关于客车车体扭转载荷问题的探讨

Test & Research Inquiry into Twisting Load on Passenger Carbody

概述了作用于车体上的扭转载荷的概念及产生原因。通过分析认为：对于时速１６０ｋｍ的客车车体，由于该工况下的试验应力值小，可以不考虑；对于高速客车车体（时速２００ｋｍ以上），需要进行扭转载荷工况下的强度试验；对于地铁客车车体，由于车体结构上门、窗开孔多而大，故必须考虑。

In this paper,the conception and causes to the generation of torsional load applied on a carbody are described.Via analysis,it is recognized that for a passenger carbody with a speed of 160 km/h,due to the fact that the tested stress under such working condition is very small,it can be neglected;for a hign speed passenger carbody (with speed over 200 km/h),strength test needs to be carried out under the working condition of torsional load;for a subway passenger carbody,due to the fact that there are more and larger openings of doors and windows,the torsional load must be considered.