平均应力为最大应力与最小应力的平均值 计算公式： -平均应力 -最大应力 -最小应力
By the large engineering software MSC. Marc, the load of this electromotor axes were classified into two types: mean stress(constant load) and stress amplitude(alternation load).
借助于大型工程软件MSC.Marc,将此结构所承受的载荷看成是由某个不变的平均应力(静载—恒定应力部分)和应力振幅(交变应力部分)的组合。
参考来源 - Y·2,447,543篇论文数据，部分数据来源于NoteExpress
如果考虑平均应力的修正，精度会进一步提高。
If the correction of mean stresses are considered, the precision is further improved.
继而进一步计算了膜片静态三种组合的平均应力以及动态应力。
Then three static average stress and the dynamic stre. ss are further studied.
最大应力和最小应力或二者之一和平均应力，以确定其起伏程度。
Either the maximum and minimum stresses of one of these and the mean stress-are required to specify the fluctuation.
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