重卡驾驶室的声学灵敏度分析  

Acoustic Sensitivity Analysis about Truck Cab

作　　者：皮晓明[1] 董华东 

机构地区：[1]宜春学院理工学院,江西宜春336000 [2]佳景科技有限公司,安徽芜湖241009

出　　处：《汽车零部件》2009年第7期59-60,共2页Automobile Parts

摘　　要：车身的声学灵敏度是指施加于车身的单位力在车内产生的声压,是衡量车辆NVH特性的一种很有效的指标。以某重卡驾驶室为研究对象,建立了其声固耦合系统的有限元模型,通过对驾驶室悬置点施加单位激励,绘制了人耳旁的声压响应曲线图,获得一些驾驶室的结构-声学特性。Acoustic sensitivity of a vehicle body was defined as the interior sound pressure due to a unit force applied to the body, which is a very useful characteristic for evaluating a vehicle NVH per（ormance. Fluid-structure interaction （FSI） model of a cab system was built. The graph of sound pressure response to ears was drawn by putting a unit power on the suspension attachment position. Some structural-acoustic characteristic of the cab was obtained.

关 键 词：声学灵敏度 声压响应 NVH 

分 类 号：U461.99[机械工程—车辆工程]