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Hybrid active and passive control of vibratory power flow in flexible isolation system

Record type: Article

A hybrid active and passive vibration control strategy is developed to reduce the total power flows from machines, subject to multiple excitations, to supporting flexible structures. The dynamic interactions between machines, controllers, and receiving structures are studied. A force feedback control process governed by a proportional control law is adopted to produce active control forces to cancel the transmitted forces in the mounts. Computational simulations of a simple and a multiple dimensional hybrid vibration isolation system are performed to study the force transmissibility and the total power flows from vibration sources through active and passive isolators to the supporting structures. The investigation focuses on the effects of a hybrid control approach to the reduction of power flow transmissions and the influence of the dynamic characteristics of the control on power flow spectra. The hybrid control mechanism is synthesised from the power flow analysis. Conclusions and control strategies, well supported by numerical simulations, are deduced providing very useful guidelines for hybrid vibration isolation design.

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Citation

Xiong, Y.P., Wang, X.P., Xing, J.T. and Price, W.G. (2000) Hybrid active and passive control of vibratory power flow in flexible isolation system Shock and Vibration, 7, (3), pp. 139-148.

More information

Published date: 2000
Keywords: hybrid control, power flow, multiple excitations, active vibration isolation
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 63876
URI: http://eprints.soton.ac.uk/id/eprint/63876
ISSN: 1070-9622
PURE UUID: 783eb204-acc4-4d9c-8d58-00b618c35433
ORCID for Y.P. Xiong: ORCID iD orcid.org/0000-0002-0135-8464

Catalogue record

Date deposited: 14 Nov 2008
Last modified: 17 Jul 2017 14:15

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Contributors

Author: Y.P. Xiong ORCID iD
Author: X.P. Wang
Author: J.T. Xing
Author: W.G. Price

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