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NEURO-FUZZY NETWORKS IN capp

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Chinese Journal of Mechanical Engineering 2000年第1期13卷 30-34页

作者： Bernard S Maiyo Wang Xiankui Lin Chengying (Department of Precision Instruments and Mechanology, Qinghua University) 清华大学北京

The neuro-fuzzy network (NFN) is used to model the rules and experience of the process planner. NFN is to select the manufacturing operations sequences for the part features. A detailed description of the NFN system development is given. The rule structure utilizes sigmoid functions to fuzzify the inputs, multiplication to combine the if Part of the rules and summation to integrate the fired rules. Expert knowledge from previous process Plans is used in determinning the initial network structure and parameters of the membership functions. A back-propagation (BP) training algorithm was developed to fine tune the knowledge to company standards using the input-output data from executions of previous plans. The method is illustrated by an industrial example.

关键词： Neuro-fuzzy networks Training Semi-generative systems capp

RESEARCH ON capp/SCHEDULING INTEGRATION MULTI-AGENT SYSTEM MODEL AND IMPLEMENTATION

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Chinese Journal of Mechanical Engineering 2003年第4期16卷 348-351页

作者： Wang YunliXiao TianyuanDuan GuanghongWang XiankuiNational CIMS EngineeringResearch Center,Tsinghua University,Beijing 100084, China National CIMS Engineering Research Center Tsinghua University Beijing 100084 China

A design methodology for multi-agent systems is proposed. The systemicframework of capp and scheduling integrated multi-agent system according to design methodology isresearched. Agent model, composition model and cooperation model are discussed respectively in themulti-agent system. Static composition model and dynamic running model of capp and schedulingintegrated system are presented in composition model. Communication model, language model andprotocol model are discussed in corporation model. CSIMAS, capp and scheduling integratedmulti-agent prototype system, is developed to illuminate system model. Multiple non-rotational partsare tested in distributed process planning and scheduling environment of CSIMAS.

关键词： Multi-agent systems Design methodology capp Scheduling Integration

Design and Implementation of an Integrated CAD/capp System Based on PDM

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Wuhan University Journal of Natural Sciences 2002年第2期7卷 161-168页

作者： Peng Wei-ping Chen Li-ping Zhong Yi-fang Zhou Ji CAD Cent. Huazhong Univ. of Sci. and Technol. Wuhan 430074 China

Product data management (PDM) is a new technique that is developed from database management system (DBMS) to manage the information and the associated procedure of a product. Many design engineers have employed PDM tools to coordinate and control access to documented versions of product designs. But it is still a focus of research efforts in industry and academic how to further build an efficient and effective integrated product/process development environments (IPDEs) based on PDM to meet requirements of enterprises. This paper introduces the approach to design and implementation of an integrated CAD/capp system (IC2S) based on PDM. This system is an important compent of computer integrated manufacturing system in KELON Inc(Kelon-CIMS). It is mainly used to support for the design and development of the home electric appliances (HEA).

关键词： integrated CAD capp PDM system model

Development of capp System for Small and Medium Size Apparel Enterprises

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Journal of Donghua University(English Edition) 2006年第5期23卷 68-71页

作者：尹玲张文斌 Fashion Institute Donghua University

Existing computer-aided process planning （capp） systems for garment manufacturing emphasize all-purpose ones, lack specialism and availability. So, few developed is popular in the garment industries. This study is intended for developing a capp system, which aims at the actual condition of process planning in the small and medium size apparel enterprises （SMAs）. It enables the technologists of process planning to be quicker in generating suitable plans that are similar to existing styles or new. It also automatically provides labor cost by considering the shop-ricer caztiticns. Process planning is achieved by adopting the Hybrid Interactive-variant process planning mete. The proposed system has been realized in Borland Delphi 7 and Orade 8. For validation of the system, the software has been implemented successfully in a firm named Jingchen in China.

关键词： capp apparel enterprises Hybrid Interactivewriant process planning.

