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液压缸是承受高压的零件(结构及主要尺寸见图1),由于在法兰及缸底处结构尺寸发生突变,故应力集中较为严重。为保证其强度和使用寿命,必须使其最大应力下降,这通常需要增大结构尺寸,增加材料的用量。另一方面,液压缸的成本在很大程度上取决于设计。为了降低成本,在强度允许的条件下应减小结构尺寸。因此,提高产品的可靠性与节约材料就成为一对矛盾。但若仔细考察各单个参数的
Hydraulic cylinder is to withstand high pressure parts (structure and main dimensions shown in Figure 1), due to sudden changes in the size of the structure at the flange and the bottom of the cylinder, so the stress concentration is more serious. In order to ensure its strength and service life, the maximum stress must be reduced, which usually requires increasing the size of the structure and increasing the amount of material used. On the other hand, the cost of a hydraulic cylinder depends very much on the design. In order to reduce the cost, the structure size should be reduced under the condition of strength. Therefore, improving product reliability and material savings become a contradiction. But if you examine each individual parameter carefully