Jet firing strategy to minimize structural loads

Author

Bedrossian, N.S. ; Lepanto, J.A. ; Adams, N. ; Sunkel, J. ; Hua, T.

Author_Institution

Charles Stark Draper Lab., Houston, TX, USA

Volume

5

fYear

1995

fDate

21-23 Jun 1995

Firstpage

3622

Abstract

An optimal open-loop, feed-forward thruster pulsing strategy, which is independent of the plant model, is developed to minimize structural loads. It is shown that the appropriate optimization criterion is to minimize the maximum amplitude of the pulsing strategy power spectral density. An iterative strategy that generates sub-optimal solutions is presented. Simulation results using a model of the Hubble Space Telescope deployed on the Space Shuttle Remote Manipulator System demonstrate the effectiveness of the proposed methodology

Keywords

aerospace control; feedforward; iterative methods; manipulators; space vehicles; telerobotics; Hubble Space Telescope; Space Shuttle Remote Manipulator System; iterative strategy; jet firing strategy; optimal open-loop feedforward thruster pulsing strategy; optimization criterion; spectral density; structural loads minimisation; sub-optimal solutions; Delay effects; Feedforward systems; Frequency; Laboratories; NASA; Power system modeling; Robustness; Space shuttles; Time factors; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, Proceedings of the 1995

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2445-5

Type

conf

DOI

10.1109/ACC.1995.533813

Filename

533813