机械系统辅助概念设计的演化方法

Evolution in Conceptual Design of Mechanical Systems

在对设计过程的深刻认识基础上，本文提出并分析了机械系统辅助概念设计的演化模型CBED，结合机械系统的领域特性和演化个体的实例表达，对一般的演化算法进行了扩展和修正，包括建立在功能实现最小系统概念基础上的功能衍生算子及与交叉、变异算子和补足算子的结合、父体功能－结构分析算子和结构合并算子等。

Based on deep understanding of design process, the evolutionary design model for conceptual de-sign of mechanical systems is proposed and analyzed. Combined with the field properties of mechanical systems andcase express, the evolutionary algorithm is revised and expanded, including functional derivation operator built onthe concept of minimum system to a function realization and its combination to crossover operator, mutation operator,the function-structure analysis operator and the structure union operator. It embodies the mind that the design of ev-olutionary operator should combine with field properties and evolutionary individual express, then it provides a newway to conceptual design.