摘要
提出了一种铝合金挤压型材车体断面型腔快速设计方法。根据车体断面的理论设计方法,求出车体、转向架、轮缘、踏面,受电弓和受流器等的横向和竖向的偏移量,并通过线性叠加的方法得到车体最大外轮廓的可设计区域;通过计算投影和曲线拟合的方法得到车体型腔的内轮廓;对型腔进行截取、分段,并对型腔内筋板的布置进行设计;利用TCL/TK语言对有限元前处理软件Hypermesh进行二次开发,建立车体结构断面型腔快速设计程序,并以车体一阶垂弯频率为评价指标对设计的车体截面进行评价。证明了该方法的有效性和工程化运用可行性。
A quick design method of aluminum alloy extrusion train body cross section is proposed.According to the theoretical design of car body cross section,the horizontal and vertical displacements of car body,bogie,wheel rim,tread part,pantograph part and collector shoes are calculated,and the designable region of the vehicle maximum outer contour is obtained by using linear superposition method.On the basis of the vehicle outer contour,the internal contour is obtained by calculating the projection and curve fitting,then,the cavity is intersected and segmented,the cavity plate layout is designed.Finally,the TCL/TK language is used to finish the secondary development of the finite element pre-processing software Hypermesh and build up a program for quick design of the cavity of car body cross section.The value of the first order vertical bending frequency is used as the evaluation index for the feasibility of the body cross section design.The efficiency and the feasibility of this method is verified by practical application.
作者
何春天
阳光武
邹晓宇
HE Chuntian;YANG Guangwu;ZOU Xiaoyu(State Key Laboratory of Traction Power,Southwest Jiaotong University,610031,Chengdu,China)
出处
《城市轨道交通研究》
北大核心
2019年第8期103-107,共5页
Urban Mass Transit
基金
国家重点研发计划项目(2016YFB1200601-A01)
国家自然科学基金项目(51505390)
关键词
高速铁路列车
铝合金车体
车体断面
型腔快速设计
highspeed railway train
aluminum alloy car body
car body cross section
train cavity quick design
