对于具有复杂边界条件的矩形外伸板，在弹性薄板理论中是一个较难解决的问题。

In the theory of elastic thin plates, to solve the problem of rectangular overhanging plates with complicated boundary conditions is very hard for long.

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并由此建立了一个在板的每边能满足三个边界条件的弹性改进理论和一种新的厚板理论。

Based on this theory, a refined theory of plates which can satisfy three boundary conditions along each edge of the plates and a new theory of thick plates are established.

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本文介绍动刚度法在多盘转子系统中的应用，导出了有弹性支承边界条件的动刚度公式。

The dynamic rigidity method applied to the multi-disk rotating systems is presented in this paper. The formula of dynamic rigidity to the boundary conditions with flexible support is derived.

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