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- W2368378743 abstract "With the diameter of 860mm LMA tread wheelset and 60kg.m-1 rail as examples,considering the heat conduction between wheel and rail,the heat conduction and thermal radiation between wheel/rail and environment,the thermo-mechanical coupled finite element model of wheel-rail contact was established using mixed Lagrangian-Eulerian method provided by nonlinear finite element analysis software ABAQUS.The thermo-mechanical coupling problems under wheel rail rolling and sliding contact conditions were analyzed by combining the implicit method with explicit method.The results show that,under the condition of wheel-rail rolling contact,the friction temperature rise between wheel and rail is smaller,which does not affect the material properties of wheel/rail surface,and the influence of temperature on wheel-rail contact characteristics can be ignored in engineering.Under the condition of wheel-rail sliding contact,the friction temperature rise between wheel and rail is enough to change the material properties of wheel/rail surface then affect friction coefficient.And different friction coefficients have great influence on the thermo-mechanical coupling characteristics of wheel-rail contact.Therefore,the thermo-mechanical coupling characteristics of wheel-rail sliding contact can be accurately analyzed by adopting the functional friction coefficient related to such factors as relative sliding velocity,temperature and load,etc." @default.
- W2368378743 created "2016-06-24" @default.
- W2368378743 creator A5057973825 @default.
- W2368378743 date "2013-01-01" @default.
- W2368378743 modified "2023-09-23" @default.
- W2368378743 title "Thermal Mechanical Coupling Analysis of Wheel Rail Rolling and Sliding Contacts under Functional Friction Coefficient" @default.
- W2368378743 hasPublicationYear "2013" @default.
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