关键词: 变型设计, 产品基因, 产品优化模型

Abstract: Rapid product variant design needs a logical product structure model.According to the requirement，a new variant design idea is put forward based on product gene.The product gene model and its sequential gene manipulations are established，which describe a product optimization model.Adapting to the optimization model，an Improved Artificial Immune Algorithm（IAIA） is adopted to attain the results of product optimization of variant design.Finally，a typical case of icebox is given to evaluate the performance of the proposed approach，thus，another structure design and optimization method is provided for variant design theory.

Key words: variant design, product gene, product optimization model, artificial immune algorithm