Abstract
Igniter is an important part of aircraft engine, which should be reliable to ensure safety. Spark frequency disorder is common fault to the aviation ignition device, and it is great hidden danger to the aircraft engine. To guarantee the safety and reliability of aviation igniter, the fault mechanism of the aviation ignition spark frequency disorder is researched in this paper. The factors which will result in spark frequency disorder are studied, and the mathematical model of the ignition circuit and circuit simulation are presented, which lays the foundation for the follow-up research on the design of aviation ignition and the fault diagnosis.
Highlights
Aviation ignition is one of the important parts of the aero-engine, which is the heart of the aircraft
According to the long-term maintenance experience of engineering maintenance personnel, it is found that the spark frequency disorders fault occurs in the ignition exciter, which mainly caused by three situations: 1) The high voltage rectifier device fails to work, in other words, rectifier diode suffers short or open; 2) The transformer winding suffers short circuit between the turns or the layers, resulting in the change of the transformer turns ratio; 3) Discharge tube breakdown voltage changes due to aging problem
The Factors which will result in spark frequency disorder are studied, and the mathematical model of the ignition circuit and circuit simulation are presented, which lays the foundation for the follow-up research on the design of aviation ignition and the fault diagnosis [6]
Summary
Aviation ignition is one of the important parts of the aero-engine, which is the heart of the aircraft. According to the long-term maintenance experience of engineering maintenance personnel, it is found that the spark frequency disorders fault occurs in the ignition exciter, which mainly caused by three situations: 1) The high voltage rectifier device fails to work, in other words, rectifier diode suffers short or open; 2) The transformer winding suffers short circuit between the turns or the layers, resulting in the change of the transformer turns ratio; 3) Discharge tube breakdown voltage changes due to aging problem. The Factors which will result in spark frequency disorder are studied, and the mathematical model of the ignition circuit and circuit simulation are presented, which lays the foundation for the follow-up research on the design of aviation ignition and the fault diagnosis [6]
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