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Analysis of complex vibration signal of diesel engine on RO-RO passenger ship via extension-EMD and 4th-HEO
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Kangqiang LI1, 2, 3, Haipeng WANG2, Yangang SUN4, Qingtao GONG1, 3, Shubo OU4
Journal of Vibration Engineering | 2025, 38(1) : 109 - 116
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Journal of Vibration Engineering | 2025, 38(1): 109-116
Analysis of complex vibration signal of diesel engine on RO-RO passenger ship via extension-EMD and 4th-HEO
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Kangqiang LI1, 2, 3, Haipeng WANG2, Yangang SUN4, Qingtao GONG1, 3, Shubo OU4
Affiliations
  • 1.Ulsan Ship and Ocean College, Ludong University, Yantai 264025, China
  • 2.Information Fusion Research Institute, Naval Aviation University, Yantai 264001, China
  • 3.Shandong Marine Aerospace Equipment Technological Innovation Center, Yantai 264025, China
  • 4.Merchants Jinling Shipbuilding Weihai Co., Ltd., Weihai 264207, China
Published: 2025-01-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.01.012
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Aiming at the complex mechanism and operation characteristics of the mechanical system of diesel engine on RO-RO passenger ship, a multi-component nonlinear vibration signal decomposition method and vibration characteristic parameter extraction strategy are proposed. The signal is decomposed into intrinsic mode function (IMF) components via empirical mode decomposition and restrained the end effects in empirical mode decomposition (EMD) by symmetrical extension. The sensitive component is extracted by the correlation. The characteristic frequencies are matched according to the amplitude demodulation spectrum via 4 order high energy operator (4th-HEO). The proposed method is illustrated by the three-dimensional vibration signals under 0 load and 100 load operation conditions of the RO-RO passenger ship. The results show that the analysis performance of vertical signals are better than other axial signals. And for the 9-cylinder 4-stroke diesel engine, the amplitudes of 0.5 times and 4.5 times are very prominent, and are more sensitive to load changes.

fault diagnosis  /  diesel engine  /  extended-EMD  /  4th-HEO
Kangqiang LI, Haipeng WANG, Yangang SUN, Qingtao GONG, Shubo OU. Analysis of complex vibration signal of diesel engine on RO-RO passenger ship via extension-EMD and 4th-HEO[J]. Journal of Vibration Engineering, 2025 , 38 (1) : 109 -116 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.01.012
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2025.01.012
  • Receive Date：2023-01-02
  • Online Date：2026-02-11
  • Published：2025-01-10
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History
  • Received：2023-01-02
  • Revised：2023-03-21
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Affiliations
    1.Ulsan Ship and Ocean College, Ludong University, Yantai 264025, China
    2.Information Fusion Research Institute, Naval Aviation University, Yantai 264001, China
    3.Shandong Marine Aerospace Equipment Technological Innovation Center, Yantai 264025, China
    4.Merchants Jinling Shipbuilding Weihai Co., Ltd., Weihai 264207, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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