关键词: 领域专家设计经验, 知识获取, 知识表示, 神经规则, 固体火箭发动机设计

Abstract: To realize a complete product design knowledge acquisition， in domain of product design based on Knowledgebased engineering (KBE)， knowledge acquisition based on combination of design cases and domain experts experience was researched. Firstly， knowledge acquisition based on product design cases， as well as that based on domain experts， was studied. Secondly， the fusion algorithm of the cases knowledge and domain experts experience was proposed， and its result was represented as neural rules. Thirdly， a framework of product design knowledge acquisition combining product design cases and domain experts experience was built. Finally， the knowledge acquisition and representation was implemented in solid rocket motor (SRM) design based on KBE， and the acquisition of knowledge relevant to domain experts experience was solved， fine-grained and complete knowledge of SRM grain selection was gained. The SRM design case validates that the technique is valid in domain of SRM design based on KBE.

Key words: domain expert experience, knowledge acquisition, knowledge representation, neural rules, solid rocket motor design