Journal of Shanghai Jiao Tong University ›› 2016, Vol. 50 ›› Issue (03): 456-459.

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Dynamic Response Analysis for Landing Collision of a New Underwater Lifting Device

HU Yongli1,YIN Hanjun2,WANG Shengwei1,YAO Baoheng1,LIAN Lian1   

  1. (1. Institute of Oceanology, State Key Laboratory of Ocean Engineering, Cooperation and Innovation Center for Marine Science and Technology of Qingdao, Shanghai Jiaotong University, Shanghai 200240, China; 2. Offshore Oil Engineering Co. Ltd., Tianjin 300000, China)
  • Received:2015-01-26 Online:2016-03-28 Published:2016-03-28

Abstract: Abstract: The dynamic equation for collision was established and solved by using the central difference method. Structural dynamic responses for landing collision of a new underwater lifting device supporting an operationtype ROV (Remote Operated Vehicle) were studied by using numerical simulation. The whole velocity, effective stress, elastic strain, plastic strain and the second collision in the collision course were analyzed. By comparing the simulation result of five common landing conditions, the influence of landing velocity on structural dynamic response was analyzed, providing a theoretical basis for structure design and load selection of underwater lifting device.

Key words: Key words: underwater lifting device, numerical simulation, second collision, structural dynamic response

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