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一、试验目的毛主席教导我们:“精心设计,精心施工”。由于活塞头部形状较复杂,各部分应力计算值与实际值之间存在很大偏差。因此,为了确切掌握活塞头各部分的应力分布;为了事先能避免出现应力集中点;为了使活塞头各部分尺寸设计得更为合理;为了减轻活塞头重量,我们对组合活塞在静压试验装置上用应变片进行了机械应力测试。与此同时,在静压试验装置上还测量了受力状态下的变形情况,以
First, the purpose of experiment Chairman Mao taught us: “well-designed, well-constructed.” Due to the complexity of the head shape of the piston, there is a large deviation between the calculated and actual stress values of the various parts. Therefore, in order to accurately grasp the stress distribution of the various parts of the piston head; in order to avoid stress concentration point in advance; in order to make the size of each part of the piston head more reasonable; in order to reduce the weight of the piston head, we combined piston in the hydrostatic test device Mechanical strain tests were performed on strain gages. At the same time, the static pressure test device also measured the deformation of the state of stress