Publication detail

Acoustic Method for Estimation of Marine Low-Speed Engine Turbocharger Parameters

VARBANETS, R. FOMIN, O. PÍŠTĚK, V. KLYMENKO, V. MINCHEV, D. KHRULEV, A. ZALOZH, V. KUČERA, P.

Original Title

Acoustic Method for Estimation of Marine Low-Speed Engine Turbocharger Parameters

Type

journal article in Web of Science

Language

English

Original Abstract

The article presents the acoustic method of marine low-speed engine turbocharger parameter estimation under operating conditions when a prompt assessment of instantaneous turbocharger speed and rotor vibration level is required. The method lies in the analysis of the acoustic signal that is generated by the compressor of the turbocharger with the diesel engine running under load. The spectral analysis reveals that the compressor blades generate acoustic oscillations that are always present in the overall acoustic spectrum of the turbocharger regardless of its technical condition. The harmonic components corresponding to the blades can be detected in the spectrum using the limit method. The calculated instantaneous turbocharger speed makes it possible to analyze the main harmonic amplitude in the spectrum. The method presented in this paper helps eliminate discrete Fourier transform (DFT) spectral leakage so that the amplitude of the main harmonic can be estimated. Further analysis of the amplitude of the main harmonic allows for efficient estimation of the turbocharger rotor vibration level when in operation. The method can be practically applied by means of a smartphone or a computer that has the dedicated software installed. The proposed method lays the foundations for a permanent monitoring system of turbocharger speed and vibration in industrial and marine diesel engines.

Keywords

turbocharger diagnostics; large diesel engine; acoustic spectral analysis; DFT leakage

Authors

VARBANETS, R.; FOMIN, O.; PÍŠTĚK, V.; KLYMENKO, V.; MINCHEV, D.; KHRULEV, A.; ZALOZH, V.; KUČERA, P.

Released

14. 3. 2021

Publisher

MDPI

ISBN

2077-1312

Periodical

Journal of Marine Science and Engineering

Year of study

9

Number

3

State

Swiss Confederation

Pages from

1

Pages to

13

Pages count

13

URL

https://www.mdpi.com/2077-1312/9/3/321/htm

Full text in the Digital Library

http://hdl.handle.net/11012/196752

BibTex

@article{BUT170747,
  author="Roman {Varbanets} and Oleksij {Fomin} and Václav {Píštěk} and Valentyn {Klymenko} and Dmytro {Minchev} and Alexander {Khrulev} and Vitalii {Zalozh} and Pavel {Kučera}",
  title="Acoustic Method for Estimation of Marine Low-Speed Engine Turbocharger Parameters",
  journal="Journal of Marine Science and Engineering",
  year="2021",
  volume="9",
  number="3",
  pages="1--13",
  doi="10.3390/jmse9030321",
  issn="2077-1312",
  url="https://www.mdpi.com/2077-1312/9/3/321/htm"
}