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Accession Number
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N20120014221
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Title
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Application of the Semi-Empirical Force-Limiting Approach for the CoNNeCT SCAN Testbed.
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Publication Date
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Sep 2012
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Media Count
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40p
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Personal Author
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J. C. Akers L. D. Staab M. E. McNelis T. M. Jones V. J. Suarez
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Abstract
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The semi-empirical force-limiting vibration method was developed and implemented for payload testing to limit the structural impedance mismatch (high force) that occurs during shaker vibration testing. The method has since been extended for use in analytical models. The Space Communications and Navigation Testbed (SCAN Testbed), known at NASA as, the Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT), project utilized force-limiting testing and analysis following the semi-empirical approach. This paper presents the steps in performing a force-limiting analysis and then compares the results to test data recovered during the CoNNeCT force-limiting random vibration qualification test that took place at NASA Glenn Research Center (GRC) in the Structural Dynamics Laboratory (SDL) December 19, 2010 to January 7, 2011. A compilation of lessons learned and considerations for future force-limiting tests is also included.
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Keywords
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Dynamic response
Dynamic structural analysis
Impedance
Lessons learned
Mathematical models
Navigation
Payloads
Random vibration
Space communication
Vibration tests
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Source Agency
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National Aeronautics and Space Administration
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NTIS Subject Category
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84G - Unmanned Spacecraft
84C - Manned Spacecraft
51E - Avionics
76C - Navigation & Guidance System Components
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Corporate Author
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National Aeronautics and Space Administration, Cleveland, OH. NASA John H. Glenn Research Center at Lewis Field.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1307
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Contract Number
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N/A
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