Effect Of Sine Sweep Rate On Modal Parameter Identification

Details Effect Of Sine Sweep Rate On Modal Parameter Identification Effect Of Sine Sweep Rate On Modal Parameter Identification

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.558..153g&link_type=abstract

Proceedings of the 5th International Symposium on Environmental Testing for Space Programmes Noordwijk, The Netherlands (ESA SP-

Computer Science

Scientific paper

Several papers have been published on the effect of sine sweep rate on the response of a one-degree-of- freedom system. These results can be adapted to the context of real-time modal identification techniques applied during qualification test campaigns to improve satellite vibration testing. They can be used before test to find a good compromise for the sweep rate as a function of the expected modes, and after test to estimate the corrections to be done on the extracted modal parameters for a given sweep rate. This paper deals with the quantitative impact of an exponential sweep rate (in octaves/minute) on the modal parameters to be extracted : frequencies, damping values and effective parameters.

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