产品概念

• With the end of cold - war and the intension of competition of aerospace launch market , people hammer at constantly the performance of products and meanwhile they more concern decreasing the cost
  随着冷战的结束以及航天发射市场竞争的不断加剧，人们在不断提高产品性能的同时，更加关注降低产品成本，而产品概念设计(方案设计)阶段是降低产品成本最有效的阶段。
• Pdm is not limited to managing only the design cycle , but according to user needs , can manage product conception , detailed design , prototyping and testing , manufacturing or fabrication , operation , and maintenance
  Pdm不仅局限于管理设计周期中产生的数据，而且，根据用户的需求，也可用于管理产品概念开发、详细设计、样品试验、生产制造、操作和维护过程中产生的数据。
• And the model is divided into two forms : the case model in the view of users and the case model in the view of the database . by doing so , the cacd system can enhance the ability of making conceptual designs and increase the data store efficiency
  提出了一种的概念设计实例模型，将实例区分为用户视图下的实例和数据库视图下的实例，从而提高了cacd系统生成产品概念设计方案的能力和数据存储效率。
• In this paper , the course of product conceptual design has been reanalyzed from the view of abstract concept , the efficiency of qualitative knowledge has been emphasized , the necessity of application of qualitative reasoning on conceptual design has been pointed out especially
  本文从抽象概念的角度对产品概念设计过程进行了再认识，强调了应用定性知识的效率问题，指出了定性推理在概念设计中应用的必要性。
• The method can estimate the product ' s cost without full knowledge of the manufacturing process plans in product conceptual design phase . cax integration technology with pdm platform is studied . a prototype of cax integration with pdm platform is constructed through com / dcom technology using vc + + 6 . 0
  该方法克服了通常孤立地研究设计各阶段的成本预测和分析的不足，能够在产品概念设计阶段对产品成本作出预报，且精度高于传统方法。
• The subject of this dissertation mainly researches the conceptual design process of mechanical product . it also discussed some methods and technology used for realizing the computer - aided conceptual design process by the example of building a mechanism conceptual design system
  本论文的研究课题主要是对机械产品概念设计过程的研究，并且以计算机辅助机构概念设计系统的建立方法为例探讨了计算机辅助实现概念设计过程的一些方法和技术。
• Due to the great importance of concept design in product development , this thesis emphasizes that bpr is critical to new product development , and discusses the basic concept , approach of the business process reengineering , and the operating and management model of process
  对此，本文从新产品概念设计在产品开发中的地位入手，强调流程再造和优化对新产品概念设计的重要作用，并对流程再造的基本概念、实施步骤，以及流程运行和管理模型进行了研究。
• In virtual enterprises , the knowledge needed by product conceptual design is distributed among its members . therefore it is of vital importance to organize , capture , and integrate the knowledge for enhancing conceptual design evolution and decision - making . the dissertation has systematically researched on problem solving in conceptual design in virtual enterprises , conceptual design information modeling , acquisition of conceptual design knowledge , capturing and integration of the knowledge for conceptual design decision
  在虚拟企业中产品概念设计所需要的知识分布在它的成员企业中，如何组织、捕捉和集成这些知识以实现概念设计的演进和决策，是虚拟企业中基于知识的概念设计所要研究的关键问题。
• Supported by national science foundation of china ( 50175103 ) and national high - tech research and development program of china ( " 863 " ) ( 2002aa411110 ) , conceptual design based on extension theory is studied in the paper , and it has significant theory and engineering value for solving the bottleneck of intelligent conceptual design
  本论文受国家自然科学基金项目( 50175103 )和国家863 cims计划项目( 2002aa411110 )资助，研究基于可拓学理论的产品概念设计方法与系统实现，对于解决概念设计与工程实现的瓶颈问题，具有重要的理论意义和工程价值。