Defect-free synthesis of Stephenson-III motion generators

The main purpose of this article is to present a method for the dimensional synthesis of Stephenson-III motion generators without order, circuit, and branch defects. Using the concepts of the coupler curve of a four-bar linkage, the accessible region of a dyad, and the geometric feature of dead-cent...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2008-12, Vol.222 (12), p.2485-2494
Main Authors: Hwang, W-M, Chen, Y-J
Format: Article
Language:English
Subjects:
Accessibility
Circuits
Defects
Dimensional analysis
Feasibility
Generators
Mathematical analysis
Mechanical engineering
Motion control
Optimization
Synthesis
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Summary:The main purpose of this article is to present a method for the dimensional synthesis of Stephenson-III motion generators without order, circuit, and branch defects. Using the concepts of the coupler curve of a four-bar linkage, the accessible region of a dyad, and the geometric feature of dead-centre configurations, a procedure is proposed for identifying the different circuits and branches of a Stephenson-III mechanism. Using the characteristics of order, circuit, and branch defects, the constraint equations to avoid them are presented. An optimization approach is proposed for the dimensional synthesis of defect-free Stephenson-III motion generators. An example is given to demonstrate the feasibility of the proposed method.
ISSN:0954-4062
2041-2983
DOI:10.1243/09544062JMES994