曲線軌道上で基礎励振を受ける高速走行車両の振動挙動に関する検討(<特集>D & D 2007)

概要

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The overturning possibility for the vehicle running at very high speed subjected to the base excitation is investigated. One-half of the whole vehicle is analytically modeled. The vehicle consists of the body and the truck. The body and the truck have 3 degrees of freedom (horizontal, vertical and rolling direction) respectively, and the wheel has 1 degree of freedom (horizontal direction). Considering the stoppers, the springs between the body and the truck, and that between the truck and the wheel are treated by the nonlinear springs. The creep force and the contact between the flange of the wheel and the rail are considered. The vibrational behavior of the vehicle is calculated when the vehicle is subjected to the actual seismic input in horizontal and vertical directions simultaneously. The possibility of rollover of the vehicle is evaluated by "risk rate of rollover". The risk rate of rollover of the running vehicle is investigated both in a straight track and a curve track.
社団法人日本機械学会の論文
2008-05-25