动车组车体截面轮廓对车体模态频率影响规律研究  

Modal Frequency Rule with the Section Parameters of EMU Bodywork

作　　者：贾尚帅[1] 李明高[1] 张军[2] 

机构地区：[1]唐山轨道客车有限责任公司,河北唐山063035 [2]大连交通大学载运工具先进技术研究中心,辽宁大连116028

出　　处：《铁道机车车辆》2016年第3期43-45,50,共4页Railway Locomotive & Car

基　　金：中国铁道总公司项目资助(2014J004-O);牵引动力国家重点实验室开放课题资助(TPL1402)

摘　　要：动车组车体结构模态是影响车辆乘坐舒适度的主要因素之一,车体结构模态须满足相关标准要求。建立某城际动车组车体参数化有限单元模型,计算车体模态,分析车体底架、侧墙、顶板总厚度及车体宽度、高度对车体模态的影响。通过车体截面轮廓参数对车体模态频率的影响规律分析对车体截面进行修改,得到理想的车体结构,提高车体模态频率使其满足相关标准要求。The bodywork modal frequencies have the significant effect on carborne, the modal frequencies of carbody should meet the standard request. A finite element model of EMU bodywork is established, the hodywork modals are calculated, and the change rules of modal frequencies with the bottom thicknesses, the side wall thicknesses, top plate thicknesses, vehicle heights and vehicle widths are analyzed and generalized. Basing on the change rules of modal frequencies, the section parameters are revamped, the modal frequencies of bodywork are increased, the relative standards that the frequency of first order bending mode is satisfied.

关 键 词：动车组 有限元法 车体截面 模态频率 

分 类 号：U266.32[机械工程—车辆工程]