1/4车体-梁体伸缩缝刚柔耦合系统研究  

RESEARCH ON RIGID-FLEXIBLE COUPLING SYSTEM OF 1/4 VEHICLE-BEAM EXPANSION JOINT

作　　者：高斌 王少华[1,2] 张露 GAO Bin;WANG ShaoHua;ZHANG Lu(Mechanical Engineering Research Institute,Southwest Jiaotong University,Chengdu 610031,China;Technology and Equipment of Rail Transit Operation and Maintenance Key Laboratory of Sichuan Province,Chengdu 610031,China)

机构地区：[1]西南交通大学机械学院,成都610031 [2]轨道交通运维技术与装备四川省重点实验室,成都610031

出　　处：《机械强度》2023年第2期488-493,共6页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51675450)资助。

摘　　要：运用RecurDyn多体动力学仿真平台在全钢载重子午线轮胎背景下提出一种新型车-梁伸缩缝刚柔耦合系统,利用该系统模拟1/4车体过伸缩缝的整个接触过程,分别以车体及梁体伸缩缝的动态响应与传统仿真结果对比分析。研究表明,新型耦合系统仿真波形与传统方法一致且该波形对耦合系统中两种影响因子响应灵敏,验证了耦合系统良好的接触动态特性;通过加强边梁与梁体的连接及桥梁端部结构可显著提高梁体接触稳定性,采用新型轮胎的车体过缝时不应超过80 km/h,该耦合系统为车-梁伸缩缝的联合动态仿真提供了一种行之有效的新方法。The new rigid-flexible coupling system for vehicle-beam expansion joints is proposed in the context of all-steel load-bearing radial tire by using the RecurDyn multi-body system dynamics simulation platform,the system is used to simulate the whole contact process of 1/4 car body through expansion joint,and the dynamic response of car body and beam body expansion joint is compared with the traditional simulation results.The results show that the simulation waveform of the new coupling system is consistent with the traditional method and the waveform is sensitive to the two influence factors in the coupling system,which verifies the good contact dynamic characteristics of the coupling system,the contact stability of the beam body can be improved by strengthening the connection between the side beam and the beam body and the end structure,the car with the new type of tire should not exceed 80 km/h when passing the seam.The coupling system provides a new and effective method for joint dynamic simulation of vehicle-beam expansion joint.

关 键 词：伸缩缝 刚柔耦合系统 振动响应 动力学 RECURDYN 

分 类 号：TH16[机械工程—机械制造及自动化]