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DYNAMIC MODELING OF INNOVATING
PROCESS OF MECHANICAL PRODUCTS
SUPPORTING
COMPUTER-AIDED CONCEPTUAL DESIGN
ZHAO Hong1 HUANG Hongzhong2
(1. Key Laboratory of Ministry of Education for Preci-sion & Non-traditional Machining Technology,
Dalian University of Technology, Dalian 116023;
2. School of Mechanical and Electrical Engineering,
University of Electronic Science and Technology, Chengdu 610054
)
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Abstract: It
is discussed that when a mechanical product is under innovation, the
changes in its working background and the varying market requirements
have critical impacts on the conceptual design process. Characterizing
this kind of innovation process, a dynamic model of E-R-F-B-S
(environment, requirement, function, behavior and structure) is put
forward, which is featured by the directed mappings between the five
kinds of variable sets. Named innovation chains, four kinds of
innovation patterns of the mechanical products depicting the designers’
usual trains of creative thoughts in the design activities are
outlined, represented by the directed combination of the seven mapping
units in the E-R-F-B-S model. The mathematical model of innovation chain
is established by determining the correspondence between innovation
chain and directed graph, then directed graph and sparse matrix, thus
making it possible to suggest the setting up of a computer-aided
reasoning system for conceptual design, sparse matrices acting as its
input variables. A simple case study is presented to illustrate the
proposed approach.
Key words: Product innovation Conceptual design
Mapping between variable sets Innovation chain
Directed graph Sparse matrix
CLC No: TH122 TP39
国家自然科学基金(50175010)、高等学校全国100篇优秀博士学位论文作者专项基金(200232)、教育部优秀青年教师资助计划(1766)和辽河石油勘探局资助项目. Received 20051220, received in revised form 20060509
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