| Fault diagnosis and isolation of the component and sensor for aircraft engine |
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| 作者姓名： | QIU Xiao-jie HUANG Jin-quan LU Feng LIU Nan |
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| 作者单位： | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China |
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| 基金项目： | Program Sponsored for Scientific Innovation Research of College Graduate in Jiangsu Province(CX10B_108Z) |
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| 摘 要： | Aircraft engine component and sensor fault detection and isolation approach was proposed,which included fault type detection module and component-sensor simultaneous fault isolation module.The approach can not only distinguish among sensor fault,component fault and component-sensor simultaneous fault,but also isolate and locate sensor fault and the type of engine component fault when the engine component fault and the sensor faults occur simultaneously.The double-threshold mechanism has been proposed,in which the fault diagnostic threshold changed with the sensor type and the engine condition,and it greatly improved the accuracy and robustness of sensor fault diagnosis system.Simulation results show that the approach proposed can diagnose and isolate the sensor and engine component fault with improved accuracy.It effectively improves the fault diagnosis ability of aircraft engine.
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| 关 键 词： | aircraft engine sensor fault engine component fault simultaneous fault diagnosis isolation double-threshold mechanism |
| 收稿时间： | 2011/6/30 0:00:00 |
Fault diagnosis and isolation of the component and sensor for aircraft engine |
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| QIU Xiao-jie,HUANG Jin-quan,LU Feng,LIU Nan.Fault diagnosis and isolation of the component and sensor for aircraft engine[J].Journal of Aerospace Power,2012,27(6):1432-1440. |
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| Authors: | QIU Xiao-jie HUANG Jin-quan LU Feng and LIU Nan |
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| Institution: | College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Aircraft engine component and sensor fault detection and isolation approach was proposed,which included fault type detection module and component-sensor simultaneous fault isolation module. The approach can not only distinguish among sensor fault, component fault and component-sensor simultaneous fault, but also isolate and locate sensor fault and the type of engine component fault when the engine component fault and the sensor faults occur simultaneously. The double-threshold mechanism has been proposed, in which the fault diagnostic threshold changed with the sensor type and the engine condition, and it greatly improved the accuracy and robustness of sensor fault diagnosis system. Simulation results show that the approach proposed can diagnose and isolate the sensor and engine component fault with improved accuracy. It effectively improves the fault diagnosis ability of aircraft engine. |
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| Keywords: | aircraft engine sensor fault engine component fault simultaneous fault diagnosis isolation double-threshold mechanism |
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