車両運動シミュレーションによる曲線通過特性の解析 : 車輪・レールの断面形状の違いが横圧に与える影響

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By our vehicle dynamics simulation program where a worn rail-wheel profile can be arbitrarily taken as input data, we investigated the mechanism that an arc wheel profile and decrease in primary longitudinal stiffness can reduce steady side thrust of a wheel when railway vehicles run on curves. In this paper, an outline of our program and the fact that the calculations are close to the data from running test in the field are described, and the following points are made clear: ( 1 ) In the case of small friction coefficient between the wheel and rail, the low stiffness is not so effective for reduction of the steady side thrust. The reason is that the differences of lateral creep force are not produced for different stiffness due to reaching saturation of the creep force when the friction coefficient is small. ( 2 ) The reduction of the steady side thrust of the outer wheel of 1st axle in the case of the arc profile is closely related to the motion of the 2nd axle.
一般社団法人日本機械学会の論文
1992-04-25