Development of marine diesel engine fault diagnosis system based on vibration signal analysis
On-line diagnosis and monitoring of Marine diesel engine plays a very important role in ensuring the safe navigation of ships.The empirical method and the method of establishing mathematical model are very limited in practical application.This paper proposes a fault diagnosis system of Marine diesel engine based on vibration signal analysis,analyzes the basic structure and work flow of diesel engine,analyzes the characteristics of different fault vibration signals of diesel engine,and designs the structure of the fault diagnosis system on this basis.It includes vibration signal acquisition,feature extraction and fault diagnosis module,which maps the historical vibration data and fault type of diesel engine,and uses fault diagnosis model to output diagnosis results based on the characteristics of diesel engine vibration signal.
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