Research On Approaches And Techniques Of Generalized-feature-based Design Innovation

In the 21st century, product design, which used to focus on technologies, is turning around individualized design with emphasis on specific customer or customer group. But traditional feature-based design can't respond to the fast and irrational change in the market because its limitation to product's geometric feature hinders the seamless communication between designer and customer. To solve this dilemma, and to offer new solutions to computer aided design innovation, we put forward a complete set of generalized-feature-based approaches and techniques of design innovation for products correlative with human body. In this research, we cmphasize on studies and application of 3D reconstruction of human bead, key techniques of generalized-feature, ergonomics design based on generalized-feature and ergonomics-analysis-based design innovation. We also develop a prototype system to support the product innovation for glasses design and wearing to test the above methodologies and approaches. Fustly, this thesis presents the trend of amstotner-oriented product design in the 21?century. And due to its contradiction with the limitation brought out by traditional feature-based design, this diaptcr ends with a caElusion that it is essential to find new solutions to support design innovation based on previous work of feature-based design. In the discussion of key techniques of generalized-feature-based design, three parts are studied in detail. To extract customer's physiological feature, a photo-based feature extraction method is applied. To extract product's abstract feature, we take style as an example and offer two solutions. As the basis of implementing intuitioniszic adaptation between customer and product, a 3D reconstruction method to rebuild customer's head is also introduced. This thesis also advances an ergonomics design model in product design. And taking glasses design for instance, an ergonomics adaptation method and a visibility evaluation method, which are both key problems in generalized-feature-based ergonomics design, are deeply studied. In the cud, the architecture and technique solutions of its main modules of a computer aided design innovation prototype system for glasses design and wearing are presented. The introduction of generalized-feature effectively fuses three main innovation headsprings of product design: product, user and usage environment, banding together the relationship between product and human. Ergonomics design based on it, by implementing layered parametric design, transfiguration design and intelligent design, further supports the digitalization of this relationship and design automation. It is anticipated that our study "Research on Approaches and Techniques of Generalized-feature-based Design Innovation"will offer more capacious room for computer aided product innovation.