Basic Mechanical Interactions in Shaker Testing

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...

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Bibliographic Details
Main Authors: Craig C. Smith, Forrest L. Staffanson
Format: Article
Language:English
Published: Hindawi Limited 1997-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.3233/SAV-1997-4407
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spelling doaj-7d8f19ecffd54ca784fa579a8083e7102020-11-25T00:19:24ZengHindawi LimitedShock and Vibration1070-96221875-92031997-01-014426928010.3233/SAV-1997-4407Basic Mechanical Interactions in Shaker TestingCraig C. Smith0Forrest L. Staffanson1Department of Mechanical Engineering, Brigham Young University, Provo, UT 84602-4102, USADepartment of Mechanical Engineering, Brigham Young University, Provo, UT 84602-4102, USASimple 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.http://dx.doi.org/10.3233/SAV-1997-4407
collection DOAJ
language English
format Article
sources DOAJ
author Craig C. Smith
Forrest L. Staffanson
spellingShingle Craig C. Smith
Forrest L. Staffanson
Basic Mechanical Interactions in Shaker Testing
Shock and Vibration
author_facet Craig C. Smith
Forrest L. Staffanson
author_sort Craig C. Smith
title Basic Mechanical Interactions in Shaker Testing
title_short Basic Mechanical Interactions in Shaker Testing
title_full Basic Mechanical Interactions in Shaker Testing
title_fullStr Basic Mechanical Interactions in Shaker Testing
title_full_unstemmed Basic Mechanical Interactions in Shaker Testing
title_sort basic mechanical interactions in shaker testing
publisher Hindawi Limited
series Shock and Vibration
issn 1070-9622
1875-9203
publishDate 1997-01-01
description 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.
url http://dx.doi.org/10.3233/SAV-1997-4407
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