The Response of an Elastic Disk With a Moving Mass System

[+] Author and Article Information
W. D. Iwan

Department of Applied Mechanics, California Institute of Technology, Pasadena, Calif.

K. J. Stahl

IBM Corporation, San Jose, Calif.

J. Appl. Mech 40(2), 445-451 (Jun 01, 1973) (7 pages) doi:10.1115/1.3423004 History: Received October 01, 1971; Revised April 01, 1972; Online July 12, 2010


An investigation of the dynamic response of a circular elastic disk excited by a moving mass-spring-dashpot system is presented. Three distinct types of unstable response are observed. A stiffness instability region occurs immediately above each critical speed of the disk. Other regions of instability arise as a consequence of modal interaction. A terminal instability region exists for all load speeds above a certain limiting value. The presence of viscous dissipation in the loading system may destabilize the total system.

Copyright © 1973 by ASME
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