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Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction./
Author:	Rubinsztejn, Ari.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2022,
Description:	136 p.
Notes:	Source: Dissertations Abstracts International, Volume: 84-01, Section: B.
Contained By:	Dissertations Abstracts International84-01B.
Subject:	Aerospace engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29061373
ISBN:	9798834048404

Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction.
Rubinsztejn, Ari.

Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction. - Ann Arbor : ProQuest Dissertations & Theses, 2022 - 136 p.

Source: Dissertations Abstracts International, Volume: 84-01, Section: B.

Thesis (Ph.D.)--The University of Alabama, 2022.

This item must not be sold to any third party vendors.

Low-thrust propulsion methods, and the order of magnitude reduction in required fuel, is an enabling technology for deep-space exploration. Unfortunately, spacecraft with low-thrust levels require long-duration thrusting arcs, making them susceptible to missed thrust events. This investigation describes a new method for designing low-thrust spacecraft trajectories resilient to missed thrust events. The method, called expected thrust fraction, embeds the stochastic nature of missed thrust events into a time-dependent thrust penalty, which can be utilized inside a traditional optimal control solver. Additionally, the theory of expected thrust fraction is expanded to include solar sailing missions and their unique missed thrust behavior. The performance of expected thrust fraction is then characterized on a variety of low-thrust transfers, and its resilience to missed thrust events is compared to previous mitigation techniques. Finally, the technique is applied to NASA's Mars Sample Return mission concept, where the spacecraft's resilience to missed thrust events is improved from 65.4% to > 99%.

ISBN: 9798834048404Subjects--Topical Terms:

686400
Aerospace engineering.
Subjects--Index Terms:

Low-thrust propulsion

Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction.
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245 1 0 $a Design of Missed Thrust Resilient Trajectories Using Expected Thrust Fraction.
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300 $a 136 p.
500 $a Source: Dissertations Abstracts International, Volume: 84-01, Section: B.
500 $a Advisor: Sood, Rohan.
502 $a Thesis (Ph.D.)--The University of Alabama, 2022.
506 $a This item must not be sold to any third party vendors.
520 $a Low-thrust propulsion methods, and the order of magnitude reduction in required fuel, is an enabling technology for deep-space exploration. Unfortunately, spacecraft with low-thrust levels require long-duration thrusting arcs, making them susceptible to missed thrust events. This investigation describes a new method for designing low-thrust spacecraft trajectories resilient to missed thrust events. The method, called expected thrust fraction, embeds the stochastic nature of missed thrust events into a time-dependent thrust penalty, which can be utilized inside a traditional optimal control solver. Additionally, the theory of expected thrust fraction is expanded to include solar sailing missions and their unique missed thrust behavior. The performance of expected thrust fraction is then characterized on a variety of low-thrust transfers, and its resilience to missed thrust events is compared to previous mitigation techniques. Finally, the technique is applied to NASA's Mars Sample Return mission concept, where the spacecraft's resilience to missed thrust events is improved from 65.4% to > 99%.
590 $a School code: 0004.
650 4 $a Aerospace engineering. $3 686400
653 $a Low-thrust propulsion
690 $a 0538
710 2 $a The University of Alabama. $b Aerospace Engineering. $3 845697
773 0 $t Dissertations Abstracts International $g 84-01B.
790 $a 0004
791 $a Ph.D.
792 $a 2022
793 $a English
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