摘要
针对机电产品各子系统之间的复杂作用关系,提出了基于有向模糊图的产品系统结构相似度计算模型,以实现产品概念设计的实例检索。扩展定义了有向模糊图概念,建立机电产品系统有向图模型,利用积和式矩阵对有向图模型进行描述;通过积和式函数多项式对产品系统进行结构分析,将主观权重和客观权重组合计算产品系统有向图结构相似度。以SF2005型加速度传感器的实例检索为例证明了该结构相似度计算模型的可行性。
To deal with the functional relationship between mechanical product subsystems,a structural similarity computation model of product system by using directed fuzzy graph was proposed for product case retrieval during conceptual design.The concept of directed fuzzy graph was defined,and a directed graph model of product system was created and then represented by permanent matrix.Structural analysis of product system was conducted by using permanent function and the structural similarities of product system directed models were computed by combining subjective and objective weights.Finally,the case retrieval of SF2005 proved the applicability and effectiveness of the proposed similarity computation model.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第8期184-188,206,共6页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家重大工程资助项目(X2JQB1100060)
关键词
产品系统
实例检索
结构相似度
有向模糊图
Product system
Case retrieval
Structural similarity
Directed fuzzy graph
