Energy Transfer from High-Frequency to Low-Frequency Modes in Structures

[+] Author and Article Information
A. H. Nayfeh, D. T. Mook

Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

J. Vib. Acoust 117(B), 186-195 (Jun 01, 1995) (10 pages) doi:10.1115/1.2838662 History: Received December 01, 1994; Online February 26, 2008


A perspective of the mechanisms by which energy is transferred from high- to low-frequency modes is presented. The focus is on some recent experiments that reveal how a low-amplitude high-frequency excitation can produce a large-amplitude low-frequency response. Such a phenomenon is potentially harmful, if not catastrophic. Specifically, these experiments clarify the role of internal resonances, combination external and parametric resonances, and the interactions among modes of widely spaced frequencies.

Copyright © 1995 by The American Society of Mechanical Engineers
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