1987

1511341204

3.93

7.92

10.5

1512021231

3.65

7.67

10.5

1512301259

.

4.09

79:4

10.5

15123313.0:3

4.04

7.88

10.5

1513001.329

' 3.6:5

7.44

9.,0 131330:1,359

3.89

7.8:3

10.5

1.5140.01430

3.71

'7.45

10.5

151745181.5

4.O9

7.91

'

10.5

1s1a2o:1.85'o 3.. 76

7.59

_9.7

1518301900

3.. 58

7.26

9.7

1518551925

3.55

7.20

9.7

15,19310:2:0:00

3.68

_7.35

_'9.7

march 1,6th 1987'

1609371007

2'. 5,1

8.01

_9.0

160948.1018

2.56

7.88

'

9.0

1610151045

.

2.38

7.69

9.0'

1610:301100

.

2.25

7.52

9.0

1610551125

2'. 51

7.81

1.0.5

1611301200

.

2.45

7.59

.

9.7

.161135.1205

2.43'

7.62

9.7

1612251255

2.68

7.70

9.7

1612451315

2.79

7.71

9.7.

1613051335

2.71

7.64

'9.1

1613451415

2.46

7.. 15 9.0.

161402143.2

.

2.79

7.70

9.7

161.530160.0 '

2.75

7.19

9.0

1616271657

2.68

_7.21

_9.0

1617.251755

.

2.65

:6.8:2

9.7

161:830190:0

'2.85

7.04

'

97

1619462:0116

2.91

7'S:O

_9.7

march 17th 1987

1711121141

3.1.6

803

_9.7

17175.01819

3.33

.

8.10

9.7

1718151845

3.3,2

8.14

9.7

1718251854

3.33

8.26

9..7

1719001.929

3.1.6 8.1.1

9.7

i'7'19362006'

_3.10

_8.34

_9.7' i71940:2i009 '

3.26

8.44

9.,7

Table 1

Continued

5

H1/3 (m)

Ti (s)

Tp (s)

1809200950

1809300959

18.09541024

march i8h

3.16

3 .

07

2 . 96

1987

8.41

8 . 40 26

11.4

11.4

11.4

1810001029

3.14

8.57

11.4

1810301100

.2 . 99 8. 52

11.4

1811001129

3.2]. 8 . 46

11.4

1811241154

3 . 00 8 . 40

11.4

181130120:0

3.17

8 37

11.4

1:812001230

.3 . 15

8.61

_11.4

1812301259

3 . 06

_8.27

_9.7

1813001329

3.. 1.2

8.61

_11.4

1813051335

3.31

8

. 95

_11.4

1816481718

2 . 79

_8.27

_11.4

march 19th 1987

1912121241

2. 3.3 8 .

34

10. 5

1912131243

2.33

8. 34

10.5

1912301.259

2.60

8. 59 10. 5 1.912301.300 2 . 54 8 . 64 _{1,1. 4}

19130.01329

2.53

8.31

_11.4

1913001330

2 . 44

_8.23

_11.4

1913301359

2.36

7.. 86

9.7

19 13301400

2.51

8.. 07

11.4

191.40014 3:C

2.51

8.02

11.4

1914301455

2 33

7.78

11.4

march 20th 1987

2011071137

1.93

7.73

10. 5'

2011.301200

1.97

7 .91 10. 5 2012,0 01230

1.87

7.54

10. 5

201.2081238

1.89

7.55

10. 5

2012301300

1.96

7.80

10 ..5

2013061336

1.77

7.66

10. 5

Table 1

Continued

run number

H1/3 (in)

Ti

.( s) .. T.p

():

2312001229

march 2'3th

3.32

1987

7 . 04

9.7

2312301259

3. 30

6.81

9.7

231240131,0

3.18

6.65

7.4

231,3001329

3. 38

6.84

8.4

231.3301359

3.38

6.98

8.4

23.13381408

3 . 50 7'.. 23 '8 .4

2314001429

335

6.97

9.0

23;14'361506

3.27

6.74'

8.4

2316421711

3 . 6.4 7'. 42

8.4

2317301759

3.57

7.19

8.4

2317301800

3 58

7...23

8.4

231.8101839

'3.73

7.06

8.4

2.318281858

3.51

6.. 95

8.4

.231845191.4

3 . 78

7.20

8.4

2319251954

3 . 64

7.27

8.4

2 3 1.9 47 20 17

3.36

7.22

8.4

2320002029

3.18

6 .94

8.4

march 24th 1.987

2411101140

2 . 98

6.68

_6.6

24113012:00

2 .

89

:6.65 .7.4 2:4120012.30 3 .

00

6 .

93

9.7

2412121.24.2 2 . 82 6 . 65

9.0

2.412301,300 2. ff0

6.67

7.0

241327.1.357 2. 84 6 . 9:4

_8.4

'241 3.301400 2 .96

_7.06

_8.4

march 25th 1987

2.5113:01159 2 . 44 7 . 6'9

10 5

2511471.217

2.36

7 .64 9. 0

2512.001229

2.31

7 . 4.5

8.4

25 12.3012 59 2.3.8

7.78

11.4

2513.001329

2.44

7.. 56

9.0

2513:001330

2.. 44

7.56

_9.0

251,3301359

2.21

7.42

11.4

2' 51400142.9

2.28

7.31

8.4

2514001430

2.28

.7 .. 34

9.0

2514301459

2.41

7.. 63

11

. 4'

2514.561526

2.20

7.13

8.4

2515001529

2.19

7 . 0:9

_9.0

251.6001630

2. 35

6.93

9.0

2517001730

2.35

6.88

8.4

2 5.19 00 19 3:0

2.62

6.71

_9.7

25.20002.030

2 .75

7.73

_{15. .7}

Power spectral .dersity (ni2s/rad)

5. Ce CO

4. Os CO

3. Os 00

Power spectral .densty (m2s/rad) 5. Os 00 4. Ce 00 3. Os 00 2. Ce oo' 1. Os' 00 C. Ce 00.

'0

0

Angular freqpency (rad/s)

Angular Frequency Cradle)

DELF.T SHIPHYOROMECHANICS LA BORA TORY

7

Ship : Hr.Ms. Tydeman Dote : march 14th 8,7 Rut, a 1411431207 Si9nal: woveP,eigth

Statistical moments of spectrum.

Mb

l.063e 00 'M 1 ' 7., 947e-'Ol M 2 = 6. 906e-01' 'P4 3 7.233e-01 P4' 4 F 9 195e-0'l

'MS

1.376e00

* multiply by 2 Far waves

OELF T SHIPHYOROMECHANICS LABORA TORY

₁

Ship .i 'Hr...P4s. Tydeman

Date a march 14th 97 'Run .i 1412391308

Signal!, wavehej'gth

Sign. vol.. 2.'064e 00

Period of peak:. 1. OSOu 01 s Average par i'od: '9. 1599 00 s

Stati:sticol moments of spectrum.

.M 0 '= 1. 065e .00 'P4 1 9.206e-0l . M' 2'' 7..'421e-O'l P4, 3' 8. 172e-01 P4 4 '1. I'O2a 00

'M5

l..768e00

Length of run a .29. 00 minu,ta9

Sample. interval a 1'. 000 9

Filter OMEGAIow :0.30 rod/s

Filter 0MECAhIgh a 2.94 rod/s Number of weights: 95

CaI,ibrationfactor: 10. 000 m/Vs2 multl;pl:y by 2 For waves

Length of run a 24. 00 minutes

0

0'

SampLe interval .1.000

C'; Filter OMECAlow a 0.30 rod/s 'Filter OMECAhigh a 2.94 rod/s NUmber of Weights: 85

Calibrationfactor:. 10; 000 m/Vs'2 Sign. val. : 2.' 062e 00 m * 'Period of peak: 1. 145a '01. s

Average per i'od: 9. 403e 00 9

0

0

0

0

0

-4

0

0

0

0

-4 N' 2. Os: 00 1. 0 00 0. Ce 00

4. Oe 00 3. Os 00 2. Os 00 1. 0 00 0. Os 00 c

a

4. Os CO 3.Ua 00 2. Ce OO l.Oa 00 0. Ca 00,

a

a

Power spectral density Cm 2s/rcd)

5. Os 00

Angular frequency (rad/s)

Power spectral density Cm 2s/rad) '5. Os 00

a

a

-I

a

a

N

a

a

N

UELFT SHIPHYDROMECHANICS LABORA TORY

Angular frequency (rad/s)

JDELFT SHIPHYDRUMECHANICS

LABORA TORY

Ship Hr.Ms. Tydeman Date : march 14th 97

Run , 1413451413

Signal, waveheigth

sign. vol. 1. 863e 00 rn * Period of peak. 1. 145e 01 a Average period: 8.696e 00 a

Statistical moments of opectrurn.

Length of run a 29. 00 mInutes

Sample interval a 1. 000 a

Filter OMEGAlow , 0. 35 radIo

FL 1 tsr OMEGAhigh: 2. 94 rod/s Number of weights, 95

Calibrationfactora 1. 741 m/Vs2 * multiply by 2 for waves

Ship Hr. Ms. .Tydsmari Date a march 14th 87

Run 1414301500 SIgnOl: wavahei:gth

Sign. va1. a 2. l40a 00 m *

Peri:od of peak: 1. l45e 01 s Average periodi 8. 38Oe 00 a StatistIcal moments of spactrum M 0 1. 145e 00: M 1

8586e-01

M 2 7. 429e-01 M 3 7. 9b9e-O 1

H4

1.024e00

M5

1.640o00

Length of run a 30.00 minutes Sample interval 1.000 a

Filter OMEGAIow a 0.35 rod/s

Filter OMEGAhigh 2.94 rod/s Number of weights, 85

Cal ibrationfactor. 3. 536 rn/Vs 2 * multiply by 2 for waves

M 0

M 1 M 2 M 3 H 4 M 5 ' 9. 673e-0i 6. '274e-0i 5. 33 7a-0i 5. 603e-01 7.353e-01 1. 1f66e :00

a

a

Power spectrol density (m 2s/rod) 5. Do CD 4. Ca. CO 3. Oo. 00. 2. Ca 00 1.00 0O C. Ce 00

I

[DELFT SHIPHYDROMECHA'NICS LABORA TORY

Angular frequency Crad/e)

Number of weigh tst_85'

calibrationfactor: 1.. 741 m/Vs2

-* multiply by 2 For waves

[DEL

FT SHIPHYDROMECHA NICS LABORA TORY

9

Ship : Hr.Ms. Tydeman

Dote , mörch 1.4th '97

Run : 1 4l:645u1 7j5

Signal: wovohsigth

Statistical moments of spectrum.

