基于分解树的复杂产品装配实例表示方法  

A Method for Representing Assembly Case of Complex Product Based on Disassembly Tree

作　　者：李原[1] 陈刚[1] 张开富[1] 杨海成[1] 

机构地区：[1]西北工业大学现代设计与集成制造技术教育部重点实验室,陕西西安710072

出　　处：《西北工业大学学报》2005年第4期500-503,共4页Journal of Northwestern Polytechnical University

基　　金：国家"863"计划CIMS项目(2003AA411220);航空基金项目(01H53067);西北工业大学青年教师创新基金

摘　　要：基于实例的装配方案设计有利于提高装配方案的设计效率和准确性,而装配实例的表示和存储是基于实例的装配方案设计的基础。因此,提出基于分解树的装配实例表示方法。该方法包含2部分:1基于分解树表示装配结构;2基于分解树表示装配规划方案。并实现了基于邻接矩阵的装配方案存储,总结了基于邻接矩阵的装配实例存储方法的4个性质。并采用实例验证了该方法是有效的。Some knowledge or experience in the process of product assembly is very useful for the assembly process of following products. Case-Based Design （CBD） can achieve the knowledge or experience reusing, and case representation and storage is crucial for CBD. We presents a method for representing assembly case of complex product based on disassembly tree. The method includes two key steps. Firstly, assembly structure and assembly planning scheme are represented based on disassembly tree. In the disassembly tree, the node represents assembly-cell, such as assembly, sub-assembly, or part, and the line between two nodes represents the filiation between two assembly-cells. Then, assembly case representation is achieved. Secondly, storage of assembly case based on adjacency-matrix is presented. The adjacencymatrix includes a one-dimensional array and a two-dimensional array. The one-dimensional array is used to save the sequence and name of the nodes of disassembly tree, and the two-dimensional array is used to save the relationship between two nodes. Storage of assembly case based on adjacency characteristics which are described in detail in this paper. Finally, an example is given to prove that the above method is valid and effective.

关 键 词：分解树 装配实例表示 邻接矩阵 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论] TP391.77[自动化与计算机技术—计算机科学与技术]