Abstract
Axiomatic design theory is widely used in new product development by providing design solutions through mapping between functional requirements and design parameters. However, the theory does not provide a method to help designer obtain and select design parameters. To this end, this paper introduces patent analysis to overcome the deficiency. Firstly, functional requirements are transformed into patent search terms, and design parameters are obtained from patents. Secondly, morphological matrix is used to represent the relationships between target function and multiple design parameters. Thirdly, design parameters with higher patent frequency are chose and combined into a new scheme. Finally, the scheme is evaluated by the independent axiom of Axiomatic Design theory. The methodology is demonstrated and validated with a case study of spa shower.
Highlights
New product development (NPD) are complex processes to bring a new product to market
Both patent classification number and keywords used for patent queries, there should be related to the function requirements (FRs)
By using the zigzag mapping method in Axiomatic Design Theory and combining the results of the second step of Patent analysis (PA), the total functional requirements can be decomposed into sub-FRs
Summary
New product development (NPD) are complex processes to bring a new product to market. There are three reasons: Firstly, customer’s requirements in the early stage are not clear for unclear statement; Secondly, design parameters are difficult to obtain, especially when designer is lacking experience; Thirdly, Product must avoid violating the granted patents belong to other patentees. These reasons will lead to low R&D efficiency and increased market risk. Designer’s experience is important and reliable for product development, experienced designer is hard to employed and some persons’ knowledge are not enough to meet the requirements of diversified product design. The independent axiom in axiomatic design is used to evaluate the scheme
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