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在优化设计问题中,大多是有约束的,对于约束优化方法的研究,目前虽不及无约束优化那样完善和深入,但也有不少方法可供选用。根据对约束条件处理方法的不同,有直接法和间接法两大类。直接法的基本思想是设法使每次迭代点限制在可行域内,并一步一步地降低目标函数值,直到最后获得一个在可行域内的约束最优解。直接法常用的有约束随
Most of the optimization design problems are constrained. Although the research on the constraint optimization methods is not as perfect and thorough as the unconstrained optimization, there are many methods to choose from. According to the different treatment methods of constraints, there are two major categories of direct method and indirect method. The basic idea of direct method is to try to limit each iteration point in the feasible region, and reduce the objective function value step by step, until finally obtain a constrained optimal solution in the feasible region. Direct method commonly used restraint