THE ADJOINT GRADIENT METHOD for TIME-OPTIMAL CONTROL of A MOON LANDING: ASCENT, DESCENT, and ABORT

Publikation: Beitrag in Buch/Bericht/TagungsbandKonferenzbeitragBegutachtung

Abstract

This article illustrates a novel approach for the determination of time-optimal controls for dynamic systems under observance of end conditions. Such problems arise in robotics, e.g. if the control of a robot has to be designed such that the time for a rest-to-rest maneuver becomes a minimum. So far, such problems have been considered as two-point boundary value problems, which are hard to solve and require an initial guess close to the optimal solution. The aim of this contribution is the development of an iterative, gradient based solution strategy for solving such problems. As an example, a Moon-landing as in the Apollo program, will be considered. In detail, we discuss the ascent, descent and abort maneuvers of the Apollo Lunar Excursion Module (LEM) to and from the Moon's surface in minimum time. The goal is to find the control of the thrust nozzle of the LEM to minimize the final time.

OriginalspracheEnglisch
Titel16th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC)
Herausgeber (Verlag)The American Society of Mechanical Engineers(ASME)
ISBN (elektronisch)9780791883914
DOIs
PublikationsstatusVeröffentlicht - 2020
VeranstaltungASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2020 - Virtual, Online
Dauer: 17 Aug 202019 Aug 2020

Publikationsreihe

NameProceedings of the ASME Design Engineering Technical Conference
Band2

Konferenz

KonferenzASME 2020 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2020
OrtVirtual, Online
Zeitraum17.08.202019.08.2020

Fingerprint

Untersuchen Sie die Forschungsthemen von „THE ADJOINT GRADIENT METHOD for TIME-OPTIMAL CONTROL of A MOON LANDING: ASCENT, DESCENT, and ABORT“. Zusammen bilden sie einen einzigartigen Fingerprint.

Zitieren