| Mass Customization (MC) is a new advanced manufacturing mode presented at the end of 20th century. And it has become the new competitive frontier in business competition and been paid much attention to by domestic and foreign manufacturing enterprises. Nowadays, a number of experts, scholars and manufacturing enterprises are studying and practicing on it deeply and systematically. For realizing MC in enterprises, lots of technologies on the rapid product design for MC must be resolved and it is becoming the focus of study on the manufacturing area. However, the research results at present aren't adequately mature. So, this paper will study furthermore on the technologies of product rapid design system for MC, including the system structure, key realizing technologies, application and so on. With the research on MC mode and its product design system, this paper presents a new concept about Product Rapid Design System (PRDS) for MC, then researches on the system structure which includes structure system and function system, and researches on the subsystems including Customization Subsystem for individual customers, product rapid modeling subsystem for MC, product transfiguration design subsystem for MC and product data management subsystem for MC. Basing on the concept of PRDS for MC, the article establishes a new framework which includes network environments, key theories, key techniques and application systems. With deeply embedded research, the article also establishes a new method on interactive virtual product modeling, a new method on product family modeling for MC and a new product instance searching method based on the technique of instance reasoning and the active serving mechanism. Finally, on the applicable background of "Chongqing Huayang Cooperation's CIMS Application Engineering (No. 6901-04)", the paper researches on the application of PRDS for MC and finishes the design and application of the PRDS for MC subsystem successfully.
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