Ro-Ro Safety

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SECTIONS:

1 . INTRODUCTION

2. CALCULATION METHOD

3. PREVIOUS WORK

4. CURRENT WORK PROGRAMME

5. RESULTS 6. ALTERNATIVE POLISH ' a p ' 7. DISCUSSION OF RESULTS PAGE 1 2 3 4 - 5 6 - 8 0 PROPOSALS 8 1 8 2 - 83

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3 1 / 2 2 A n n e x 2 ) , t o a s a m p l e o f e x i s t i n g RO-RO v e s s e l s . A l t e r n a t i v e c o n f i g u r a t i o n s t o i m p r o v e t h e A t t a i n e d I n d e x h a v e b e e n i n v e s t i g a t e d w h e r e t h e o r i g i n a l d e s i g n d o e s n o t m e e t t h e R e q u i r e d I n d e x . T a s k 1 a d d r e s s e s t h e q u e s t i o n o f p o s s i b l e m e t h o d s o f l i m i t i n g t h e d e t r i m e n t a l e f f e c t s o f f r e e w a t e r o n v e h i c l e d e c k s . As a l i n k w i t h t h i s a n a l y s i s a t y p i c a l f o r m o f s u b d i v i s i o n on t h e v e h i c l e d e c k h a s b e e n i n c l u d e d i n t h e a n a l y s i s . F o r c e r t a i n o f t h e v e s s e l s d e s c r i b e d i n t h i s r e p o r t damage s t a b i l i t y c a l c u l a t i o n s w e r e a l r e a d y a v a i l a b l e . W h i l s t t h e s e may n o t h a v e b e e n r u n w i t h t h e same c r i t e r i a as d e s c r i b e d i n SLF 3 1 / 2 2 t h e r e s u l t s h a v e b e e n u s e d i n t h e p r e p a r a t i o n o f t h e r e p o r t .

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2. CALCULATION METHOD The c a l c u l a t i o n m e t h o d c u r r e n t l y p r o p o s e d i n v o l v e s c a l c u l a t i n g a R e q u i r e d S u b d i v i s i o n I n d e x R f o r a n y v e s s e l . T h i s , a s c u r r e n t l y p r o p o s e d , i s a s i m p l e f o r m u l a d e p e n d e n t o n l y u p o n t h e l e n g t h o f t h e v e s s e l . F o l l o w i n g a n e x a m i n a t i o n o f t h e w a t e r t i g h t c o m p a r t m e n t a t i o n a n d damage s t a b i l i t y r e s u l t s a n A t t a i n e d S u b d i v i s i o n I n d e x A i s c a l c u l a t e d .

For a v e s s e l to be a c c e p t a b l e A must be g r e a t e r than or equal to R.

M o s t o f t h e w o r k a t ' IMO i n r e c e n t y e a r s h a s b e e n d i r e c t e d t o w a r d s t h e m e t h o d o f c a l c u l a t i n g t h e A t t a i n e d I n d e x A. T h e r e a r e c u r r e n t l y a l t e r n a t i v e p r o p o s a l s f r o m v a r i o u s n a t i o n s . H o w e v e r , a s o u t l i n e d i n s e c t i o n 7 t h e s e d o n o t h a v e a s i g n i f i c a n t e f f e c t u p o n t h e f i n a l a n s w e r . C u r r e n t w o r k i s a l s o d i r e c t e d t o w a r d s t h e d e f i n i t i o n o f t h e R e q u i r e d S u b d i v i s i o n I n d e x - R. R i s c u r r e n t l y d e f i n e d a s R = 1 - 1 0 0 0 1500 + 4 L s I t i s t h e l e v e l a t w h i c h t h i s i n d e x R i s s e t w h i c h w i l l d e t e r m i n e w h e t h e r d e s i g n s o f a n y c a r g o v e s s e l s s i m i l a r t o t h o s e c u r r e n t l y b e i n g c o n s t r u c t e d c a n m e e t t h e new s t a n d a r d , a n d t h e r e f o r e c o n t i n u e t o b e b u i l t when t h e r e g u l a t i o n s a r e i n f o r c e . I f t h i s i n d e x i s s e t t o o h i g h i t may n o t b e p o s s i b l e t o d e s i g n p r a c t i c a b l e f r e i g h t RO-RO v e s s e l s .

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3. PREVIOUS WORK P r e v i o u s w o r k on t h e e f f e c t o f t h e p r o p o s e d c r i t e r i a on d r y c a r g o s h i p s was s u b m i t t e d t o IMO by t h e U n i t e d K i n g d o m i n an i n f o r m a t i o n p a p e r , SLF 3 2 / 3 / 7 . A l t h o u g h t h e n u m b e r o f v e s s e l s i n t h e UK i n f o r m a t i o n p a p e r r e p r e s e n t s a s m a l l s a m p l e ( e i g h t s h i p s ) t h e r e s u l t s a r e c o n s i d e r e d i l l u s t r a t i v e f o r t y p i c a l v e s s e l s o f t h e t y p e c o n c e r n e d a n d e x p e r i e n c e has i n d i c a t e d t h a t s i m i l a r r e s u l t s w o u l d be o b t a i n e d i f t h e s a m p l e w e r e e x t e n d e d . The c o n c l u s i o n s d r a w n f r o m t h e r e s u l t s o f t h i s s t u d y w e r e as f o U o w s : -V e s s e l s b e l o w t h e p r o p o s e d l i m i t o f a p p l i c a t i o n o f 75m c a n n o t p r a c t i c a l l y be d e s i g n e d t o m e e t t h e p r o p o s e d s t a n d a r d . M o d e r n c o n v e n t i o n a l c a r g o v e s s e l s a r e g e n e r a l l y a c c e p t a b l e p r o v i d e d t h a t c a r e i s t a k e n o v e r i n t e r n a l g e o m e t r y . The t w o RO-RO v e s s e l s i n t h e s a m p l e f a i l . I t i s t o f u r t h e r a s c e r t a i n t h e e f f e c t o f t h e p r o p o s e d s t a n d a r d on RO-RO v e s s e l s t h a t t h e w o r k d e s c r i b e d i n t h i s r e p o r t has b e e n c a r r i e d o u t .

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The c u r r e n t w o r k p r o g r a m m e c o v e r s t h e f o l l o w i n g v e s s e l s . T y p e S h i p 1 S h i p 2 S h i p 3 S h i p 4 S h i p 5 S h i p 6 S h o r t Sea C a r g o RO-RO S h o r t Sea C a r g o RO-RO S h o r t Sea C a r g o RO-RO ( m i x e d v e h i c l e a n d c o n t a i n e r ) S h o r t S e a C a r g o RO-RO

Deep Sea C a r g o RO-RO

S h o r t Sea P a s s e n g e r / C a r g o RO-RO ( l o w d e n s i t y p a s s e n g e r , h i g h f r e i g h t c a p a c i t y ) The s h i p s c h o s e n a r e p u r e l y i l l u s t r a t i v e a n d u s e d a s a c a l c u l a t i o n b a s i s . T h e s a m p l e , a l t h o u g h s m a l l , n e v e r t h e l e s s c o v e r s t h e p r i n c i p a l t y p e s o f v e s s e l s o p e r a t e d b y N o r t h E u r o p e a n o p e r a t o r s . E a c h c a r g o v e s s e l h a s b e e n e x a m i n e d 'as b u i l t ' a g a i n s t t h e p r o p o s e d r e g u l a t i o n s . S h o u l d t h e v e s s e l f a i l a t t e m p t s h a v e b e e n made t o i m p r o v e t h e r e s u l t s o b t a i n e d .

The f o l l o w i n g a s s u m p t i o n s w e r e made i n t h e damage s t a b i l i t y c a l c u l a t i o n s : = C o n s t a n t GM f o r L o a d e d a n d L i g h t c a s e s f o r a l l v a r i a t i o n s i n s h i p d i m e n s i o n s a n d i n t e r n a l s u b d i v i s i o n c h a n g e s . - I n s t a n t a n e o u s f l o o d i n g , i . e . n o s t a g e f l o o d i n g c o n s i d e r e d . = GZ c u r v e s t a k e n up t o U p p e r D e c k , I . e . o n e d e c k a b o v e b u l k h e a d d e c k . W a t e r p e r m i t t e d t o f l o o d o n t o v e h i c l e d e c k . V e r t i c a l e x t e n t o f damage f r o m k e e l u p w a r d s w i t h o u t l i m i t = L o n g i t u d i n a l e x t e n t o f damage f u l l l e n g t h o f c o m p a r t m e n t . Damage a s s u m e d t o c e n t r e l i n e o f s h i p .

