主催: 一般社団法人 日本機械学会
会議名: 2016年度 年次大会
開催日: 2016/09/11 - 2016/09/14
It is important to secure running safety of railway vehicles against wheel-climb derailment accidents. The safety is often discussed according to the value of the derailment coefficient for the leading-outside wheel of a railway bogie running on a sharp curve. Therefore, the detailed mechanism which influences the value of derailment coefficient should be clarified. One of the most dominant factors which greatly affect the value of derailment coefficient is the friction coefficient between wheel and rail. Since the gauge corner of the outside rail and the top of the inside rail are lubricated at some sharp curves, values of friction coefficients fluctuate. In this study, the induced mechanism of derailment coefficient is clarified by using multibody-dynamics simulation and the roller-rig test equipment. The method to identify the lubrication condition of each wheel utilizing measurement of applied force of mono-links is also investigated.
