Elastodynamic Behaviour Analysis of  Interceptor Flight Vehicle in Space

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Sam, Mostafa | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47303 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Haddadpour, Hassan
Abstract:
In this thesis, the effect of elastodynamic behaviour of an interceptor on it’s trajectory in space and accuracy in desired positioning and situation is investigated. The governing equations of motion are derived and linearized by using the basic equations of motion in the body frame axes and the mode summation method for elastic deformations. In order to control the interceptor, the closed-loop control on the yaw and pitch angles, is considered. The governing equations of motion are solved to determine the time response to investigate the structural effects on the stability, position and situation of interceptor. Finally, the effect of elasticity and vibrations on the interceptor’s sensitive components, such as the seeker is studied
Keywords:
Exoatmospheric Targets ; Dynamic Simulation ; Pulsed Guidance ; Mode-Summation Method ; Elastodynamics ; Generalized Coordinates ; Divert and Attitude Control System (DACS)