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a c h i e v e d b y i m p r o v e d s u b d i v i s i o n a n d / o r damage s t a b i l i t y . T h u s i m p r o v e m e n t s m u s t t h e r e f o r e be o b t a i n e d b y a c o m b i n a t i o n o f r e d u c i n g t h e a m o u n t o f f l o o d w a t e r e n t e r i n g t h e v e s s e l i m p r o v i n g t h e v e s s e l s i n h e r e n t s t a b i l i t y c h a r a c t e r i s t i c s F o r e a c h v e s s e l t h e r e f o r e t h e f o l l o w i n g p r o g r a m was f o l l o w e d a f t e r t h e 'as b u i l t ' e x a m i n a t i o n I m p r o v e i n t e r n a l s u b d i v i s i o n b e l o w t h e e x i s t i n g b u l k h e a d d e c k . I m p r o v e i n t a c t f r e e b o a r d Add p a r t i a l l o n g i t u d i n a l / t r a n s v e r s e s u b d i v i s i o n on e x i s t i n g b u l k h e a d d e c k . I m p r o v i n g t h e i n t e r n a l s u b d i v i s i o n b e l o w t h e b u l k h e a d d e c k i s t h e l e a s t d i s r u p t i v e p r o p o s a l on t h e v e s s e l ' s o p e r a t i o n . I t i s a p p r e c i a t e d t h a t i m p r o v i n g t h e f r e e b o a r d means a r e d u c t i o n i n t h e i n t a c t s t a b i l i t y o f t h e v e s s e l . To o v e r c o m e t h i s i t w o u l d be n e c e s s a r y t o i m p r o v e t h e i n h e r e n t i n t a c t s t a b i l i t y ( e . g b y i n c r e a s i n g t h e b e a m ) . T h i s h a s n o t b e e n c o v e r e d i n t h i s r e p o r t a n d t h e f r e e b o a r d has b e e n s o m e w h a t a r t i f i c i a l l y i n c r e a s e d . I t m u s t h o w e v e r , be a p p r e c i a t e d t h a t t h i s w i l l h a v e a d e t r i m e n t a l e f f e c t on t h e p a y l o a d o f a n y v e s s e l . The l a y o u t o f i n t a c t s u b d i v i s i o n o n t h e b u l k h e a d d e c k i s a d d r e s s e d i n T a s k 1 a n d c a n o b v i o u s l y be d e s i g n e d f o r a p a r t i c u l a r c a s e . H o w e v e r , f o r c o m p a r i s o n p u r p o s e s , a ' s t a n d a r d ' s u b d i v i s i o n h a s b e e n a p p l i e d t o e a c h v e s s e l . A d e t a i l e d d e s c r i p t i o n o f t h e m o d i f i c a t i o n s t o e a c h v e s e l i s d e s c r i b e d i n t h e i n d i v i d u a l s e c t i o n s .

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The r e s u l t s f o r e a c h i n d i v i d u a l v e s s e l , t o g e t h e r w i t h a p p l i c a b l e c o m m e n t s a r e g i v e n o v e r l e a f .

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g i v e n i n t h e T a b l e o v e r l e a f . The l a y o u t o f t h e v e s s e l i s as t h e a t t a c h e d F i g 1.0 D i s c u s s i o n o f R e s u l t s : T a b l e s 1.0 t o 1.6 s u m m a r i s e s t h e r e s u l t s . The R e q u i r e d S u b d i v i s i o n I n d e x i s 0 . 5 1 . As b u i l t t h e v e s s e l a t t a i n s an i n d e x o f o n l y 0 . 0 4 , t h e u n p r o t e c t e d l o w e r h o l d w h i c h e x t e n d s o v e r much o f t h e v e s s e l ' s l e n g t h a f f e c t i n g t h e r e s u l t s . The i n c o r p o r a t i o n o f t h e t r a n s v e r s e s u b d i v i s i o n b e l o w t h e b u l k h e a d d e c k , as i n d i c a t e d i n F i g u r e 1 . 1 , i m p r o v e s t h e A t t a i n e d I n d e x . H o w e v e r t h i s c a n n o t be r a i s e d a b o v e 0.47 w h i l s t m a i n t a i n i n g p r a c t i c a l s u b d i v i s i o n . F i g u r e 1.4 i l l u s t r a t e s t h a t i f e x t r a s u b d i v i s i o n i s p r o v i d e d b e l o w t h e b u l k h e a d d e c k t o g e t h e r w i t h an i n c r e a s e d f r e e b o a r d o f 3.0m t h e A t t a i n e d I n d e x r e a c h e s 0 . 6 8 , g r e a t e r t h a n t h e r e q u i r e d v a l u e . F i g u r e 1.5 a n d 1.6 i l l u s t r a t e v a r i o u s f o r m s o f s u b d i v i s i o n on t h e v e h i c l e d e c k . T h e A t t a i n e d I n d e x i n t h i s i n s t a n c e r e a c h e s s a t i s f a c t o r y l e v e l s . C o n c l u s i o n : The v e s s e l as c o n s t r u c t e d d o e s n o t m e e t t h e r e q u i r e m e n t s , p r i n c i p a l l y b e c a u s e o f t h e u n p r o t e c t e d l o w e r h o l d . The m o d i f i c a t i o n s p r o p o s e d ( b r i n g i n g t h e v e s s e l c l o s e r t o p a s s e n g e r s h i p s t a n d a r d ) make c o m p l i a n c e p o s s i b l e . I f f r e e b o a r d a l o n e i s u s e d t o i m p r o v e t h e r e s u l t s a s u b s t a n t i a l i n c r e a s e i n f r e e b o a r d i s r e q u i r e d . A c o m b i n a t i o n o f t h e m e a s u r e s i s n e c e s s a r y a n d w i l l r e s u l t i n a v e s s e l w i t h a s m a l l e r f r e i g h t c a p a c i t y .

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PRINCIPAL DIMENSIONS OF SHIP HO.I

LBP m

1 2 9 . 6 2

L s m

1 3 4 . 0 2

BREADTH m

1 9 . 0

DEPTH (BHD DK) m

6 . 7 5

SUMMER LOAD DRAFT m

5 . 9 8

LOAD D I S P U C E M E N T t o n n e s

10, 100

CONDITIONS:-CONDITION

LOADED

LIGHT

DRAFT

m

5 . 9 8 4 . 1 0

TRIM ( A s s u m e d f o r c a l c n . )

m

0 0

ACTUAL LOADED TRIM

m

0 0

K M

m

8 . 9 4 9 . 94

K G Fluid

^

m

8 . 4 4 6 . 8 5

GM Fluid ( G M R )

m

0 . 50 3 . 0 9

CARGO PERMEABILITY

_M

_70% _70%

D A M A G E C R I T E R I A ;

-D A M A G E AiNGLE OF H E E L 2 5 ' '

MINIMUM G Z < 0 . 1 0 m

R A N G E OF S T A B I L I T Y < 2 0 °

FAILS ON CRITERIA

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1

i d LR.

COMPARD/IENTS

ONE COMPART^.IENT s T

ONE COMPARTMENT S2

1

2

3

4

5

1 ₀

₀

1

0

0 REQUIRED SUBDIVISION INDEX R - 0.51

ATTAINED SUBDP/lSiON INDEX A = 0 . 0 4

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COMPT. a p « a p s Wl 0.45é>l 0 . 0 1 9 8 l.OOOO 0 . 0 0 9 0 W2 0 . 5 6 2 4 0 . 0 0 3 3 0 . 5 0 0 0 0 . 0 0 0 9 C 3 0 . 7 7 0 7 0 . 1 2 6 4 0 . 0 0 0 0 0 . 0 0 0 0 C4 1 . 1 3 2 2 0 . 4 9 0 7 0 . 0 0 0 0 O.OOOO C 5 1 . 2 0 0 0 0 . 0 2 7 5 0.50OO 0 . 0 1 6 5 C6 1 . 2 0 0 0 0 . 0 0 9 6 1.0000 0 . 0 1 1 5 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.- 0 . 0 3 7 9 N o t « « i • - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y *•• - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d R E Q U I R E D S U B D I V I S I O N INDEX = 0 . 5 0 8 9 A T T A I N E D S U B D I V I S I O N INDEX = 0 . 0 3 7 9

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SHIP 1.1 - MOOIRED ^ I P ( E X T R A SUBDIVISION B a O W D E C X )

TAWCS LH LR. LDW HOLD JiJIOHaLD! UMX HOU) LD*ER HOLD

s

TAWCS 1 ^ 1 1 1 1

s

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1

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1

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LOIER HOLD \ L £ M S HCLD; U M S HOLD

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1 1 1 ^~"-~~-v, 1 ' 1 1 1 1 1 1 1 ^ ^ ^ ^ ^ — n 1 ! , — = ^ r : - - j - — TANK K P

COMPARTI/IENTS

1 2 3

6

7 8 9 1 0

; COMPART)/iENT SI

: COMPARTIMENT S 2

I

COMPARTMENTS SI

i COMPARTMENTS S2

EE COMPARTI^ENTS S1

EE COMPART^iENTS S 2

0 O O

1 1 1

O O

O

O O O

1

1 0 0 0 0 0 0

1

1 0 0 0 O 0 0 O O •

1

O 1 (SHIP

REQUIRED SUBDIVISION INDEX R = 0 . 5 1

A H A I N E D SUBDIVISION INDEX A = 0 . 4 7

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COMPT. a p s a p s C l 0.45Ó1 I'J . 0 1 9 8 0. 5 0 0 0 0. 0 0 4 5 W2 0 . 5 6 2 4 0 . 0 0 3 3 0. 5 0 0 0 I j . 0 0 0 9 C31 0 . 6 8 2 9 0 . 0 3 0 3 0. 5 0 0 0 0. 0 1 0 4 C 3 2 0.841 1 0 . 0 4 5 5 0. 5 0 0 0 0. 0 1 9 1 C 4 l I . 0 4 5 9 0 . 0 7 6 0 0, 5 0 0 0 0. 0 3 9 7 C 4 2 1.1907 0 . 0 6 2 2 0. 5 0 0 0 0. 0371 0 4 3 1.2000 0 . 0 9 0 6 0. 5 0 0 0 0. 0 5 4 4 0 4 4 1.2000 0 . 0 3 7 9 0. 5 0 0 0 0. 0 2 2 7 0 5 1.2000 0 . 0 2 7 5 0. 5 0 0 0 0. 0 1 6 5 O 6 1.2000 0 . 0 0 9 6 1. OOOO 0. 0 1 1 5

