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65 ANALYSIS OF CHUGGING IN LIQUID-BIPROPELLANT …
Web1 Oct 2024 · Application of a Double-dead-time Model Describing Chugging to Liquid Propellant Rocket Engines Having Multielement Injectors. TN-D-5303. NASA (1969) … Pogo oscillation is a self-excited vibration in liquid-propellant rocket engines caused by combustion instability. The unstable combustion results in variations of engine thrust, causing variations of acceleration on the vehicle's flexible structure, which in turn cause variations in propellant pressure and flow rate, closing … See more In general, pogo oscillation occurs when a surge in engine pressure increases back pressure against the fuel coming into the engine, reducing engine pressure, causing more fuel to come in and increasing engine pressure … See more • Sci.space.shuttle newsgroup discussions of pogo • NASA Technical Paper on Flexible Propellant Lines Including Pogo Suppressors See more If the oscillation is left unchecked, failures can result. One case occurred in the middle J-2 engine of the second stage, S-II, of the See more • Slosh dynamics See more hiking boulder mountain utah
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