Research Projects

Statistical energy analysis (SEA) is the only reliable method to predict the vibration of avionic decks due to high frequency random excitation during lift-off and transonic regime. Compared to SEA, Boundary element methods (BEM) is effective only in the low frequency regime. Currently the expertise in this field in ISRO is very limited. Hence SEA analysis has to be carried out for a typical launch vehicle avionic deck assembly and has to be validated using experiments at Agni solid rocket motor facility. The launch vehicle deck with simulated avionic packages will be placed in the aeroacoustic ambience from a solid rocket motor at Agni facility and the acoustic and vibration spectra at salient points will be measured. The experiments, data analysis and modal characterization will be planned at SMP andETF. The SEA simulation to be carried by the experts in the academia.