| 离散变量优化设计的方向差商法 |
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| 引用本文： | 柴山,王健,曹新忠.离散变量优化设计的方向差商法[J].计算力学学报,1994,11(3). |
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| 作者姓名： | 柴山 王健 曹新忠 |
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| 作者单位： | 山东工程学院汽车工程系 |
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| 摘 要： | 本文根据离散变量的特点，提出了方向差商的概念，并且针对一类目标函数、约束函数具有单调性的优化设计问题，发展了一种在可行集外由目标函数最小的点出发，沿目标函数增加最小、约束函数降低最多的方向逐步搜索，逐步靠近可行集边界的方向差商法。并将此方法应用于离散变量结构优化设计中。
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| 关 键 词： | 优化设计，差商，工程结构／离散变量 |
A direction-difference-quotient method of the optimal design of discrete variable |
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| Chai Shan,Wang Jian,Cao Xinzhong.A direction-difference-quotient method of the optimal design of discrete variable[J].Chinese Journal of Computational Mechanics,1994,11(3). |
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| Authors: | Chai Shan Wang Jian Cao Xinzhong |
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| Abstract: | According to the characters of discrete variable,the concept of direction-difference-quo-tient is advanced,and a direction-difference-quotient method is developed in this paper. The method,starting from the minimum point of objective function out of feasible set and ad-vancing along the direction of minimum increasement of objective function and maximum de-creasement of constrained functions, can be used to solve a kind of optimum design problems with monotone objective function and constrained functions.The method has been applied to the optimum design of discrete variable structure. |
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| Keywords: | optimal design difference quotient engineering structure/discrete variable |
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