噪声与振动控制2017，Vol.37Issue(6)：90-93,125,5.DOI:10.3969/j.issn.1006-1355.2017.06.018
复杂板件的隔声量仿真方法
Simulation Method of Sound Insulation for Complex Panels
赵蔷薇 1贾尚帅 1吴宏 2隋富生2
作者信息
- 1. 中车唐山机车车辆有限公司技术研究中心,河北 唐山 063035
- 2. 声学研究所 中国科学院大学,北京 100190
- 折叠
摘要
Abstract
A simulation analysis method based on frequency division is proposed. Simulation analysis of the sound insulation for complex panels is done by using this method. The accurate simulation results of sound simulation for the complex panels are obtained. In the intermediate frequency region, considering the boundary condition and loss factor, the FEM method is used for the simulation analysis. While in the low frequency region below the first-order natural frequency, which is the stiffness control region, the equivalent method is adopted for the simulation. To raise the computational efficiency in the high frequency region, the SEA method is applied. The simulation results of the overall sound insulation in the whole frequency range are all in good agreement with the experimental results, which verifies the validity of the frequency division method.关键词
声学/复杂板件/分频段/有限元法/等效法/统计能量法Key words
acoustics/complex panels/frequency division/finite element method/equivalent method/statistical energy method (SEA)分类
机械制造引用本文复制引用
赵蔷薇,贾尚帅,吴宏,隋富生..复杂板件的隔声量仿真方法[J].噪声与振动控制,2017,37(6):90-93,125,5.
