独立旋转车轮转向架的自动对中实现方法  

Implementation Method of the Self-centering Ability for Independently Rotating Wheel Bogie

作　　者：杨超[1,2] 李稳[3,4] 徐宁 杨广雪[1] YANG Chao;LI Wen;XU Ning;YANG Guangxue(School of Mechanical,Electronic and Control Engineering,Beijing Jiaotong University,Beijing 100044;Key Laboratory of Vehicle Advanced Manufacturing,Measuring and Control Technology of Ministry of Education,Beijing Jiaotong University,Beijing 100044;CRRC Changchun Railway Vehicles Com.,LTD.,Changchun 130062;Institute of Rail Transit,Tongji University,Shanghai 201804)

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044 [2]北京交通大学载运工具先进制造与测控技术教育部重点实验室,北京100044 [3]中车长春轨道客车股份有限公司,长春130062 [4]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《机械工程学报》2023年第8期174-180,共7页Journal of Mechanical Engineering

基　　金：国家自然科学基金(52205085,11790281);中国国家铁路集团有限公司科技研究开发计划(P2021J003);国家重点研发计划(2021YFB3400703-06);中央高校基本科研业务费专项资金(2021RC248)资助项目。

摘　　要：为了使独立旋转车轮走行系统重新获得自动对中能力,提出横向轮轨力及摇头力矩导向方法。首先阐述导向原理,利用横向轮轨力和摇头轴的后倾角形成摇头回正力矩,促使独立车轮自动回到初始横向位置。然后给出独立旋转车轮转向架的布置方案,前后独立轮副的摇头转动轴线呈V形。最后采用多体动力学仿真和样机试验方法对提出的导向原理进行验证。结果表明,无后倾角时独立旋转车轮转向架不能回到轨道中心线位置。然而,当摇头转动轴的后倾角为5°和10°时,独立车轮出现低频横向衰减振动并自动回到初始横向位置。新独立旋转车轮转向架出现了两种蛇行运动。转向架比例样机在溜坡试验中也出现了左右摇晃的车轮蛇行运动现象。因此上述导向方法能够使独立旋转车轮转向架自动对中。In order to recover the self-centering ability for the independently rotating wheel running gear system,the method using lateral wheel-rail forces and yaw moments was proposed.Firstly,the self-steering principle was expounded in detail.The yaw aligning torque generated by the lateral wheel-rail force and the caster angle of yaw axis made contributions to the behavior that the independent wheels returned to the lateral position automatically.Furthermore,the arrangement was given out for the independently rotating wheel bogie.The two yaw axes of the front and rear wheel-pairs were v-shaped.Finally,the steering principle was validated by the multi-body dynamics simulation and the prototype testing.The results show that the independently rotating wheel bogie without caster angles can’t return to the track centerline.The low-frequency damped vibration appears in the lateral direction if the caster angle of the yaw axis is 5 or 10 degrees.The independent wheel automatically restores to the initial and lateral position in this case.Two kinds of hunting motions take place for the new independently rotating wheel bogie.The phenomenon of the wheel hunting motion from side to side occurs in the coasting test of the scaled bogie prototype.In consequence,the proposed steering method makes great contributions to the self-centering ability for the independently rotating wheel bogie.

关 键 词：独立旋转车轮 自动对中 稳定性 蛇行运动 

分 类 号：U270[机械工程—车辆工程]