Mode localization by state feedback control quasi-perturbation of a multi-degree-of-freedom system /

a possibility in any multi-degree-of-freedom system, periodic

Bibliographic Details
Main Author: Faw, Stephen Wade, 1970-
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1995.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:a possibility in any multi-degree-of-freedom system, periodic
appearance of mode localization in periodic systems, or
continued work to evaluate the practicality of vibration
control through mode localization.
controlled periodic system should behave like the disordered
damping can combine to produce the phenomenon in periodic
demonstrated the presence of localized modes The goal of the
detrimentally dominated the dynamics of the controlled
disordered system with localized modes; in other words, the
eigenproperties verified the equations of motion and
eigenproperties. Experimental tests for determining the
experimental test system consisting of five pendula coupled
flexibility have proven unsuccessful to date, warranting
however, that Coulomb friction in the control actuators and
in a multi-degree-of-freedom experimental test system through
in like fashion. Small perturbations in the properties of
localization as a means of vibration control in multi-degree-
localized modes. Development of the equations of motion for
of-freedom systems. The research was centered around an
or not. This work examines the viability of using mode
phenomenon that appears as the suppression of vibration
propagation in mechanical systems through containment of
research is to apply control efforts to the ordered periodic
rig as an ordered periodic system or as a disordered one with
state feedback control of the system. Mode localization is a
system so that its eigenproperties match those of the
system. Efforts to alleviate the effects of the friction and
system. The control efforts are provided by three dc motors
systems with multiple identical units coupled to each other
systems. Feedback control, however, makes mode localization
the pendula in the system. Experimental work revealed,
the system led to calculation of the system's
the units, weak coupling between the units, and minimal
This thesis describes attempts to produce mode localization
together with torsional springs. One may configure the test
unwanted structural flexibility in the pendulum system
vibration at its source. Previous research has involved the
which, through gear trains, provide torque inputs to three of
Item Description:"Major subject: Mechanical Engineering".
Vita.
Physical Description:xv, 122 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references.