A fast and high accuracy calculation method for engine radiated noise
Feng Renhua 1 Zhang Daming 2 Deng Banglin 1 Liu Jingping 1 Fu Jianqin 1
1. Research Center for Advanced Powertrain Technology, Hunan University, 410082 Changsha, China；2. Department of Industrial Technology, California State University, Fresno, CA 93740-8002, USA
Abstract：In order to solve the engine radiated noise problems accurately and efficiently, a Matlab program was developed in this paper based on the surface vibration velocity method to calculate the radiated sound power. Several numerical examples including simple plate, engine head cover and engine powertrain were used to compare accuracy and efficiency among boundary element method, fast multipole boundary element method and the Matlab program software. Results show that for the engine head cover and engine powertrain radiated sound power analysis problems, the Matlab program developed in this paper could reduce the calculation time to 1/123 or 1/108 comparing to fast multipole boundary element method, and 1/25 or 1/141 comparing to boundary element method, while keeping the high calculation accuracy.
收稿日期: 2013-05-15
引用本文:
冯仁华 ;张大鸣;邓帮林;刘敬平;付建勤. 一种高效的发动机辐射噪声计算方法研究[J]. , 2014, 33(18): 198-203.
Feng Renhua Zhang Daming Deng Banglin Liu Jingping Fu Jianqin . A fast and high accuracy calculation method for engine radiated noise. , 2014, 33(18): 198-203.
2014, Vol. 33 
