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- Title
Research on high frequency vibro-acoustic response of typical structure based on finite element method.
- Authors
Wang, C.; Chen, H. B.; Wang, Y. Y.; Li, K. J.
- Abstract
Finite element method (FEM) is used to calculate coupling loss factor (CLF), which is an important parameter in statistical energy analysis(SEA). The results are in good agreement with the one of wave method, and the relative error of the two methods is calculated. The influence of side length of the plate, internal loss factor (ILF), concentrated mass and boundary conditions on the calculation accuracy of CLF is studied by FEM. It is found that, with the increase of the side length the results of CLF become more reliable. In the low frequency band, the influence of concentrated mass and boundary conditions on CLF is obvious, while the influence can be neglected in the high frequency band. In order to ensure the accuracy of CLF, ILF should be much larger than CLF, but ILF can't be increased indefinitely.
- Subjects
FINITE element method; LOSS factor (Electricity); STATISTICAL energy analysis; VIBRATION (Mechanics); BOUNDARY value problems
- Publication
Vibroengineering Procedia, 2016, Vol 10, p436
- ISSN
2345-0533
- Publication type
Article