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Analysis of Rocket Booster Separation from Air-Breathing Engine with Kane's Method  

Choi, Jong-Ho (국방과학연구소 1기술본부 5부)
Lim, Jin-Shik (국방과학연구소 1기술본부 5부)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.13, no.3, 2009 , pp. 41-49 More about this Journal
Abstract
The present paper describes a mathematical modeling and simulation of the separation of a solid rocket booster from an air breathing engine vehicle. The vehicle and booster are considered as a multi-connected body and the booster is assumed to move only along the axial direction of the vehicle. The dynamic motion of the vehicle and the booster were modeled by using Kane's method. The aerodynamic forces on the whole system along various positions of booster were calculated by using DATCOM software and the internal pressure force acting on the effective surface during separation was simply calculated with gas dynamics and Taylor MacColl equation. Numerical simulation was done by using Mathworks-Matlab. From the result, the variation of Mach number and angle of attack are not large during the separation, so the variation of pitch angle and the characteristics of inlet flow for varying the Mach number and angle of attack during the separation test can be identified as neglectable values.
Keywords
Booster Separation; Multibody; Kane; Modeling;
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