The University of Southampton
University of Southampton Institutional Repository

Plate with decentralised velocity feedback loops: power absorption and kinetic energy considerations

Gardonio, P., Miani, S., Blanchini, F., Casagrande, D. and Elliott, S.J. (2012) Plate with decentralised velocity feedback loops: power absorption and kinetic energy considerations Journal of Sound and Vibration, 331, (8), pp. 1722-1741. (doi:10.1016/j.jsv.2011.12.013).

Record type: Article


This paper is focused on the vibration effects produced by an array of decentralised velocity feedback loops that are evenly distributed over a rectangular thin plate to minimise its flexural response. The velocity feedback loops are formed by collocated ideal velocity sensor and point force actuator pairs, which are unconditionally stable and produce ‘sky-hook’ damping on the plate. The study compares how the overall flexural vibration of the plate and the local absorption of vibration power by the feedback loops vary with the control gains. The analysis is carried out both considering a typical frequency-domain formulation based on kinetic energy and structural power physical quantities, which is normally used to study vibration and noise problems, and a time-domain formulation also based on kinetic energy and structural power, which is usually implemented to investigate control problems. The time-domain formulation shows to be much more computationally efficient and robust with reference to truncation errors. Thus it has been used to perform a parametric study to assess if, and under which conditions, the minimum of the kinetic energy and the maximum of the absorbed power cost functions match with reference to: (a) the number of feedback control loops, (b) the structural damping in the plate, (c) the mutual distance of a pair of control loops and (d) the mutual gains implemented in a pair of feedback loops.

Full text not available from this repository.

More information

Published date: 16 January 2012
Organisations: Signal Processing & Control Grp


Local EPrints ID: 209649
ISSN: 0022-460X
PURE UUID: 8500eeb9-fd58-4c45-bbe9-d68d18401b88

Catalogue record

Date deposited: 31 Jan 2012 15:03
Last modified: 18 Jul 2017 10:46

Export record



Author: P. Gardonio
Author: S. Miani
Author: F. Blanchini
Author: D. Casagrande
Author: S.J. Elliott

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.