%0 Journal Article
%T COUPLED ANALYSIS OF NONLINEAR INTERACTION BETWEEN FLUID AND STRUCTURE DURING IMPACT<br>二维弹性结构入水冲击过程中的流固耦合效应
%A Lu Chihua
%A He Yousheng
%A <br>卢炽华
%A 何友声
%J 力学学报
%D 2000
%I 
%X This paper presents a method for analyzing the hydroelastic interaction during the impact of a structure with water. The completely coupled equation for fluid flow and structural response is solved by the boundary element method (BEM) for the former and by the finite element method (FEM) for the latter. During the impact, the nonlinear free surface boundary condition is satisfied, including proper treatment of the jet, and the full interaction with the linear elastic - structure is taken into account. The convergence of the code is verified by different fluid domain and mesh sizes and different time steps. The accuracy of the code is confirmed by comparing the present results with published data. Various examples of a V--shape structure impacting verticajly upon water are provided. The numerical result from this coupled analysis shows that the hydroelasticity has different effects on the dynamic response of the body with different deadrise angles, which may have some important implications for structural design.
%K impact upon water
%K fluid-structure interaction Received 30 March 1998
%K revised 29 July 1999<br>入水冲击
%K 流固耦合
%K 二维弹性结构
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=012572CA76A15B4C&yid=9806D0D4EAA9BED3&vid=9971A5E270697F23&iid=0B39A22176CE99FB&sid=28F8B56DB6BEE30E&eid=B0EBA60720995721&journal_id=0459-1879&journal_name=力学学报&referenced_num=6&reference_num=4