2303 車両運動解析における車輪/レール接触モデルについて(OS4-1 接触問題とトライボロジ(その1),OS4 接触問題とトライボロジ,オーガナイズド・セッション)

概要

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In this investigation, contact search algorithms for the analysis of wheel/rail contact problems are discussed and the on-line and off-line hybrid contact search method is developed for multibody railroad vehicle dynamics simulations using the elastic contact formulation. In the hybrid algorithm developed in this investigation, the off-line search that can be effectively used for the tread contact is switched to the on-line search when the contact point is jumped to the flange region. By so doing, the on-line detection of the second point of contact at one-point contact configurations can be replaced with a simple table look-up. It is demonstrated by several numerical examples that the proposed hybrid contact search algorithm can be effectively used for modeling wheel/rail contacts in the analysis of general multibody railroad vehicle dynamics.
2008-12-09