Papers by Author: Wen Qiang Li

Abstract: From the angle of function design, based on the theory of FBS, this paper put forward a product innovation design method based on the model of FM-FBS, combined with the analysis process of function migrating. After systematically analyzing the mapping unit and the situation of calling knowledge resources, a process of product innovation design based on this model was proposed. Finally, an example of the nailing machine was taken to prove the validity and practicability of the method.

Abstract: Product conceptual design is the most significant process during product design and manufacture. As the headstream of conceptual design, the recognition, classification and restructuring of product innovation opportunity play a decisive role in the subsequent design and manufacture. Based on AHP method and kano model, this paper made an organization, classification and restructuring of product innovation opportunity to realize the multi-opportunity conceptual design. The electric water heater was taken as an example to testify the feasibility of the method.

Abstract: Abstract. In the process of electromechanical products innovative design, a lot of domain knowledge is involved. Present method of knowledge classification and organization based on subjects has limited its integrated use. Thereby, a new method based on functional attributes of knowledge is proposed in this paper. Principles of clustering based on the characteristics of domain knowledge are also put forward. At last, sub-modules are further detailed and a tree of domain knowledge is formed. This method is conducive to knowledge reuse, update and retrieval, and lay a good foundation for the establishment of a database.

Abstract: Abstract. Aiming at the need of multi-objective optimization design of the common beam in engineering, this paper optimized the beams’ carrying capacity and anti-vibration ability based on optimization design platform of Isight, which integrated ProE and Ansys software. Through automatic iteration of the beam’s 3D modal data and simulation results, one ideal optimization solution can be obtained by using NLPQL algorithm. Compared with initial design, optimization Results’ performance parameter improved markedly. This standard method and steps can be promoted to engineers, which involve beam’s finite element analysis and design optimization.

Abstract: To make knowledge retrieval better aid designers for product creative design, according to the analysis of the characteristics of various stages of product design, the knowledge was classified. Combined with the characteristics of knowledge resources, aiming at new type, improving type and tracking type, this paper proposed three knowledge retrieval strategies, including function solution, technical solution, special solution, and formed a knowledge retrieval framework. According to the cognitive process of conceptual design, a knowledge retrieval application was discussed.

Abstract: The current developed computer aided innovation software is mainly based on universal principle, and it is difficult in providing field knowledge support for the industry and product design. This paper is based on FBS model, systematically discusses the constructing principle of domain knowledge base from the aspect of knowledge acquisition, representation and retrieval. Finally, through an example of the improvement of the cylinder control, which prove the practicability of the Domain Knowledge Base.

Abstract: The objective of product design is to meet some function demand of people and the goal of product innovation is to realize product function innovation. Based on this, the paper proposes a new mode of product function decomposition and a strategy method system facing product function innovation, which contains function conflict solved strategy, function relation established strategy, function removed strategy, function replaced strategy and potential-function inspired strategy. The six strategies can assist designers in product function innovation effectively based on analyzing the interrelationship between each sub-function of the product. Finally, a concrete example of the agricultural miniature rototiller is demonstrated the usage of the six strategies, which illustrates the effectiveness of these innovation strategies.

Abstract: TRIZ theory is employed to design an automatic picking hook device on the dumper unloading line in thermal power plant. First and foremost, engineering parameters is listed to establish TRIZ model of practical problem, then relevant solving inventive principles is found by using conflict matrix, finally an innovative design is made and an automatic picking hook device is being initially proposed in this issue. This device can reduce not only the online failure rate, but also the labor intensity and operation difficulty.

Abstract: Patent which as a carrier of knowledge contains abundant information, is an important resource of supporting innovative design. Based on the analysis and organization of the patent information of mechanical and electrical fields, this article proposes a proprietary database system for product design innovation. Through a combination of TRIZ and FBS solution process, it can provide support in the product design stage. Finally, an example of folding bike design is listed to explain the application of the patent knowledge base.

Abstract: In order to help the designer collect relative materials from expanding Internet, a product innovation design knowledge acquisition system based on MAS has been developed. Information on the Internet can be divided into structured data, non-structured data and semi-structured data, and two different acquisition processes from different sources were established. Based on aforementioned, the framework of the system was established with federal system of MAS. Layered structure feature was applied in each internal federal system. Finally, the development environment was selected, and three-tier B/S architecture was adopted. Each function modules with system were fulfilled by programming.