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0 . 2 1 6 8

ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPARTMENTS

COMFT. a p s a p s C l /W2 0 . 5 0 6 3 0. 0 0 4 5 0. 5 0 0 0 0. 0 0 1 1 W2/C31 0. 6 3 2 8 0. 0 0 5 2 (".). _{5 0 0 0} _0._{0 0 16} 0 3 1 / 0 3 2 0. 7 7 0 7 0. 0 5 0 6 0. 5 0 0 0 0. 0 1 9 5 C 3 2 / C 4 1 0. 9581 0. 0 6 6 9 0 . 5 0 0 0 0. 0 3 2 0 0 4 1 / C 4 2 1. 1074 0. 0 7 2 5 Ü . 5 0 0 0 0. 0 4 0 2 C 4 2 / C 4 3 1. 1907 0. 0 7 4 7 0. 5 0 0 0 0. 0 4 4 5 0 4 3 / 0 4 4 1. 2 0 0 0 0- 0 6 5 5 0. 5 0 0 0 0. 0 3 9 3 0 4 4 / 0 5 1. 2 0 0 0 0. 0 4 5 8 0. 5 0 0 0 0. 0 2 7 5 0 5 / 0 6 1. 2 0 0 0 0. 0 2 5 9 0. 5 0 0 0 0. 0 1 5 6

ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPTS. = 0 . 2 2 1 3

A T T A I N E D S U B D I V I S I O N I N D E X T R I P L E C O M P A R T M E N T S C O M P T . a p s a p s C 1 / W 2 / C 3 1 1 ) . 5 7 6 7 l j 0 0 3 3 0 . 5 ( j i j i j 0 ; W 2 / C 3 1 . / C 3 2 1 ) . 7 2 0 5 0 0 0 2 5 0 . 5 i j 0 < j 0 . 0 < j 0 9 • * C 3 1 / C 3 2 / C 4 1 ) . 8 8 7 7 I j . i j l 3 4 0 . 5 0 0 0 l j 0 i j 6 0 C 3 2 / C 4 1 / C 4 2 I . i : i l 9 6 0 . 0 0 5 2 0 . S O i j i j ' j i j( . ) 2 7 C 4 1 / C 4 2 / C 4 3 . 1 3 2 2 0 . 0 0 8 3 0 . 5 0 0 0 l j 0 0 4 7 C 4 2 / C 4 3 / C 4 4 L . 1 9 i j 7 l j 0 0 3 0 l j . 5 0 0 0 0 _{0 0 1} a C 4 3 / C 4 4 / C 5 . 2 0 0 0 l j . 0 1 6 3 0 . 5 0 0 0 0 0 0 9 8 C 4 4 / C 5 / C 6 . 2 0 c j O 0 . l j 1 4 6 0 . 5 0 0 0 () 0 0 8 8 A T T A I N E D 3 U B D I V I S I O N I N D E X T R I P L E C O M P T S 0 . 0 3 5 5 N o t e s • - L o n q i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d R E Q U I R E D S U B D I V I S I O N I N D E X = 0 . 5 0 8 9

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1.0m I N C R E A S E D F R E E B O A R D )

(NOTE : SHIP 1.2 WITH C S m I N C R E A S E D F R E E B O A R D

NOT RUN IN THIS C A S E )

COMPARTMENTS 1 2 - 3 4 5 6 7 8 9 10

~ (FAJLED w

• COMPARTMENT Sl 0 0 0 0 0 0 0 0 0 1

CRITD^A)

: COMPARTMENT S2 1 1 1 1 1 1 1 1 1 1

) COMPARTIMENTS S1

O

) COMPARTXIENTS S2

1

1 ?EE COMPART)/IENTS SI 0 0 0 0 0 0 0 0 '

^EE COMPARTMENTS S2

1

1 REQUIRED SUBDIVISION INDEX R = 0.51

A H A I N E D SUBDIVISION INDEX A - 0 . 4 7

(16)

SHIP 1.4 - MODIFIED DESIGN ( E X T R A SUBDIVISION B a O W DECK WITH

3 . 0 m INCREASED F R E E B O A R D )

UM3? TRMiR e t a

C0MPART)/1FNTS

ONE COMPARTMENT SI

ONE COMPARTMENT S2

TWO COMPARTMENTS Sl

T ^ O COMPARTI^ENTS S2

THREE COMPART)MENTS Sl

THREE COMPARDMENTS S2

2 3 4

1 1

1

6 7 8 9 10

1

0

1

1 O

O

1

1 o

o

o o

1

1 REQUIRED SUBDIVISION INDEX R = 0.51

A Ï Ï A I N E D SUBDIVISION INDEX A - = 0 . 6 8

(17)

COMPT. a f) 'li C l 0 . 4 5 6 1 0 . 0 1 9 8 l.OOOO 0 . 0 0 9 0 W2 0 . 5 6 2 4 0 . 0 0 3 3 1.OOOO 0.0O19 C31 O . 6 8 2 9 0 . 0 3 0 3 1. «JOOO 0 . 0 2 0 7 0 3 2 0 . 8 4 1 1 0 . 0 4 5 5 l.OOOO 0 . 0 3 8 3 041 l . 0 4 5 9 0 . 0 7 6 0 l.OOOO 0 . 0 7 9 3 0 4 2 1 . 1 9 0 7 0 . 0 6 2 2 1.OOOO 0.074 1 0 4 3 1 . 2 0 0 0 0 . 0 9 0 6 1.OOOO 0 . 1 0 8 7 0 4 4 1 . 2 0 0 0 0 . 0 3 7 9 1.oooo 0 . 0 4 5 4 C 5 1 . 2 0 0 0 0 . 0 2 7 5 l . 0 0 0 0 0 . 0 3 3 0 C6 1 . 2 0 0 0 0 . 0 0 9 6 1.oooo 0 . 0 1 1 5

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMFTS. = 0.4221

COMFT. _P s j p s C 1 / W2 i j . 5 0 6 3 0 . 0 0 4 5 0 . 5 0 0 0 0.001 1 W2/C31 0. 6 3 2 8 0 . 0 0 5 2 0 . 5 0 0 0 0 . 0 0 1 6 0 3 1 / C 3 2 I j . 7 7 0 7 0 . 0 5 0 6 0. 5 0 i j 0 0 . 0 1 9 5 C 3 2 / C 4 1 0. 9 5 8 1 0 . 0 6 6 9 0 . 5 0 0 0 0 . 0 3 2 0 C 4 1 / C 4 2 1. 1074 0 . 0 7 2 5 0 . 5 0 0 0 0 . 0 4 0 2 C 4 2 / C 4 3 1. 1907 0 , 0 7 4 7 0 . 5 0 0 0 0 . 0 4 4 5 C 4 3 / C 4 4 1. 2 0 0 0 0 . 0 6 5 5 0 . 5 0 0 0 0 . 0 3 9 3 0 4 4 / 0 5 1. 2 0 0 0 0 . 0 4 5 8 0 . 5 0 0 0 0 . 0 2 7 5 0 5 / 0 6 1. 2 0 0 0 0 . 0 2 5 9 0 . 5 0 0 0 0 . 0 1 5 6

ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPTS. O . 2 2 1 3

ATTAINED S U B D I V I S I O N INDEX T R I P L E COMPARTMENTS

C O M F T . a _p s j p s • C 1 / W 2 / 0 3 1 i j 5 7 ö 7 I j . C'i j 3 3 0 . 5 0 0 0 I j . 0 0 1 0 * • W 2 / C 3 l / C : 2 0 7 2 0 5 0 . 0 0 2 5 0 . 5 0 0 0 0 . 0 0 u 9 » • 0 3 1 / C T . 2 / C 4 1 _<)3 8 7 7 ( j . I j 1 7-4 l j . 5 0 i j i j I j . C ) i j 6 i j 0 3 2 / C 4 l / C 4 2 l 0 1 9 ü < j . 0 0 5 2 . 5 0 0 i " . i I j . 0 0 2 7 C 4 1 , C 4 2 / C 4 :. 1 . 1 3 2 2 1 j . 0 i j 8 3 • j . 5 0 0 1j 1 j . üC)4 7 C 4 2 / C 4 3 / C 4 4 1 . I 9 i j 7 0 . 0 0 3 0 0 . 5 0 0 0 0 . i j i j 1 a C 4 3 / C 4 4 / C 5 1 . 2 0 0 0 0 . U l 6 3 I j . 5 0 0 0 i:» . 0 0 9 8 C 4 4 / C 5 / C 6 ^ -2 0 0 0 0 . 0 l 4 ó 0 . 5 0 0 0 0 . 0 0 8 8

ATTAINED S U B D I V I S I O N INDEX T R I F L E COMFTS. = 0 . i j 3 5 5

N o t e s L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b O J r d

(18)

ON BUU<HEAD D E C K )

0 + Lör, TW#< TCP

COMPARTMENTS

1 2 3 4

6

7 8 9 10

ONE COMPARTMENT Sl

ONE COMPARTMENT S2

TV/O COMPARTIMENTS Sl

m COMPART^IENTS S2

THREE COMPARTMENTS SI

THREE COMPARTMENTS S2

1

0

1

1 O

O

1

1 o

o

1

1 REQUIRED SUBDIVISION INDEX R - 0.51

A H A I N F D SUBDIVISION INDEX A = 0 . 6 8

(19)

