Method of Slewing the Spacecraft to Minimize Settling Time
Loading...
Authors
Chen, H.
Agrawal, B.N.
Subjects
Advisors
Date of Issue
2002
Date
August 5-8, 2002
Publisher
Language
Abstract
The low-frequency flexible modes of solar arrays on spacecraft are excited by the minimum-time bang-bang control during a slew maneuver. These flexible modes limit the control bandwidth and degrade the pointing error at the end of slew maneuver, resulting in a longer settling time. The objective of this investigation is to develop and verify methods to shape the torque profile of reaction wheels for the slew maneuver such that, at the end of slew, vibration are minimized and the settling time is reduced. Effectiveness of the smooth versine input profiles, torque feedforward, and input shaping are accessed. Both numerical simulation results and ground simulated experimental results are presented in this paper.
Type
Description
The article of record as published may be found at http://dx.doi.org/10.2514/6.2002-4656
Series/Report No
Department
Department of Mechanical and Aerospace Engineering
Organization
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
AIAA Guidance, Navigation, and Control Conference and Exhibition, Monterey, California, August 5-8, 2002.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined
in Title 17, United States Code, Section 101. As such, it is in the
public domain, and under the provisions of Title 17, United States
Code, Section 105, is not copyrighted in the U.S.