Parametric Self-Excitation of a Belt Into Transverse Vibration

[+] Author and Article Information
J. E. Rhodes

Georgia Institute of Technology, Atlanta, Ga.

J. Appl. Mech 37(4), 1055-1060 (Dec 01, 1970) (6 pages) doi:10.1115/1.3408658 History: Received March 11, 1970; Online July 12, 2010


As a belt is taken up on a pulley, a varying tension will be laid down, or “recorded,” as a strain pattern. As the belt pays off, the pattern “plays back” creating a corresponding varying tension on the next span. If the delay is proper, the oscillating tension associated with transverse vibration of a belt span can feed around the belt circuit and parametrically drive the vibration. A belt span may be self-excited into vibration by this mechanism without imperfections in either the belt or pulleys.

Copyright © 1970 by ASME
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