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http://dx.doi.org/10.6108/KSPE.2015.19.1.068

Analysis of Unsteady Combustion Performance in Solid Rocket Motor with Pintle  

Ki, Taeseok (The 4th R&D Institute, Agency for Defense Development)
Ha, Dongsung (The 4th R&D Institute, Agency for Defense Development)
Jin, Jungkun (The 4th R&D Institute, Agency for Defense Development)
Lee, Hosung (The 1st R&D Institute, Agency for Defense Development)
Yoon, Hyungull (The 4th R&D Institute, Agency for Defense Development)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.19, no.1, 2015 , pp. 68-75 More about this Journal
Abstract
In this paper, unsteady characteristics of pressure in solid rocket motor were analyzed by using response of pintle actuation, pressure and thrust data from ground test. Pressure and thrust in solid rocket motor can be controlled in real time by varying nozzle throat area with pintle, installed in the valve. Unsteady characteristics of pressure can be observed in this system occurred by various reasons. Two critical reasons, error of pintle actuation and ablation of center tube, are found and effects of each reason can be analyzed individually by re-prediction of pressure with response of pintle actuation and analyzing thrust to pressure ratio.
Keywords
Actuation; Internal Ballistic; Pintle; Solid Rocket Motor; Stroke Control;
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