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A failure diagnosis strategy is proposed in this paper based on fault tree analysis method. The fault tree analytical method draws breechblock failure and a variety of possible events for the failure occurrence into a tree failure chart. A fault tree of misfire fault of breechblock system is illustrated when simultaneously considering the fault probability and time cost of ngsearch basic events. After...
According to the limitations of Three ratio method in Gas chromatographic analysis of transformer, uses radar chart to show the relative content of gases dissolved in oil intuitively, sets up the typical radar chart modeles of fault type. Calculates the similarity of binary images of the radar chartes prepared to be tested and typical modeles of fault type, to export the probability of some failures,...
In this paper, an aircraft cable intelligent fault diagnosis and location system based on time domain reflection (TDR) is introduced. The TDR system is composed of following four instruments: the pulse generator and transmitter circuit for generating the reference signal, the impedance matching circuit for reducing the signal distortion, the signal acquisition system for acquiring the reference signal...
The fray fault of the aircraft wire is always considered difficult to be detected. But it would be a serious threat to the safety of the aircraft. As the flight of the aircraft, the fray fault can be more and more serious and it would become open or short circuit at last. In this paper a new and useful method was proposed to deal with the fray fault. A mathematic model of aircraft wire fray fault...
In order to determine the fault type and fault location of the aircraft cable, a distributed hierarchical aircraft cable fault diagnosis system is designed. Based on the measuring method of time domain reflection, a back propagation neural network is selected as the control algorithm. The experimental results show that the system is rational and effective.
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