基于ATV的内燃机结构声辐射预测技术研究  

Research on Structural Acoustic Radiation Prediction for ICE Based on ATV Technology

作　　者：张保成[1] 左正兴[2] 冯慧华[2] 廖日东[2] 

机构地区：[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

出　　处：《内燃机工程》2005年第5期39-42,共4页Chinese Internal Combustion Engine Engineering

摘　　要：基于声传递向量(ATV)的概念,研究探讨了ATV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,利用ATV技术,计算得到了整机结构辐射声功率、外场域点声压(级)、结构面板声学贡献、辐射效率等声学响应。在内燃机研制过程中,基于振动和声压域之间振-声关系的ATV技术,是快速进行振-声响应预测的一个有效方法。Based on the acoustic transfer vector concept （ATV）, the application approach to structural acoustic radiated prediction using the ATV technology for I. C. engine was studied. Taking a four-cylinder diesel engine as an example, acoustic response such as the entire engine＇s radiation power, the field point sound pressure level and the panel acoustic contribution, radiation efficiency etc. was calculated. It shows that the ATV technology, based on the vibro-acoustic relationship between the engine vibrations and the acoustic pressure field, is an effective approach to quickly evaluate the vibro-acoustic response in the engine development process.

关 键 词：内燃机 结构声辐射 噪声 ATV 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]