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Iterative generation differential decomposition with multi-component vibration signals for marine diesel engine

Published online by Cambridge University Press:  12 March 2025

Kangqiang Li Open the ORCID record for Kangqiang Li [Opens in a new window] ,
Haipeng Wang ,
Qingtao Gong ,
Xin Hu Open the ORCID record for Xin Hu [Opens in a new window] ,
Yangang Sun  and
Shubo Ou
Kangqiang Li
Affiliation:
Ulsan Ship and Ocean College, Ludong University, Yantai, Shandong 264025, China Institute of Information Fusion, Naval Aviation University, Yantai, Shandong 264025, China
Haipeng Wang
Affiliation:
Institute of Information Fusion, Naval Aviation University, Yantai, Shandong 264025, China
Qingtao Gong
Affiliation:
Ulsan Ship and Ocean College, Ludong University, Yantai, Shandong 264025, China
Xin Hu*
Affiliation:
School of Mathematics and Statistics Science, Ludong University, Yantai, Shandong 264025, China
Yangang Sun
Affiliation:
China Merchants Jinling Shipbuilding Weihai Co., Ltd., Weihai 264205, China
Shubo Ou
Affiliation:
China Merchants Jinling Shipbuilding Weihai Co., Ltd., Weihai 264205, China
*
*Corresponding author: Xin Hu; E-mail: [email protected]
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Abstract

This paper proposes a novel method of applying an iterative generation differential equation method to the multi-component nonlinear signal analysis of a diesel engine. The characteristics of a dynamic model of the single cylinder are analysed and discussed. The iterative generation differential decomposition method decomposes the multi-component signal and extracts multiple single-component signals. The sensitive single-component analysis technology of the complex vibration signal of a diesel engine is formed. The relationship between characteristic parameters of engine vibration dynamics and operation law is derived. A priori information about the unmeasured vibration signals of the roll-on/roll-off (Ro-Ro) passenger ships is not required. The experimental data is validly processed based on this developed method. Results show that this method is practical and feasible in analysing diesel engine vibration signals, especially under different load operating conditions.

Keywords

Ro-Ro passenger shipdiesel enginemulti-component signal analysiscondition monitoring
Type
Research Article
Information
The Journal of Navigation , First View , pp. 1 - 17
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Copyright
Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of The Royal Institute of Navigation

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