Structural-acoustic coupling analysis of a stiffened plate based on FEM-MODENA

被引：0

作者：

Yu, Shi-Jia ^{[1
]}

Zhang, Peng ^{[1
]}

Li, Yan-Bin ^{[2
]}

Wu, Shao-Qing ^{[1
]}

Fei, Qing-Guo ^{[1
,2
]}

Han, Xiao-Lin ^{[1
]}

机构：

[1] Department of Engineering Mechanics, Southeast University, Nanjing,210096, China

[2] School of Mechanical Engineering, Southeast University, Nanjing,211189, China

来源：

Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2017年 / 30卷 / 02期

关键词：

Rectangular plate - Architectural acoustics - Approximation algorithms - Vibration analysis;

D O I：

10.16385/j.cnki.issn.1004-4523.2017.02.012

中图分类号：

学科分类号：

摘要：

Modal Energy Analysis (MODENA) is a new method which is proposed to solve the structural-acoustic coupling analyses. An algorithm that integrates finite element method (FEM) and MODENA is proposed to carry out the structural-acoustic coupling analyses of complex dynamic systems. Firstly, the accuracy and efficiency of the algorithm is proved by a regular rectangular plate coupled with a parallelepiped cavity. Then the proposed algorithm is applied to a stiffened plane-cavity coupling system. Results show that the FEM-MODENA can carry out the structural-acoustic analyses with sufficient accuracy compared with the FEM-FEM results. Meanwhile, the algorithm can still provide a good approximation about the energy response of structure and acoustic domain when the modes in specific frequency range are taken into account. © 2017, Nanjing Univ. of Aeronautics an Astronautics. All right reserved.

引用

页码：262 / 269