BULKHEAD D E C K )

1

' 1 1 1 r • 1 ! U M S

TMLSX

OEOC r

UL

UMXHcu) !LO«OHOLO; UmtHOU) 1 j

1 1 1

U M X HOD _TK.

fsy '

0 + U>n

1 t 1 1 TK. 0 + U>n m<S. BHDS. I . . _ -^L£J,^(J_GN) ^-UMR wm CÉo; IW« TCP

COMPARTMENTS 1 2 3 4 5 6 7 8 9 1 0

ONE COMPARTMENT S1 1 1 1 1 1 1 0 1 1 1

ONE COMPARTMENT S 2 1 1 1 1 1 1 1 1 1 1

TWO COMPARTMENTS SI

O

TV/O COMPARTMENTS S 2

1

1 THREE COMPARTMENTS S1 0 0 0 0 0 0 0 ' 0

THREE COMPARTMENTS S 2

1

1 REQUIRED SUBDIVISION INDEX R = 0 . 5 1

ATTAINED SUBDIVISION INDEX A = 0 . 6 8

(20)

SHIP 2. D e s c r i p t i o n : S h i p 2 i s a t y p i c a l s h o r t s e a c a r g o RO-RO. The p r i n c i p a l d i m e n s i o n s and l o a d i n g c o n d i t i o n s a r e as g i v e n i n t h e T a b l e o v e r l e a f . The l a y o u t o f t h e v e s s e l i s as t h e a t t a c h e d F i g u r e 2.0. D i s c u s s i o n o f R e s u l t s : The R e q u i r e d S u b d i v i s i o n I n d e x i s 0.52. As b u i l t t h e v e s s e l a t t a i n s an i n d e x o f 0 . 1 1 , t h e u n p r o t e c t e d l o w e r h o l d a f f e c t i n g t h e r e s u l t s . The a d d i t i o n o f s u i t a b l e t r a n s v e r s e s u b d i v i s i o n b e l o w t h e b u l k h e a d d e c k , i n d i c a t e d by f i g u r e 2 . 1 , r a i s e s t h e A t t a i n e d I n d e x t o 0.37. The e f f e c t o f i n c r e a s i n g t h e f r e e b o a r d a s s o c i a t e d w i t h t h e e x t r a t r a n s v e r s e s u b d i v i s i o n b e l o w t h e b u l k h e a d d e c k c a n be e v a l u a t e d as f o l l o w s : V e s s e l F r e e b o a r d A t t a i n e d I n c r e a s e S u b d i v i s i o n I n d e x S h i p 2.2 +0.5ni A S I = 0.45 S h i p 2.3 +1.0m A S I = 0.60 S h i p 2.4 +3.0m A S I = 0.68 The a d d i t i o n o f t r a n s v e r s e and l o n g i t u d i n a l b u l k h e a d s on t h e f r e i g h t d e c k has b e e n e x a m i n e d f o r t h e v e s s e l w i t h t h e f r e e b o a r d i n c r e a s e d by 1.0 m e t r e . The A t t a i n e d S u b d i v i s i o n I n d e x i s 0.71 and e x c e e d s t h e r e q u i r e d v a l u e by a c o n s i d e r a b l e m a r g i n . C o n c l u s i o n : The v e s s e l as c o n s t r u c t e d d o e s n o t m e e t t h e r e q u i r e m e n t s , p r i n c i p a l l y b e c a u s e o f t h e u n p r o t e c t e d l o w e r h o l d .

(21)

The m o d i f i c a t i o n s p r o p o s e d ( b r i n g i n g t h e v e s s e l c l o s e t o p a s s e n g e r s h i p s t a n d a r d ) make c o m p l i a n c e p o s s i b l e . A c o m b i n a t i o n o f t h e m e a s u r e s i s n e c e s s a r y a n d w i l l r e s u l t i n a v e s s e l w i t h a s m a l l e r f r e i g h t c a p a c i t y . The a p p a r e n t o p t i m u m d e s i g n l i e s b e t w e e n S h i p 2.2 and S h i p 2.3 a l t h o u g h 19 t r a i l e r s w i l l be l o s t i . e . 1 5 % o f o r i g i n a l p a y l o a d .

(22)

PRINCIPAL DIMENSIONS OF SHIP, « - ^

L B P m

141.00 L s m

146.80 BREADTH m

_20.70

DEPTH (BHD DK) m

7.05 SUMMER LOAD DRAFT m

_{5. 10}

LOAD D I S P U C E M E N T t o n n e s

1 1 ,000

C O N D I T I O N S :

-CONDITION

LOADED

LIGHT

DRAFT

m

5. 10

4 . 2 7

TRIM ( A s s u m e d for c a l c n . ) m

0

0 ACTUAL LOADED TRIM

m

0

0 KM

m

10.63

11.01 KG Fluid

m

9.55

9.65 GM Fluid ( G M R )

m

_{1 .08}

_{1 .36}

CARGO PERMEABILITY

_M

_70% 70%

DAMAGE CRITERIA:

-DAMAGE ANGLE OF HEEL 2 5 °

MINIMUM GZ < 0 . 1 0 m

RANGE OF STABILITY < 2 0 °

(23)

SHIP 2.0 = A S BUILT

C O M P A R T M E N T S

1 2 3 4 5 6

1 C O M P A R T M E N T SÏ Ö Ö Ö O Ö ï

1 C O M P A R T M E N T S2

1

0

1

1 REQUIRED SUBDIVISION INDEX =

A H A I N E D SUBDIVISION INDEX =

0 . 5 2

0.11

(24)

A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS COMP I . £^ p s a p s W6 0 . 4 4 3 9 0 . 0 1 2 6 0 . 5 0 0 0 0 . 0 0 2 8 • W5 i j . 5 4 7 1 0; 0 2 3 9 0 . 5 0 0 0 0 . 0 0 6 5 • C 4 0 . 7 8 5 3 0 . 1 5 3 5 0 . 5 0 0 0 0 . 0 6 0 3 CT- 1 . 1 4 10 0 . 4 2 8 1 0 . 0 0 0 0 u . 0 0 0 0 C 2 1 . 2 0 0 0 0 . 0 5 7 2 0 . 5 0 0 0 0 . 0 3 4 3 C l 1 . 2 0 0 0 0.0<>79 1 . 0 0 0 0 0 . 0 0 9 5 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0 . 1 1 3 4 N o t e s : » - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y » • - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d REQUIRED S U B D I V I S I O N INDEX = 0 . 5 2 0 9 A T T A I N E D S U B D I V I S I O N INDEX = 0 . 1 1 3 4

(25)

S H I P 2.1 - MODIFIED SHIP ( E X T R A SUBDIVISION B E L O W D E C K )

COMPARTMENTS 1 2 3 4 5 6 7 8 9 10 11

1 COMPARTMENT SI 1 1 0 0 0 0 0 0 1 1 1

1 COMPARTMENT S2

1

1 2 COMPARTMENTS Sl 0 0 0 0 0 0 0 0 0 0

2 COMPARTMENTS S2 1 1 0 0 0 0 0 1 1 1

3 COMPARTMENTS Sl O O O O O O O O O

3 COMPARTMENTS S2 1 0 0 0 0 0 0 1 1

REQUIRED SUBDIVISION INDEX = 0 . 5 2

(26)

S M i p

1 .

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS

COMPT. p W6 0. 4 4 3 9 0. 0 1 2 6 1.OOOO 0, i>«>56 W5 0. 54 7 1 0. 0 2 3 9 I , OOOl) 0.0V31 C 4 2 0. 6501 0. 0 1 2 2 U . 5 0 0 0 0 . 0 0 4 0 C41 0 . 8 2 8 9 0. 0 9 7 4 0. 50<jO 0 . 0 4 0 4 0 3 5 1. 04 2 5 0. 037 1 0 . 5 0 0 0 0 . 0 1 9 3 C34 1. 1 8 0 0 'J. 0 3 7 1 0 . 5 0 0 0 0 . 0 2 1 9 C 3 3 1. 2uOO 0. 0 4 0 9 0 . 5 0 0 0 0 . 0 2 4 6 0 3 2 1. 20<jO V . u371 0 . 5 0 0 0 0 . 0 2 2 2 C3 1 1. 2uijO 0 . 0 2 6 4 1 . iDOOO 0 . 0 3 1 7 C l I . 2000 0. 0 5 7 2 1.OOOO 0 . 0 6 8 6

C l 1. 2ijOO l-l. IJ0 79 1.OOOO 0 . 0 0 9 5

COMPI. a P s a p s W6/W5 C >.5033 0. i:)287 0 . 5 0 0 0 0 . 0 0 7 2 •!> W5/C42 C ). 5 9 0 7 0. 0 2 8 6 0. StjOO 0 . 0 0 8 4 & C 3 2 / C 3 1 1 . 2 0 0 0 0. 0 4 4 7 0 . 5 0 0 0 0 . 0 2 6 8 0 3 1 / 0 2 1 . 2 0 0 0 0. 0 5 1 7 0 . 5 0 0 0 0 . 0 3 1 0 0 2 / 0 1 1 . 2 0 0 0 0. 0 3 1 3 0 . 5 0 0 0 0 . 0 1 8 8

