金江善,董晓露,秦慈伟,桑晓琳.基于概率神经网络的船用柴油机共轨系统限流阀故障诊断研究[J].内燃机工程,2018,39(3):81-87. |
Fault Diagnosis for Fuel Limiting Valve of Marine Diesel Engine with Common Rail System Based on Probabilistic Neural Network |
DOI:10.13949/j.cnki.nrjgc.2018.03.012 |
Key Words:marine diesel engine high pressure common rail system fuel limiting valve fault diagnosis probabilistic neural network |
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Abstract:The failure mode of the fuel limiting valve was analyzed based on the working principle of the high pressure common rail system(HPCRS)of marine diesel engine. A simulation model of HPCRS was built with the AMESim hydraulic simulation platform, and the characteristics of three typical fault modes of the fuel limiting valve was obtained by simulation. A probabilistic neural network was established to diagnose failure of the valve, and test and simulation data were used to complete the training and verification of the network. The results show that the probabilistic neural network can realize the fault diagnosis of the fuel limiting valve effectively. |
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