面向侧向风稳定性的高速客车建模与仿真研究  

Modeling and Simulation Study on Crosswind Stability of the High-speed Bus

作　　者：秦东晨[1] 于立[1] 徐一村[1] 蓝贤清[1] 

机构地区：[1]郑州大学机械工程学院,河南郑州450001

出　　处：《郑州大学学报（工学版）》2011年第2期29-32,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省科技攻关计划项目(072102210074)

摘　　要：为分析侧向风对高速客车操纵稳定性的影响,以多体动力学为基础,在ADAMS/Car专业模块中建立了某型号高速客车模型.通过考虑车身上7个离散的侧风作用点,进而实现了风压中心漂移的侧风模型.通过对美国ESV规范中规定的侧风敏感性试验标准的改进,分别进行了计及风压中心漂移侧风实验(test1)、风压中心固定下的侧风仿真试验(test2)、无侧风环境下客车高速直线行驶仿真试验(test3),将三者的仿真试验结果进行对比,认为风压中心漂移的仿真数据更为合理,为改善该车型的侧风稳定性提供了参考依据.Based on multi-body system dynamics,the model of Yutong high-speed bus was built by the ADAMS/Car software to analyse the influence of crosswind on the high-speed bus handing stability.Seven discrete wind pressure centers that affect the chasis were taken into account,so the crosswind model with a shifting pressure center was achieved.After improving the standard of the crosswind sensitivity test that prescribed by American ESV（Experimental safety vehicle）,the crosswind simulation tests with pressure center＇s shift and the immobile pressure center were carried out.The high-speed straight-line simulation test without the crosswind was also completed.By comparing the results of the three tests,the test data in consideration of wind pressure center＇s shift was more reasonable and provided the reference data for improving the crosswind stability of the bus.

关 键 词：高速客车 侧向风稳定性 风压中心 ADAMS/CAR 仿真 

分 类 号：U461.6[机械工程—车辆工程] U271[交通运输工程—载运工具运用工程]