磁流变耦合轮对车辆的超高速曲线通过性能  

Super-high Speed Curve Passing Performances of Vehicle with MRF Coupled Wheelsets

作　　者：倪平涛 张洪[1] 王开文[2] 

机构地区：[1]四方机车车辆股份有限公司技术中心,山东青岛266111 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《西南交通大学学报》2008年第3期373-376,391,共5页Journal of Southwest Jiaotong University

基　　金：教育部博士学科点专项科研基金资助项目(20030613004)

摘　　要：为了探讨磁流变耦合轮对车辆的动力学性能和超高速运行的可行性,基于磁流变双粘度本构关系,建立了具有抗蛇行运动减振器的磁流变耦合轮对整车曲线通过模型.研究表明:当磁流变屈服应力较小时,车辆具有较高的临界速度,但车轮和钢轨在曲线上易出现两点接触;在确定的车辆悬挂参数、合适的磁流变屈服应力和抗蛇行运动阻尼的条件下,抗蛇行减振器磁流变耦合轮对车辆具有较好的超高速曲线通过性能.In order to research the dynamic performances and running feasibility of a vehicle with MRF （magnetorheological fluid） coupled wheelsets at super-high speed, a spatial curve passing model for a holonomic vehicle with MRF coupled wheelsets and anti-hunting dampers was established based on the MRF biviscous constitutive relation. The simulation result shows that under the condition of a small MRF yield stress, the vehicle will hold higher critical velocity, but wheel/rail two-point contact appears easily. Vehicles with MRF coupled wheelsets and anti-hunting dampers may possess a good super-high speed curve passing performance under the conditions of given suspension parameters, a suitable MRF yield stress and anti-hunting damp.

关 键 词：磁流变轮对 双粘度 超高速曲线通过 仿真 

分 类 号：U270.11[机械工程—车辆工程]