Length of run s 30.00 minutes

* multiply by2 for waves

Ship a

HrMs. Tydeman

Date a march 14th. 97

Run 1417251755 Signal. waveiieigth'

Si9,,. vol. a 2. 033e 00 m * Period, of peaks 1. 050e 01 e Average period: 7. 800ó 00 s Statioticol moments of spectrum.

Length of ru,i a 30. 00 minutas

Sample interval 1.000 e Filter OMEG, low 0. 35 rod/s Filter OMEGAhI9h a 2.94 rod/s .M. 0 I.033a 00 M 1 9. 322e-01 'M 2 , .7. 775e-bl' 14 3 - 8. 674'e-Ol 'M 4 1. 161a 00 '14 5 - 1. 823a 00 M 3 1. 026e .00 14 4 1.. 352a 00 14.5 2.l13a 00

a

a

0

0

C)C) Sample interval a 1. 000 G

C, '.4 N Filter OMEGAIOW : 0.35 rod/s

Fi I tar OMEGAhigh a 2. 94 rod/s Angular frequency (rod/a)

Number of weights: 95

CaJibratiotiFactora 3.536 m/Vs2

Sin.

va'l.. a 2. 271a 00 m *

Period of peak. 1. 050o 01 9 Average periodè 7 889e 00 s

M0

1.289e00

14 1 1. 027a 00

14 2 9. 401e-D'l

Power spectral density (m2s/rad) 5. Ce 001 4.Oe 00. 3. Oa 00 2.Oe 00 1. Ce 00 O.ü .00 C)

0

C)

0

C)

d

rJ

Power spectral density (m2s/rad') 5. Os IQQ 4.Oe 00 3.Oe 00 2. Oe 00 1.Oe '00 0.05 00

0

a

a

4.Oe oo 3. Os 00 2. 'Os 00 1'. Oe 00 0. Os 00

a

a

0'

Power spectral density Cm 2s'/rad)

:5.Oe 00

Angular frequency (rod/s) _______

DELFT SH'IPH'YERDMECHAN'ICS LABORATORY

Angular' Frequency (rod/s)

a

a

r1

IL.ELF T SH'iPHYOROMEHANiCS LA 8ORA DRY

10

Ship : Hr.Ms. Tydeman

Data : march 14th 87

Ruh : 1418301849

Signal': waveheigth

Sign. vol. : 2.Q3Qe 00 m *

Perlod of pedk: L 050o 01

Average period: 8. 296e 00 s Statistical moments

of

spectrum.

Length

of

rusi ,: 19.00 minutes

Sample interval : 1. 000

Filter OMEGAIow : 0.30 rod/s

Fl 1 ter OMEGAII'Igh : 2.94 rod/s Number of weIghts: 85

CollbratiOnfactor: 10.000 m/Vs2 multiply by 2 far waves

Ship $ hr.. Ms. Tydeman Data : march J4th 87'

Run : 1419051'935

S'ignol: wavehei.gth

Sign. vol. : 1. 930a 00 in *

Period of peak: 1. l'45a 01

Average period: 8. DOSe 00 a Stat isticól moments of spectrum. M 0 9. 31 4e-01 M I = 7. 310e-0J .M 2 6. 787e-0 1' H 3 = 7. 764 a-Ui H 4 1. 1r04e 00 H' 5 =

j; 990

00

Length of run -s 30. 00 minutes

Somp'le tntervol' : 1.000 a Filter OMEGAIow : 0.35 rod/s

Fl

1 tar OMECAhigh : 2. 94 rod/s Number of wQigh,ts: 85

ColibrOtLonfactor: 3.536 m/Vs2 * multiply by 2 for waves

M 0 1.030e 00 M I -. 7. 799e-01 II 2 6. 829e-0l H 3 7. 160e-01 H 4 9. 056e-01 M 5 1. 342e, cc:

a

0

a' -4

Power spectral density (rn 2s/rad)

5. Os 00

4. Oà 00

3.Oe :00

2. Os 00'

0

0

DELFT SHIPHYDROMECHAA/ICS LABORA TORY

IOELFT SHIPHYJROMECHANICS LABURA TORY

1 1

Signal: waveheigth

Si;gn vol. : 1. 964e 00 m * Period of peak: i. 050e 01 s

Average periods 7. 9199 00 s Stati:stical moments of spectrum. M 0 9. 642e-0l H 1 = _{7.6510_Ui} M 2 7. 066e-0i H 3 7. 867e-01

M4

1..062e00 M 5 1. 687e 00

Length of run : 30.00 minutes

Sompi!e interval : 1.000 s

Fi 1 tr OMEGA low : 0. 35 rod/s

Fi1ter OMECAhigh: 2. 94 rod/s Number of weights: 85

Caiibrationfoctor: 3.536 m/Vs2 * multiply by 2 for waves

* multiply by 2 for waves Power spectral d9risity Ship Hr. Ms. Tydeman

(rn 2s/rad) Date : march 15th 87

5. Os 00

Run : 1512021231

Signal: wovehelgth

4. Os 00 Sign. vol. s 1. 826e 00 m *

Period of peak: 1. 0502 Dl s Average period: 7. 667e 00 s 3. Os 00

Statistical moments of spectrum.

MO =

8. 333e-01 2. Os 00: M 1 6. 829e-0t H 2 = 6 454e-0l M 3 7. t96e-Ol 1.Oo 00 _{M 4} 9. 460e-0l M 5 = '1. 430e

Length

of

run I 29.00 minutes 0. Os OO

a

0

_{Sample interval} S

i.obo

0

0

0

-4 N Fi I ter OMECA low : 0. 30 rod/s

a

Filter OMEGA hi gli 2.94 rod/s Angular

frequency

(rad/s)

Numb@r

of

Weiglitss 85. CalibrationFactors 10. 000 rn/Vs2

0. Os 00

d

0

0

0

a

-4

Angular

frequency

(rod/s)

Ship : Hr. 14s. Tydemon

Do to march 15th 87 Run 1511341204

Power spectral

density

(m 2s/rad) Qg 00 Oe 00 3. Os 00 '2. O. 00: 1.. Os oo 0.09 00 .0. Os 00 C

a

Power spectral densty

(m' 2sfrod) 5. Os 00

An9u.l or FrequenCy Cradle)

fUEL

FT SHiPHYDROMEA'NI'CS LAORA TORY

IDELFT SHIPHYOROMECHANICS LABORA TORY

Ship' .s Hr.'Ms. Tydaman

Date .s march 15th 87

Run s 1512301.259 S'ignaJs woveheigth

Slgr,. vol. : 2. '04'7e 00 m Period of paoks

1. 050e 01 s

Average peri:od: 7 939e 00 s Stat i,st l,cól moments of spectrum.

MO

1,.047e 00 14 1 8. 289e-01 14 2 7. 624e-01' 14 3 ' 8.438é-0l .14 4 1'. 'I.31e 00 14 5 1. 786e. 00'

Length of run' 29. 00 mint.ites Sampl.e interval' : 1'. 000 e

Filter OMEGAI,ow .: 0.30 rod/s

Fl 1 ter OI4EGAhigh : 2.94 rod/s Number of veightss 85

Calibratl,onfactors 1:0. 000 m/Ve2' i multiply by 2 for waves

Sh'i:p : Hr.Ms1 'Tydeman

Date : march 1.5th '87

Run : 15,1.2331303

Si gna'l: waveheigth

Sign. vol.. s 2. 020e 00 m * ,Per:i,od of peak: 1.. 050e 01 s

varage peri:od: 7. 883e 00 s StO.tiss t i'ca'l' moments of spec.trum

M0

'1.020900 M 1 8. 133e-0l M 2 7. 522e-O't 14' 3 8. 354e-0l .M 4 1.. 1 1.9e 00' .14 5 = 1,. 759e .00

Length of run : 30. 00 minutes

SompI:e lntervO'l t. 1. 000 S Fl ItGr OMEGA l,ow 0. 35' rad/s

Fil

ter OMECAh'igh : 21.94 rod/s

0'

C

0

0

0

0

0

-I

N

0'

C

0

0

0'

N

Argu:1or Frequency Crad/s)

Number_Ofwe.i,ghts, 85

Ca'librotl'onfactors 3.536 rn/Vs2

*

multiply by 2

for

waves 4 Os 00

3.09 00

2. Os '00

Power spectral (rn2s/rad) 5. Os 00 4. Ca 00 3. Os 00 2. 0. 00 1.Oa 00 Power spectral Cm ?s/rod) 5. Os 00 4. Os 00 3. Os 00 2. Os 00 dsrsity density

0

0

FDELFT SHIPHYDROMECHANICS LABORA TORY

BELFT SHIPH?DROMECHANICS LABORA TORY

13

Ship. .: Hr..14s. Tydemon

Date i march 15th 87

Run : 1513001329

Signal?: wavohoigth

Sign. vol. : 1. 823e 00 rn *

Per hod OP peak: 9. 0000 00 s Average periods 7.. 4'36e 00 s

Statisti?cai moments of spectrum. M 0 8. 308e-01 14 1

1020e-01

14 .2 6. 809e-OI 14 3 7. 739e-01 14 4 = 1?..034e 00 14 5 1.. 596e 00

Length of run a 29. 00 mInutes

SampLe interval a 1. 000

Filter OI4ECA.low 0.30 rod/s Fi I ter OMECAhigh 2. 94 rod/s Number of weights: 85

CalIbrationfactor: 10. 000 rn/Vs2 rnultip1:y by 2 for waves

Ship : Hr..Mè. Tydeman Date a march 15th 87

Run

: 151330 1359

Sighals ,woveheigth

Statistical moments

of

speotrum.

