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本文论述了求解掩护式液压支架各构件的极限受力的方法。首先,提出掩护式支架各构件的受力是由这种支架的五个主要外界条件构成的五维空间函数的概念,然后建立求解各构件的极限受力这个问题的非线性规划数学模型。用外点罚函数法构成罚函数,用梯度法完成无约束极小化搜索,最后形成了实施这个数学模型的计算机程序OPTTWDRCT。在MC68000微型计算机上用这个程序对掩护式支架做一次这样的综合受力分析,大约用20～60分钟机时即可完成。
This article discusses the method of solving the ultimate force of the components of the shield hydraulic support. First of all, the paper puts forward the concept that the force of each component of the shield type support is a five-dimensional space function composed of the five main external conditions of the stent. Then, a nonlinear programming mathematical model for solving the problem of ultimate force of each component is established. The penalty function is formed by the outer penalty function method, and the unconstrained minimization search is completed by the gradient method. Finally, a computer program OPTTWDRCT for implementing this mathematical model is formed. Use this program on the MC68000 micro-computer to do such a comprehensive screening analysis of the shield bracket, about 20 to 60 minutes to complete the machine.