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RESEARCH PAPERS

Design of High-Stiffness Five-Bar and Seven-Bar Linkage Structures by Using the Concept of Orthogonal Paths

[+] Author and Article Information
Shih -Hsi Tong

Mechanical and Aerospace Engineering Department, University of California, Los Angeles, Los Angeles, CA 90095shihhsi@yahoo.com

J. Mech. Des 128(2), 430-435 (Jun 23, 2005) (6 pages) doi:10.1115/1.2167652 History: Received February 25, 2005; Revised June 23, 2005

This paper presents a new approach for the synthesis of high-stiffness five-bar and seven- bar linkage structures based on the concept of orthogonal paths. The intersection point of two orthogonal paths is the location of a floating joint at which the motion is prevented to the maximum degree. Instead of analyzing link materials, deformations, and joint clearances, the approaches here provide designers with another way to obtain the geometrical configurations of five-bar and seven-bar linkage structures with high stiffness from a kinematic point of view. Two types of linkage structures, five-bar and seven-bar linkages, will be used for high-stiffness synthesis. The complete design procedures are presented for two different cases of each type.

FIGURES IN THIS ARTICLE
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Copyright © 2006 by American Society of Mechanical Engineers
Topics: Linkages , Design , Stiffness
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Figures

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Figure 1

Five-bar and seven-bar linkage structures

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Figure 2

Movable five-bar and seven-bar linkage structures

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Figure 3

Three-bar linkage structures with (a) low stiffness and (b) high stiffness

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Figure 4

Five-bar linkage structures with (a) low stiffness and (b) high stiffness

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Figure 5

Seven-bar linkage structures with (a) low stiffness and (b) high stiffness

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Figure 6

Synthesis of high-stiffness five-bar linkage structure with given four-bar linkage

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Figure 7

Synthesis of high-stiffness five-bar linkage structure with general configuration

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Figure 8

Synthesis of high-stiffness seven-bar linkage structure with given four-bar linkage

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Figure 9

Synthesis of high-stiffness seven-bar linkage structure with general configuration

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