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Attitude Control of Small Probes for De-orbit, Descent and Surface Impact on Airless Bodies Using a Single PWM Thruster

Howells, Gareth, Gillham, Michael (2017) Attitude Control of Small Probes for De-orbit, Descent and Surface Impact on Airless Bodies Using a Single PWM Thruster. In: Proceeding of 6th International conference on Space Mission Challenges for Information Technology. . IEEE ISBN 978-1-5386-3462-2. (doi:10.1109/SMC-IT.2017.16)

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http://dx.doi.org/10.1109/SMC-IT.2017.16

Abstract

A single thruster attitude and de-orbital control method is proposed, capable of delivering a small spin stabilized probe with payload to the surface of an airless body such as the Moon. Nutation removal, attitude control and fast large angle maneuvers have been demonstrated and shown to be effective using a commercially available single standard cold gas pulse width modulated controlled thruster model. Maximum final impact angle due to drift and residual velocities was found to be less than 5 degrees and the maximum angle of attack to be 4 deg. The conventional 3-axis control would require as many as twelve thrusters requiring a more substantial structure with complex pipework, and a more sophisticated controller. The single thruster concept minimises the mass requirement and thus cost of the mission, making the concept of small networked surface probes for extended science missions more viable. Experiments based on computer simulation have shown that strict design and mission profile requirements can be fulfilled using the single thruster control method.

Item Type: Conference or workshop item (Proceeding)
DOI/Identification number: 10.1109/SMC-IT.2017.16
Uncontrolled keywords: single thruster; attitude control; surface penetrator; air-less body; space network; communication; navigation
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics (see also: telecommunications)
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Image and Information Engineering
Depositing User: Gareth Howells
Date Deposited: 21 Jul 2017 14:38 UTC
Last Modified: 29 May 2019 19:14 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/62374 (The current URI for this page, for reference purposes)
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