Shock and Vibration

Shock and Vibration / 1997 / Article

Open Access

Volume 4 |Article ID 190274 | https://doi.org/10.3233/SAV-1997-4407

Craig C. Smith, Forrest L. Staffanson, "Basic Mechanical Interactions in Shaker Testing", Shock and Vibration, vol. 4, Article ID 190274, 12 pages, 1997. https://doi.org/10.3233/SAV-1997-4407

Basic Mechanical Interactions in Shaker Testing

Revised19 Jan 1996

Abstract

Simple models representing a shaker and a test object are used to illustrate changes in test object response due to shaker dynamics and differences between the test and service environment. The degree of coupling is quantified in terms of ratios of the natural frequencies and the masses. Regions of overstress can depend on reproducing absolute rather than relative motion in a test. Shaker tests reprodusing output spectra observed in service, when shakerlji.xture impedance is higher than the impedance in service, is shown to cause overtest at frequencies below natural frequencies of the service environment.

Copyright © 1997 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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