3309 車輪滑走時の粘着係数μの実態(第2報) : μとすべり率の関係(SS8-1 接触幾何学と力学,SS8 境界領域研究,J-Rail 2006)

概要

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Under wheel skidding and wheel spin conditions, the adhesion coefficient μ between rails and wheels is considered to be variously changed according to the differences between wheel tread, velocities and train traveling velocity. However, to accurately measure the μ is seemed extremely difficult. The authors installed an event recorder on a narrow gauge JR Ltd. Express EMU to investigate to the behavior of wheel skidding and wheel spin. The recorder can accurately detect the wheel acceleration and deceleration with short sampling time when wheel skidding and spin occurred. At the some time, they precisely calculated the moment of inertia of the motive unit of the EMU. Under wheel skidding and wheel spin conditions, μ was investigated using the detected wheel acceleration and deceleration speed, braking force and the moment of inertia under various operating speed and various weather conditions. The results of the study were written in the paper.
一般社団法人日本機械学会の論文
2006-12-13