摘要
以轮轨表面粗糙度为激励,利用车辆-轨道多刚体耦合振动模型计算轮轨作用力。利用有限元理论建立轮对的有限元分析模型,以轮轨作用力为激励进行轮对的振动频响分析。以振动响应分析结果作为边界条件,利用边界元理论建立轮对边界元声学分析模型,对轮对振动声学特性进行了计算分析。其结果与公认的模型和软件的计算结果相比具有较好的一致性,证明本文做法的正确性。
The wheel/rail surface roughness is used as responses and the interaction force of wheel/rail is calculated by the model of Vehicle-Track multi-rigid body coupling vibration.The finite element analysis model of vehicle wheel is established by using the theory of finite element method.The interaction force of wheel/rail is used as responses and the frequency response analysis is calculated.The vibration characters from the finite element analysis is used as boundary conditions and a acoustic boundary element model of vehicle wheel is constructed by using the theory of boundary element method,the sound radiation of vehicle wheel is calculated.The results campared to the results of acknowledged model and software is accordant,so the correctness of this method is proved.
出处
《噪声与振动控制》
CSCD
北大核心
2007年第4期99-102,共4页
Noise and Vibration Control
基金
辽宁省中青年学科带头人资助项目(辽教发[2001]44号)
关键词
声学
噪声
轮对
振动
有限元
边界元
acoustics
noise
vehicle wheel
vibration
FEM
BEM
