超重型载运平台车架与悬架系统结构仿真分析  

Structural Simulation Analysis of Frame and Suspension System of Super-heavy Load Carrier Platform

作　　者：秦箫 姜慧夫 周炜[1,2] 杜林森[1,2] 曹晋阳 QIN Xiao;JIANG Huifu;ZHOU Wei;DU Linsen;CAO Jinyang(Research Institute of Highway,Ministry of Transport,Beijing 100088,China;Key Laboratory of Operation Safety Technology on Transport Vehicles,Ministry of Transport,Beijing 100088,China)

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]交通运输部运输车辆运行安全技术交通行业重点实验室,北京100088

出　　处：《交通节能与环保》2024年第6期89-95,共7页Transport Energy Conservation & Environmental Protection

基　　金：交通运输部公路科学研究所(院)交通强国试点项目(2022-C305)。

摘　　要：本研究聚焦车架与悬架系统结构性能分析,利用CATIA软件构建某型超重型载运平台车架及悬架系统三维结构,并构建系统结构的有限元模型。基于该型车辆未来实际运用需求,选取了复杂作业过程中可能经历的冲击、制动、扭转等7类典型不利工况,对车辆的系统结构开展性能仿真分析,获取了多种复杂作业工况下的各部件应力情况,挖掘结构失效风险。仿真结果表明,在扭转工况下车架部分部件最大应力超过材料的屈服极限,且多见于横梁与其他部件焊接处,针对此类问题,提出对应的改进建议,构建了双层刚柔耦合复合型高承载车架与重型悬架系统,该系统具有良好的承载能力,并成功应用于百吨级应急运输车。This study focuses on the structural performance analysis of the frame and suspension system,and uses CATIA to construct the three-dimensional structural of the frame and suspension system of a certain type of super-heavy-duty transport platform,and constructs the finite element model of the system structure.Based on the future practical application requirements of this type of vehicle,seven types of typical unfavorable working conditions,such as impact,braking and torsion,which may be experienced during complex operation,are selected to carry out performance simulation analysis of the system structure of the vehicle,to obtain the stress situation of each component under a variety of complex operating conditions,and to explore the risk of structural failure.The simulation results show that the maximum stress of some parts of the frame under torsion exceeds the yield limit of the material,and it is mostly found in the welding place between the cross beam and other parts.In view of this kind of problems,corresponding improvement suggestions are put forward,and a double-layer rigid-flexible coupling composite high load-bearing frame and heavy-duty suspension system is constructed,which has good load-bearing capacity and is successfully applied to the over 100 tonne emergency transport vehicle.

关 键 词：超重载运输 应力分析 车架及悬架 结构性能 应急运输 

分 类 号：U463.33[机械工程—车辆工程]