Length

of

run : 29.00 minutes Sample Interval 000 s

Filter OMEGA1?ow a 0.30 rod/s

Filter 0MEGAhtgl a 2.94 rod/s

Number of weights: 85

Cal.ibrati!onfactor: tO. 000 rntVs2 * multiply by 2 for waves

14 0 9. 4449-01 14 ,1 7.,581e-Ol 14 2 7. 1300-01 M 3 8. 087e-0l M 4. 1. 106e 00 M 5 1. 768a 00

SIgn. vol. a 1. 944e 00 m

Period of peak: 1. 050 01 s Average period:. 7. 827e 00 s 0. Oo 00

0

0.

0

0

d

Angular frequency (radVs)

l.Oe 00

0. Os 00

0

0

0

0

0

0

0

N

Power spectral density (m2s/rad) 5. Os 00 4 Os 00 3. Os 00 2. Os 00 1.Oe 00 O.Os 00

a

C)

a

tJELFT SHIPHYOROMECHANICS LABORA TORY

4. Os 00 3. Os 00 2. Os 00 l.Oe 00 0. Os 00

a

a

0

Angular frequency Cradle)

Angular

frequency

Cradle)

JDELFT SUIPHYROMEcHANICS LABORA

TORY:

Ship : Hr. Ms. Tydeman

Dots march 15th 97 Run : i514001430

Signal:. wovehelgth

Stat istica.1 moments of spectrum.

Length of run : 30. 00 minutes Sample interval 1.000 s

Filter OMECAlow : 0.35 rod/s Filter OMECAhigh : 2.94. rod/s Number of weights: 85

Calibrotionfoctor:. 3. 536 rn/Vs2 * multiply by 2 for waves

Ship : Hr.Ms. Tydeman

Date :, march 15th 87

Run : 1517451814

S1:gnal: waveheigth

Sign.. vol. 2.046e 00 m * Period of peak: 1. 050e 01 s Average period: 7.913e 00 s Stati:sticol moments of spectrum.

Length of run s 29. 00 minutes

Sample interval' : 1.000 9

Filter OMECA1ow : 0.30 rod/s

Fi1ter OMEGAhtgh : 2.94 rod/s Number of weights: 85

Co1.ibrotiOnfactor: 10. 000 m/Vs2 * multiply by 2 for waves

MO

l.04.6e

ob

M 1 8. 309e-01

M 2

7..647e-Ol .M 3 9. 454e-Cl M 4 1. 133e 00 H 5 1., 792e '00 P4 0 8. 590e-0l P4 1 7. 241 s-Cl M 2 6. 99le-01 H 3 = .7. 900e-Ql

M4 =

1.048e 00 H S - 1. 602e 00

Sign. vol. :

1.854e 00 m0

Period of

peak.

.1, 0500 01 s

Averagø period: 7. 453e 00 s

0

0

N

0

0

-I

density PowGr spectral (m 2s/rad) 5. Us 00

0

0

N C)

Power epectrol (m2e/rad) 5 Op 00 4. Op 00 3. Oe 00 2. Oe 00 1. Oe 00 0. Oe 00

0

0

0

l.6e. 00 1. 2e 00 '8. Oe-0l 4. Op-Oil 0. Oe 00 density

Argulor frecuency (rad/s)

DELFT SHIPHYDROMECHANICS LABORA TORY

Power spectral density (m2s/rod)

2. Op 00

Arigulor frequency (rod/s)

D5LFT SHIPHYLJROMECHANICS LABORA TORY

15

Ship : Hr.Ms. Tydeman Dote : march 15th 87 Run : 1518201849

Signal: wavehelg.th

Sign. vol. : 1. 88Le 00 m Period of peak: 9. 692a 00 e Average period: 7. 588e 00 s Statistical moments of spectrum. H 0 8. 849e-01 M 1 7. 326e-01 M 2 6. 987o-01 M 3 7. 859e-0l

M4

1.050000

M5

1.635e00

Length of run £ 29. 00 mlnutos

Sample interval : 1. 000 s

Filter OMEGAlow : 0.30 rod/s

Filor OMEGAhIgh

2.94 rod/s Number of weights: 85

Calibrotionfactor: 10. 000 m/Vs2 * multiply by 2 for waves

Ship : Hr.Ms. Tydemon

Date : march 15th 87 Run : 1516301900

Signal: waveheigth

Sign. vol. : 1. 792e 00 m * Period of peak: 9. 692e 00 s Average period: 7. 255e 00 s Statistical moments of spectrum. M 0 8. 030e-Ol H 1 6. 9540-01 M 2 6. 835e-01 M 3 7. 756e-01

M4= 1.020e00

M5

1.533e 00

Length of run s 30. 00 mLnutes Sample interval s 1.000 s

Filter OMEGAIow : 0.35 rod/s

Filter OMEGAhIgh : 2.94 rod/s Number of wei9hts: 85

Coiibrationfactor: 3.536 m/Vs2 * multiply by 2. for waves

a

0

N

0

0

0

0

0

0

0

0

N

Power spectral density Cm 2s/rad) 5.Oe 00 4.. Os 00 3.Oe 00 .2. 0 00 1. Os. 00 0. Os 00

a

a

a

Angu.lar frequency Cradle)

IDELFT SHIPHYOROMECHANICS LABORA TORY

AngUlar frequency Crad/e)

a

a

a

a

N

IOELFT SHIPHYOROMECHANICS

LA,I3ORA TORY.

Ship : Hr.Ms. Tydeman Date : march 15th 87 Run :' 1518551924

Signal:

woveheigth

Sign. vol. : 1. 777e 00 rn' *

Per

led. of peaks

9. 692e 00 s Average period: 7. 196e 00 s Statistical moments of spectrum.

M 4 l.1'73e 00 M 5 1. 903e 00

Length

of run : 29. 00 mInutes

Sap1.e Interval i 1.000 S

Filter OMECA1!ow : 0.30 rod/s Filter OMECAhigh : 2.94 rod/s

Number of weights: 85

Cal ibrotionfaOtor: 10. 000 rn/Vs2 * mul tiply by 2 for waves

Statistical moments of spectrum. M 0 8. 451 e-01 M I 7.219e-OJ M 2 7 053e-01 M 3 '8. DiCe-Cl 14 4 - 1.064e DO 145'- 1.634's 00

Length of run : 29. 00 mInutes

Sample interval : 1. 000 s

Filter OMECAIow : 0.30 rod/s

Filter OMECAhigh : 2.94 rod/s

Nun7ber of weights:' 85

Cal ibrat,i bnf actor': 10. 000 m/Vs2

* multiply by 2 for waves. .1 0 - 7. 897e-01

M 1 = 6 895e-01 M 2 6. 987a-01

14 3 ' 8. 345s-01

1.6e 00 Sign. vol. : 1. 839e 00 m *

Period of peak: 9. 692e .00 a Atveroge period: 7. 355e 00 s 1.2e 00

Power spectral densIty Ship :'

Hr.Ms.

Tydernan

(m,2s/rad) Dote : march 15th 87

2. Os 00 Run : 1519301959 Si9nal: wavehaigth

a

'-4 0. Os 00

a

0

a

Power spactrai dansity (m,2strod) 2. Oa 00 1.61 00 1.2e 00 8. 09-01 4.'Oe-Ol 0.09 00

0

0

0

Angular frequency rod/s)

DELFT SHIPFIYOROMECHANiCS LABOR/I TORY

0

0

N'

J:OELFT SHIPHYDROMEC/-IANICS LAIBORA TORY

17

Ship s Hr.Ms. Tydemari

Data : march l6,t

87

Run : 1609371006

S'igna 1: waveheigth

Sign. vol.. a 1. 255e 00 m * Period

of

peaks 9 000s' 00 e Averogs periods 8. 008e 00 e

StatiStical moments

of

spectrum. M 0 3.-937a-0i H 1, 3. 099e-0

H 2

2. 765e-01 H 3 2. 964e-01' H 4 3. 950a-01 H 5 - 6. 479e-01

Length

of

run a 29. 00 minutes

Sample interval 1.000.s Filter OMECA1 ow a 0. 30 rod/s

PSI tar bMECAhi9h , 2. 94 rod/s Number of weights: 85

Calibrationfoctor: 10. 000 m/V92 multiply by 2 for waves

Stoti,sticoi moments

of

spectrum.

