<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A ship moving over the surface of water generates disturbances that are perceived as noise, both in the air and under water. Due to its density, water is an excellent medium for transmitting acoustic waves over long distances.</p><p>This article describes the impact of the settings of a ship’s machinery on the nature of the generated noise. Our analysis includes the frequency characteristics of the noise generated by the moving ship. Data were obtained using an underwater measurement system, and the measured objects were two ships moving on specific trajectories with certain machinery settings. The acquired data were analysed in the frequency domain to explore the possibilities of the acoustic classification of ships and diagnostics of source mechanisms.</p></abstract>

A ship moving over the surface of water generates disturbances that are perceived as noise, both in the air and under water. Due to its density, water is an excellent medium for transmitting acoustic waves over long distances.This article describes the impact of the settings of a ship’s machinery on the nature of the generated noise. Our analysis includes the frequency characteristics of the noise generated by the moving ship. Data were obtained using an underwater measurement system, and the measured objects were two ships moving on specific trajectories with certain machinery settings. The acquired data were analysed in the frequency domain to explore the possibilities of the acoustic classification of ships and diagnostics of source mechanisms.

Analysing the Impact on Underwater Noise of Changes to the Parameters of a Ship’s Machinery

Polish Maritime Research

This work is licensed under the Creative Commons Attribution 4.0 International License.

A ship moving over the surface of water generates disturbances that are perceived as noise, both in the air and under water. Due to its density, water is an...

Analysing the Impact on Underwater Noise of Changes to the Parameters of a Ship’s Machinery

Published Online: Sep 29, 2020

Page range: 176 - 181

DOI: https://doi.org/10.2478/pomr-2020-0059

Keywords
shipping noise, hydroacoustic passive measurement, narrowband, 1/3-octave analysis, diagnosis, classification

© 2020 Krystian Buszman, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Analysing the Impact on Underwater Noise of Changes to the Parameters of a Ship’s Machinery

Published Online: Sep 29, 2020

Page range: 176 - 181

DOI: https://doi.org/10.2478/pomr-2020-0059

Keywordsshipping noise, hydroacoustic passive measurement, narrowband, 1/3-octave analysis, diagnosis, classification

© 2020 Krystian Buszman, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
shipping noise, hydroacoustic passive measurement, narrowband, 1/3-octave analysis, diagnosis, classification