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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Hindawi Limited
1997-01-01
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Series: | Shock and Vibration |
Online Access: | http://dx.doi.org/10.3233/SAV-1997-4407 |
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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 |
work_keys_str_mv |
AT craigcsmith basicmechanicalinteractionsinshakertesting AT forrestlstaffanson basicmechanicalinteractionsinshakertesting |
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