货车枕簧在随机载荷作用下的疲劳寿命估算

Estimation of fatigue life on bolster spring of freight car in the load spectrum

通过转8A型转向架摇枕与枕簧间的力学关系模型分析和摇枕的已知载荷谱，确定出了枕簧的载荷谱，并以此做为载荷依据对该型弹簧的随机疲劳寿命进行了估算．所得结论可供有关部门参考使用．

The load spectrum of bolster spring is determined by means of known load spectrum of bolster and analysing the mechanics model about bolster and spring of Zhuan 8A typebogie. The fatigue life of bolster spring is estimated in the mentioned research. The conclusion can be referred by related department.