2931 自己操舵性独立回転車輪台車のリンク系ジオメトリの最適化による走行性能改善の可能性(J15-1 交通機械のダイナミクス(1),ジョイントセッション,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The bogie used for LRT (Light Rail Transit) has independently rotating wheels from the purpose of lowering floor. However, independently rotating wheels lack the ability of self-steering, and there is a problem of flange wear-out by the increase of lateral force during curve negotiation. On the other hand, independently rotating wheels for EEF bogie have self-steering ability depending on gravitational restorative force caused by nonlinear wheel profile. However, the dynamics of EEF bogie is still unclear and conducting detailed analysis is desired. This paper conducts numerical simulation corresponding to right and left turn in intersection for LRT. From the result of numerical calculation, the authors propose optimization method for geometrical design of link system used in EEF bogie in order to decrease lateral force during tight curve section.
2008-08-02