Influence Analysis of Different Temperature and Humidity on High-speed Train Wheel Wear

doi:10.3901/JME.2018.04.014

Abstract

Abstract: To further research on the influence of temperature and humidity on high-speed train wheel wear, on the basis of the existing test data, and statistical methods and Zobory, Archard wear model are used, temperature and humidity related functional model of friction coefficient and the considering the influences of temperature and humidity wear prediction model is deduced. The high-speed wheel/rail tangential contact relationship is defined on the basis of temperature and humidity related functional model of friction coefficient, and the mixed Eulerian/Lagrangian method is established by the steady-state rolling wheel/rail contact finite element model, the high-speed wheel/rail contact characteristic is analyzed under the conditions of different temperature and humidity, then the wear prediction model is used to analyze the condition of wheel contact spot wear characteristics under the different temperature and humidity condition. The last, the field monitoring data and the model prediction data are compared, and the considering the influence of temperature and humidity wear predictionmodel feasibility is analyzed. The results show:Without considering the effect of transverse and transverse force, with the rise of temperature and humidity, the wheel longitudinal creep force/rate, lateral creep force/rate, wear depth all showed a trend of decline; Compared with the field monitoring data and the model prediction data, and the correlation is good. At the same time, presents a more consistent change rule, so the considering the influences of temperature and humidity wear prediction model feasibility is stronger.

Key words: finite element model, high speed train, temperature and humidity, wheel rail wear

CLC Number:

U211

XIAO Qian, FANG Jiao, YANG Yihang, CHANG Chao. Influence Analysis of Different Temperature and Humidity on High-speed Train Wheel Wear[J]. Journal of Mechanical Engineering, 2018, 54(4): 14-21.

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