基于轮轴横向力的有轨电车独立车轮转向架心盘偏置距离研究  

Study on the Offset Distance of Center Plate in Tram Independent Wheel Bogie Based on Wheelset Lateral Force

作　　者：王刚 周业明 任利惠 张让 WANG Gang;ZHOU Yeming;REN Lihui;ZHANG Rang(Institute of Rail Transit,Tongji University,201804,Shanghai,China;不详)

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804 [2]中车青岛四方机车车辆股份有限公司,青岛266111

出　　处：《城市轨道交通研究》2021年第8期176-180,共5页Urban Mass Transit

摘　　要：针对具有心盘偏置结构的独立轮对转向架建立了两模块有轨电车通过曲线时的车体受力分析模型,并得出准静态平衡方程。通过横向力学方程,推导了轮轴横向力与心盘偏置距离的关系,并应用动力学仿真验证其准确性。根据轮轴横向力标准,提出了轮轴横向力评价指标的概念。基于整车轮轴横向力评价指标最小原则推导出心盘的临界偏置距离。仿真分析了心盘处于不偏置、临界偏置及过偏置状态下的动力学性能。仿真结果表明:当心盘处于临界偏置距离时,有轨电车的曲线通过性能有所提高;当心盘处于过偏置状态时,有轨电车曲线通过性能显著下降。For an independent wheel bogie with offset center plate structure,the vehicle body force analysis model for two-module tram passing curve is established,and quasi-static equilibrium equation is obtained.With transverse mechanical equations,the relationship between wheelset lateral force and center plate offset distance is derived and the accuracy is verified by dynamics simulation.According to wheelset lateral force standards,the concept of wheelset lateral force evaluation index is proposed.Based on the principle of minimum wheelset lateral force evaluation index,the critical offset distance of the center plate is derived.The dynamics performance of different offset distances of center plate state is analyzed.Simulation results show that when center plate is at critical offset distance,tram passing curve performance is improved to certain extent;when center plate is offset over critical value,tram passing curve performance falls notably.

关 键 词：有轨电车 独立车轮转向架 心盘偏置距离 轮轴横向力 

分 类 号：U270.331[机械工程—车辆工程]