Knowledge-based Collaborative Remote Analysis System For Mass Customization Product

As an important technology to ensure product's development quality, speed and performance, the finite element analysis (FEA) has caught more and more attention from the enterprises during the research and development process of product. However, there are many problems in practical applications, such as the cost, difficulty and time-consuming of analysis process and training cost of analysis personnel. In order to share the resources and services of CAE software and improve analysis efficiency, a web-based collaborative remote analysis system for mass customization (MC) product is developed, which is based on the standardization, template and knowledgeable of CAE modeling and analysis process. The paper illustrates that master model development of products and parameterization of FEA modeling are the basic means of realizing the standardization and template of analyzing model, and the CAE knowledge reuse of product structure and the intelligentialization of analyzing process are actualized through the induction and summing-up to the previous analyzing data.Meanwhile, to realize analysis knowledge reuse and improve the speed and quality of pre-process modeling, an expert system for FEA pre-process modeling is built. The system structure, function and implementation methods are emphasized in detail. In the paper, the knowledge reuse is illustrated as the key technology to realize intelligent FEA modeling. The experts' experiences, theories and typical examples and other related knowledge, which will be used in the stage of pre-process in FEA, are categorized into analysis process and object knowledge. Then, the integrated knowledge model based on object-oriented method and rule based method is described. And the knowledge will be stored into relational database. The integrated reasoning process based on CBR (case based reasoning) and RBR (rule based reasoning) is also presented to construct the knowledge base.On the foundation of above theories, the system framework, function and realization technologies are given for the remote analysis system. The software model of Browse/Server (B/S) is used in the system. Also the technology of Active Server Pages (ASP) is adopted to build the system pages and the SQL Server to construct the system database after analyzing the database structure by PowerDesigner. The Microsoft Internet Information Server (IIS) is chose to manage the server. Further more, a remote analysis solver built with Visual C++ and commercial finite element software is developed on the server side.Finally according to the characteristics of the modularization of machine tool, a knowledge base for machine tool is built and a detailed analysis process for machine tool's column is taken as example. The validity of the system is proved to provide cheap and fast engineering analysis services for the enterprises with bearable expenses. Therefore the periodic achievements of the system are realized for further research.