Dynamic Motion Analysis of Plane Mechanisms With Coulomb and Viscous Damping via the Joint Force Analysis

[+] Author and Article Information
Cemil Bagci

Department of Mechanical Engineering, Tennessee Technological University, Cookeville, Tenn.

J. Eng. Ind 97(2), 551-560 (May 01, 1975) (10 pages) doi:10.1115/1.3438619 History: Received June 10, 1974; Online July 15, 2010


Analysis of response of determinate plane mechanisms to known driving input force, or input torque, via the joint force analysis is presented. Coulomb damping and viscous damping forces in the pair bearings are included. Equations of dynamic equilibrium are solved for the components of the normal joint forces and for the motion of the mechanism as initial-value problems. The rotation of the resultant joint force, due to the fact that the pair member on a link is the inner member or the outer member of the pair, is considered by defining a generalized Coulomb damping force. Links of the mechanisms are considered rigid. The plane 4R and slider-crank switch mechanisms are investigated. Explicit solutions and numerical examples are given.

Copyright © 1975 by ASME
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