RESEARCH PAPERS: Design Automation Papers

Optimum Design of a Four-Bar Linkage Whose Coupler Path Has Specified Extremes

[+] Author and Article Information
M. Tranquilla

Union Special Machine Company, Chicago, Ill.

J. Eng. Ind 94(2), 483-487 (May 01, 1972) (5 pages) doi:10.1115/1.3428179 History: Received June 15, 1971; Online July 15, 2010


The synthesis problem of specifying the extremes of a coupler path of a four-bar linkage is presented. Equations are derived to specify that a precision point be an extreme of the coupler path. Other portions of the path are considered as well. Constraints are imposed which limit the width of the coupler path, the locations of the crankshaft and rockshaft, and which guarantee that the input crank will make a full revolution. This suggests using a mathematical programming technique (i.e., optimization) to solve the synthesis problem. A graphical method is developed to obtain an initial trial design for the mathematical programming technique. An example problem is then solved.

Copyright © 1972 by ASME
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