Torsional and bending load spectra of drive shaft are worked out and fatigue life of the shaft estimated.
编制出驱动轮轴扭转与弯曲载荷谱，并对驱动轮轴的随机疲劳寿命进行了估算。
The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.
结果表明，扭转预应变降低低周疲劳寿命，循环应力随扭转预应变的增大而增大。
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