PROCEDE DE SUPPRESSION D'EFFET POGO

摘要

The invention relates to the field of jet propelled craft and more specifically to a method for eliminating the POGO effect in such a craft (1). A supply system (4) feeding the jet engine (2) of the craft (1) is equipped with a hydraulic accumulator (8) making it possible to select between a number of predetermined operating levels each corresponding to a different volume of gas. According to this method, if a first reference criterion is not satisfied by the current level, the method commands a transition of the hydraulic accumulator (8) preferably to an alternative level, selected from alternative levels for which the first reference criterion is satisfied and for which no hydraulic resonant frequency crosses any current mechanical resonant frequency during the transition.