作　　者： ; ; ;

机构地区： 烟台大学机电汽车工程学院

出　　处： 《机械设计》 2004年第9期7-10,共4页

摘　　要： 复杂系统优化设计方法研究是优化设计的一个重要方面 ,目前 ,复杂机械系统的优化设计方法主要有直接法和分解协调法 ,均没有解决复杂系统的优化问题。提出了基于特征变量的优化设计新方法 ,这种方法在实践中得到了应用 ,证明是有效的 ,但该优化方法缺乏理论指导。对基于特征变量的优化方法进行了理论分析 ,提出了基于特征变量的分级优化结果是原问题最优解的条件 ,并从必要条件和充分条件两方面论证了该方法优化的结果就是原优化问题的最优解。 The study of optimal designing method of complex system is an important aspect of optimization design; the current optimization designing method of complex mechanical system mainly has the direct method and the decomposing coordinative method, but they all didn't solve the optimization problem of complex system. The new method of optimization design based on characteristic variables has been put forward. Although this method has been put into application in practice and proved to be effective, yet this optimization method is still lacking of theoretical guidance. A theoretical analysis was carried out on the optimization method based on characteristic variables. The graded optimization result based on characteristic variables was proposed to be the condition of optimal solution of the original problem, and the optimal result of this method, being verified from two respects of necessary conditions and sufficient conditions, is just the optimal solution of the original optimized problem.

关 键 词： 特征变量 复杂机械系统 优化设计 理论研究

领　　域： [机械工程]