Experimental and Numerical Investigations on Vibration Characteristics of a Loaded Ship Model  

作　　者：Pu Liang Ming Hong Zheng Wang 

机构地区：[1]School of Naval Architecture, Dalian University of Technology, Dalian 116024, China [2]Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai 200240, China

出　　处：《Journal of Marine Science and Application》2015年第3期234-243,共10页船舶与海洋工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No. 51079027）.

摘　　要：In this paper, the vibration characteristics of the structure in the finite fluid domain are analyzed using a coupled finite element method. The added mass matrix is calculated with finite element method （FEM） by 8-node acoustic fluid elements. The vibration characteristics of the structure in the finite fluid domain are calculated combining structure FEM mass matrix. By writing relevant programs, the numerical analysis on vibration characteristics of a submerged cantilever rectangular plate in finite fluid domain and loaded ship model is performed. A modal identification experiment for the loaded ship model in air and in water is conducted and the experiment results verify the reliability of the numerical analysis. The numerical method can be used for further research on vibration characteristics and acoustic radiation problems of the structure in the finite fluid domain.

关 键 词：loaded ship model vibration characteristics finite element method （FEM） added mass matrix natural frequency modal identification finite fluid domain 

分 类 号：U441[建筑科学—桥梁与隧道工程] TH113.1[交通运输工程—道路与铁道工程]