Length of rtn a 20. 00 mInutes

Sample interval a 1'. 000 s

Fl 1 tar OMEGA Iow a 0. 35 rod/s

Fl I ter OMEGAhIgh 2 94 rod/s Number

of

weLghtss 85

Col:tbrati'onfactor: 3. 536 rn/Vs 2 multiply by 2 for waves

M 0 4. 097e-0 1 M 1 3. 258e-01' M 2 = 2. 895è-bl M' 3 - 2. 9'74e-01 N 4 - 3. 70e-01 M 5 5. 738e-0l

1'.'6e 00 Sign. vol. a 1. 279e 00 m *

Period

of

peak: 9. 0002 00 s Average period: 7. 882e 00 s 1. 2e 00

0. Oe 00

0

0

0

0

a

Angular frequency (rod/s) 0,

0

N

0

a

Power spectral density Ship a Hr. 'Ms. Tydemàn

(m - 2s/rod) Date a march l6th 87

2.Oe 00 Run a 1609481 0 itS

Power spobtrol density

(m2e/rad)

2. .00 00

1. Be '00 1.. .2e 00

8. 00-01

4. Do-Ol. c!.Oe_01

6.Oe-01

4. Do-UI

2. Os-Ol

0.00 00

a

a

0

AngulOr frequency Cradle)

a

0

(U

DELFT SHIPHYDRUMECHANICS LABORA TORY

Power spectral density

(m 2s/rad)

.1.00 00

Angular Frequency (rad/s)

DEL FT SHIPHYDROMEcHANICS LABORATORY

18

Ship

:

hr. Ms.

Tydemari

Data

:

march 16th 87

Run :

16W15l044

Si(gnaJ'. ,wavehQ igth

Sign. vol..

i

1. 1900 00 m

Pariod of peaks.

9. 000s 00 5

Average periods

7. 694e 00 s

Statist1ca1 moments of spectrum.

H 0

3.54 1 a-UI

H I

2.. 991!a-Q1 M .2

2. 726a-01

M 3

3. l2le-U1

H 4

4. 4430-01

M 5

7. 642e-01

Length of run

s

29. 00 minutes

Samplle interval

:

1.000 s

Filter OMECAIow

,

0. 30 rod/s

Filter OMECAhIgh :

2.94 rod/s

Number of weIghts: 85

Calibrationfoctors

10. 000 m/Vs2

* rnui.ti;ply by 2 for waves

Ship

: ?1r. Ms.. Ttydeman

Dote

:

march 16th 67

Run :

1610301100

Signal': wavehoigth

Sign.

vol.

:

1. 123e 00 m

Period of peak:

9. CODe 00 s

Average period:

7. 516e 00 s

Statistical moments of spectrum.

Length of run

30.00 minutes

"Sample interval

1.000 s

Filter OMEGAIow.

s

0.35 rod/s

Filter OMECAhIgh : 2. 94 rod/s

Number oP weights: 85

Calibrationfactor: 3.536 m/Vs2

* multiply by 2 for waves

'M 0

3. 150a-01

M 1

2. 634s-01

M 2

2 554e-01

M .3 . 3. ,01:3e-01 P 4

4. 396e-0l

H 5 -

7. 676e-01

a

a

0.. Os 00

a

0

a

0

(U

0

.0

0.0e 00

a

a

a

l.2e 00 8. Og-Ol' 4. Oe-01 0.Oo 00

a

a

a

Angular frequency Cradle)

a

0

-4

DELFT SHIPHYDROMECHANICS LABORA TORY

0

0

N

Angular frequency Crad/e).

Number of weights:

Calibrotionfactors 3.536 rn/Vs2 * multiply by 2 for waves

[DEL

FT SHIPHYQROMEcHANICS LABORATORY

Stat lstl:cal moments of spectrum.

Length of run s 29.00 minutes

Sample: interval s t. 000 s

Filter ,0MECAJow s 0.30 rod/s

Filter OMEGAhigh s 2.94 rod/s Number of weights: 85

Cal lbrat:I:onfactors 10. 000 rn/Vs 2 multiply by 2 for waves

Statistical moments of spectrum. M 0 3. 746e-0l M 1 = 3. 099e-Di M' 2 3. 03le_0l M 3 3 696e-01: M 4 5. 635e01 M 5 - i. 0:1 4e 00

Length of run a 30. 00 minutes Sample Interval : 1.000 s

Filter OMECA1ow s 0.35 rod/s

Filter OMECAhIgh s 2. 94 rod/s 85

1.6e 00 Sign. vol. s 1. 257e 00 m *

Period of peaks 1. 050a 01 s Average periods 7. 815e 00 s 1.2e 00

1,. 6o 00 Sign. vol. 1. 224e 00 m *

Period of peaks 9. 692e 00 s Average periods 7. 594e 00 s M 0 - 3. g48e-0J M 1 3 1

74e-0'l

=

2.991e01

M 3 3. 503e0l M' 4 5. 1 74e-0l M 5 9. l9e-01

aa

N

aa

-4

Power spectral dehsity Ship s Hr.14s. Tydeman

Cm2s/rad) Dote s march 16th 87

2 Ce 00 Rtin : 1610551124

Signals wavaheigth

Power spectral density Ship : Hr.Ms. Tydeman

Cm 2s/rad) Dote s march 16th 87

2.00 oa Run s 1611301200

Power spectral (m2s/rod) 2. Os 00 l.6e 00 l.2e 00 8. Os-OX 4. Oo-01 0. Os 00

0

0

0

Power spectral density (m2s/rad) Ce 00 1.. 6e 00 1.2a 00 8..Os-0l 4., Os-OX 0. Os 00 densi ty

0

Angular frequency (rad/s)

I OELFT SHIPHYORUMECHANICS LMBRA TBRY

Angular frequency (rad/s) _______

JDELFT SHiPHYtROMECHANICS LABURA. TORY

20

Ship s Hr.Ms. Tydeman

Date s march 16th 87.

Run s 1.611.351204

'Signals Wavheigth

Sign. val. s 1... 2l5e 00 m

spectrum.

Length of run : 29. 00 minutes

Sample interval 1. 000 e Filter DMECAlow a 0.30 rad/s

F! I tGr Ot4ECAhigh s 2. 94 rod/s Number- of weights, 85

Cal.ibratfonfoc,tor: 10. 000 m/Vs2 * multiply by 2 for waves

Ship : Hr.Me. Tydeman

Date a. march 16th 87

Run a. 1612251254 Signal. .wäveholgth

Filter OMECAhIgh a 2.94 rod/s

Number 'of weights: 85

Cal

ibrationfactors

10.000 'rn/Vs 2

multiply by 2 for Waves Period of peak: 9. 692e 00 s Average periods 7. 620e 00 s Statls.ticól moments of 14 0 3. .690O-01 M. 1 3. 04 3s-0l 14 2 2. 975e-0l M 3 3. 629e-0l M 4 5. 51 3e-01 14 5 9. 866e-01

L}

Length of run a 29. 00 minutes

0

0

0

0

0

0

Sample interval a

1.000s

0

-I

rJ Filt,er OMEGAlow a 0.30 rod/s

'Sign. vol. 1. 3410 00 m * Period of peak: 9. 692a 00 s Average period. 7.702a DOs Statistical moments of spectrum. M 0 = 4. 494e-0l M 1 3. 666e-'Ol 14 2 - 3. 51'2e-0l 14 3 4 119a-0l M 4 5. B93e-0l M 5 9. BOQo-Ol

Power spectral density Cm 2s/rad) 2 Os 00 'l.6e 00 i. 2a 00 8. Os-Ol 4. Os-O'l

0

0

lIBEL

_{FT SHIPHYOROMECHANICS LABORA TORY}

Power spectral dsnsfty Cm" 2s/rad) 2. Os 00 i.6e 00 l.2e 00 8. Os-Ui 4. Os-Ui O.Us CO

[DELFI SH1'PHYDRBMEC'HANICS LABORA TORY

21

Length of run : 30.00 minutes

Sample. interval : 1. 000 e

Filter OMECAlIoW s 0.35 rod/s

Fl Iter OMECAhigh s 2. 94 rod/s Number of weiightss 85

Colibrotionfoctor: 3.536 m/Vs'2 multiply by 2 for waves

ShIp s

Hr.Ms. 1ydmon

Data : march 16th. 87

Run , 161.3051334

Signals wavaheig,th

Sign. vol. i 1. 356e 00 m *

Length of run. : 29.00 minutes

* multiply by 2 for waves Period of peaks g 692e 00 s Average periods 7 64le 00

Statistical moments of spectrum. M 0 4 '594'e,-O'l H 1 3. 777e-0'l H 2 '3. 707e-01 M 3 4. 497e-0,1 H 4 6. 64'2e-01 H 5 = 1. 134e 00 M 0 4.,951e-0l M 1. 3.95Le-0'1 H' 2' 3. 796e-01 M 3' 4. 576e-01 .M 4 6. 975e-01'

M5

1...278e00

a

0

U

0

0

Sample interval : 1.000's

a

'-4 N Filter OMECAloW s 0.30 rod/s

Filter OMECAhI9h. : 2.94 rod/s Angular frequency. Cradle)

Number of Weighte: 95 Calibrcs.t'ionfactor: 10. 000 m/Vs'2 Ship 5 Hr.Hs., Tydemon Date s march 16th 87 Run s 1612451315 .S1gna1s, waveheigth

SlIgn. vol. s

1.393e00m*

Period oP peaks 9. 692a 00. Average peri.odi 7.. 7tSe 00 s Stat istilcal moments of spectrum..

