横向风对跨座式单轨车辆运行平稳性的影响  

Influence of Lateral Wind on the Stability of Straddle Type Monorail Vehicles Traveling in Straight Track Sections

作　　者：赵树恩[1] 刘淅 李玉玲[1] 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《噪声与振动控制》2015年第1期136-140,155,共6页Noise and Vibration Control

基　　金：重庆市科委科研项目(cstc2014jcyj A60007);重庆市教委科学研究项目(KJ120415);重庆交通大学博士基金项目(101137)

摘　　要：跨座式城市单轨交通车辆直线段运行时,横向风的作用将会严重影响运行的平稳性乃至安全性能。由此,首先对车辆行驶过程中的横向风作用载荷进行分析,运用ADAMS多体动力学仿真软件建立跨座式单轨车辆"车体—轮胎—轨道梁"耦合系统动力学模型,分别对不同横向风速及不同车速时车辆直线段运行平稳性进行仿真分析。仿真结果表明:在横向风条件下,车速和风速的变化对的跨座式单轨车辆横向加速度影响较大,并进一步影响车辆的运行平稳性。且当车速或风速过大时,车辆会发生失稳现象。分析的结论对于这种车辆的设计可提供一种警示作用。When the straddle-type monorail vehicles are traveling in a straight track section, lateral wind will seriously deterioratethe riding stability and safety of the vehicles. In this article, the lateral wind load for the traveling vehicle was analyzed.The“car body-tire-track beam”coupled system model for straddle-type monorail vehicles was established by means ofthe multi-body dynamics analysis software ADAMS. Then, the riding stability of the vehicle was simulated under the conditionof different wind speeds and different vehicle speeds. The results show that variations of wind speed and vehicle speed havelarge influence on the lateral acceleration of the vehicle, so they also have large influence on the riding stability of the vehicle.When the wind speed or vehicle speed exceed their critical values, the vehicle will lose its riding stability. This conclusion hasprovided a warning for the design of straddle type monorail vehicles.

关 键 词：振动与波 跨座式单轨车辆 运行平稳性 横向风 

分 类 号：TB53[理学—物理] U232[理学—声学]