The Development of Gear Pump CAD/capp Based on Solid Works

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厦门大学学报（自然科学版） 2002年第S1期41卷 145-147页

作者： ZHOU Feng, LIU Yuan-wei (Dept. of Mechanical Engineering, Huaiyin Institute of Technology, Hua ian 223001, China)

Nowadays, many kinds of software, which have succes sf ully created the integration of CAD, capp and CAM, find their disadvantages in p ractical manufacturing. As a result, it is welcomed to develop small CAD/capp sy stems on a proper CAD platform, which aim at requirements of factories. Based on the one of the most popular three-dimensional design software SolidWorks, we successfully developed a set of gear pump CAD /capp software for Huaiyin Gene ral Factory of Mechanics. 1 The architecture and function of the software According to the need of the enterprises, the general structure of the software contain two subsystems, which are detailed as follows: · The gear pump CAD subsystem contains four main modules, including the optiona l design module of gear pump, module of part design, the module of entity modeli ng and the module of drawing which creates 2 D drawings of parts and assembly c orresponding 3 D modals. · The gear pump capp subsystem, which is a combination of creative mode and der ivate mode, also includes four modules, they are the module of access to feature s, the module of planning process route, the module of designing process sheets and the module of generating process documents. 2 The developing environment of the system Basing on Windows 98 and SolidWorks2001 platform, this system creates all functi ons by using Visual C++ 6.0 as developing tools. 3 The keys to the CAD/capp integration 3.1 The establishment of product information modal The information of parts is the basis of process planning. In this system, we us e feature modeling to describe the information of parts and assembly of gear pum p, and set up a fundamental basis for the whole system. The information module o f gear pump includes the information of both the assembly and the parts; the par t-describing module uses four-layer structure that is subassembly layer, part layer, feature layer and geometric layer. 3.2 The operation of the information on feature modeling After establishment

关键词： capp CAD The Development of Gear Pump CAD/capp Based on Solid Works

Research on Rapid Response Schematic Design for Flexible Transfer Line capp-Based

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厦门大学学报（自然科学版） 2002年第S1期41卷 174-175页

作者： GAO Ju-hong 1, XU Yan-shen 2 (1. Department of Industrial Engineering, School of Management, Tianjin University, 2. Department of Mechanical Engineering, School of Management, Tianjin Univers ity, Tianjin 300072, China)

To meet the market requirements for Flexible Transf er Line (FTL), which consists of modular NC machining tools of high quality and co st saving, the methodologies and technologies of client-oriented FTL rapid resp onse schematic design capp-based, one of the key techniques, are presented in t his paper. In order to achieve this purpose, an integrated system for integrated design of CAD/capp/FTL with box-type parts is realized. In this paper, firstly the theory of the conceptual design of FTL based on capp is established and the software architecture is developed. The global-domain pr oduct model is put forward to meet with data representation. After the manufactu ring feature is analyzed and decomposed for machining operations, the feature-b ased part unified data model object-oriented is built. Secondly the knowledge- based capp system data model is established. The process planning unit model is formed by work element (WE), which is tool-cell based function abstraction meth od, and has unified layers with respect to designing and manufacturing. With WEs through dynamic response and simultaneous structure in process planning, the pr inciple solution for capp function system can be implemented. Lastly the mapping from process domain to module design domain is built. The unidirectional select ion process based on fuzzy matching technology is easily dealt with computer. Th e algorithm of decision with fuzzy synthetic evaluation method and technology is applied to estimate the feasibility of the results in local working procedure o f modular NC machine tools and make decision of designs in overall FTL, which co nsists of many different factors. The example shows that the rapid response desi gn in bidding-based FTL scheme design is realized.