0. Oo 00

0

0

0

a

a

'-4

Power- spectral (m 2strod)

2.Oe 00 ____

1.6a 00 l.2e 00 8. Os-Ol 4. Oe-01 0. Os 00

a

a

a

Power spectral density (m2e/rad) .2. Ga 00 l.6e 00. 1. 2e .00 8. Oe-01 4. 00-01 0. 0 00 CD

0

density CD

0

0

0

Angular frequency Crad/e)

0

0

Angular frequency Crad/e) N

0

0

N

.IOELFT SHIPHYOROMECHANICS LA&BRA TORY

-)DELFT SHIPHYOROMECHANICS LABORA TORY

Ship. : .Hr-. Ms. Tydeman Date s march 16th 87 Run , 1619451414 Signal, wavehai.gth Ship £ 'HrMs. Tydeman Date , march 1,6th 87 Run , 'It&1..4021.432 Signal,. wovehe igth

Sign. vol. a 1.. 396e 00 m * Period of peak: 9. 692e 00 s Average periods 7. 703e 00 s Statist icol moments of spectrum. M 0 4.. 871e-0l M 1 3. 973e-0l M 2 3. .822e-0l M. 3 4. 51 7e-0l M 4 6. 51,3e-Ol 14 5 1. 093e .00

Length. oF run a 30. .00 minutes

Sample interval a 1. '000 s

F'i I ter OMEGA'low ,. 0. 35 rod/s

Filter OMECAhigh : 2.94 rod/s Number of weights: .85

Cali.brati.onfactors 3.56 m/Vs2 multiply by 2 for waves

Sign. vol. ., 1. 232s 00 m *

Period of peaks 9. DUDe '00 s Avora.g periods 7. 1.49e 00' s

Stat I sti cal moments of spectrum..

14 0 3. 793e-0l '14 1 3.334e-Ol 14 2 3. 520o-0l M 3 - 4. 563e.-01 14 .4 7. 220e-0'l 'M 5 l.31'le 00

Length of run , 29. 00 minutes

Sample interval a 1. 000 s Filter OMECAlow : 0.30 rod/s

Filter OMECAhI9h , 2. 94 rod/s Number of weights, 85

Calibrotionfoctor, 1.0.000 m/Vs2 multiply by 2 for waves

Power spectral (m 2s/rad) 2. Oo 00 1.69 00, 1.2a 00. a. 09-01 4. 0e-01

[DELF

T .SHIPHYOROMEcH4NI CS LA OORA TORY

Power spectral density (rn 2s/rad) 2.09 00 l.6e 00 .1.2e 00 8. 0e-01 4. Oe-0l 0.09 00

a

a

0. densi ty

Angular frequency (i-ad/s)

0

a

c'J

DELFT SHIPHYOROMEGHANICS LABORATORY

23

Ship s Hr. Me; Tydrnan Date : march l6th 87 Run s l6J530l600

Signals WOVOhOIgth

Sign. vol. , 1. 376e 00 rn Period of peaks 9. DUDe 00 s Average period: 7. 192e 00 s

Statistical moments of spectrum. H 0 = .4. 734e-b1 H I - 4. l36Q-0l M 2 - 4. 262à-0l M. 3 5. 294e-0l ?4 4 = 7. 796eOl

M5

l.309a00

Length of run : 30.00 minutes

Sample interval : 1.000 s

Filter OMECAlow : 0. 35 rod/s

Filter UMECAhi9h s 2.94 rod/s Number of weights: 85

Calibrationfactors 3. 536 m/Vs2 .* multiply by 2 for waves

Ship a Hr. Me. Tydeman

DatQ march l!6th 87 Run a I6i627 11657

SI gnal.a wavehe igth

Sign. vol. s 1. 340o 00 m * Per iod of peaks 9. COCa 00 s Average periods 7. 214e 00 s Stat tetIco1 moments of spectrum.

Length of run a 30. 00 minutes

Sample interval s

LOCUs

Filter OMEGA1ow s 0.35 rod/s Filter OMEGAhIgh.. .2.94 rod/s Number of weights: 85

Cal ibratlonfactor: 3. 536 rn/Vs 2 * rnu.l tiply by .2 for waves

M 0 4. 486e-0l M 1 3. 908e-0 1 H 2 4. 025e-01 H 3 4. 99i.e-Q1 H 4 7. 33Le-Dl

M5

t.,230e00 0.09 00

a

a

0

a

a

Angular frequency. (rad/s)

a

a

N

a

Power spectral

(rn2s/rod)

2.Oe 00

1. Ce 00

i.2o 00

8. 0-Oi

4.09-01

0.Oo 00

0

0

a

1.. 6e 00

1..2o 00

8.Oe-01,

4. Do-Ui

0. Do 00

density

0

'Angular Frequency (rod/B)

IOELFT

HIPHYORO/ECHANICS LABOA TORY

Power spectral density

Cm

2s/rod)

2.Oe 00

AnguFar Frequency cradle)

0

a

N'

OELFT SHIPHYOROMECHANICS LABORA TORY

Ship .1 Hr.Ms Tydeman Date march 16th 87 Run. , '1617251:755 Signal: wovehelgth Number of weights, 85 Cal lbrationfac.tor: 3. 536 rn/Vs 2 * multiply by '2 for waves

Ship :. Hr.Ms. Tydemari

Data

,march 16th 87

Rut, a 1618301900

Signals Wavaheig,th

Sign..vol. 1. 425e 00 rn

Period of peaks 9. 692e. 00 a Average per i'och 7. 036e 00 a Statistical moments of spectrum. 'M 0 5. 076e-0l ' 1 4. '532e-01 2' 4. 692e-01 P4 3 5. 700e-0l -P4 4 9. 058e-0l p4, 5 .= 1. 297e 00

Length of run a 30. 00 minutes

Sample interval a 1.000 a

Filter OMECAI.'ow a 0.35 rod/s

Filter OMECAhigh a 2.94 rod/s Number of wai9hts: 85

-Cal ibrot ionfactors 3. 536 m/Vs2 * multiply 'by 2 for Waves

Sign. vol. s 1... 325e 00, m

Period. of peak. 9..000à .00 e Average peri:odi 6. 825e 00 s Statistical moments

of

spectrum. P4 0 4. 389e-01 P4: 1 4 04'1e.-01 M 2 4. 3699 -01 M 3 5. 6029-01 M 4 8.383e-01

M5

1.423e00

Length

of

run 30.00 minutas

0

0

Sample interval : 1.000 a N Filter Ot4EGAlow , Fl l:ter OMEGaihigh : 0.35 rad/è 2. 94 rad's

a

0

0

0

0

-4

1.6a 00 1.2e 00 8. Os-UI 4. Os-Ol 0. Os DO

0

0

d

0

Angular frequency (rad/s)

OELFT' SHIPHYDROMECHANICS 'LA BORA TORY

25

Number of weights: 85

Calibrationfactor: 3.536 m/Vs2 multiply by 2 for Waves

Sign. val. 1:. 455e 00 rn *

Period of peoka 9. 692e 00 s Average period: 7. 5059 00 s Statistical moments of spectrum. M 0 M 1 = 5. 290e-0i, 4. 428e-D1 M 2 4 3439-01 P4 3 5. uSe-UI M 4 = 7. 223e-01

M5

1.189e00

Length of run : 30. 00 minutes

Sample interval 1. 000 s Filter UMECAJow : 0.35 rod/s

Filter OMECAhi9h : 2. 94 rad/s

Power spectral density Ship : Hr.Ms. Tydeman

(m2s/rad) Date : march 16th 87

2.Oe 00 Run : 1619462016

Power spectral density Cm 2s/rod) 5. Os 00 4 Os 00 3. Os 00 2.Os OO, 1.Os OO 0. Og 00

a

a

ci

Angular frequency (rad/s)

}OELFT

SHIPHYDROMECHANICS LABORA TORY

a

a

Ship : 1-. Ms. Tydeman Date : march 17th 67 Run ,1711.li2fl4l S1gnol': woveheigth

1DELF T S/i [PH YOROMEC/iANICS LABURA TORY

Statistical moments

of

spectrum.

Length of run Sample interval Filter .OMECAlow Filter OMECAhigh. : Number of wei'hts: Cal ibrat

ion

factor:

* mul tiply by .2 for waves

30. 00 minutes. 000 9 0. 35 rod/s 94 rad/s 85

3.536 m/Vs2

Power spectral density Ship Hr. 14s. Tydemon

(rn'2slrad) Data : march 17th 87

5. Os 00 Run : 1717501819

Signal: waveheigth

$. Os DO _.___ - Sign. vol. : 1. 667a 00 m *

Period of peak: 9. 692e 00 9 Average period: 8. IDle 00 e

3.Oe OO.__

Stat let 1 cal moments of spectrum. M 0 6.946a-0l 2. Os 00 14 1 5. 387a-01. 14 2 4 661.e-01 l.'Oe 00 M 3 4. 677o-0l H 4 5. 599o-01 H 5 .7. 947e-Ol

Length of run. i 29a 00 minutes 0. Os .00

a

a

_a

Sample Interval .j.000s

a

a

-1

N

s 0. 30 rod/s

a

Fi 1 tar OMEGA 1 ow

Ff1 tar OMEGA!, I gh : 2. 94 rod/s Angular frequency Cradle)

85 Number of weights:

Cal ibrotior,f actor: 10. 000 m/Vs2 Sign.

vol.

1. 579e 00 m *

P9,-i!od of

peak: 9. 692a 00 s Average period: 8.032e 00 s

MO -

6. 233a-0l .M 1 4. 875e-01 H 2 4. 287a-O'l. H 3 4. 426e-01

M4

5, 5l8-0l

M5- 8. .251e-0l

Power spectral dansi'ty Cm 2s/rad) '5. Os 00 4. Os 00 3.Os U0 2. Os 00 l.Oe 00 0. Os 00 C) C)

0

OELFT SHIPHYDROMECHANICS LABOR4 TORY

Power Gpoctral (m2a/rad) 5. Os 00 0. Os 00

0

C)

d

0

0

-a

Angular frequency (rod/a)

density

Anqular Frequency (rod/s)

C)

0

Number of wei.ghts: 65

- . . . Cc,librationfoc,tor: 10.000 rn/Vs2

I:DELFT SHIPHYORO/'IECHANICS LARORA TORY

Ship a Hr.Ms. Tydemon

Date a march 17th 87

Run : 1:718151845 'Sign alt' Wavehe igth

Sign. vol.. .' 1. 658e 00 m

Period of peak.

9. 692e 00 a

Average periods 8. 141e .00 a 'Statistical moments of spectrum.

