The structural optimum design with discrete variables under stress and section size constraints is performed using this method.
这种方法能直接求解具有应力约束和几何约束的离散变量结构优化设计问题。
In the optimum design, effects of variety of structure type and structural components on stress are analysed, so that reasonable structure type and component dimensions may be obtained.
在优化设计中，用正交法分析了结构形式和构件变化对应力变化的影响，得出了合理的结构形式和构件尺寸。
According to the stress check criteria of the integral flange stipulated in GB150-1998 steel pressure vessels, optimum design of the integral flange is made by Lagrangian method.
根据GB150—1998钢制压力容器中整体法兰中的应力校核原则，采用优化设计方法中拉格朗日乘子法，进行最小质量的优化计算。
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