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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
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" }