Length of run 30. 00 mInutes Sample interval : 1.000 S

Filter OMECAIow a 0.35 rod/s Filter OMECAhigh a 2. 94 rod/s Number of weights: 85

'Colibrationfoctor: 3. 536 m/Vs2 * muit1ply by 2 For waves

Ship : Hr.Ms Tydeman

Jata a march 17th. 87

Run a 1718251.854 Signal: wav&ie'1gth

Sign. vol. a 1. 666e '00 m * Period 'of peak. 9. 692e 00 a A,verOge pori'odi 8. 263e 00 s

Statistical moments of spectrum. M 0 6. 940e-01 14 1 5. 277e-0'l

I

14 2 4. 482e_01 14 3 4. 458e-01 P4 4 5. 406e-0J 'M5 8.017a-01

Length of run a 29. 00 minutes

'Sample interval a 1.000 s

Filter 0?4ECAlow a 0.30 rod/s

Filter OMEGAhigh a 2.94 rod/s

* multiply by 2 for waves M 0 6.. 972e-01 141 5. 304s-01 14 2 4. 571e-01 M 3 4. 635e-01 M' 4 - 5. 795e-01 M 5 ., 8. 965e-01

0

a

-a 'N

DELFT SHIPHYORtMECHANICS LABORATORY

Power Gpectrol density Cm 2s/rad) 5. Oe 00 4. Ce 00 3. Do 00 2. Oo 00-1.00 00

0

C) N

DELF.T SHIPHYDROMECHAt'ICS LABORA TORY

* multiply by 2 for avos

Ship : Hr.Ms. Tydeman

Date , march 17th 87 Run , 17l9362006

Signois wavahaigth

Sign. vol. : 1. 552e 00 m *

Period of peak: 9.692e 00 s Average period: 8 344e 00 s Stat istical moments

of

spectrum. M 0 6. 023e-0i (4 1 4. 536e-01 M 2 3. 869a-0 1 M 3 3. 942e-01 M 4 4. 978e-01 M 5 7.696e-01

Length of run : 30. 00 minutes

Sample interval :

L000 s

Filter OMEGAlow : 0. 35 rod/s

Fi-lter OMEGAhIgh: 2a94 rod/s Angular frec1uency (rod/s)

- Number

of

weights. 85

Calibrationfactor:3aS6Vs2..

* multiply by 2 for waves Power spectral densIty

Cm

2strad)

5. Ce CU Ship s !r.. Ms. Tydamon s march 17th 87 Run s 1 71900F929 Signal. wavohe1gth 4. Ce DO Sign. va:l. , 1. 578w 00 rn

Period of peaks 9. 692o 00 s Average periods 8. iOZe 00 e

3. Ce '00

Statistical moments

of

spectrum. .M 0 6. 222a-01.

2.Oe D0'_,

14 1 4

B22e-0l

14 2

4.293e01

l.Oe 00_

14 3 4. 6l2e-01 14 4 6. 139o-01 (4 5 9.931e-0J

0.Oe 00 Length of run a 29. 00 minutes

o

a

C) C)

0

C) Sample Interval

s 1.-BOOs

C) (j Filter OMECAIow s 0.30 rod/s

Filter OMECAhigh , 2.94 rOd/s Angular frequency (rOd/s)

Number of weights, 85 Co1Ibrotionfactors 10.000 rn/Vs2 0. Oe 00

a

a

0

C)

0

Power spectral Cm 2s/rad) 5. De 00 4. Os 00 3.Oó 0O.._. 2. Os 00' 1.Oo. DO 0. O 00

a

a

C) density

An9u.lar frequency Crad/e)

.{.LFT

SHIPHYOROMECHANICS LAOBRA TORY

29

Ship Hr.Ms Tydemon Date : march 17th 97

Run , 1719402009 Signal: wovahaig,th

Sign. vol. 1-. 632e 00 m Period of peaks 9.892o 00 AverogQ periodz 9 439e 00 s Statistical moments of spectrum.

Length of run 29.00 minutes Samplo interval s 1.000 s Filter -OMECA-low a 0.30 rod/s Filter OMECAhI9h , 2. 94. rod/s

Number of woI9hts 85

Ca1-ibrotionfoctor: 10. 000 m/Vs2 * multiply by 2 for waves

M 0 = 6.661e-0.1 M 1 4. 959e-Dl M 2 4.195a-Di 14 3 4.231a-0l 14. 4 5. 3330-01 14 5 8;279e-0l

a

C)

a

a

N

I

OELFT SHIPHYOROMECHANICS LABORA TBR Y

Filter OMECAhi9h a

2.94rod/s

AngULar frequency Crad/e)

Number of waightsa 95

[DaFT SHIPHYDROMEcHANICS LABOR TORY

Colibrationfactora 3.536 m/Vs2 * multiply by 2 for waves

Sign. vol. a 1.534e 00 m *

Period of peaks 1. l45o 01 s Average perIods 8.. 4039 00 a Statistical moments of spectrum.

Collbrationfactor: 10.000 rn/Vs2 * multiply by 2 for waves

1.6e 00 Sign. vol. a 1.5799 00 m *

Period of peaks 1. l45e 01 e Average perioth 8.414e 00 s Statistical moments of spectrum. M 0 6. 235e-Oi 1.2e 00 B. 00-01 M I 4 656e-0l H 2 4. 0939-01 M 3 4. 379e-01 4. Oo-01 _{M 4 5. 788e-01} M 5

9.i09-D1

0. Oo 00

Length

of run : 30.00 minutes

0

0

0

0

0

Sampl.e interval s 1. 000 s

-4

(j

0

Angular frequency (rod/a)

Filter OMECAl ow ,

Filter OMEGAhI9h.

0. 35 rod/s 2.94 rod/s Number of weights, 85 H 0 5. 884e-01 8.00-01 H I 4. 400e-01 M 2 3. 956e-01

M 3

4. PODe-Ol

4. Do-Ui

_{H 4 5o 292a-0l} H 5 7. 975e-0l

00 Length of run i 29. 00 minutes

0. Do

0

0

0

_{Sample interval} s 1. 000 s

0

0

0

C'; _{Filter OHECA1ow} a 0.30 rod/s

Power spectral density Ship Hr.14s. Tydeman

(rn2s/rod) Dato , mórch 16th 87

2.Oe 00. Run a 1809300959

Signals wavaheigth

Power spectral density Ship a Hr.Ms. Tydeman

Cm 2s/rod) Date a march l9th 97

2.Oo 00 Run a 1609200950

Power epectral dénsi ty

(m 2s/rad)

2. Oe 00

1.6e 00

I.2Q 00

8. 00-01

4.. Oe-01,

0. Oe 00

OELFT SHIPHYOROMECHANICS LABORA TORY

Power epectral density

(m2s/rad)

2. Ce 00.

1. 6e. CO

1. 2a 00

8. Ce-Cl

4. Oe-Ol

0. Oo 00

31

Ship

Dote

, Run ,

Signal,

Statistical moments of spectrum.

* multiply by 2 for wóves

JOELFT SHIPHYOROMEGHANICS LABORATORY

Hr. Ms. Tydaman

march 19th 97

1909541024

waveheigth

Signal: wovahaigth

spectrum.

Angular frequonc># Cradle)

Number of weights:

Cal ibrat torifactor:

* multiply by 2 for

85

1p. 000 m/Vs?

waves

Length of run

29.00 minutes

a

a

Somple i?ntQrvol

:

1.000 9

N

_{Filter OMEGA1ow}

:

0. 30 rod/s

Filter DMECAIiigh s

2. 94. rod/s

'M 0

5. 466e-01

14 1

4.161e-0l

M 2

3. 720é-Dl

M 3

4 062e-0l

M 4

5. 449e-0l

M 5

8. 667e-0l

a

a

0

0

a

.-I

Peri:od of peak:

I. 145e 01 S

Average period: 8.574e 00 S

Statistical moments of

14 0

6. l63e-01

M 1

4. 5t7e-01

M. 2

3. 823a-0l

14 3

3. 942o-01

M 4 .

4. 566e-Dl

M 5 =

6. l29a-01

Length of run

30. 00. minutes

a

a

a

c

a

a

Sample interval

1. 000

a

'-I I-"

_{Filter OMECA1ow}

0. 35 rod/s

Angular frequency Crad/e)

Filter OMECAhigh : ?. 94 rod/s

Number of weights: 85

Cal ibrotiorifoct or: 3.536 m/Vs2

Si gn

vol.

t

1. 4790 00 m *

Period of peaks. I.. l45e 01 a

Average periods 8.255e 00 s

Ship

: Hr. Ms. Tydoman

Date

march 16th 87

Run :

1810001029

Power spectral. derrni.ty (m2s/rad) 2. Os 00 1.6e 00 i..2a 00 8. Os-01, 4. Da-Ol 0. Os 00

0

0

a

K

Argular Frecuoncy (rod/s)

IDELFT SH1PHYURUMECHANICS L.A8ORA TORY

0

0

N

JDE:LFT SHIPHYOROMECH4NIt5 LA9iA TORY

Ship : Hr.Ms. Tydamdn

Data :, march 18th 87

Run 181 0301100 Signals wàveheigth

Statistical moments of spectrum.

