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航空发动机寿命监视技术对监视发动机的工作状态、寿命消耗、剩余寿命和保证发动机在高性能水平下安全、可靠地工作有十分重要的作用.本文所设计的地面监视系统功能包括,对发动机飞行参数进行筛选并提取出影响低周疲劳寿命的循环数以及计算离心负荷、热负荷作用下的低周疲劳和蠕变寿命消耗,建立各关键件在低周/ 蠕变交互作用下的实际寿命消耗的计算模型.通过发动机使用寿命数据库对各监视零件的剩余寿命加以管理,为使用和维修提供参考依据
Aeroengine life monitoring technology plays an important role in monitoring engine working condition, life expectancy, remaining life and ensuring safe and reliable operation of the engine at high performance level.The ground monitoring system functions designed in this paper include the monitoring of engine flight parameters The number of cycles that affect the low cycle fatigue life is extracted and the centrifugal load, the low cycle fatigue and the service life of the creep life under the heat load are calculated, and the actual life consumption of the key parts under the low cycle / creep interaction is established Calculate the model, manage the remaining life of each monitoring part through the database of the service life of the engine, and provide a reference for the use and maintenance