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Pogo Analysis on the KSR-III Propulsion Feeding System  

O. M. Menshikova (Keldsh Research Center)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.6, no.3, 2002 , pp. 45-52 More about this Journal
Abstract
This article deals with the introduction of longitudinal instability of liquid rocket (pogo) and the analytical results on the frequency responses of Korean Sounding Rocket (KSR-III) propulsion feeding system. Both the stiffness of bellows and the cavitation volume of venturi affect the frequency response of the feeding system. Especially, bellows has a great roll to reduce the natural frequency of the feeding system. Also, oxidizer and fuel feeding systems of the KSR-III have natural frequencies of about 280Hz and 90Hz, respectively.
Keywords
longitudinal instability; pogo; rocket propulsion system;
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