Length of run , 30.00 minutas

Sample intervo) : 1.000 s

Filter OMECAIow , 0.35 rod/s

Fl

I ter OMECAhigh: 2. 94 rod/s Numbar OP Weights: 85

CalibrotionfOctori 3.536 m/Vs2 * mul tiply by 2 for waves

* multiply by 2 for waves H 0 - 5.597e-01 M 1 4. 12le-01 M 2 3. 560e-01 H 3 3. 777e-0l M 4 5. 002Q-Ol H 5 - 8. 017e-01 1. 6e 00

l..2s O0._

Sign. vol. , 1.605e 00 m

Period of peak: 1. 145e 01 s Average period: 8. 456e 00 s Statistical momQnte of spectrum. H Q a 6 436e-0l

9.0-D1

?4 I 4. 784e-01 M 2 a 4 169a-D1 H 3 a 4 455Q-QJ 4. Os-Ol _{M 4 a 5 959-Q'j} 14 5 9. 581 o-01

Length of run

t

29.00 mInutes 0. Co 00

C

0

0

_{Sample interval} : 1.000 s

a

0

a

-4

a

Fl 1 tar 0MECA1ow , 0. 30 rod/s

ffi1.1

fc,-Angular frequency (rod/e) . ...

OHEGAhIgh s 2. 94 rod/s Number of weights: 85

ColibrationPactor: 10. 000 m/VS2 Sign. vol. 1. 495e 00 m * Period of peaks 1. 145e 01 0 Average periods 8.5190 00 s.

Power spectrai dansity Ship Hr.Ms. Tydoman

(m2s/rad) Data s march 18th 87

2. Os 00 Run : 1811001129

Power epectrai densi t.y (m2s/rad) 2.Oe 00 1.6e 00 1.2e 00 8. Os-Ol 4. Os-Ui 0. Os 00

Angular Frequency Cradle)

DEL FT SHIpHYDROMECHANICS LABORA TORY

1

0

N

DELFT SH1PHYDROMEC'HANICS LABURA FURY

33

Callbrat'ionFoctor: 3.536 ,m/Vs2 * multiply by 2 for waves

Ship 1 Hr.Ms, Tydemori Date : march 18th 87

Run : 1811301200

Signal: waveheigth

Statistical moments of spectrum.

Length of run a 30. 00 minutes Sample interval : 1.000 a

Filter OMEGAlow

:

0.35

rad/e FIl.ter 0MW/thigh: 2 '94 rod/s Number of weights. 85

Cal ibroti.on factor: ,:l.WnVVs2 * mtltiply by 2 for waves

14 0 6. 277a-01 H I 4 709é-01 14

2

4 1'21e-01 14 3 - 4 4'O5e-01 M 4 5. 845e-01 M 5 - 9. 339e-01

1.6e 00 Sign. vol. . . 1. 500e DO m *

Period. of peak. 1.. 145e 01 s Average per lod. 8 4049 00 s Statist i'ca1 moments of spectrum. H 0 5. 624e-01 1.2e 00 8. Os-Ol H 1 4.2059-01 H 2 3. 698e-01 M 3 - 4 002s-01 4. Ce-Ui M 4' 5. 394e-01 14 5 8. 761e-01

0. Ce 00 'Length of run , 30.00 minutes

0

0

0

_{Sample interval} . 1. 000 s

.0

0

0

-4 N

d

Filter OMECAlow : 0.35 rod/s

Fl 1 tsr CMECAhI9h , 2. 94 rod/s Angular frequency (rod/s)

Number of weights, 85

Sign. vol. 1. 5859 00 m * Period of peak: 1. 145e 01 s Average period. 8. 375a 00 a

0

0

0

0

0

-4

Power spectral

density

Ship

t Hr. Ms. Tydeman

(m2s/rad) Date : march 18th 87

2. Os 00 Run : 181 1241 154

Power spectral densI ty Cm 2 s/rod) 2. Os 00 1. 6s 00 1. 2o 00 8.Oe-01 4.Oe-Ol 0.Os 00

a

a

d

[DELFT SHIPHYOROMECHANICS L4BORA WhY

Power spectral densi ty (m2s/rad) 2.OQ 00 0. Os 00.

a

a

a

a

a

-4

Angular frequency (rod/s)

0

0

rj

[OELFT SHIPHYDROMECHANICS LABBRtI TORY.

Ship S

HrMs. Tydeman

Cots s march 18th 87

Run , 1812001230

Signalt waveheigth

Statistical moments of spGctrum.

Length

of

run Sample interval i

Filter OMECA1ow Fil:ter OMEGAh1:gh : Number of wei:ghts:.

Call ibrat ion fact ora

multiply by 2 for Waves

Ship Date : Run s Signo Is Hr. Me. Tydemon march 18th 87 1812301259 wavohalgth Sign. vol. s

1.5315 0Cm *

Period

of

peaks 9. 692e 00 s Average periods 8. 269e 00

Statisti'col moments of spectrum.

Length

of run

Somple interval Filter OMEGAIow Number of weights: 85 30. 00 minutes 1.000 9 0. 35 rod/s 2 94 rod/s 85

1. 741' m/Vs2

29 00 minuts

1. 000 S 0. 30 rod/s Angular frequency (rod/s

Filter 0ME4high : 2.94 rod/s

Cal ibrOtionfact or: I'D. 000 m/Vs2 * multiply by 2 for waves

Sign. vol. 1. 576e 00 m * Pariod

of peak:

1. 145

01 a

Averog2 period: 8. 606e 00 9

M 0 6. 212é-0l M 1 4. 534 a-Cl M 2 3. 925e-01 H 3 - 4. 247s-01 M 4 5. .789e-01 M 5 9 5l'Oe-Ol M 0 - 5. 657e-01 H 1 4. 450e-01 M 2 - 3. 936e-0i

M3 =

4. 252a-01 H 4 -. 5. 695e-0 1

MS

9. 146a-01 '.Be 00.._.. 1.2a 00.... 8 Os-Ui 4. Os-UI

a

0

-I

5.Oa 00 4. Oe 00 3.09 00 2. Da 00 1.09 00 0.Oe DO

a

a

d'

Angular frequency (rad/s)

Power spectral density (m 2s/rod)

JIJELFT SHIPH'YLROMECHANICS LABBRA' TORY

0. N

Angu1'ar frequency (rod/e)

Number of weights. 85

-.

CaljbatjoPactors

536

m/Vs2

* muJtfo1)' by 2 For waves

J;DELFT

SHIPHYDROMECHANICS LA9ORA. TORY

35

Fil'tar OMECA'hlgh a 2.94' rod/s Number of weights: 65

Ca1;'i1brationfactars 10. 000 m/Vs2 * mul t1ipiy by 2' for waves'

Ship a Hr. Ms. Tydeman

Date 'i march .18th 87

Run' 1813051335 S'kgnali Wavehe i:gt'h

Sign. vol'. a 1. '653e 00 m *

Period of peaks ii 1.45e 01 e Average peri:ods 6. 9Be 00 e Stat 1st ical moments of spectrum.

14 .0 = 6. 829e-01 M 1 4. 795e-0'l M 2 3. 968e-01 H 3 4. 185e-'b1 14. 4 .5. 64 7e-0 1 (4 5 9. 376e-0I

Length of run a' 3D.'00 minutes

Sample interval a 1. 000 s

Filter 0MEGA1ow 'a 0.35 rod/s

Filter 0MEGA'high ' 2.94 rod/s 1. 6e 00

1.2e D0...__

Sign., va). a .1. 560e 00 m Period

of

peaks 1. 145e 01 s Average pori'ods. 8. 608e 00 s Statistical, moments of spectrum.

14 0 6. 080e-01 8. 0-0i M 1 4. 4,39a-D1 H 2 3. Bi9e-01 M 3 4. 095e-0'l 4. 0e0l' _. . -M. 4 5. 550e-01 M 5 9. 105e-01

0. Oe CC

1/

Length

of'

run a 29. 00 minutes

a

_{Sampl!o interval}

a

0

a 1. 000 s

ci eJ Filter OMECAIow a 0.30 rod/s

Power spectral donsi'ty' Ship : Hr.Ms. Tydeman

(m 2s/rad) Dote s march 18th 87

2.Oa 00 Run : i8i3001'329

Power pectra1 density (m2s/rad) 2. Os 00 i.6s 00. l.2e 00 8. Os-Ui 4. Os-Ui

0

0

N

1DELFT SHIPHYDROMECHANICS LABORA TORY

36 Ship Hr.Ms. Tydemon Oats a march 18th 87 Run a 1816461718 Signal: wavshsigth Sign. vol. , 1.3940 00 rn * Period of peak: 1. 1450 01 e Average period: 8.272e 00 s

Statistical momGnts of spectrum. M 0 4. 860e-01

Length. of run a 30.00 minutes

Sample interval : 1.000 e

Filter OMEGAJow :. 0.35 rod/s Fi I tar OMEGAhigh 2. 94 rod/s Number of weIghts: 85

Gal ibrat ion factor, 3.536 rn/Vs 2 * multiply by 2 for waves M 1 3.692e-01 M 2 3. 303e-01 M 3 3 637e -0 1 M 4 4. 947e-01 H 5 7. 992e-01 0.Oe 00

a

a

a

d

JDELFT SHIPHYOROMECHANICS

LABORA TORY

Power spectral density Cm 2s/rad) 2. Os 00 1.. 6e 00 l.2e 00 .0. Os-Ol 4.'Oe-Ol 0. 00 00

0

a

a

Ar,g.ilor 'frequency (rad/s)

0

a

eJ

OELFT SHIPHYBROMECHANICS LABORA TORY

Ship : Hr.Ms. Tydemari Date : march 19th 87 Run : 1912131243 Signal: waveho'igth LaIi9t'h. of run : Sample interval Filter OMEGAlow :Fiitsr QMEC,high : Number of weights: Cal ibratlonfactor:

* multiply by 2 for waves

Sign. vol. : 1. 166a '00 m * -Period of peak: 1. 050e 01 s Average periodi 8. 345e' 00 s

Statistical rnomnts of spectrum.

