This chapter presents several introductory concepts of attitude manoeuvres commonly used by spacecraft. The attitude of a spacecraft is described by the orientation of the body‐fixed principal frame (oxyz) with the axes i1, I2, I3, respectively. The torque impulse causes an instantaneous change in the angular momentum, equal to the value of the torque at the instant of impulse application, and is therefore said to produce an impulsive manoeuvre. The repeated use of an attitude thruster‐based reaction‐control system for manoeuvring a spacecraft entails a large propellant expenditure. Since the cost of a space mission greatly depends upon the propellant mass to be carried by the spacecraft, a saving of the propellant by employing other means of attitude manoeuvring is much sought after. One such method is the use of rotors mounted on the spacecraft.
Attitude Manoeuvres
Foundations of Space Dynamics ; 323-337
2021-02-01
15 pages
Article/Chapter (Book)
Electronic Resource
English
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