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链环的冲击作用会导致产生时间上迅速变化的临界应力状态,但以往进行连锁作用及锁环效应的测试时,很少考虑它的作用。实际生产中,由于预应力及拉力的作用,动应力与静应力相互叠加,致使圆环链产生特别高的应力,导致链条断裂。一、引言人们早已了解到有关刚性物体冲击作用的规律,不过,其中只有冲击物体被看作为一个整体。根据弹性理论可以测定在简单情况下被冲击物体的速度及其力的变化曲线。然而在实际中,关于对被冲击或冲击链环的应力状态、应力值及其随时间而变化的分布状况等方面的了
The impact of the link will result in a critical stress state that changes rapidly in time, but in the past it was rarely considered when testing the linkage and lock-ring effects. In actual production, due to the effect of prestress and tension, dynamic stress and static stress are superposed on each other, resulting in a particularly high stress on the circular chain, resulting in chain fracture. I. INTRODUCTION People have long been aware of the law of the impact of rigid objects, but only the impact of the object is seen as a whole. The elastic theory can be used to measure the velocity of an object being struck and its force in a simple situation. In practice, however, with regard to the stress state of an impact or impact link, stress values and their distribution over time