Impact of Typical Operating Conditions on Creep Life Consumption for Aero Engine Turbine Blade

Journal of Propulsion Technology ›› 2017, Vol. 38 ›› Issue (5): 1107-1114.

• Structure, Strength and Reliablity • Previous Articles Next Articles

Impact of Typical Operating Conditions on Creep Life Consumption for Aero Engine Turbine Blade

Department of Airborne Vehicle Engineering，Naval Aeronautical and Astronautical University，Yantai 264001，China,Department of Airborne Vehicle Engineering，Naval Aeronautical and Astronautical University，Yantai 264001，China,Department of Airborne Vehicle Engineering，Naval Aeronautical and Astronautical University，Yantai 264001，China and Naval Equipment Department，Xi’an 710000，China

Published:2021-08-15

典型使用条件对发动机涡轮叶片蠕变寿命消耗的影响研究

李本威¹,赵勇¹,蒋科艺¹,李钊²

海军航空工程学院飞行器工程系，山东烟台 264001,海军航空工程学院飞行器工程系，山东烟台 264001,海军航空工程学院飞行器工程系，山东烟台 264001,海军装备部，陕西西安 710021

作者简介:李本威，男，教授、博导，博士，研究领域为航空发动机状态监控与健康管理。
基金资助:
国家自然科学基金(51505492)；“泰山学者”工程专项经费资助；海军航空工程学院研究生创新基金。

Abstract

Abstract: In order to develop turbine blade life usage monitoring and understand impact of typical operating conditions on creep life consumption of high pressure turbine blade，an integrated turbine blade life consumption analysis model was established based on engine performance simulation model and multi-field conjugate method. Through introducing the life consumption factor，quantitative impact of typical operating conditions，such as flight altitude，ambient temperature，flight Mach number and high pressure rotor speed，on turbine blade temperature，stress and creep life consumption was found. Results show that operating condition indeed has a significant impact on turbine blade creep life consumption，among which the high pressure rotor speed has the maximal impact that logarithmic life consumption factor increases about 0.4 with rotor speed raise 1%.

Key words: Aero engine；Turbine blade；Life consumption；Operating condition；Life usage monitoring

摘要： 为开展发动机涡轮叶片使用寿命监视及掌握典型使用条件对高压涡轮叶片蠕变寿命消耗的影响规律，利用发动机性能仿真程序与使用载荷多场耦合分析方法建立了涡轮叶片寿命消耗综合分析模型，并通过引入寿命消耗因子，定量给出了飞行高度、环境温度、飞行马赫数、高压转子转速等使用条件对涡轮叶片温度与应力以及蠕变寿命消耗的影响规律。结果表明，各使用因素均对涡轮叶片的蠕变寿命消耗具有较大影响，其中以高压转子转速的影响最大，转速升高1%其对数寿命消耗因子升高约0.4。

关键词: 航空发动机；涡轮叶片；寿命消耗；使用条件；使用寿命监视

LI Ben-wei¹,ZHAO Yong¹,JIANG Ke-yi¹,LI ZhaO². Impact of Typical Operating Conditions on Creep Life Consumption for Aero Engine Turbine Blade[J]. Journal of Propulsion Technology, 2017, 38(5): 1107-1114.

李本威,赵勇,蒋科艺,李钊. 典型使用条件对发动机涡轮叶片蠕变寿命消耗的影响研究[J]. 推进技术, 2017, 38(5): 1107-1114.

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Impact of Typical Operating Conditions on Creep Life Consumption for Aero Engine Turbine Blade

典型使用条件对发动机涡轮叶片蠕变寿命消耗的影响研究

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