1. The hybrid method for vibro-acoustic problem of the complex structure.
- Author
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YAO Xiong-liang, WANG Xian-zhong, SUN Long-quan, and PANG Fu-zhen
- Subjects
STRUCTURAL analysis (Engineering) ,FINITE element method ,STATISTICAL energy analysis ,ANALYSIS of variance ,VIBRATION of buildings - Abstract
Based on wave theory, the analysis model of complex structure is developed by combining with statistical energy analysis and finite element method. The reciprocity relationship for diffuse field is subsequently employed to deduce a hybrid FE-SEA method, which realizes the coupling calculation between stiffness component and flexible one. Then the vibro-acous- tic response of complex structure is obtained. Transmission loss of plate is numerical calculated. Through the comparison with results from traditional SEA method and mass law curve, the effectiveness and accuracy of the current method is validat- ed. Meanwhile, the sound radiation of cylindrical shell model is calculated, the result of which is proved to be coincident with corresponding test. Also variance analysis is preceded. It is demonstrated that the hybird method can be applied to practical project for its effectiveness and accuracy in the calculation of complex structure. [ABSTRACT FROM AUTHOR]
- Published
- 2011