驾驶室结构振动及其声固耦合噪声响应分析  

Analysis of Cab Structure Vibration and its Acoustic Coupling Noise Response

作　　者：刘鹏[1] 刘更[1] 惠巍[1] 

机构地区：[1]西北工业大学机电学院,西安710072

出　　处：《机械科学与技术》2006年第7期856-859,共4页Mechanical Science and Technology for Aerospace Engineering

摘　　要：利用有限元分析软件ANSYS和声学分析软件SYSNO ISE对卡车驾驶室的振动与内部声场耦合做了数值计算分析研究。介绍了振动频响分析方法,动力学计算与声学边界元模型耦合的具体步骤。通过计算分析,分别研究了驾驶室结构的声固耦合模型与非耦合模型对室内声场的影响,从而找出在不同的壁板厚度条件下,声固耦合作用对室内噪声的影响,以及驾驶室内声场的变化规律。The numerical calculation and analysis for the coupling of vibration and interior sound field of a truck cab has been carried out by using the FEM and the acoustic analysis software. The procedures for coupling dynamic calculation with the boundary element method （BEM） to analyze vibro-acoustic characters of the cab are presented. The effects of the plate thickness around the cab on interior sound pressure levels are discussed by using structural-acoustic coupling models and noncoupling models.

关 键 词：驾驶室 振动 声学 有限元 边界元 声固耦合 

分 类 号：TH113[机械工程—机械设计及理论]