悬挂式单轨车辆导向力矩优化研究  

Optimization of Steering Torque for Suspended Monorail Vehicle

作　　者：唐飞 李耀 朱福成 冉龙 TANG Fei;LI Yao;ZHU Fucheng;RAN Long(Technology Department,Chongqing CRRC Railway Vehicles Co.,Ltd.,Chongqing 401133,China;Research Institute of Rail Transit,Chongqing Jiaotong University,Chongqing 400074,China;Technology Department,China Railway Third Engineering Group Bridge Tunnel Engineering Co.,Ltd.,Chengdu,Sichuan 610036,China)

机构地区：[1]重庆中车长客轨道车辆有限公司技术部,重庆401133 [2]重庆交通大学轨道交通研究院,重庆400074 [3]中铁三局集团桥隧工程有限公司技术部,四川成都610036

出　　处：《机车电传动》2020年第3期137-141,152,共6页Electric Drive for Locomotives

摘　　要：从车辆设计及系统动力学参数优化的角度出发探索优化悬挂式单轨车辆导向性能的方法。首先对悬挂式单轨车辆结构进行分析,在此基础之上建立悬挂式单轨车辆拓扑构型关系和基于多体动力学的动力学仿真模型;然后对悬挂式单轨车辆系统动力学参数进行灵敏度分析,筛选出对悬挂式单轨车辆导向力矩影响显著的参数;最后以影响显著的系统动力学参数作为优化设计变量,以车辆曲线通过性能和平稳性作为优化约束条件,采用NSGA-Ⅱ遗传算法作为优化算法,运用多体动力学软件(ADAMS)与多目标优化软件(modeFRONTIER)联合对悬挂式单轨车辆导向力矩进行优化分析,并对优化结果的有效性和可行性进行验证。优化结果表明:在满足给定约束条件下,当空气弹簧垂向刚度、空气弹簧横向刚度、走行轮垂向刚度、走行轮侧偏刚度、导向轮径向刚度达到最优解时,悬挂式单轨车辆的导向力矩降低了26.57%~38.57%,悬挂式单轨车辆的导向性能得到了有效提高。From the perspective of vehicle design and optimization of system dynamics parameters, a method for optimizing the guidance performance of suspended monorail vehicles was explored. Firstly, the structure of the suspended monorail vehicle was analyzed. On this basis, the suspension monorail vehicle topological configuration relationship and dynamic simulation model based on multi-body dynamics were established. Then, the sensitivity analysis of the system dynamics parameters of the suspended monorail vehicle was performed, and the parameters that have significant influence on the steering torque of the suspended monorail vehicle were selected. Finally, the influence of significant system dynamics parameters was taken as the optimal design variables, the vehicle curve passability and stationarity were taken as the optimization constraints, the NSGA-Ⅱ genetic algorithm was used as the optimization algorithm, the multi-body dynamics software(ADAMS) and multi-objective optimization software(modeFRONTIER) were combined to optimize the steering torque of the suspended monorail vehicle, and the effectiveness and feasibility of the optimization results were verified. The optimization results show that under the given constraints, when the vertical stiffness of the air spring, the transverse stiffness of the air spring, the vertical stiffness of the running wheel, the side-bias stiffness of the running wheel, and the radial stiffness of the guide wheel reached the optimal solution, the steering torque of the suspended monorail vehicle was reduced by 26.57%~38.57%, and the guiding performance of the suspended monorail vehicle has been effectively improved.

关 键 词：悬挂式单轨车辆 导向力矩 动力学参数 敏感性分析 参数优化 仿真 城市轨道交通 

分 类 号：U232[交通运输工程—道路与铁道工程]