Research On Information Management Theory Of Virtual Prototype Engineering For Complex Product And It's Application

The technology of Virtual Prototyping is significant for enterprises. It can improve the product quality, shorten the cycle of product design and manufacture, decrease the cost of product thus to improve the competition of the enterprise. The scale of manufacturing system is becoming larger and larger, and the control system is becoming more and more complex along with the development of advanced manufacturing technologies, so the researches on virtual prototyping in single domain or phase is not enough any more, the research on virtual prototype engineering for complex product is necessary now. Information management is the basis of the virtual prototyping engineering for complex product and the performance of information management will affect the performance of virtual prototype directly, because information in virtual prototype engineering for complex product is comprehensive and multiform, which is involved with the full lifecycle, all-around and whole system of virtual prototype for complex product.The paper integrates the context of the National 863/CIMS Program and the tenth five-year projects that national defense grinded in advance, and studies on the information management theory and application requirements of the virtual prototype engineering for complex product systematically, especially on several key techniques: modern information management conceptions; hierarchical, dynamic and coordinate information access control mechanism; process integration; optimization and decision-making of virtual prototyping engineering for complex product. At last, an information management platform of virtual prototype engineering for complex product is designed, implemented and applied. The primary work and remarks of the paper are:(1) The paper carries out a systematic research on modern information management rational conceptions of virtual prototype engineering for complex product. These rational conceptions are: product overall lifecycle management, all-around and whole system management, concurrent management, coordination management, intelligent management and standardization management. All these rational conceptions will guide the development and appliance of the information management system in virtual prototype engineering for complex product.(2) It studies the information access control mechanism in virtual prototype engineering for complex product, which can be divided into three aspects: firstly,...