A TTAINED S U B D I V I S I O N INDEX DOUBLE COMPTS. = 0. i j 9 2 3

ATT A I NED S U B D I V I S I O N INDEX T R I P L E COMPARTMENTS

C Ü M P 1 . a P s a p s

W ö / W 5 -C 4 2 0 . 5 4 6 9 0. 0 1 26 l.I. zooo Cl. Oi;'34 « C 3 2 / C 3 1 / C 2 I . 2 0 0 0 0 . 0 2 3 2 0.5000 0.01 39 C 3 1/C2/C1 1 . 2 0 0 0 u. 0 0 7 1 0 . 5 0 0 0 0. 0i;'42 A T T A I N E D S U B D I V I S I O N I NDEX T R I P L E COMPTS. = 0 . 0 2 1 6 N o t e s • - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d R E Q U I R E D S U B D I V I S I O N INDEX = 0 . 5 2 0 9

(27)

COMPARTMENTS

_{1 2 3}

_{4 5 6 7 8 9}

₁₀

₁₁

1 COMPARTMENT

S1

1 1 1

0 0 0 0 1 1

1

1 1 COMPARTMENT

S2

1 1

1

_{1 1 1 1 1}

₁

2 COMPARTMENTS

Sl

0 0 0 0 0 0 0 0 0 0

2 COMPARTMENTS

S2

_{1 1 1 0 0 0 1 1}

1 1

3 COMPARTMENTS

Sl

0 0

0 0 0 0 0 0

0 3 COMPARTMENTS

S2

1 0 0 0 0 0 0 1 1

REQUIRED SUBDIVISION INDEX =

A H A I N E D SUBDIVISION INDEX =

0 . 5 2

0 . 4 5 '

(28)

S H I P

ATTAINED S U B D I V I S I O N INDCX S I N G L E COMPARTMENTS

COMPT. a P •sp» W6 0 . 4 4 3 9 0 . 0 l 2 i l.OOOO 0.0O56 • W3 0.3471 0.0239 l.OOOO 0 . 0 1 3 1 • C 4 2 0 . 6 5 O I 0.0122 1.oooo 0. 0O8O C 4 l 0 . 8 2 8 9 0.0974 0.3OO0 0 . 0 4 0 4 0 3 5 1.0425 0.0371 0.3OOO 0 , 0 1 9 3 C 3 4 1.1800 0.0371 0.5OOO 0 . 0 2 1 9 C 3 3 I.20OO 0.0409 0. 5 0 0 0 0 . 0 2 4 6 0 3 2 1 . 20<>j 0.0371 l.OOOO 0 . 0 4 4 3 031 1 . 2 0 0 0 0.0264 1 . O O O O 0. U 3 1 7 0 2 1 . 2«XJO 0.0572 1 . O O O O 0 , 0 6 8 6 C l l.20OO 0. 0Ü79 1.OOOO 0. i X) 9 5

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPTS. - 0 . 2 8 7 0

COMPT. W 6 / W 5 W 5/ C 4 2 0 4 2 / 0 4 1 0 3 3 / 0 3 2 C 3 2 / C 3 1 C 3 1 / C 2 0 2 / 0 1 O .5 0 3 3 O .5 9 0 7 O .7 8 5 3 1 . 20OO l . 2 0 O 0 1.2000 1.20OO O .0 2 8 7 O .0 2 8 6 0.0439 0.0523 0.0447 0.0317 0.0313 O . S i j O O O .5 0 0 0 0 . 5 O O O O . 5 0 0 0 0 . 3 O O O 0 . 3 O O O O. 3 0 0 0 1.1. 0 0 7 2 O.0084 0 . 0 1 7 2 0 . 0 3 1 5 O . 0 2 6 8 0 . 0 3 1 0 0 . 0 1 8 8

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPTS. =• 0 , 1 4 1 1

: 0 M p T . a p s W ö / W 5 / C 4 2 C 3 2 / C 3 1 / C , CT. l / C 2 / C 1 M . 54o'=? 1 . TOO'.i 1 . rC'UCi 0 . 0 1 2 6 O . u 2 3 2 O . U i j 7 1 0 . 50<-lO O . S i j O O O . 5 0 0 0 O . 0 0 3 4 u . 0 1 3 9 O . i j 0 4 2 A T T A I N E D S U B D I V I S I O N INDEX T R I P L E COMFTS. O .0 21 6 N o t e s • - L o n g i t u d i n a l BulWhead F l o o d i n g O u t b o a r d O n l y •« - L o n g i t u d i n a l B u l k h e a d F l o o d i n g Al»o I n b o a r d R E Q U I R E D S U B D I V I S I O N INDEX O .5 2 0 9 A T T A I N E D S U B D I V I S I O N INDEX ^ 0 . 4 4 9 7

(29)

COMPARTMENTS 1 2 3 4 5 6 7 8 9 10 11

1 COMPARTMENT SI 1 1 1 0 0 1 0 1 1 1 1

1 COMPARTMENT S2

1

1 1 1

2 COMPARTMENTS Sl 1 1 0 0 0 0 0 0 1 1

2 COMPARTMENTS S2 1 1 1 0

1

1 3 COMPARTMENTS SI O O O O O O O O O

3 COMPARTMENTS S2 1 0 0 0 0 0 0 1 1

REQUIRED SUBDIVISION INDEX

A Ï Ï A I N E D S U B D M S I O N INDEX

= 0 . 5 2

= 0 . 6 0

(30)

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS COMPT. P 2 W6 0. 4 4 3 9 0 . 0 1 2 6 1.OOOO 0 . 0 0 5 6 W5 0. 3 4 7 1 0 . 0 2 3 9 1.oooo 0 . 0 1 3 1 C 4 2 0. 6 3 0 1 0 . 0 1 2 2 1.oooo 0 . 0 0 8 0 041 0. 8 2 8 9 0 . 0 9 7 4 0 . 5 0 0 0 0 . 0 4 0 4 C 3 5 1. 0 4 2 5 0 . 0 3 7 1 0. 50O«J 0 . 0 1 9 3 0 3 4 1. 1800 0 . 0 3 7 l 1.OOOO 0 . 0 4 3 7 0 3 3 l . 2 0 0 0 0 . 0 4 0 9 0 . 5 0 0 0 0 . 0 2 4 6 C 3 2 1. 2 0 0 0 0 . 0 3 7 1 1 . 00<jO 0 . 0 4 4 5 C31 1. 2 0 0 0 0 . 0 2 6 4 1.oooo 0 . 0 3 1 7 02 l . 200t"j 0 . 0 5 7 2 1.oooo 0 . 0 6 8 6 01 1. 2 0 0 0 0 . 0 0 7 9 1.oooo 0 . 0 0 9 5

COMPT. a P 5 a p s W6/W5 0. 5 0 3 3 0 . 0 2 8 7 1.OOOO 0 . 0 1 4 5 <> W5/C42 0 . 5 9 0 7 <), 0 2 8 6 1. o<;>oo 0 . 0 1 6 9 » 0 4 2 / 0 4 1 0 . 7 8 5 3 0. 04 39 0 . 5 0 0 0 0 . 0 1 7 2 0 3 5 / 0 3 4 1 . 1 <"j 1 5 0 . 0 5 0 7 0 . 5 0 0 0 0 . 0 2 7 9 0 3 4 / 0 3 3 1 . 1 8 0 2 0 . 0 5 2 5 0 . 5 0 0 0 0 . 0 3 1 0 C 3 3 / C 3 2 1 . 2 0 0 0 0 . 0 5 2 5 0 . 5 0 0 0 0 . 0 3 1 3 0 3 2 / 0 3 1 1 . 2 0 0 0 0 . 0 4 4 7 0 . 5 0 0 0 0 . 0 2 6 8 C 3 1 / C 2 1.2000 0 . 0 5 1 7 1.OOOO 0 . 0 6 2 1 C2/C1 1 . 2 0 0 0 0 . 0 3 1 3 1.oooo 0 . 0 3 7 6

ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPTS.= 0 . 2 6 5 5

CQMPT a p s W 6 / W 5 / C 4 2 C 3 2 / C 3 w c : C 3 1 / C 2 / C 1 0 .5 4 6 9 1 . Z O < j O 1. 2 0 0 0 0 . 0 1 2 6 0 . 0 2 3 2 0 . 0 0 7 1 0 . S i j O O <•') . 5 0 ' J O 0 . 5 0 0 0 O. 0 0 3 4 0 . 0 1 3 9 O . 0 0 4 2

ATTAINED S U B D I V I S I O N INDEX T R I P L E COMPTS.= 0 . 0 2 1 6

N a t e s » - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d

REQUIRED S U B D I V I S I O N INDEX = 0 . 5 2 0 9

(31)

INCREASED FREEBOARD)

COMPARTMENTS

_{1 2 3}

_{4 5 6 7 8 9 10 11}

1 COMPARTMENT

Sl

1 1 1

1 1 1 0 1 1

1 1

1 COMPARTMENT

S2

1 1 1

1 1 1 1 1 1

1 1

2 COMPARTMENTS

SI

1 1 0 0 0 0 0 0 1 1

2 COMPARTMENTS

S2

1 1 1 1 1 1 1 1 1 1

3 COMPARTMENTS

Sl

0 0

0 0 0 0 0 0 0

3 COMPARTMENTS

S2

1 0 0 0 0 0 0 1

1 REQUIRED SUBDIVISION INDEX = 0 . 5 2

(32)

