Persistent Link:
http://hdl.handle.net/10150/185155
Title:
Controlling a large flexible structure to mimic a rigid one.
Author:
Lin, Yeong Ching
Issue Date:
1990
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Analytical and experimental comparisons are presented for two control laws used in a laboratory structure designed to simulate large space structures. The proposed control laws are based on minimizing the amount of energy imparted to the flexible modes during the maneuver. Structure modeling and various control techniques are discussed. In the proposed modeling procedure, the finite element method is used to describe the equations of motion for a given structure. The main objective of the analysis is to determine optimal actuator locations and the command forces to the actuators such that the structure will follow a desired trajectory while minimizing the internal energy to the flexible modes. The numerical simulations are verified experimentally using a digital implementation of the control laws. Critical issues related to experimental implementation are discussed. A closed-loop control system design which will take care of nonlinearities and uncertain inputs is included in this dissertation.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Engineering
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Aerospace and Mechanical Engineering; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Vincent, Thomas L.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleControlling a large flexible structure to mimic a rigid one.en_US
dc.creatorLin, Yeong Chingen_US
dc.contributor.authorLin, Yeong Chingen_US
dc.date.issued1990en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractAnalytical and experimental comparisons are presented for two control laws used in a laboratory structure designed to simulate large space structures. The proposed control laws are based on minimizing the amount of energy imparted to the flexible modes during the maneuver. Structure modeling and various control techniques are discussed. In the proposed modeling procedure, the finite element method is used to describe the equations of motion for a given structure. The main objective of the analysis is to determine optimal actuator locations and the command forces to the actuators such that the structure will follow a desired trajectory while minimizing the internal energy to the flexible modes. The numerical simulations are verified experimentally using a digital implementation of the control laws. Critical issues related to experimental implementation are discussed. A closed-loop control system design which will take care of nonlinearities and uncertain inputs is included in this dissertation.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectEngineeringen_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineAerospace and Mechanical Engineeringen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorVincent, Thomas L.en_US
dc.contributor.committeememberArabyan, Araen_US
dc.contributor.committeememberTharp, Hal S.en_US
dc.identifier.proquest9103019en_US
dc.identifier.oclc709747348en_US
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