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RESEARCH PAPERS: Mechanisms Papers

Mobility Conditions for Planar Linkages Using Triangle Inequality and Graphical Interpretation

[+] Author and Article Information
A. Midha, Zhen-Lu Zhao

Department of Mechanical Engineering, China Institute of Mining Technology, Xuzhou, Jiangsu, People’s Republic of China

I. Her

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907

J. Mech., Trans., and Automation 107(3), 394-399 (Sep 01, 1985) (6 pages) doi:10.1115/1.3260729 History: Received July 10, 1984; Online November 19, 2009

Abstract

The triangle inequality concept is utilized in formulating the mobility conditions for a planar four-bar linkage. These conditions are used to investigate crank existence and mobility region for the linkage. More significantly, a manifest graphical interpretation is offered, enabling an expeditious mobility determination. A computer-aided graphics approach lends itself to relevant computations with greater speed and accuracy. The concept is further exemplified by means of a more complex planar linkage.

Copyright © 1985 by ASME
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