= = = = 3 = = = = = = 3=i«« = = K = = j c a = » = « a 3 = = «:M = = = = = = 3 M = = = M » = « : A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS COMPT. _P W6 0 . 4 4 3 9 0 . 0 1 2 6 1 . UO(X) 0 . 0 0 5 6 W5 0.54 71 0 . 0 2 3 9 1. 00<X) 0.0131 C 4 2 _Ó.650 I 0 . 0 1 2 2 I.oooo 0.0O80 041 0 . 8 2 8 9 0 . 0 9 7 4 1.oooo 0 . 0 8 0 7 C 3 5 1 . 0 4 2 5 0.0371 1.oooo 0 . 0 3 8 6 0 3 4 1.1800 0.0371 1.oooo 0 . 0 4 3 7 0 3 3 1.2000 0 . 0 4 0 9 0 . 5 0 0 0 0 . 0 2 4 6 0 3 2 1 . 2tX>0 0.037 1 1.oooo 0 . 0 4 4 5 031 1.2000 0 . 0 2 6 4 I.oooo 0 . 0 3 1 7 02 1 . 2 0 0 0 0 . 0 5 7 2 1.oooo 0 . 0 6 8 6 C l 1 . 20<X) 0 . 0 0 7 9 1.oooo 0 . 0 0 9 5 MT PHI N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0 . 3 6 8 6

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPARTMENTS

COMPT. a _P a p s W6/W5 0 . 5 0 3 3 0 . 0 2 8 7 1 . 0<)ijO 0 . 0 1 4 5 * W5/C42 0 . 5 9 0 7 0 . 0 2 8 6 1 . OijijO 0 . 0 1 6 9 » 0 4 2 / 0 4 1 0 . 7 8 5 3 I J . 0 4 3 9 0 . 5 0 0 0 0 . 0 1 7 2 04 1 / 0 3 5 ' 0 . 9 0 7 4 0 . 0 6 5 8 0 . 5 0 0 0 0 . 0 2 9 9 0 3 5 / C 3 4 I . I I J 1 5 0 . 0 5 0 7 0 . 5 0 0 0 0 . 0 2 7 9 0 3 4 / 0 3 3 1 . 1 8 0 2 0 . 0 5 2 5 0 . 5 0 0 0 0 . 0 3 1 0 0 3 3 / 0 3 2 1 . 2 0 0 0 0 . 0 5 2 5 0 . 5 0 0 0 0 . 0 3 1 5 C 3 2 / C 3 1 1 . 2 0 0 0 0 . 0 4 4 7 0 . 5 0 0 0 0 . 0 2 6 8 0 3 1 / 0 2 1 . 2 0 0 0 0 . 0 5 1 7 1.OOOO 0 . 0 6 2 1 0 2 / 0 1 1.200O 0 . 0 3 1 3 1.OOOO 0 . 0 3 7 6

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPTS . = KK 2 9 5 3

M r ; M I _{NED S U B D I V I S I O N INDEX T R I P L E COMPARTMENTS}

CÜMF' T . _a _P _s _{ag s} Wib/ W5/ C 4 2 0 . 5 4 6 9 0 . 0 I 26 0. 5iji!i'j 0 . 0 0 3 4 » C 3 2 / C 3 1/C2 1.2000 0 . 0 2 3 2 0 . 5 0 0 0 0 , 0 1 3 9 C3 1 / 0 2 / 0 1 1 . 20C)0 0 . 0 0 7 1 0 . 5 0 0 0 0 . 0 0 4 2 A T T A I N E D S U B D I V I S I O N INDEX T R I F L E COMPTS.= 0 . 0 2 1 6 N o t e s • - L o n g i t u d i n a l B u l l - h e a d F l o o d i n g O u t b o a r d O n l y *» - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d R E Q U I R E D S U B D I V I S I O N INDEX = 0 . 5 2 0 9 A T T A I N E D S U B D I V I S I O N INDEX = 0 . 6 8 5 5

(33)

COMPARTMENTS

1 2 3 4

5

r 0

7

8

9 10 11

1 COMPARTMENT

Sl

1 1 1 1

1 1 1

1

1 1 1

1 COMPARTMENT

S2

1 1 1 1

1 1

1

1 _{1 1}

2 COMPARTMENTS

Sl

1 1 0

0 0 0

0

1

1 2 COMPART^IENTS

S2

1 1 1

1 1

1

1 3 COMPARTI/IENTS

Sl

0 0 0

3 COMPARTMENTS

S2

1 0 0

0 0 0

0

1 1 •1 1

REQUIRED SUBDIVISION INDEX = 0 . 5 2

A H A I N E D SUBDIVISION INDEX = 0.71

(34)

FREEBOARD + LONGITUDINAL BULKHEADS ON BULKHEAD DECK)

_ COMPARTMENTS 1 2 3 4 5 6 7 8 9 10 11

1 COMPARTMENT SI

1

1 1 COMPARTMENT S2

1

1 2 COMPARTMENTS Sl 1 1 0 0 0 0 0 0 1 1

2 COMPARTMENTS S2

1

1 3 COMPARTMENTS Sl O O O O O O O O O

3 COMPART^/IENTS S2 1 0 0 0 0 0 0 1 1

REQUIRED SUBDIVISION INDEX =

ATTAINED SUBDIVISION INDEX =

0 . 5 2

0,71

(35)

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS COMPT. P a p s M6 0 . 4 4 3 9 0 . 0 1 2 6 1.OOOO 0 . 0 0 5 6 « W5 0.5471 0. 0 2 3 9 1. I X J O O 0.0131 • C 4 2 0.6501 0 . 0 1 2 2 1.oooo 0 . 0 0 8 0 04 1 0 . 9 2 8 9 0 . 0 9 7 4 1.0000 0.0807 C 3 5 1.0425 0 . 0 3 7 1 1.oooo 0 . 0 3 8 6 0 3 4 l . 1 8 0 0 0 . 0 3 7 1 1.oooo 0 . 0 4 3 7 C 3 3 l . 2 0 0 0 0. •j409 1.oooo 0.0491 C 3 2 1.2000 0 . 0 3 7 1 1.oooo 0 . 0 4 4 5 0 3 1 1. 2 0 I J O 0 . 0 2 6 4 1.oooo 0.0317 0 2 1.2000 0 . 0 5 7 2 1.oooo 0.0686 C l 1 . 200t j 0 . 0 0 7 9 1.oooo 0 . 0 0 9 5

ATTAINED S U B D I V I S I O N INDEX S I N G L E COMPTS, , ^ >j.3931

COMPT. p s a p s W6/W5 0 . 5 0 3 3 0 . 0 2 8 7 1.OOOO 0 . 0 1 4 5 W5/C42 IJ. 5 9 0 7 i j . 0 2 8 6 1 . OijOO 0 . 0 1 6 9 0 4 2 / 0 4 1 0. 7853 0. i:i439 IJ. 5 0 0 0 0 . 0 1 7 2 0 4 1 / C 3 5 0. 9 0 7 4 L). 0 6 5 8 0 . 5 0 0 0 0 . 0 2 9 9 0 3 5 / C 3 4 1. 1015 0. 0 5 0 7 0 . 5 0 0 0 0 . 0 2 7 9 0 3 4 / 0 3 3 1. 1802 0. 0 5 2 5 0 . 5 0 0 0 0 . 0 3 1 0 0 3 3 / 0 3 2 1. 2 0 0 0 0. 0 5 2 5 0 . 3 0 0 0 0 . 0 3 1 3 0 3 2 / 0 3 1 1. 2 0 0 0 0. 0 4 4 7 0 . 5 0 0 0 0 . 0 2 6 8 0 3 1 / 0 2 1. 2 0 0 0 0 . 0 5 1 7 1.OOOO 0.0621 C 2 / 0 1 1. 200O 0. 0 3 1 3 1.OOOO 0 . 0 3 7 6 •5

ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPTS.= 0 . 2 9 5 3

COMPT. _{a p s} W6/W5/C42 0 3 2 / 0 3 1 / o : 0 3 1 / 0 2 / 0 1 O.5469 1.2000 1.2000 0.0 126 O . 0 2 3 2 O,0071 O . 5 0 0 0 O.500O O . 5 0 0 0 O.0034 O.0139 O.0042

ATTAINED S U B D I V I S I O N INDEX T R I P L E COMPTS.= 0 . 0 2 1 6

N o t e s • - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y »* - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d

(36)

S H I P 3 D e s c r i p t i o n : S h i p 3 i s a m i x e d RO-RO a n d c o n t a i n e r v e s s e l . The p r i n c i p a l d i m e n s i o n s a n d l o a d i n g c o n d i t i o n s a r e g i v e n o v e r l e a f . The l a y o u t o f t h e v e s s e l i s as t h e a t t a c h e d f i g u r e 3.0. D i s c u s s i o n o f R e s u l t s : The R e q u i r e d S u b d i v i s i o n i n d e x i s 0.48. As b u i l t t h e v e s s e l a t t a i n s an i n d e x o f 0 . 1 2 , t h e r e s u l t s b e i n g h e l p e d i n c o m p a r i s o n w i t h v e s s e l s 1 a n d 2 b y t h e r e l a t i v e l y e x t e n s i v e s u b d i v i s i o n a l r e a d y f i t t e d b e l o w t h e b u l k h e a d d e c k . B e c a u s e o f t h i s e x i s t i n g s u b d i v i s i o n , f u r t h e r s u b d i v i s i o n was n o t a t t e m p t e d f o r t h i s s t u d y . F i g u r e s 3.1 t o 3.3 show t h e e f f e c t o f i n c r e a s i n g t h e f r e e b o a r d i n s t e p s 0.5m, l.Om a n d 3.0m. T h i s a l s o s h o w s t h a t t h e a t t a i n e d i n d e x c a n n o t be r a i s e d a b o v e 0.17 as a r e s u l t o f t h e l a r g e h o l d o v e r a l m o s t t h e w h o l e o f t h e l e n g t h o f t h e v e s s e l .

