Velocity Fluctuation in Four-Bar Linkages and Slider-Crank Mechanisms

[+] Author and Article Information
F. Freudenstein

Mechanical Engineering, Columbia University, New York, N. Y.

E. J. F. Primrose

Department of Mathematics, University of Leicester, Leicester, England

S. Ray

Otis Elevator Co., Engineering Center, Mahwah, N. J.

B. Laks

Department of Mechanical Engineering, Columbia University, New York, N. Y.

J. Eng. Ind 98(4), 1255-1259 (Nov 01, 1976) (5 pages) doi:10.1115/1.3439095 History: Received May 26, 1976; Online July 15, 2010


Velocity fluctuations have been recognized as important in the dynamics and statics of mechanisms with time-varying angular velocities as long ago as the classical transmission-angle problem [1, 2]. The analysis of velocity fluctuations represents a more difficult problem, primarily in view of greater nonlinearity. The present investigation represents an algebraic solution of the velocity-fluctuation optimization problem. This leads to numerically efficient optimization procedures and sheds some light also on other problems, such as certain dwell-type intermittent-motion mechanisms and the synthesis of “constant-velocity” linkages.

Copyright © 1976 by ASME
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