基于边界元法的某客车变速器箱体噪声分析  

Noise Analysis of Transmission Housing of Coach Based on Boundary Element Method

作　　者：李友真[1] 李彦保[2] 于柱春[1] 赵立辉 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽省合肥市230009 [2]合肥合肥工业大学交通运输工程学院,安徽省合肥市230009 [3]首钢东星集团工程机械零件制造部,山东省烟台市264006

出　　处：《农业装备与车辆工程》2013年第9期52-55,76,共5页Agricultural Equipment & Vehicle Engineering

摘　　要：根据二维图纸,采用SolidWorks三维造型软件,建立某型客车变速器箱体的三维实体模型。采用HyperWorks有限元分析软件,建立变速器箱体的有限元模型,并对其进行自由模态分析。以发动机的扭转激励为激励源,对变速器箱体进行频率响应分析。采用声学软件Virtual.Lab,运用边界元法(BEM),对该变速器箱体进行辐射噪声仿真分析,得到声辐射敏感区域,为减振降噪工作提供依据。According to the 2D model, using the 3D modeling software SolidWorks, the transmission housing 3D entity model is built. The FEM model of the transmission housing is built, using the finite element analysis software HyperWorks, further- more, the free modal is analyzed. Taking the engine reverse incentive as the excitation source, the frequency response analysis is carried out on the transmission housing. Using boundary element method and the acoustic software Virtual Lab, the simulation and analysis of noise radiation of the transmission housing is carried out, and the acoustic radiation sensitive area is got. Re- search provides the basis for vibration noise reduction work.

关 键 词：变速器箱体 频响分析 边界元法 声辐射 

分 类 号：U463.212[机械工程—车辆工程]