高速走行性能からみた軸箱支持剛性の最適設計

概要

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This paper presents optimal design of primary stiffness of conventional truck. The aim of this study is to introduce a function which represents optimal stiffness for hunting stability and curving performance. This has been done by analytical and not by numerical calculation. Using simple 4 degrees of freedom dynamic model of truck, optimal primary yaw and lateral stiffnesses were calculated for critical speed of wheelset and truck hunting as functions of various wheelset parameters and creep coefficient. For curving performance judging method was proposed considering any track conditions described by curve radius, flangeway clearance and cant deficiency. Introducing non dimensional flangeway clearance, formalized unbalanced centrifugal force, bending and shearing stiffnesses four equations were obtained. If these equations are satisfied, good curving performance can be expected. Using these results, optimal design of conventional passenger truck for high speed operation has been discussed.
一般社団法人日本機械学会の論文
1986-03-25