BibTeX
@MISC{Fatigue01closed-loopcontrol,
author = {For Sonic Fatigue},
title = {Closed-Loop Control},
year = {2001}
}
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Abstract
This article documents recent improvements to the acoustic control system of the Thermal Acoustic Fatigue Apparatus (TAFA), a progressive wave tube test facility at the NASA Langley Research Center, Hampton, VA. A brief summary of past acoustic performance is first given to serve as a basis of comparison with the new performance data using a multipleinput, closed-loop, narrow-band controller. Performance data in the form of test section acoustic power spectral densities and coherence are presented for a variety of input spectra including uniform, band-limited random and an expendable launch vehicle payload bay environment
Keyphrases
closed-loop control new performance data article document recent improvement progressive wave tube test facility nasa langley research center past acoustic performance input spectrum thermal acoustic fatigue apparatus acoustic control system brief summary performance data narrow-band controller band-limited random
