The interaction of an underwater explosion bubble dynamics and a floating structure#br#
WANG Jia-xia 1 ZONG Zhi 1，2 ZHOU Li 1 JIANG Ming-zuo3
1. School of Naval Architecture Dalian University of Technology, Dalian 116024；
2. State Key Laboratory of Structural Analysis for Industrial Dalian University of Technology, Dalian 116024；
3. School of Control Science and Engineering Dalian University of Technology, Dalian 116024
The evolution of underwater explosion bubble beneath floating structure is numerically simulated using three-dimensional (3D) boundary integral method (BIM) in an inviscid, incompressible and irrotational flow. The effect of free surface on bubble dynamics is also considered. The present method is well validated by comparing the numerical simulations with the experimental results. For free-floating structure, the distance between bubble and free surface, distance between bubble and structure and two dynamic responses: fixed and rigidly moving are separately investigated to research the interaction of bubble, floating structure and free surface. Their influence on bubble dynamics, pressure on the structure and free surface are especially concerned.
Key words: underwater explosion bubble; boundary integral method; floating structure; rigid body motion
王加夏 1,宗智 1，2，周力 1，姜明佐 3. 水下爆炸气泡与浮体结构相互作用的研究[J]. 振动与冲击, 2016, 35(12): 41-49.
WANG Jia-xia 1 ZONG Zhi 1，2 ZHOU Li 1 JIANG Ming-zuo3 . The interaction of an underwater explosion bubble dynamics and a floating structure#br#. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(12): 41-49.
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