摘要
机车轮轨粘着系数随着时间、位置、车轮和轨道状况而变化。基于多体动力学理论,利用SIMPACK动力学仿真分析软件建立了某C0-C0型机车的动力学模型,分析了粘着系数对机车安全性能的影响。结果表明:轮轨表面有水时对粘着系数的影响比较大,小雨时粘着系数可突然下降到0.1以下,而大雨所引起的粘着系数的降低却不太大;粘着系数对机车在直线段和曲线段的轮轨横向力和脱轨系数影响较为明显。
The adhesion coefficient of locomotive wheel/rail changes along with the time, location, wheel and track status. In this paper, based on the theory of multi-body dynamics, the influence of adhesion coefficient of rain and snow on locomotive safety performance is analyzed and calculated by using SIMPACK software. The results show that the water has much influence on the adhesion on the wheel-rail surface. The adhesion coefficient is below 0. 1 under the condition of light rain, and the ad- hesion coefficient caused by heavy rain is a little bigger than that caused by light rain. The influence of adhesion coefficient on the wheel/rail lateral force and the coefficient of derailment is obvious when the locomotive runs on the straight tack or the curved track
出处
《重庆理工大学学报（自然科学）》
CAS
2013年第9期17-21,共5页
Journal of Chongqing University of Technology：Natural Science
基金
国家自然科学基金资助项目(51075340)
关键词
雨雪天气
粘着系数
机车安全性
rain and snow
adhesion coefficient
locomotive safety
