基于数值模拟的发动机高压涡轮叶片寿命预测

Prediction of Engine High Pressure Turbine Blade in Life Based on Numerical Simulation

基于航空发动机高压涡轮叶片的寿命预测,研究采用涡轮叶片载荷谱的方法。根据涡轮叶片关键部位载荷谱参数,借助寿命预测模型获得叶片蠕变/疲劳寿命。结果表明,涡轮叶片的寿命预测接近实际故障数据,该方法为民航发动机高压涡轮叶片维修计划的制定提供可靠的数据参考。

Based on the life prediction of aeroengine high pressure turbine blade,this paper studies the method of turbine blade load spectrum.According to the load spectrum parameters of key parts of turbine blade,the creep/fatigue life of turbine blade is obtained by life prediction model.The results show that the life prediction of turbine blade is close to the actual fault data,and the method provides reliable data reference for the formulation of maintenance plan for high pressure turbine blade of civil aviation engine.