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在冶金、矿山、工程、动力、起重、运输等重型机械设计中,轴、弹簧、螺栓等重要零件的耐久强度计算,虽然前人已总结出不少计算方法,但多数繁琐复杂,不便于工程应用。而且,这些计算末能明确地反映载荷、结构、尺寸和材料性能之间的内在关系,对受力情况相似的各类零件也未建立普遍的解法。本文试图在变应力理论的基础上,探讨零件耐久强度计算的规律性,并寻求零件耐久强度计算的普遍公式,以及利用列线图确定或校核零件强度的方法。
In the metallurgical, mining, engineering, power, lifting, transportation and other heavy machinery design, shaft, spring, bolt and other important parts of the durability strength calculation, although many people have summed up a number of calculation methods, but most complicated and inconvenient Engineering Applications. Moreover, these calculations do not explicitly reflect the inherent relationship between load, structure, size, and material properties, nor do they establish a universal solution to the various types of parts that experience similar forces. Based on the theory of stress-strain, this paper attempts to explore the regularity of the calculation of the durability of parts and find the general formula for calculating the durability of parts and the method of determining or checking the strength of the parts by using the nomogram.