间接测量技术在轻轨车辆上的应用

发布时间：2018-02-27 14:55

本文关键词： 弹性车轮间接测量安全性评估动力学仿真轮轨力　出处：《西南交通大学》2016年硕士论文　论文类型：学位论文

【摘要】：在众多城市公共交通系统,采用弹性车轮的轻轨车辆,具有快捷,便利,噪声小等优点,得到越来越广泛的应用。与刚性车轮不同,弹性车轮目前还无法被制作成测力轮对。在弹性车轮的轻轨车辆上,采用轮轨力间接测量方法进行线路动力学试验的研究,评估轻轨车辆的运行安全性,具有重要工程意义。准确的测量出轮轨力是评估车辆脱轨安全性指标的基础,同时,这也是进一步研究车辆运行性能和解决轮轨表面损伤等问题的理论依据。为了对采用弹性车轮的低地板车辆的安全性做出评估,较为精确的测量出轮轨力显得尤为重要。本文在对比了国内外各种轮轨力测量方法的基础上,研究了间接测量方法在采用弹性车轮轻轨车辆上应用的可行性。首先,在SIMPACK软件中分别建立了采用弹性车轮和刚性车轮的轻轨车辆整车的非线性动力学模型,对比了两者的动力学仿真结果。然后,将仿真得到的采用弹性车轮模型的轮轨力安全性结果和间接测量安全性计算结果进行对比,论证了该方法在弹性车轮轻轨车辆应用的可行性。通过动力学仿真分析,在采用弹性车轮的轻轨车辆上运用轮轨力间接测量方法,虽然间接测量方法的计算结果与仿真输出值之间存在一定的误差,但在工程容许范围之内。所以,轮轨力间接测量方法在实际工程中可以运用并且得到推广。最后,采用间接测量方法对弹性车轮轻轨车辆的安全性进行了评估。
[Abstract]:In many urban public transport systems, light rail vehicles with elastic wheels have the advantages of fast, convenient, low noise and so on, which are more and more widely used. At present, elastic wheels can not be made into force measuring wheelsets. In light rail vehicles with elastic wheels, the indirect measurement method of wheel / rail force is used to study the line dynamics test to evaluate the operation safety of light rail vehicles. Accurate measurement of wheel / rail force is the basis of evaluating vehicle derailment safety index, at the same time, This is also the theoretical basis for further studying vehicle performance and solving wheel / rail surface damage problems. In order to evaluate the safety of low floor vehicles with elastic wheels, It is very important to measure wheel / rail force accurately. On the basis of comparing various wheel / rail force measurement methods at home and abroad, this paper studies the feasibility of applying indirect measurement method to light rail vehicles with elastic wheels. The nonlinear dynamic models of light rail vehicle with elastic wheel and rigid wheel are established in SIMPACK software, and the dynamic simulation results of the two models are compared. The simulation results of wheel-rail force safety with elastic wheel model and indirect measurement safety calculation results are compared, and the feasibility of applying this method to flexible wheel light rail vehicles is demonstrated. The indirect measurement method of wheel-rail force is used in light rail vehicles with elastic wheels. Although there is a certain error between the calculation result of indirect measurement method and the simulation output value, it is within the engineering allowable range. The indirect measurement method of wheel / rail force can be applied and popularized in practical engineering. Finally, the safety of light rail vehicle with elastic wheel is evaluated by indirect measurement method.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U482.1

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