Abstract: To develop a highly effective and efficient assembly system for small and medium-sized enterprises,a multi-layer and multi-dimensional assembly integrated model was defined. To realize each assembly design function effectively, a set of assembly application models were proposed to model assembly topological structure, assembly relationship, assembly process and simulation respectively. The dimension chain, assembly relationship matrix, electronic technical documents and so on were generated automatically. The assembly domain model was used to express assembly public semantic structure and domain knowledge, and single data source of assembly which supported data reuse and sharing was established. Furthermore, the assembly data transformation and derivation methods were studied to realize automatic development of model data oriented to structure, semantic and procedure. This modeling approach was validated in AeroAssem assembly design system's design and development.

Key words: small and medium enterprises, assembly design system, assembly model, data transferring, data derivation

摘要： 为建立高效的中小企业装配设计系统，定义了多层次与多维度的装配集成模型。为有效实现各项装配设计功能，提出一组装配应用模型，分别对装配拓扑结构、装配关系、装配工艺及仿真等进行建模，自动生成尺寸链、装配关系矩阵与电子技术文档等；采用装配领域模型表达公共语义结构与领域知识，建立单一装配数据源，支持数据重用与共享。研究了装配数据迁移与衍生衍变方法，用以实现面向结构、语义与过程的模型数据自动衍变。将该模型用于AeroAssem装配设计系统的设计开发，并进行了应用验证。

关键词: 中小企业, 装配设计系统, 装配模型, 迁移衍变, 衍生衍变