一种基于知识进化的多层次结构产品整体方案创新设计方法

研究并提出了一种基于知识进化的多层次结构产品整体方案创新设计系统模型,该模型根据机械产品都具有多层次结构的特点，通过把机械方案设计过程看作是一个状态空间的求解问题,用基因算法（DGA）从整体上控制其搜索过程,构建了新的多层次基因编码体系。为了适应新的编码体系重新构建了交叉和变异等基因操作，并利用复制、交换和变异等操作进行一次次迭代,最终自动生成一组最优的设计方案。该系统经过实例验证具有很高的有效性、准确性和实用性。

Application of Genetic Algorithm in Hierarchical Structure Product Integer Conceptual Innovation Design

Based on the genetic algorithm, a model of hierarchical structure product integer conceptual innovation design system is researched and proposed. In this paper, particular emphasis is placed on the fact that machine systems generally have hierarchical structures. Via treating those machines conceptual designs as design spaces to resolve, using the genetic algorithm, controlled its search process on the whole, a new hierarchical genotype representation is developed. In order to adapt this kind of representation, the genetic operators include of crossover operators and mutation operators, i.e., are newly constructed. Utilized the reproduction, crossover and mutation i.e. to iteration, a set of optimized design scheme are built automatically. A design example demonstrates this system is effective, exact and applied.