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《Journal of Ship Mechanics》 2007-02
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Whipping response analysis of slender stiffened cylindrical shell subjected to underwater explosion with bubble pulse

DONG Hai1,LIU Jian-hu2,WU You-sheng2(1 School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 20030,China;2 China Ship Scientific Research Center,Wuxi 214082,China)  
The underwater explosion induced whipping responses of the slender cylindrical shell of a submarine is one of the major factors of the structural damage,which may eventually result in loss of the ship's life.In order to investigate the influence of different relative configurations of the explosion on the whipping responses,the cylindrical shell is simplified as a beam with un-uniform cross sections in this paper,and the Double Asymptotic Approximation method(DAA) is employed to describe the coupling effect of the dynamic motions of the structure and the transient fluid field.The contributions of the first bubble pulse produced by the underwater explosion to the whipping responses of the structure are examined in terms of the dynamic bending moment of the beam.The variations of the bending moment with respect to the different dive depth,different distance and attack angle of the explosive relative to the submarine target are investigated.The results thus obtained may help to understand the underwater explosion induced dynamic behavior of a submarine,and to improve the shock-resistant design of the ship structure.
【CateGory Index】: O383.1
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 LI Yujie ZHANG Xiaoci WU Yousheng (China Ship Scientific Research Center) CHEN Qifu (Harbin Engineering University);Whipping Response of Ship Hull induced by Underwater Explosion Bubble[J];Shipbuilding of China;2001-03
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 XIAO Chuan,SONG Pu,LIANG Anding(Xi′an Modern Chemistry Research Institute,Xi′an 710065,China);Research Development of Underwater Explosion Mechanism[J];Chinese Journal of Explosives & Propellants;2006-06
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8 YAO Xiong-liang,LIU Dong-yue,ZHAO Xin,ZHANG A-man,LIU Xin-shuai(School of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China);Research on anti-shock performance of power units on ships with numerical method[J];Transducer and Microsystem Technologies;2007-12
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1 Wu You-sheng Zhang Xiao-cim Sima Can Cui Wei-cheng Lin Ji-ru (China Ship Scientific Research Center, Wuxi 214082,China);Research and Development Activities on Ship Hydroelasticity in China[A];[C];2003
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【Secondary Citations】
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1 ZHANG Xiaoci; LI Yujie; ZHAO Benli (China Ship Scientific Research Center);PRESSURE FIELD AND DYNAMIC EFFECT OF SHIP STRUCTURE PRODUCED BY UNDERWATER SHOCK AND EXPLOSION BUBBLE[J];SHIPBUILDING OF CHINA;1997-04
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