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Modal Testing and Shaker Excitation: Setup Considerations and Guidelines
Technical Paper
2011-01-1652
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Electrodynamic shakers or exciters are commonly used in experimental modal analysis. The practical aspects regarding the setup of the shakers, stingers and transducers are often the source of test difficulties and avoidable measurement errors. This paper reviews the basics of shakers as beneficial to modal testing, and common problems associated with setup issues and resulting measurement errors. These include shaker alignment, sensor's considerations, stinger selection, amplifiers, reciprocity assumptions and other test related circumstances.
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Citation
Peres, M. and Bono, R., "Modal Testing and Shaker Excitation: Setup Considerations and Guidelines," SAE Technical Paper 2011-01-1652, 2011, https://doi.org/10.4271/2011-01-1652.Also In
References
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- IEEE “Registration Authority Tutorials, IEEE Standard 1451.4” http://standards.ieee.org/develop/regauth/tut/
- The Modal Shop “Modal Shaker Setup” http://www.modalshop.com/video.asp
- Zimmerman, R. D. “Exciter Stinger” Quixote Measurement Dynamics, Inc., Document 59006 November 1985
- Cloutier, D. Avitabile, P. Bono, R. W. Peres, M. A. “Shaker/Stinger Effects On Measured Frequency Response Functions” Proceedings of the XXVII IMAC Conference Orlando, Florida, USA 197 203 February 9-12 2009
- Olsen, N. L. “Using and Understanding Electrodynamic Shakers in Modal Applications” Proceedings of the IV IMAC Conference Los Angeles, California, USA 1160 1167 February 3-6 1986