(37)

LBP m

_1C2

L s m

BREADTH m

I S . 5

DEPTH m

_{5 . 3 0}

SUMMER LOAD DRAFT m

LOAD DISPLACEMENT t o n n e s

78 12

C O N D I T I O N S :

-CONDITION

LOADED

LIGHT

DRAFT m

_5.₂₈ _{4 . 1 5}

TRIM ( A s s u m e d for c a l c n . ) m

0 0

ACTUAL LOADED TRIM m

- 0 . 8 2 0

KM

m

_{9 . 9 6}

_q.

_{6 8}

KG Fluid m

8 . 6 4 5 . 0 7

• GM Fluid (GMR ) m

_{1 . 32} _{4 . 6 1}

CARGO P E R M E A B I L i r r M

₇₀ _{7 0}

DAMAGE CRITERIA:

-DAMAGE ANGLE OF HEEL i> 2 5 °

MINIMUM GZ < 0 . 1 0 m

RANGE OF STABILITY < 2 0 °

(38)

SHIP 3.0 - A S BUILT

COMPARTMENT 101 102 103 104 1 0 5 106 107

C0MPART)/1ENT Sl 0 0 0 0 0 0 1

)NE COMPARTMENT S2

1

0

1

1 "^.VO COMPARTMENTS Sl 0 0 0 0 0 0

> ' 0 COMPARTMENTS S2

1 0 0

1

1 REQUIRED SUBDIVISION INDEX = 0 . 4 7

ATTAINED SUBDIVISION INDEX = 0.12

(39)

5 H i P 3 - 0 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS a p s 0.4813 0.0102 0.5000 0.0025 ** 0.7409 0.1528 0.5000 0.0566 1 . 07 56 0 . 0463 0 . OOOO 0 . OtjOO * * i . 2 0 0 0 0.0202 0.5000 0.0121 * * 1.2000 0.0202 0.5000 0.0121 * * 1.2(:)!:)0 0.0028 o . s o o o o . o c ) i 7 * * 1 . 2000 0 . C) C) 7 5 1 . 000(j 0 . 0090 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.0939

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPARTMENTS

)MPT. a p s a p s '1/102 0.6 595 0.0119 0.5000 0 . 0039 * % J - / 103 0.8974 0 .0196 0.OOOO (!). OOOO * * >Z/ 104 1.1298 0 . 0276 0.OOOO 0 . OOOO * * ) 4 / 105 1.2000 0.0246 0.5000 r j _{0147 **} ^5 / 106 1.2000 0.0154 0.5000 0 . 0093 * * ) 6 / 107 1.2000 0 . 0r)20 0.5000 0 . 0(:.>12 * *

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPTS 0.0291

t e s : *. _{- L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o}_{a r d On}₁_y ** _{- L o n g i t u d i n a l B u 1 k h e a d F l o o d i n g A l}_{S O} _{I n b o a r d} - - - - - _========_{=============} = = = = = = = = = = = = = REQUIRED S U B D I V I S I O N INDEX = 0.4759 A T T A I N E D S U B D I V I S I O N INDEX _{= 0.1230}

(40)

SHIP 3.2 - MODIFIED SHIP ( 0 . 5 m I N C R E A S E D F R E E B O A R D )

n

11 U>JM OCCX ENGNE ROCW

H z

C G M P A R ™ E N T iOi 1 0 2 1 0 3 1 0 4 1 0 5 1 0 6 ^ 0 7 :E C O M P A R T V I E N T Sl 0 0 0 0 0 0 i :E C O M P A R T M E N T S 2 1 1 1 1 1 1 1 ^0 C O M P A R T M E N T S Sl 0 0 0 0 0 0 /O C O M P A R T V I E N T S S 2 1 1 1 1 1 1 '

REQUIRED SUBDIVISION INDEX = 0 . 4 7

ATTAINED SUBDP/ISION INDEX = 0.17

(41)

SHIP 3-1

A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS MPT a p s 0.4813 0.7409 1.07 56 1.2000 1.2000 1.2000 1 . 2(1)00 0.0102 0 O (J O 0 ,1528 0468 . 0202 0202 , 0028 0.007 5 O O O O 0 O 1 5000 50(j0 5000 , 5000 5000 5000 00(1)0 0.0025 O.0566 02 52 0121 .0121 O.0017 O.0090 (.) O O , A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.1191

IMPT _{a p s} ! l / 1(1)2 0 .6595 0 . 0119 0 . 5000 0 . (;)(j39 * * )2/ 103 0 . 8974 0 . 0196 ^o. 50 OC) 0 . 0088 * * ) 3 / i 0 4 1 . 1298 0 . 0276 C 0. 500C)r> 0 . 01 56 '4/105 1 . 2000 0 . 0246 0 . 5000 0 . (j 1 4 7 * * )5/106 1 . 20(.')(J 0 . 0154 0 . 5(I)(I)(".) 0 . 0(1)93 '6/107 1 . 2(jO(I) 0 . (j02(j 0 . 50(jO 0 . (;)(".) 12 * *

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPT! (I). 053 5

t e s : * - L o n g 1 tu(d 1 n a 1 B u l l i h e a d F l o o d i n g O u t b o a r d O n l y ** - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d

REQUIRED S U B D I V I S I O N INDEX 0.47 59

(42)

SHIP 3.3 - MODIFIED SHIP ( l . O m INCREASED F R E E B O A R D )

n

1 1 +1.0m : , r - t .

A>^'

mi dm

_'1

3^ t TAiSKS

COMPARTMENT 101 102 103 1 0 4 105 106 10",

NE COMPARTMENT S1 0 0 0 0 0 0 1

NE CGMPART\1ENT S2

1 .

1

1 m

COMPARÏÏ.IENTS SI 0 0 0 0 0 0

A'O COMPARTMENTS S2 1 1 0 1 1 1 '

REQUIRED SUBDIVISION INDEX = 0 . 4 7

ATTAINED SUBDI^/ISION INDEX = 0.16

(43)

SHIP 3 - 3

A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS a p 1 0.4313 0.0102 0.5000 0.002 5 0.7409 0.1523 0.5000 0.0566 3 1.07 56 0.0468 0.5000 0.0252 4 1.2000 0.0202 0.5000 0.O121 1.2000 0.0202 0.5000 0.0121 1.2000 0.0023 0.5000 0.0017 ^ 1.2000 0.007 5 1.0000 0.0090 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.- 0.1191

'ATTAINED S U B D I V I S I O N INDEX DOUBLE COMPARTMENTS

FT . a _p _{a p s} .'102 0 .6595 0 .0119 0.5000 0.0039 tt .T03 0 . 3974 0 .0196 0.5000 0. C'oas t % / I 04 i . 1298 0 . 0276 0 . (j(l)OO C). o o o o tt / 10 5 1 . 2000 0 . 0246 0.5000 0 . CT 4 7 11 /TO 6 1 . 20!;)0 Q . 01 54 0.5000 C). C)C)93 11 /107 1 . 2000 0 . 0020 0.5000 C). C)0 12 11

A T T W N E D S U B D I V I S I O N INDEX DOUBLE COMPTS. = 0.0379

* - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y * - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d REQUIRED S U B D I V I S I O N INDEX = 0.4 7 59 A T T A I N E D S U B D I V I S I O N INDEX = 0.1570 ** tt tt tt tt

(44)

SHIP 3.4 - MODIFIED SHIP ( 3 . 0 m INCREASED FREEBOARD)

COMPARTMENT 101 i 0 2 103 104 1 0 5 106 107

DNE COMPARTMENT S1 0 0 0 0 0 1

DNE COMPARTMENT S2

1

1 m

COMPARTMENTS SI 0 0 0 0 0 0

TWO COMPARTMENTS S2

1

1 REQUIRED SUBDIVISION INDEX = 0 . 4 7

A m i N E D SUBDI'/ISION INDEX =

(45)

5 h i

P

3-4-A T T 3-4-A I N E D S U B D I V I S I O N INDEX S I N G L E COMP3-4-ARTMENTS •IPT. a p s a p s L 0.4313 0.0102 0.5000 0.0025 2 0.7409 0.1528 0.5000 0.0566 5 1.07 56 0.0468 0.5000 0.0252 ; 1.2000 0.0202 0.5000 0.0121 5 1,2000 0.0202 0.5000 0.0121 b 1.2000 0.0028 1.0000 0.0033 7 1.2000 0.007 5 1.OOOO 0.0090 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.1207

I P T . a _P s a p s 1/102 0.6595 0 .0119 C). 5000 0. 0039 ** 2/103 0.3974 0 . 0196 0.5000 0.0083 ** 3/104 1 . 1298 0 .0276 0 . 50C)0 0.0156 ** 4/10 5 1.2000 0 .0246 0.5000 0 . C) 147 ** 5/106 1.2000 0 .0154 0.5000 0.0093 ** 6/107 1.2000 0 . 002<!) 0.5000 0.0012 • *

