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Guan Liwen
Wang Liping
Division of Micro/nano Manufacturing
State Key Laboratory of Tribology, Tsinghua University,
Beijing 100084, China
Wang Zhixing
School of Mechatronic Engineering, Harbin Institute of
Technology,
Harbin 150001, China
Ma Qingxin
Qiqihaer Second Machine Tool Group, Qiqihaer 161005, China |
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CASE-BASED
SIMILAR METHOD
FOR CONCEPTUAL
DESIGN
OF MECHANICAL PRODUCTS*
Abstract: A case-based similar design method is proposed for design concept generation of mechanical products. At first design requirement model and concept case model are established. Design requirement model is a tree-like data structure with three branches: usage branch, function branch and design restrict branch whose leaves denoting design requirement items. Concept case model is a tree-like data structure with four branches: usage branch, function branch, character branch and structure branch. Concept cases are put into a concept case base. Conceptual design compares design requirement with each concept case in the concept case base. Comparing result is measured by similar
degree. Finally concept case is selected according to concept
cases sorting result by similar degree. The key problems are discussed such as similar item generation, similar degree calculation, etc.
Key words:
Conceptual design Similar design Mechanical product |