城市轨道交通车辆锥形弹簧竖向静态刚度计算模型设计研究  

Design and Study Calculation Model of Conical Spring Vertical Static Stiffness of Urban Rail Transit Vehicles

作　　者：陈清化 程海涛[2] 戚壮 叶特[2] 邓爱喜[1] CHEN Qinghua;CHENG Haitao;QI Zhuang;YE Te;DENG Aixi(Hu'nan Vocational College of Railway Technology,412006,Zhuzhou,China;不详)

机构地区：[1]湖南铁路科技职业技术学院,株洲412006 [2]株洲时代新材料科技股份有限公司,株洲412007 [3]石家庄铁道大学机械工程学院,石家庄050043

出　　处：《城市轨道交通研究》2020年第12期41-45,61,共6页Urban Mass Transit

基　　金：湖南省自然科学基金项目(2020JJ7053);湖南省教育厅科研项目(19C1221);国家自然科学基金项目(11702179)。

摘　　要：基于试验数据,采用多项式拟合方法确立轨道交通车辆用辅助弹簧橡胶的静弹剪模数及弹性模量计算公式;结合力学理论及轨道车辆锥形弹簧的特点,确立基于橡胶参数及产品结构参数的锥形弹簧竖向刚度理论计算公式。通过随机选取锥形弹簧产品,进行理论公式计算、有限元仿真分析计算、产品试验的对比验证。验证结果说明,所确定的基于产品结构参数和橡胶参数的理论计算公式在锥形弹簧线性变形阶段具有较好的计算精度,可用于锥形弹簧设计开发阶段竖向刚度初步计算。Based on test data,polynomial fitting method is used to establish the theoretical formula for calculating the static spring shear modulus and elastic modulus of the auxiliary spring rubber for rail transit vehicles.Combining mechanics theory and the characteristics of rail vehicle conical spring,the calculation formula about the vertical stiffness of the spring based on the rubber parameters and product structure parameters is established.By randomly selecting conical spring products,the theoretical formula calculation,finite element simulation analysis and calculation,product test are carried out for comparative verification.The results show that the established theoretical calculation formula based on product structure parameters and rubber parameters has a good precision in the linear deformation stage of the conical spring.The theoretical calculation formula can be used for preliminary calculation of vertical stiffness at conical spring design development phase.

关 键 词：城市轨道交通 车辆 锥形弹簧 竖向刚度 参数计算 

分 类 号：U270.331.4[机械工程—车辆工程]