Abstract
As the key parts of marine diesel engine, the working state of the piston rings affects the performance of the marine diesel engine directly. Therefore, it is significant to research on the monitoring piston rings wear method for the marine diesel engine. The three-dimensional finite element calculation magneto-resistive model of piston rings wear was developed based on RTA52U marine diesel engine in the paper. There is a single corresponding relationship between the piston ring wear and magnetic field changes on the monitoring point by theoretical calculation results. The sensor used for monitoring piston rings wear and a sensor calibration equipment were developed. The piston rings wear monitoring sensor is developed and reliable through calibration test. The correction of the calculation magneto-resistive model is verified by experiments on board.
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