The method is that designing theory is simpleness and being understood is easy and avoiding complexity computation on stateequations and drive equations.
该方法设计理论简单易懂，避免了状态方程和驱动方程的复杂计算。
2
The main content is as follows:1. The establishment of the stateequations .
本文研究的主要内容有：1、状态方程组的建立。
3
The limit stateequations of main failure modes are formulated by the increment interval load method.