典型工艺实例评估的多目标群决策方法  

Exploring Multi-Objective Colony-Decision Method for Evaluating Typical Process Case Candidates(TPCCs)

作　　者：刘书暖[1] 田锡天[1] 耿俊浩[1] 张振明[1] 

机构地区：[1]西北工业大学CAPP与制造工程软件研究所,陕西西安710072

出　　处：《西北工业大学学报》2008年第5期649-654,共6页Journal of Northwestern Polytechnical University

基　　金：国家863计划CIMS基金(2003AA411041);西北工业大学引进人才科研启动基金资助

摘　　要：准典型工艺实例定义为工艺数据挖掘出的候选工艺实例,准典型工艺实例经过评估才能被确定是否为典型工艺实例。为了对准典型工艺实例进行评估,文章提出多目标群决策方法。文中定义了典型工艺实例的评估准则;针对其中的潜在作用准则,确定生产成本、生产效率、加工工艺性和产品质量4个评估目标,建立了典型实例评估的多目标群决策数学模型,采用群决策协调权法对准典型工艺实例进行排序,最优的实例即为典型工艺实例;以典型工艺路线为例,验证了评估方法的正确性和有效性。Aim. To our knowledge, there is no paper in the open literature dealing with the evaluation of TPCCs; such evaluation is necessary for the in-depth application of computer aided process planning （CAPP）. In section 1 of our explorative paper, we establish the four criteria for evaluating TPCCs： validity, understandability, originality and potentiality. Fig. 1 in the full paper gives the evaluation flowchart. In section 2, we explain the multi-objective colony-decision method for evaluating TPCCs. Subsection 2.1 gives the mathematical model of the method~ subsection 2.2 defines the coordination weight and the approximation degree for the method; subsection 2.3 presents the TPCC evaluation algorithm, which uses a seven-step procedure to put the TPCCs in order. Section 3 gives the analysis of a numerical example. In this section, we first define the four TPCC evaluation factors： production cost, production efficiency, machining processability and product quality~ then we asked four process planners to give priorities to five TPCCs. On the basis of the priorities they give, the five TPCCs should be put in the following order： TPCC2, TPCCs,TPCC1 ,TPCC4 and TPCC3.

关 键 词：多目标 群决策 典型工艺实例 工艺知识评估 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程] TH162[自动化与计算机技术—控制科学与工程]