关键词： capp flexible transfer line product model rapi d response design

Integration of capp with CAD Based on Solid Edge

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厦门大学学报（自然科学版） 2002年第S1期41卷 175-176页

作者： CHEN Dao-li (College of Mechano-Automation, Wuhan University of Science and Tech nology, Wuhan 430081, China)

CAD technique and its software products have been d ev eloped independently of capp, but the market’s requirements on reducing lead-t ime of a new product and promoting automation of design and manufacture processe s need integration of capp with CAD. The base of CAXs’ integration in product d esign and manufacture is information integration. There are several information integration approaches, for example, by data format transition through special d ata interface, or by standard format file for data exchange (e.g. based on S TEP),etc, but the integrating approach based on PDM is a more advanced and effic ient one. The approach is based on a common database. The feature model data of a product created by the CAD sub-system is stored in the common database, and the capp or CAM sub-system can get access to the data for its own work, by whic h repeated input of the data is avoided and data redundancy is eliminated. T he integration approach of capp with CAD discussed in this paper is based on the approach. Solid Edge, one of the CAD software products of UGS company is a 3-D modeling software based on parametric feature modeling technique, which is easy to learn and use, so suitable for small and medium manufacturers’ application. The feature data of the part model created by Solid Edge Part includes geometri c and topologic information of the part which provides basic data needed by capp , but like other 3-D feature-based modeling software, no precision and materia l information which is also essential for capp. In this paper, an approach is pr esented by which the precision features and material features of the part are ad ded into the 3-D CAD part model of geometric feature. So-called precision features include dimension tolerance, shape tolerance and position tolerance and so-called material features include material type and hardness. All these data are expressed by a set of characters which, combined with the surface t ype name of the related geometric feature, i

关键词： capp CAD integration solid edge

The Information Integration of capp in CIMS

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厦门大学学报（自然科学版） 2002年第S1期41卷 182-183页

作者： ZHANG Yu 1, XIONG Man-chen 2 (CIMS Application and Research Center, Faculty of Mechanical and Electr onic Engineering, Kunming University of Science and Technology, Kunming 65009 3, China)

This paper analyzes the flow of the process design an d the fountain of the technique data in a manufacturing enterprise, and discusse s the information flows between capp and other systems in CIMS, such as CAD syst em and Enterprise Resource Planning (ERP) system. And then, it discusses the pla ns of information integration between capp and CAD, as well as between capp and ERP. To design the processes of a product requires the manufacture information, such as blank material and machine tool, which is saved in a database in ERP. General ly, a traditional capp system considers the information of the manufacturing res ources, such as machine tool, as changeless. However, it is real changing, becau se the resources may be occupied or the machine tool may be under repair. Theref ore, in order to design the processes more reasonably, we must consider the real change of resources in a workshop. Creating a public resource database to suppo rt the real change of resources is put forward in this paper. With the public re source database, the resource integration between capp system and ERP is realize d; and by information collections in capp system, such as BOM, the material cons umption and man-hour consumption and their output to ERP, the information integ ration between capp system and ERP is realized.

关键词： CIMS capp ERP information integration techniq ue data

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capp 开发工具工艺决策建模的研究

清华大学学报（自然科学版） 1998年第11期38卷 61-64页

作者：刘丹段广洪雷年胜王先逵清华大学精密仪器与机械学系

工艺决策建模是ＣＡＰＰ开发工具的研究难点，亦是开发工具走向实用化和商品化的瓶颈所在。这里提出了一种决策建模的数学工具——层次分析法（ＡＨＰ），可将复杂的工艺决策问题进行分解、判断和综合，并采用定性与定量相结合的统一处... 详细信息

工艺决策建模是ＣＡＰＰ开发工具的研究难点，亦是开发工具走向实用化和商品化的瓶颈所在。这里提出了一种决策建模的数学工具——层次分析法（ＡＨＰ），可将复杂的工艺决策问题进行分解、判断和综合，并采用定性与定量相结合的统一处理方式来解决难以用数学模型定量描述的工艺决策的通用化建模问题。因此，采用一般方法难以描述的通用工艺决策建模问题，转而采用ＡＨＰ法则能比较容易地满足不同制造企业的工艺设计需求。ＡＨＰ法大大提高了系统的性能和适应性。

关键词： capp 开发工具工艺决策建模层次分析法