离散变量优化设计的方向速率法  

Directional Rate Technique for Optimized Design of Discrete Variables

作　　者：南新军[1] 许宁[1] 

机构地区：[1]江汉石油学院建筑工程系,湖北荆州434102

出　　处：《江汉石油学院学报》2000年第1期67-68,75,共3页Journal of Jianghan Petroleum Institute

摘　　要：根据离散变量的特点 ,提出了方向速率的概念。针对具有单调性的一类目标函数、约束函数的优化设计问题 ,提出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速率法。In terms of the property of discrete variables, a concept of directional velocity is put forward For a kind of optimized design problems having monotonous objective function and restraints, a directional rate technique is proposed The technique is that from the point outside the feasible set where the objective function is the least, searching and closing progressively to the feasible set in the direction where the increase of the objective function is minimum and the decrease of the restraints is maximum

关 键 词：优化设计 方向速率 工程结构 离散变量 结构设计 

分 类 号：TU318.1[建筑科学—结构工程]