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1、哈爾濱工程大學(xué)碩士學(xué)位論文Ultimate Strength Analysis of Ship Structure Based onIdealized Structural Unit Method姓名:BELAHCENE Massinissa申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):Design and Construction of Naval Architecture andOcean Structures指導(dǎo)教師:Associate Prof.Qi
2、n Hongde2012-03A B S T R A C TT h e u l t i m a t es t r e n g t ho f s h i ps t r u c t u r e si n d i c a t e st h el i m i t so f t h e i rc a r r y i n gc a p a c i t Vo fs h i p s ,S O ,i t h a s a l w a y s b e e n
3、 w i d e s p r e a d c o n c e r na n d a t t e n t i o n i n t h e f i e l d o f t h e s h i pm e c h a n i c s .A f t e ry e a r so fr e s e a r c ha n d d e v e l o p m e n t ,t h e r ea r e a l a r g en u m b e r o f
4、 m e t h o d so fh u l lu l t i m a t es t r e n g t hc a l c u l a t i o n ,i nw h i c h t h ei d e a ls t r u c t u r a lu n i tm e t h o d ( I S U M ) c o m p a r e dt oo t h e rm e t h o d f o rc a l c u l a t i n g
5、h a st h ea d v a n t a g e so f s h o r t e r t i m e ,h i g h e ra c c u r a c ya n d S O o n .B a s e do nt h ei d e a ls t r u c t u r e e l e m e n tm e t h o d ,t h eu l t i m a t es t r e n g t h o f h u l ls t r
6、u c t u r ew i l lb ea n a l y z e di nt h i st h e s i s .S p e c i f i cs t u d i e sa r e a sf o l l o w s :B a s e do nt h et h e o r y o ft h e i d e a l s t r u c t u r e e l e m e n tm e t h o d ,t h r e e b a s i
7、 ce l e m e n t s f 6 ra n a l y z i n g s h i p h u l lu l t i m a t es t r e n g t ha r e l i s t e di nt h et h e s i s ,n a m e l yi d e a l i z e db e a m e l e m e n t s .i d e a l i z e dr e c t a n g u l a r p l
8、a t e e l e m e n t s a n d i d e a l i z e d s t i f f e n e d p l a t e e l e m e n t .W h a t ’s m o r e .s t i f f n e s so f t h e s et h r e ee l e m e n t sa n dt h ed e t a i l e dd e r i v a t i o no f t h ef o
9、r m u l aa r eg i v e n i nd e t a i li n t h e t h e s i s .T h r o u g h t h ee s t a b l i s h m e n t o fv a r i o u sf a i l u r e m o d e so ft h e e l e m e n ts t i f f n e s sm a t r i x ,c a l c u l a t i o np
10、r o g r a m f o r t h e a n a l y s i s o fc o m p i l e d .s h i p h u l l s t r u c t u r e u l t i m a t e s t r e n g t h i sB a s e d o nt h ep r o c e d u r e ,t h eu l t i m a t es t r e n g t ho fa s e r i e so f
11、 t y p i c a lb o xg i r d e rm o d e l s i sc a l c u l a t e d .T h e r e f o r e ,t h ea c c u r a c yo ft h er e s u l t so ft h ep r o c e d u r ei s c h e c k e d .T a k i n gi n t oa c c o u n tt h ec o m p l e x
12、i t yo ft h e h u l ls t r u c t u r e ,t h er e a l s h i pu l t i m a t e s t r e n g t ha n a l y s i so fo i lt a n k e r sa n d b u l kc a r r i e r si s c a r r i e do n .F u r t h e r m o r e ,as e to f s i m p l
13、i f i e dm e t h o do f c a l c u l a t i n gt h es h i ph u l lu l t i m a t es t r e n g t he f f e c t i v e l y .A c c o r d i n gt o t h ec o m p a r i s o no f p r o c e s ss o l u t i o n s .e x p e r i m e n t a
14、lr e s u l t sa n df i n i t ee l e m e n ts o l u t i o n s ,t h er a p i d i t y , s i m p l i c i t ya n d r e l i a b i l i t yo f t h ep r o g r a m i s f u l l y d e m o n s t r a t e d .T h e r e f o r e ,t h e m
15、e t h o d o f s t r e n g t h c h e c k a n d s t r e n g t ha s s e s s m e n t i ns h i ps t r u c t u r e si sa v a i l a b l e .b ys e n s i t i v i t yc a l c u l a t i o n ,s e v e r a lm a i np a r a m e t e r sw
16、h i c h i n f l u e n c et h eu l t i m a t es t r e n g t ho f s h i ps t r u c t u r e sa r ea n a l y z e dq u a l i t a t i v e .I n v e s t i g a t i n gt h e s e p a r a m e t e r so nt h es e n s i t i v i t vt ot
17、 h eu l t i m a t e s t r e n g t h o f t h e s h i p h u l l .a(chǎn) f u r t h e r i n f o r m a t i o n o nt h e h u l l d e s i g n w i l l b ep r o v i d e d .K e y w o r d s :u l t i m a t es t r e n g t h ,t h eI d e a
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