【摘要】 研究了并行环境下产品模型变动技术，分析了产品设计周期中的模型相关性，提出了概念设计中的准装配模型的装配特征识别算法、装配关系变动引起的装配顺序的求解算法和详细设计中设计特征变动所引起的装配模型的变动算法，所提出的算法具有效率高及保证信息完整等优点。当面向并行的产品设计制造系统具备了上述功能，分布在异地的设计者均可以方便地对输入、输出参数进行实时修改。更多还原

【Abstract】 In this paper model changed technique under concurrent environment is discussed by analysis model relationship of product design life－ period. Assembly－ feature is recognized from assembly model of conception design. The algorithm of assembly relation changed lead to variable of assembly sequence and assembly－ feature and assembly model is studied. The variable strategy and technique for assembly model caused by the change of design－ model are presented by using the feature relation graph of design－ feature and assembly－ feature, the characteristic of assembly feature.更多还原