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Optimization of Transducer Location for Novel Non-Intrusive Methodologies of Diagnosis in Diesel Engines

Sound & Vibration 2021年第3期55卷 221-234页

作者： S.Narayan M.U.Kaisan Shitu Abubakar Faisal O.Mahroogi Vipul Gupta Department of Mechanical Engineering Qassim UniversityBuraydah51452Saudi Arabia Department of Mechanical Engineering Ahmadu Bello UniversityZaria810211Nigeria Department of Mechanical Engineering Islamic University of MadinaMedina42351Saudi Arabia Department of Mechanical Engineering Indus International UniversityUna174301India

The health monitoring has been studied to ensure integrity of design of engine structure by detection,quantification,and prediction of damages.Early detection of faults may allow the downtime of maintenance to be rescheduled,thus preventing sudden shutdown of machines.In cylinder pressure developed,vibrations and noise emissions data provide a rich source of information about condition of engines.Monitoring of vibrations and noise emissions are novel non-intrusive methodologies for which positioning of various transducers are important issue.The presented work shows applicability of these diagnosis methodologies adopted in case of diesel engines.The effects of changing various fuel injection parameters was analyzed.Scope of using non-intrusive technique has been analyzed by changing locations of microphone.Novelty of this worklies in exploring signal processing methods for various locations around the engine test set up.Various frequency ranges of contributing noise and vibration sources were identified.Time-Frequency analysis showed the onset of various cyclic.Based on the identification of various frequency bands,it is possible to device suitable filters in order to extract more information.

关键词： IC engines automotive vibrations and noise emissions condition monitoring specialized industrial machinery and equipment

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