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Characterising the acoustic footprint of Australia's new research vessel RV Investigator

Citation

Kloser, R and Martin, T and Sherlock, M, Characterising the acoustic footprint of Australia's new research vessel RV Investigator, 43rd International Congress on Noise Control Engineering 2014, 16-19 November 2014, Melbourne, Australia, pp. 1-7. ISBN 9780909882037 (2014) [Refereed Conference Paper]


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Copyright Statement

Copyright 2014 The Australian Acoustical Society

Official URL: http://www.acoustics.asn.au/conference_proceedings...

Abstract

The RV Investigator is Australia's new noise quietened Marine National Facility (MNF) vessel built to comply with the DNV silent-R specification. This radiated noise specification was based on the ICES 209 CRR specification designed with the main goal of minimising vessel avoidance for fisheries surveys. Noise quietening was specified for RV Investigator to improve the acoustic detection of instruments and reduce the vessel's noise footprint on the environment for research activities. Traditionally DC propulsion motors are used to achieve radiated noise compliance; in this case AC propulsion motors have been used. Initial noise measurements show the RV Investigator is 20 dB (factor of 100) quieter than the previous MNF vessel, RV Southern Surveyor which will significantly improve acoustic instrument performance. The new acoustic systems on the RV Investigator range from sub-bottom profilers, Doppler current profilers, multi-frequency and multi-beam water-column echo-sounders and low to mid frequency multi-beam bathymetry echo-sounders.

Item Details

Item Type:Refereed Conference Paper
Keywords:shipboard and offshore platform noise control, AC motors, acoustic devices
Research Division:Physical Sciences
Research Group:Classical Physics
Research Field:Acoustics and Acoustical Devices; Waves
Objective Division:Transport
Objective Group:Environmentally Sustainable Transport
Objective Field:Management of Noise and Vibration from Transport Activities
Author:Kloser, R (Dr Rudy Kloser)
Author:Martin, T (Dr Tara Martin)
ID Code:119630
Year Published:2014
Deposited By:Centre for Ecology and Biodiversity
Deposited On:2017-08-03
Last Modified:2017-10-05
Downloads:7 View Download Statistics

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