Published: January 12, 2011
Ultra-low-emission combustors being developed for aircraft gas turbine engines are more susceptible to combustion instabilities. Caused by interaction between fluctuating heat release and naturally occurring acoustic resonances, these instabilities can shorten the life of the engine and result in premature mechanical failure. At the NASA Glenn Research Center, a dSPACE system for real-time data acquisition was integrated in a combustor rig for the control of combustion pressure oscillations. The experiment software of the dSPACE system, ControlDesk, is used to describe how the data for the experiment is to be sampled and where it is to be stored. It also creates an animated data display that runs while the experiment is in progress.
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