Frequency domain iterative tuning for the control of nonlinear vibrations


Luo, Jian and Veres, Sandor M. (2008) Frequency domain iterative tuning for the control of nonlinear vibrations. In, 47th IEEE Conference on Decision and Control, Cancun, Mexico, 09 - 11 Dec 2008. USA, Institute of Electrical and Electronics Engineers6pp, 3014-3019.

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Description/Abstract

A general gradient estimation method is proposed
that relies on the computation of system dynamics and signals
in the frequency domain. With the theory presented the
computation of the gradient of an average linear quadratic (LQ)
performance criterion can be simplified using only ‘partialmodelling’
with respect a finite signals spectrum. Using gradient
estimate a new iterative tuning (IT) method is presented
for nonlinear Active Noise and Vibration Control (ANVC)
problems. The most important novelty of the method is that it
performs one experiment per iteration that makes it suitable
for implementation as a self-tuning and adaptive controller.
Apart from the reduced number of experiments, relative to
time domain IFT methods, the new method has the added
advantage of its suitability for enhanced disturbance rejection
tuning in the frequency domain. The effectiveness of the method
is demonstrated on physical laboratory hardware.

Item Type: Conference or Workshop Item (Paper)
Additional Information: The paper presents a new practical methodology to actively control non-linear vibrations in machinery and vehicles.
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Keywords: iterative controller tuning, frequency domain methods, active noise and vibration control, nonlinear control
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
University Structure - Pre August 2011 > School of Engineering Sciences > Electro-Mechanical Engineering
University Structure - Pre August 2011 > School of Engineering Sciences > Computational Engineering and Design
ePrint ID: 64616
Date Deposited: 09 Jan 2009
Last Modified: 27 Mar 2014 18:46
URI: http://eprints.soton.ac.uk/id/eprint/64616

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