Abstract
Inserting a satellite into different orbit of injection orbit require an orbital maneuver. In addition, the orbit maneuver needs a suitable control of upper stage. Providing required angles is the duty of this control and it must be able to come over disturbances. This paper, with looking over Attitude Control Systems (ACS) used in upper stages, introduces an algorithm for design and sizing of upper stage`s ACS considering requirements and constraints. The algorithm derives required ACS propellant mass, tanks value, feeding pressure, amount of thrust, combustion chamber pressure and total mass of ACS. Presented algorithm needs minimum inputs and estimates the outputs using accuracy experimental functions and scientific theorems. Finally the algorithm is validated by some real cases.
Published Version
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