Numerical Analysis of a Blocking Mass Attenuating Wave Propagation

Xianzhong Wang; Xiongliang Yao; Qiangyong Wang; Shuai Lv

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Numerical Analysis of a Blocking Mass Attenuating Wave Propagation

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Based on wave theory,blocking mass impeding propagation of flexural waves was analyzed with force excitation applied on a ship pedestal.The analysis model of a complex structure was developed by combining statistical energy analysis and the finite element method.Based on the hybrid FE-SEA method,the vibro-acoustic response of a complex structure was solved.Then,the sound radiation of a cylindrical shell model influenced by blocking mass was calculated in mid/high frequency.The result shows that blocking mass has an obvious effect on impeding propagation.The study provides a theoretical and experimental basis for application of the blocking mass to structure-borne sound propagation control.

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《船舶与海洋工程学报（英文版）》 |2011年第4期|490-494|共5页
作者
Xianzhong Wang; Xiongliang Yao; Qiangyong Wang; Shuai Lv;
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作者单位

School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;

School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;

Wuhan Second Ship Design and Research Institute, Wuhan 430064, China;

School of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;

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Numerical Analysis of a Blocking Mass Attenuating Wave Propagation

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