噪声与振动控制2019，Vol.39Issue(4)：36-39,58,5.DOI:10.3969/j.issn.1006-1355.2019.04.007
薄板结构中声场的计算研究
Research on Calculation of Sound Field in Thin Plate Structure
摘要
Abstract
The algorithm of sound field in the thin plate structures is studied, which has important theoretical reference value for the simulation software design of acoustic waveguide in the thin-walled tubes. Firstly, the kinetic equation of the two-dimensional spatial particles in different component directions is calculated by elastic strain. Secondly, in order to visually show the propagation of ultrasonic wave in the thin plate, the staggered grid finite difference of the particle’s kinetic equation is performed and the acoustic wave propagation is simulated with the MATLAB numerical analysis software. Combined with the snapshot of the wave field, the distribution of the sound field in the thin plate can be clearly shown, and the numerical simulation results are consistent with the actual results. It shows that the propagation process of the acoustic wave can be simulated correctly by this algorithm, which has provided a reliable theoretical basis for the design of the software.关键词
声学/薄板/应变/有限差分法/声波场Key words
acoustics/ thin plates/ strain/ finite difference method/ acoustic field分类
机械制造引用本文复制引用
吴冲,王子成..薄板结构中声场的计算研究[J].噪声与振动控制,2019,39(4):36-39,58,5.基金项目
国家重大科学仪器设备开发专项资金资助项目(2013YQ120347) （2013YQ120347）
