台車の回転運動に対する弾性および摩擦モーメントが軸箱を弾性支持した台車の強制だ行動に及ぼす影響

概要

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On the truck of the general construction with the supporting stiffness both in the longitudinal and lateral directions of axle, the authors analyzed theoretically the forced hunting phenomena of a bogie truck having a small clearance in the connecting position between the truck frame and the bolster anchor where the spring and friction are connected in series against truck turning. The analysis revealed that the forced hunting phenomena of a bogie truck is affected by various factors: the wheel tread conicity, the bolster anchor stiffness, the clearance between the truck frame and the bolster anchor, the frictional force of the side bearer, the supporting stiffness of axle, the running velocity and others. According to the calculation, the authors clarified that the upper vibration of the truck disappears by selecting a suitable value for the supporting stiffness of axle and the small clearance existing between the truck frame and the bolster anchor has a bad effect on the truck vibration. Furthermore, the investigation of complicated nonlinear phenomena and the target values for the design of a high-speed truck are presented.
一般社団法人日本機械学会の論文
1988-12-20