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Frequency domain iterative tuning for the control of nonlinear vibrations

Record type: Conference or Workshop Item (Paper)

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.

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Citation

Luo, Jian and Veres, Sandor M. (2008) Frequency domain iterative tuning for the control of nonlinear vibrations At 47th IEEE Conference on Decision and Control, Mexico. 09 - 11 Dec 2008. 6 pp, pp. 3014-3019. (doi:10.1109/CDC.2008.4739397).

More information

Submitted date: 15 February 2008
Published date: 2 December 2008
Additional Information: The paper presents a new practical methodology to actively control non-linear vibrations in machinery and vehicles.
Venue - Dates: 47th IEEE Conference on Decision and Control, Mexico, 2008-12-09 - 2008-12-11
Keywords: iterative controller tuning, frequency domain methods, active noise and vibration control, nonlinear control
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 64616
URI: http://eprints.soton.ac.uk/id/eprint/64616
PURE UUID: ecd00e46-7b19-46c1-aa42-d0664b7bcf10

Catalogue record

Date deposited: 09 Jan 2009
Last modified: 17 Jul 2017 14:12

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