Thermal Fatigue Failure of Low-Pressure Turbine Blade in a Low-Bypass Turbofan Engine

R. K. Mishra; S. K. Jha

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Thermal Fatigue Failure of Low-Pressure Turbine Blade in a Low-Bypass Turbofan Engine

机译：低旁通涡轮机发动机中低压涡轮叶片的热疲劳失效

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Failure of low-pressure (LP) turbine rotor blade in a low-bypass turbofan engine is analyzed to determine its root cause. Forensic and metallurgical investigations are carried out on the affected blades. High surface oxidation on damaged blade is found to be the reason for crack initiation in blades. Thermal fatigue is the probable cause of failure in the blades due to prolong operation at maximum condition and malfunction of engine control system.

机译：分析低压（LP）涡轮转子叶片的低压（LP）涡轮转子叶片，以确定其根本原因。在受影响的刀片上进行法医和冶金研究。发现损坏刀片上的高表面氧化是叶片裂纹引发的原因。由于在最大条件和发动机控制系统故障的情况下，由于延长操作，叶片中的可能原因是刀片的可能性。

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来源
《Journal of Failure Analysis and Prevention》 |2019年第2期|共7页
作者
R. K. Mishra; S. K. Jha;
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作者单位

Regional Center for Military Airworthiness (Engines) CEMILAC;

Regional Center for Military Airworthiness (Engines) CEMILAC;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
Turbine blade; Thermal fatigue; Intergranular mode; Surface oxidation;

机译：涡轮叶片;热疲劳;晶间模式;表面氧化;

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专利

1. Thermal Fatigue Failure of Low-Pressure Turbine Blade in a Low-Bypass Turbofan Engine [J] . R. K. Mishra, S. K. Jha Journal of Failure Analysis and Prevention . 2019,第2期

机译：低旁通涡轮机发动机中低压涡轮叶片的热疲劳失效
2. Failure of Low-Pressure Turbine Blades in Military Turbofan Engines: Causes and Remedies [J] . R. K. Mishra, K. Srinivasan Journal of Failure Analysis and Prevention . 2016,第4期

机译：军用涡扇发动机低压涡轮叶片故障：原因及解决方法
3. An investigation of fatigue failures of turbine blades in a gas turbine engine by mechanical analysis [J] . Jianfu Hou, Bryon J. Wicks, Ross A. Antoniou Engineering failure analysis . 2002,第2期

机译：用力学分析研究燃气轮机涡轮叶片的疲劳失效。
4. Fatigue Failure of a Spiral Bevel Gear in a Typical Low-Bypass Turbofan Engine [C] . P. M. Shantiswaroop, S. A. Savanur, Benudhar Sahoo, International Conference on Structural Integrity . 2020

机译：典型的低旁路涡轮机发动机中螺旋锥齿轮的疲劳失效
5. Fatigue-induced failure in horizontal-axis wind-turbine (HAWT) blades and HAWT drivetrain gears. [D] . Chenna, Varun. 2014

机译：疲劳引起的水平轴风力涡轮机（HAWT）叶片和HAWT传动系统齿轮故障。
6. Prediction of Fatigue Crack Growth in Gas Turbine Engine Blades Using Acoustic Emission [O] . Zhiheng Zhang, Guoan Yang, Kun Hu 2018

机译：基于声发射的燃气轮机叶片疲劳裂纹扩展预测
7. Finite element structural and thermal analysis of JT9D turbofan engine first stage turbine blade [O] . Boiani Davide 2017

机译：JT9D涡扇发动机一级涡轮叶片的有限元结构和热分析
8. Low-Pressure Steam Turbine Blade Failures. Workshop Proceedings, Detroit, Michigan, June 28-29, 1978 [R] . Bougard, J., Capron, P., Jadot, R. 1980

机译：低压汽轮机叶片故障。研讨会论文集，密歇根州底特律，1978年6月28日至29日

Thermal Fatigue Failure of Low-Pressure Turbine Blade in a Low-Bypass Turbofan Engine

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