MO

:3. 402e-O'l 141 2. 561 e-01 142 2. 362e-01 143 = 2. 812e-01 144 4. 243a-01

M5

7. '576s-01 30. .00.' minutes 1.000 e 0. 35 rod/s 2. 94 'rod/s 85 3. 536' rn/Vs 2 Power spectro density

(m2s/rod) 2.Oe 00 Ship .1 Hr. Ms1 Tydemon Date .s march 19th 97 Run 1912121241

l..6e 00_

Siria1: waveheigth Sign. vol.. : 1. l64Q 00

in *

Period. of peak: 1. '050o 01 S

l.2e 00_

Average per Lad, 8. 344a 00 s Statistical moments of spectrum.

MO

3. 387e-O'l 8.Ue-01 ,,1 1' 2 550e-Ol M 2 2. 340a-Oi 14 3 2. 739e-D1 4.Oe-0l ₁₄₄ 4. 023e-01 M. 5 6. 955e-01

0.Oa 00 Length of run I 29. 00 minutes

a

a

a

_{Sample interval 1.000 s}

a

a

a

d

N

FL I tsr DI4ECA low' 1, 0. 30 rod/s

Angular Frequency (rod(s) Filter OMEGAh'Lgh : 2. 94 rod/s Number of weights, 85

Cal ibi-a,ti.onfactor: '10.000 rn/Vs 2 * multiply by 2 for waves

U.Ce 3D

I)

.

Angular Frequency (rad/s)

JOELFT SHIPH.YDRUMEGHANICS LABORA TORY

Power spectral density (m2s/rad) 2. Os 00 - l.6s-OO 1.2s 00 8. Os-Cl 4. Os-UI 'O Os 00

0

'O .0

a

-I

DEL FT SHiPHYDROMEHANICS

LA8ORA TORY

38

Stat ietical moments of spectrum. M 0 4. 253e.-Ol

M 1 3. 1 IQo-Ol 14 2 2 734e-Ol

Length, of run. a 29. 00 minutes Sample interval : 1.000 s

F! I tar OMECAIow a 0. 30 rod/s

Filter OMECAh19h a 2.94 rod/S Number oF weIghts: 85

Cal Jbrotiori'factora 10. 000 rn/Vs 2 * multiply by 2 for waves

Ship a Hr.Ms. TydemOn

Data a march 19th 87

Rut, a 1912301300

Signal: wavaheigth

Statistical moments of spectrum. M 0 4. 030e-O'l M 1 = 2. 931e-0i 14 2 2..526e-Ol M 3' 2. 71Oe_01 M 4 3. 605é-0l M .5 5 628a-01!

Length of run a 30. 00 minutes

0

Sample interval : 1.000 s

N _{Filter OMEGA low a 0. 35. rod/s} Angular frequency Cradle) Filter OMECAhIgh a 2. 94 rod/s

Number of weights: 85.

- . . . Colibrdtionfactor, l.74I m/Vs2

* multiply by 2 for waves M 3 3. 077e-0l

14 4 4. 430e-0l

14 5 7. 665e-01

Sign. val. a 1. 270e 00 m

Period of peak: 1. 145 01. e

Average period: 9. 639e 00' s

1.6e 00_.

Sign. vol. a I. 304e .00' m *

Period of

pock:

1. 050a 01 s Average period: 8. 593e 00 s 1.2e O0_....,.

Power spectral density Ship a Hr.Ms. Tydaman

(m 2s/rod) Date a march l9th 87

2. Oo 00 Run a 1912301259

l.6o 00 1. 2o 00 8. Os-UI 4. Os-UI 0.00 00 ci

a

a

ci

a

-4 0, N

DELFI SHJPHYOROMECHANIcS LA DORA TORY

Power spectral density Ship : Hr.Ms. Tydeman

(m2s/rod) . 'Date , march p9th 87

2. Os. .00 Run : 1913001330

'Signa'i!: woveheigth

Sign. va1. :.. 1. 220o 00 m *

Period Of peak: 1. i45e 01 a Av9rage periods 9. 233e. 00 a

Statistical momenta of spectrum. H 0 3. 720e-01' .M I . 2. 839e-Oi M 2 2. .603e-O'l H 3 2. 975e-01' H 4 ' 4.179e-0'l H 5 6. 960e-01.

Length of run : 30.00 mjnijtss.

Sample interval a 1. 000 a

Filter OMEGAIow a 0.35 rod/a

Ff1 tsr OMECAhIgh :- 2.94 rod/s Angular frequency Cradle)

Number of weights: 85

JOEL

FT SHIPHYDROMEGHANICS LABURA TORY

multiply by 2. For waves

Calibratiosifactor: 1. 741 m/Vs2 multiply by 2 for waves

1. 6e 00

-l.2e CO

Sign. vol. :. 1.265e 00 m

Period of peakr 1, 145a 01 s Averoge period: 6. 313e 00

Statistical moments of spectrum. M 0 3.999a-01 8. Oe-O,1 M 1 = 3.023e-bl H 2 2. 786e-01 M 3 = 3. 289e-01' 4. Os-Ol _{M 4 4. 9J5e-0 1} M 5 6., 758o-0i

Length of run E 29., 00 minutes. 0. Os 00

ci

a

ci, _{SompLe intervol}

:.

0

0

0

ci ..: Ff1 tsr OMEGA low : .

1. 000 s 0 30 rod/a P1.1 ter OMECAhigh 2 94 rod/s Angular frequency Cradle)

Number of weights: .85 -.

Caiibrotionfoctors 1.0.000 rn/Vs2

POWQr spectral density

Ship

: Hr.Ms. Tydeman

(m2e/rad) Dote : march 19th 67

2.Oo 00 R,n : 1913001329

Power spectral density (m2s/rcid) l.Oe 00 B. Ow-01 6. Oe-01 4. Oe-0'l 2. Oe-0'l 0. Qo 00

'0

Anguiar Frequency (rad/s)

0

CD

LELFT SHIPHYDROMEcHANICS LA90R4 TORY'

DEL FT sHIPHmROMECHAwICs L A BOR,4. TORY

Ship : Hr.Ms. Tydeman

Data : march 19th 87

Run , 1913301359

Signal: wovoha £ g,th

Sligri. vol. , 1. 1910 00 rn *

'PeriOd of peak:' 9. 692e 00 a Average period: 7. 863e 00 a Statistical moments of spectrum.

MS

8.896a-0i

Length of run : 29. 00 minutes

Sample interval : 1. 000. s

Filter OMEGA1ow

: 030 rod/s

Filter '0(iEGAhi9t, : 2. 94 rad/s Number of weights, 85

Colfbrati'onfoctor, 10.000 m/Vs2 multiply by 2 for Waves

* multiply by 2 for waves

Power spectral density Ship : ?Ir.Hs. Tydaman

(m 2s/rad) Dote : march 19th 87

2. Oe :00 Run 1913301400

l.6e 00

Signal: wavehaigth

'Sign. vol. , .1. 256o 00 m * Period' of peak: 1. 1459 01 a Average period: 8.074's 00 8 I.2s 00

'Statistical moments of spectrum.

M' 0 3. 942a-01 8.. 09-01 H 1 3.067e-01 M 2 2. 916e-0i (4 3 - 3. '468a-01 4. Os-Ol _{M 4 5. 1 iCe-Ui} M 5 = 8.661e-01

0.Oe 00 Length of run' , 30.00 minutes

0

0

0

0.

CD

0

Sample intrva1

: 1., 000 a

-I

N

0

Filter OMECAlow s 0.35 rod/s

Angular frequency (rad/s) Filter OMECAhigh i 2.94 rod/s

Number of

'waihts: 85 Cali:brotionfactors L 74:1 rn/Vs'2 M 0 - 3. 488a-01 (4 1 ' 2. Z87e-01

M2" 2.732e-D1

(4 3 3. 371 a-UI (4 4 5. 090e-01

Power spoctral density. (m2s/rod) l.0e DO 8. Oe-01 6. Os-Ol 4. Os-UI 2. Oe-0l 0. 00'.

0'

0

a

Angular Frequency Cradle)

I DELFT SHiPHYDROMECHANIi.S LABOR/I TORY

JDEL.FT

SHIPHYOROMECHANICS LABOR/I TORY

41

multiply by 2 for waves

Ship S Hr.Ms. T.demor,

Dote s march 19th 87

Run : 19143b1455

Signal: waveheigth

Sign.. vol. : 1. 1'65e 00 m

Period of peak. lo .1450 01 S

A'verag9 perioda 7. 7810 00 a Statist i:col moments Of spectrum. M 0' 3. 390e-01' 14 1 2. 738e-01 14 2 2. 706e-0l M' 3 3. 372e-0l H. 4 5. 167s-01 P4 .5 9. 190e-01

Length of run : 25.00 minutes

Sample fr.terval 1.000 a

o

0

0

Filter OMEGA1:ow a

Filter .0MECAhlgh a Number of .weightsa 0. 35 rod/s 2. 94 rOd/s 65 Col.ibrat1onfactOr, 1. 741 rn/Ve2. * multiply by 2 for waves

Power spectral density Ship : Hr.Ms. Tydeman

(m2s/rad) Date march 19th 87

2. Ce 00 Run : 1914001430

Signal. waveheig.th

I. 6e 00 Sign. vol. : 1. 255e 00 m *

Period of pmak: 1, 145e 01 a AverO9e period:. 6. 019e 00 a 1. 2e 00

Statistical moments of spectrum.

H 0 =3.936e-01

8. De-Ol. H 1 3. 096e.-0i P4 2 2. 970e-0l H 3 3.624a-01 4. Os-Ol _{H 4 5 449e-0i} H 5 '9. 505e-01

00 Length of run , 30. 00 minutes

0. Ce.

0

a

0

Sample interval a

1.000

a

P

0

0

a

N .Fil tsr OMEGA 1ow .: 0. 35 rod/s

Filter OMECAhigh : 2.94 rod/s Angular Frequency Crad/e)

Number of weights: 85