A Knock Detection Method for a Marine Micro-Ignition Dual-Fuel Engine Based on Vibration Signals

• Autorzy: Hu Nao , Zhao He , Yang Jianguo , Zheng Xianquan , Li Hongmei , Xie Liangtao , Liu Fuze , Chen Gang

Identyfikatory

DOI

10.2478/pomr-2025-0011

• Języki publikacji: EN

Abstrakty

EN

A simple and unified index is proposed to achieve knock detection under various engine loads. Maximum amplitude vibration oscillation (MAVO) and maximum amplitude pressure oscillation (MAPO) were compared and were found to have no consistency. This means that MAVO cannot accurately reflect knocks inside the engine cylinder in the time domain. However, a knocking index built with MAVO can effectively detect engine knocking under various engine loads, which implies that some important information connected to the knock may be hidden within it. In this circumstance, a frequency domain analysis and a wavelet transform were conducted to study the energy changes of vibration signals during engine knocking. The energy proportion of the D1 frequency band during knocking increased drastically. Therefore, it was used to build a knocking judgment index, which builds the relationship between MAVO and MAPO. The judgment index has good applicability under different engine loads and a value greater than 0.5 can be used effectively for knock detection.

Słowa kluczowe

EN

knock detection; vibration signal; wavelet transform; energy proportion; unified knock detection index

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2025
• Tom: nr 1
• Strony: 111--120
• Opis fizyczny: Bibliogr. 25 poz., rys., tab.

Twórcy

autor

Hu Nao

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China
• Key Laboratory of Marine Power Engineering &Technology, Ministry of Transport, Wuhan, China

• https://orcid.org/0000-0003-4094-3858

autor

Zhao He

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China

• https://orcid.org/0009-0009-8797-2702

autor

Yang Jianguo

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China
• Key Laboratory of Marine Power Engineering &Technology, Ministry of Transport, Wuhan, China

• https://orcid.org/0000-0001-9208-1036

autor

Zheng Xianquan

• College of Power Engineering, Naval University of Engineering, Wuhan, China

• https://orcid.org/0009-0006-9083-6160

autor

Li Hongmei

• Key Laboratory for Power Machinery and Engineering, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
• Shanghai Marine Diesel Engine Research Institute, Shanghai, China
• National Key Laboratory of Marine Engine Science and Technology, Shanghai, China

autor

Xie Liangtao

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China

• https://orcid.org/0000-0003-3587-4237

autor

Liu Fuze

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China

• https://orcid.org/0009-0007-4117-9798

autor

Chen Gang

• School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).