Optimum Design of Four-Bar Crank Mechanisms With Prescribed Extreme Velocity Ratios

[+] Author and Article Information
M. Savage, D. H. Suchora

Division of Solid Mechanics, Structures, and Mechanical Design, Case Western Reserve University, Cleveland, Ohio

J. Eng. Ind 96(4), 1314-1321 (Nov 01, 1974) (8 pages) doi:10.1115/1.3438512 History: Received May 03, 1973; Online July 15, 2010


The design of four-bar crank mechanisms to have prescribed maximum and minimum angular velocity ratios is treated. The mechanisms are optimized by minimizing their maximum pressure angles. Two design procedures, based on the collineation axis theorem are presented: one uses the computer, the other graphical constructions. Worked out examples using both techniques are included. The paper also presents property charts for the four-bar crank mechanism which aid in the practical selection of this device.

Copyright © 1974 by ASME
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