Numerical Analysis of Constrained, Time-Optimal Satellite Reorientation
Author
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-25
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
Previous work on time-optimal satellite slewing maneuvers, with one satellite axis (sensor axis) required to obey multiple path constraints (exclusion from keep-out cones centered on high-intensity astronomical sources) reveals complex motions with no part of the trajectory touching the constraint boundaries (boundary points) or lying along a finite arc of the constraint boundary (boundary arcs).
This paper examines four cases in which the sensor axis is either forced to follow a boundary arc, or has initial and final directions that lie on the constraint boundary.
Numerical solutions, generated via a Legendre pseudospectral method, show that the forced boundary arcs are suboptimal.
Precession created by the control torques, moving the sensor axis away from the constraint boundary, results in faster slewing maneuvers.
A two-stage process is proposed for generating optimal solutions in less time, an important consideration for eventual onboard implementation.
American Psychological Association (APA)
Melton, Robert G.. 2012. Numerical Analysis of Constrained, Time-Optimal Satellite Reorientation. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-1001907
Modern Language Association (MLA)
Melton, Robert G.. Numerical Analysis of Constrained, Time-Optimal Satellite Reorientation. Mathematical Problems in Engineering No. 2012 (2012), pp.1-19.
https://search.emarefa.net/detail/BIM-1001907
American Medical Association (AMA)
Melton, Robert G.. Numerical Analysis of Constrained, Time-Optimal Satellite Reorientation. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-1001907
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001907