Modeling and simulation of spark frequency disorder failure mechanism of aviation ignition device

摘要

Igniter is an important part of aircraft engine, which is need to be safe and reliable to ensure the safe operation of the engine. Spark frequency disorder is a kind of common fault to the aviation ignition device, which is a great hidden danger to the safety of the aircraft engine, and it is found by the maintenance staffs in the process of aircraft engine maintenance sometimes. 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.