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(1) 本文介绍利用当量直径的概念对非十分重要的阶梯轴弯曲的刚度作近似计算的方法; (2) 推导当量直径的计算公式。并指出“机械制造者手册”卷4中所介绍的空心阶梯轴当量直径计算公式是不合理的。
(1) This paper presents a method for approximating the stiffness of a non-critical stepped shaft using the concept of equivalent diameter. (2) Derive the formula for the equivalent diameter. And pointed out that the formula for calculating the equivalent diameter of a hollow stepped shaft introduced in Volume 4 of the Handbook of Machinery Manufacturers was unreasonable.