摘要
本文采用三次Ｂ样条边界单元计算振动体的三维稳态声辐射。实际计算表明：采用样条边界元可获得较好的数值计算结果。此外，本文在计算声场内点声压的Ｈｅｌｍｈｏｌｔｚ边界积分公式的基础上，导出了计算声场内点质点振速和声强的边界积分公式。文中还给出了应用本文方法计算的算例结果。
This paper deals with the spline boundary element method for calculating three dimensional steady sound radiation of vibration objects. On the basis of Helmholtz equation, the boundary integration equations for calculating the particle vibration vilocity and the sound intensity in the acoustic field have been developed. The calculation results show the effectiveness of the method presented.
出处
《振动与冲击》
EI
CSCD
北大核心
1996年第2期28-32,共5页
Journal of Vibration and Shock
基金
高等学校博士学科点专项科研基金
