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Broadband active control of noise and vibration in a fluid-filled pipeline using an array of non-intrusive structural actuators

Broadband active control of noise and vibration in a fluid-filled pipeline using an array of non-intrusive structural actuators
Broadband active control of noise and vibration in a fluid-filled pipeline using an array of non-intrusive structural actuators
Fluid-filled pipelines occur in a wide variety of installations where they are excited by sources such as pumps and compressors through both the structure of the pipe wall and the fluid in the system. These vibrations may propagate downstream and result in unwanted radiated noise from the pipeline or connected structures. Although passive measures are available to control both structure and fluid borne vibration, their operating frequency range is generally limited by the volume and weight constraints that are imposed by the practical installation. Active control methods may overcome these volume and weight constraints and such systems have been investigated for the control of both fluid and structure borne transmission. In particular, previous work has highlighted the ability to control the internal acoustic pressure using non-intrusive fluid-wave actuators. However, although these systems are able to achieve control of the internal acoustic pressure they produce enhancements in the structural vibration and this limits the practical benefit of these systems. This paper investigates the behaviour of a non-intrusive structural controller consisting of an array of piezo stack actuators positioned circumferentially around the pipe and acting on its outside wall. The ability of the system to control the internal, fluid-borne, acoustic pressure and the externally radiated sound pressure is investigated through a series of experiments. These results are then used to highlight the trade-off between controlling the internal and external pressures using the non-intrusive array of structural actuators
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Daley, Stephen
53cef7f1-77fa-4a4c-9745-b6a0ba4f42e6
Cheer, Jordan
8e452f50-4c7d-4d4e-913a-34015e99b9dc
Daley, Stephen
53cef7f1-77fa-4a4c-9745-b6a0ba4f42e6

Cheer, Jordan and Daley, Stephen (2015) Broadband active control of noise and vibration in a fluid-filled pipeline using an array of non-intrusive structural actuators. 44th International Congress on Noise Control Engineering (inter.noise 2015), United States. 09 - 12 Aug 2015. 10 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Fluid-filled pipelines occur in a wide variety of installations where they are excited by sources such as pumps and compressors through both the structure of the pipe wall and the fluid in the system. These vibrations may propagate downstream and result in unwanted radiated noise from the pipeline or connected structures. Although passive measures are available to control both structure and fluid borne vibration, their operating frequency range is generally limited by the volume and weight constraints that are imposed by the practical installation. Active control methods may overcome these volume and weight constraints and such systems have been investigated for the control of both fluid and structure borne transmission. In particular, previous work has highlighted the ability to control the internal acoustic pressure using non-intrusive fluid-wave actuators. However, although these systems are able to achieve control of the internal acoustic pressure they produce enhancements in the structural vibration and this limits the practical benefit of these systems. This paper investigates the behaviour of a non-intrusive structural controller consisting of an array of piezo stack actuators positioned circumferentially around the pipe and acting on its outside wall. The ability of the system to control the internal, fluid-borne, acoustic pressure and the externally radiated sound pressure is investigated through a series of experiments. These results are then used to highlight the trade-off between controlling the internal and external pressures using the non-intrusive array of structural actuators

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Broadband active control of noise and vibration in a fluid-filled pipeline using an array of non-intrusive structural actuators.pdf - Accepted Manuscript
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More information

Published date: 11 August 2015
Venue - Dates: 44th International Congress on Noise Control Engineering (inter.noise 2015), United States, 2015-08-09 - 2015-08-12
Organisations: Signal Processing & Control Grp

Identifiers

Local EPrints ID: 380527
URI: https://eprints.soton.ac.uk/id/eprint/380527
PURE UUID: fd346589-a54d-461d-8082-a5260c720180
ORCID for Jordan Cheer: ORCID iD orcid.org/0000-0002-0552-5506

Catalogue record

Date deposited: 11 Sep 2015 13:16
Last modified: 06 Jun 2018 12:32

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Contributors

Author: Jordan Cheer ORCID iD
Author: Stephen Daley

University divisions

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