基于ATV的内燃机结构声辐射预测技术研究.pdf

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第 26 卷第 5 期内燃机工程 Vol. 26 No. 5
2005 年 10 月 Chinese bustion Engine Engineering Oct. 2005
文章编号:1000 - 0925 (2005) 05 - 039 - 04 260098
基于 ATV 的内燃机结构声辐射预测技术研究
张保成1 ,左正兴2 ,冯慧华2 ,廖日东2
( 1. 中北大学车辆与动力工程系,太原 030051 ;2. 北京理工大学机械与车辆工程学院)
Research on Structural Acoustic Radiation Prediction
for ICE Based on ATV Technology
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ZHANG Bao cheng1 , ZUO Zheng xing2 , FENG2 Hui hua2 , L IAO Ri dong2
(1. Department of Vehicle and Power Engineering ,Nort h University of China , Taiyuan 030051 ,China ;
2. School of Mechanical and Vehicular Engineering ,Beijing Institute of Technology)
Abstract :Based on t he acoustic transfer vector concept (A TV) , t he application approach to struct ural
acoustic radiated prediction using t he A TV technology for I. C. engine was st udied. Taking a four cylinder
diesel engine as an example , acoustic response such as t he entire engine’s radiation power , t he field point
sound pressure level and t he panel acoustic contribution , radiation efficiency etc. was calculated. It shows
t hat t he A TV technology , based on t he vibro acoustic relationship between the engine vibrations and the a
coustic pressure field , is an effective approach to quickly evaluate t he vibro acoustic response in the engine
development process.
摘要:基于声传递向量(A TV) 的概念,研究探讨了 A TV 技术在内燃机结构辐射噪声仿真
预测上的应用方法和途径。以某四缸柴油机为例