A T T A I N E D S U B D I V I S ION INDEX DOUBLE COMPTS .= 0.0 53 5

t e s : * - L o n g i t u d i n a l B u l k h e a d F l o o d i n g O u t b o a r d O n l y ** - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d REQUIRED S U B D I V I S I O N INDEX = 0.4759 A T T A I N E D S U B D I V I S I O N INDEX = 0.1742 tt tt tt tt

(46)

SHIP 3.5 - AS BUILT WITH CARGO DECK SUBDIVISION

COMPART)/IENT 101 102 103 104 105 106 107

ONE COMPARTMENT SI 1 0 0 0

ONE COMPARTMENT S2

1

1 vm COMPARTMENTS SI

O

TWO COMPARTMENTS S2

1

1 REQUIRED SUBDIVISION INDEX = 0 . 4 8

(47)

H/P 3'5

A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS a p s a p s 0.4813 0.0102 1.0000 O . 0 0 4 9 ** O' .7409 (j . 1528 0.50 O O O . O 566 1.0756 0.0468 0.5000 0.0252 ** 1.2000 O . 0 2 0 2 0.5000 0.0121 * * 1.2000 0.0202 1.0000 0.0242 ** 1 . 2000 O . 0028 1 . OCH:)O O . 0<j33 * * 1 . 2000 C). 007 5 1 . '::)000 O . 0 0 9 0 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.1353

P 5 a p s 102 0.6595 0.0119 0 . 5C)C)0 C). C>C)39 ** 103 0.8974 0.0196 C). 50 !:)<:) 0 . OC'SS * * 104 1.1298 0.0276 _{0 .} 5OOC) 0 . 0156 * * 105 1 . 20C)0 0.0246 C). 5C)C)C) 0 . 0 1 4 7 106 1 . 2C)00 0.0154 1 . 0C>C)C) C) . 0 1 8 5 * t 107 1.2000 C). 0020 1 . C)C)C>C) 0 . C)C)24 **

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPTS.= _0.0640

5 : * - L o n g i t u d i n a l B u I k h e a d F 1 o o d i n g O u t b o a r d On1 _y « * - L o n g i t u d i n a l B u 1 k h e a d F 1ood i n g A l s o I n b o a r d y ====== = = = = = = = = = = = = = = ========== ~ ~ — — TT — — ~ " r _{= = == = =======}= = = : REQUIRED S U B D I V I S I O N INDEX = 0.4759 A T T A I N E D S U B D I V I S I O N INDEX _{= 0.1993}

(48)

C0MPART)/1ENT 101 102 103 104 105 106 107

ONE COMPARTMENT Sl 0 0 0 0 0 0 1

ONE COMPARTMENT S2 '

1

1 P/VO COMPARTMENTS Sl 0 0 0 0 0 '0

TWO COMPARTMENTS S2

1

1 REQUIRED SUBDIVISION INDEX = 0 . 4 8

ATTAINED SUBOr/lSION INDEX =

(49)

SHIP 3 - 6

S U B D I V I S I DN INDEX S I N G L E COMPARTMENTS et _P 5 a p s 0.4313 0. 0102 0. 5C)0C) 0.0025 tt 0.7409 0. 1528 0.5000 0.0566 1.07 56 0. 0463 0.5000 0.0252 11 1.2000 0 . 0202 0. SC'OO 0.0121 11 1.2000 0. 0202 0 . 500(1) 0.0121 11 1 . 2C>00 0 . 0028 0.5000 0.0017 1.2000 0 . 007 5 1 . (.")(!) (I)'J 0.0090 A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.1191

a p 5 a p s 1C) 2 0.6 595 I j _.0119 _0.5000 ₀_{. (j(:)39} ** 103 0.397 4 Q .0196 0 . 5(I)(1)'.I) 0 . (j.jSS tt 104 1 . 1298 (1) .0276 0 . 5(I)0'j 0 . 0156 tt 10 5 1.2(j(:)(:) 0 . 02 46 0 . 5(;)(I)(j 0 . 0147 11 106 1 . 20(J.J 0 . 01 54 0 . 5 ('.)('.)(!) 0 . 0093 11 107 1.2(r)C)C) 0 . (1)02(1) 0.5(:>oo 0 . (!)(:) 12 11

A T T A I N E D S U B D I V I S ION INDEX DOUBLE COMPTS 0 . C)5 3 5

s: * - L o n g i tu(d i n a 1 B u l K : h e a d F l o o d i n g O u t b o a r d O n l y ** - L o n g i t u d i n a l B u l k h e a d F l o o d i n g A l s o I n b o a r d

REQUIRED S U B D I V I S I O N INDEX = 0. 4 7 59

(50)

SHIP 4. D e s c r i p t i o n : S h i p 4 i s a t y p i c a l s h o r t s e a c a r g o RO-RO. The p r i n c i p a l d i m e n s i o n s a n d l o a d i n g c o n d i t i o n s a r e shown i n t h e T a b l e o v e r l e a f . The l a y o u t o f t h e v e s s e l i s as t h e a t t a c h e d f i g u r e 4 . 0 . D i s c u s s i o n o f R e s u l t s : T h e R e q u i r e d S u b d i v i s i o n I n d e x i s 0 . 4 6 . As b u i l t t h e v e s s e l a t t a i n s an i n d e x o f o n l y 0.16 as a r e s u l t o f t h e p o o r s u b d i v i s i o n b e l o w t h e b u l k h e a d d e c k . I n c r e a s i n g t h e s u b d i v i s i o n r a i s e s t h e A t t a i n e d I n d e x t o 0.53 a n d i n c r e a s i n g f r e e b o a r d b y s t e p s o f 0.5m, l m a n d 3m p r o d u c e s v a l u e s o f 0 . 4 0 , 0.55 a n d 0 . 8 8 . A c o m b i n a t i o n o f t h e s e a p p r o a c h e s i s shown i n f i g u r e s 4.5 a n d 4.6 w h i c h p r o d u c e s an A t t a i n e d I n d e x o f 0-75 a n d 0.68 r e s p e c t i v e l y . C o n c l u s i o n : T h e v e s s e l as b u i l t d o e s n o t m e e t t h e r e q u i r e m e n t s .

(51)

LBP m

88.0

L s m

88.0

BREADTH m

15.3

DEPTH m

_10.3

SUMMER LOAD DRAFT m

4 . 1 8

LOAD DISPLACEMENT tonnes

3057

CONDITIONS:-CONDITION

LOADED

UGHT

DRAFT m

_{i .}_i.p _{3 . 7 7}

TRIM ( A s s u m e d for c a l c n . ) m

0 0

ACTUAL LOADED TRIM m

- 1 . 1 7 - 0 . 9 2

KM

m

8 . 6 6 8 . 4 5

KG Fluid m

_7.01 5. 76

GM Fluid ( G M R ) m

₁_{. 6 5} _{2 . 6 9}

CARGO PERMEABILITT M

70 70

DAMAGE CRITERIA;

-DAMAGE ANGLE OF

H E E L

>

2 5 °

MINIMUM GZ

<

O.lCm

RANGE OF S T A B I U r r < 2 0 °

FAILS ON CRITERIA

(52)

SHIP 4.0 - A S BUILT

01 COMPARTMENT 101 102 103 104 105 :C6 107

ONE C O M P A R I ^ I E N T Sl 0 0 0 0 0 0 0

ONE COMPARTMENT S2 1 O O 1 1 1 i

C 0 M ° A R T \ 1 E N T S Sl 0 0 0 0 0 0

vm

COMPARTMENTS S2 0 0 0 0 0 1

REQUIRED SUBDI'TISION INDEX R = 0.46

ATTAINED SUBDIVISION INDEX A = 0.15

(53)

SHiP

A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPARTMENTS •IPT _{a p s} Ü. 4327 0.5432 0.8495 i . 1670 1 . 2000 1.2000 1.2000 0.0070 O.0004 0.2070 0.1130 0.0643 0.0773 0.0512 0.5000 0.5000 OOOO OOfDO 5000 5000 5000 0015 0001 OOOO oooo 0386 0.0464 0.0307 I t A T T A I N E D S U B D I V I S I O N INDEX S I N G L E COMPTS.= 0.1173

a p s

0.5155 0 . C)0 11 C). (L^-lMjO 0 . OOtjC) « t

0.7663 0.ij070 0. OC'C'C.) 0.0'l'OO it

i;>.9564 0.0849 0. OijOO 0.0000 1.1670 0.0772 O.OOijO 0.0000 1 . 20(JO 0 . r)733 V . 0'?00 0 . OOOO

1.2000 0.0693 0. 5C":)0 0.(".)4i6

A T T A I N E D S U B D I V I S I O N INDEX DOUBLE COMPTS.= 0 . 0 4 1 6

* - L o n g i t u d i n a l & u H ; h e a d F l o o d i n g O u t b o a r d On 1 / ** - L o n g i t u d i n a l B u l l - h e a d F l o o d i n g A l s o I n b o a r d

REQUIRED S U B D I V I S I O N INDEX = 0.4600

(54)

SHIP 4.1 - IMPROVED SUBDIVISION

] M P A R : \ 1 E N T l O l : Q 2 1 0 3 1 Q 4 1 0 5 1 C 6 - 0 7 m 1 Q 9 : C C M P A R T \ 1 E N T S: 1 1 ; 1 0 1 1 1 1 C C M P A R I / I E N T S 2 1 1 1 1 1 1 1 ^ i } C 0 M P A R P . 1 E N T S

Sl

O

3 C O M P A R T ^ i E N T S S2 1 1 1 1 1 1 1 1