A Methodology for Conceptual Design of Mechanisms by Parsing Design Specifications
Resource
Journal of Mechanical Design (127),1039-1044
Journal
Journal of Mechanical Design
Pages
1039-1044
Date Issued
2005-11
Date
2005-11
Author(s)
Chen, Dar-Zen
Pai, Wei-Ming
DOI
20060927120047757172
Abstract
In this paper, design specifications for the conceptual design of mechanisms are parsed
into three coherent categories: functional requirements, structural requirements, and design
constraints. Based on functional requirements, the functioning kinematic chain of a
mechanism can be constructed by connecting the functioning links accordingly. From
structural requirements, admissible kinematic structures are searched from the existing
atlases of kinematic structures. Those admissible kinematic structures, which comprise at
least one segment with the same characteristics of the functioning kinematic chain, are
identified as compatible kinematic structures. Thus, feasible mechanisms that fulfill design
specifications can be yielded by labeling joints in the compatible kinematic structures
subject to design constraints. With this methodology, classified design specifications
are used to guide designer through various stages of the conceptual design process in a
systematic manner. The creation of the variable-stroke engine mechanism [Freudenstein,
F., Maki, E. R., 1983, “Development of an Optimum Variable-Stroke Internal-Combustion
Engine Mechanism From the Viewpoint of Kinematic Structure,” ASME J. Mech., Trans.,
Automat., Des., Vol. 105, pp. 259–267] is used as an illustrative example.
Publisher
臺北市:國立臺灣大學機械工程學系
Type
thesis
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