鉄道車輪の踏面形状が車両運動特性に与える影響 : 円弧/円すい踏面形状に対する入力エネルギーおよび幾何学的蛇行動波長に基づく評価

概要

論文の詳細を見る
It is found through vehicle dynamics simulation that a carbody hunting motion for arc tread wheel becomes smaller than that for conic tread wheel in new type SHINKANSEN train which is bolsterless and has soft suspension between carbody and bogie. Then we studied about the reason, comparing kinematic hunting wave length of a bogie with the natural frequency of the carbody and also evaluating input energy from rail to vehicle. The analysis shows that vehicle with arc profile treat has high frequency from short kinematic wave length in a high speed (270 km/h) whereas low carbody natural frequency, then the frequency of carbody hunting motion becomes apart from the natural frequency and smaller than that with conic profile. In addition, the energy input from rail to vehicle were calculated from simulation and verified the validity of relation between the carbody natural frequency and hunting characteristics. An arc profile that varies with lateral displacement of wheelset also shows that the energy input from rail is smaller than that in a conic profile.
一般社団法人日本機械学会の論文
1998-05-25