FGH96涡轮盘低循环疲劳寿命分析技术与试验

冯引利; 吴长波; 郜伟强; 陈伟

FGH96涡轮盘低循环疲劳寿命分析技术与试验

1.
南京航空航天大学能源与动力学院, 南京 210016
2.
中国航空工业集团公司中国燃气涡轮研究院强度技术研究室, 成都 610500
3.
中国航空工业集团公司中国燃气涡轮研究院强度技术研究室, 成都 610500

计量
- 文章访问数: 1926
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- 被引次数: 0
出版历程
- 收稿日期: 2011-04-18
- 修回日期: 2011-08-29
- 刊出日期: 2012-03-28

Analysis technology and experiment for FGH96 disc’s LCF life

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 China
2.
The Strength Research Office, China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China
3.
The Strength Research Office, China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China

摘要

摘要: 分析FGH96涡轮盘的尺寸效应,分析了分别适合于FGH96亚尺寸盘和全尺寸盘的低循环疲劳寿命预测方法.成功设计了FGH96亚尺寸盘、全尺寸裂纹扩展盘试验件;通过低循环疲劳试验,展现了两种不同的低循环疲劳失效机理,验证了提出的低循环疲劳寿命预测方法;通过裂纹扩展试验,获得了FGH96全尺寸轮盘的裂纹扩展特性,揭示了FGH96全尺寸涡轮盘与紧凑拉伸试样裂纹扩展特性具有显著差别的客观规律;获得FGH96全尺寸涡轮盘580℃损伤容限值,明确某发动机高压涡轮盘损伤容限水平.
- FGH96 /
- 尺寸效应 /
- 低循环疲劳寿命 /
- 裂纹扩展特性 /
- 损伤容限
Abstract: Scale effects of FGH96 disc were analyzed.Different LCF (low cycle fatigue) life forecasting methods fitted for FGH96 sub-scale and full-scale disk were analyzed.FGH96 sub-scale disk and FGH96 full-scale crack propagation disk were successfully designed.Two kinds of LCF failure mechanism were showed by LCF life tests.LCF life forecasting methods were verified.FGH96 crack propagation disc’s crack propagation characteristic was gained by crack propagation tests.The objective laws for prominent difference of crack propagation characteristic between FGH96 disc and compact tensile sample were revealed.FGH96 crack propagation disc’s damage tolerance values of 580℃ were obtained.Understanding was made for the high pressure turbine disk’s damage tolerance level.
- FGH96 /
- scale effects /
- LCF(low cycle fatigue) life /
- crack propagation characteristic /
- damage tolerance

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参考文献(14)

[1]	宋兆泓.航空发动机典型故障分析[M].北京:北京航空航天大学出版社,1993.
[2]	Tresa M P,Sammy T.Nickel-based superalloys for advanced turbine engines:chemistry,microstructure,and properties[J].Journal of Propulsion and Power,2006,22(2):361-373.
[3]	Thomas A C,Sankaran M,Robert G T,et al.Fatigue reliability of gas turbine engine structure Part Ⅰ.NASA/CR-97-206215,1997.
[4]	张学仁.粉末冶金涡轮盘蠕变/疲劳寿命预测中的几个问题 //第九届航空发动机结构强度振动学术会议论文集.武夷山,福建:中国航空学会航空发动机结构强度振动专业委员会.1998:61-66.
[5]	Grison J,Remy L.Fatigue failure probability in a powder metallurgy Ni-based superalloy[J].Engineering Fracture and Mechanics,1997,57(1):41-55.
[6]	Bussac A D,Lautridou J C.A probabilistic model for prediction of LCF surface crack initiation in PM alloys[J].Fatigue and Fracture of Engineering Materials & Structures,1993,16(8):861-874.
[7]	Luo J,Bowen P.Small and long fatigue crack growth behavior of a PM Ni-based superalloy Udimet 720[J].International Journal of Fatigue,2004,26(2):113-124.
[8]	徐凌志,吕文林.粉末冶金涡轮盘裂纹扩展失效概率分析[J].机械科学与技术,2000,19(2):210-212. XU Lingzhi,LV Wenlin.Crack growth failure probability of PM turbine disk[J].Mechanical Science and Techology,2000,19(2):210-212.(in Chinese)
[9]	宋迎东.粉末冶金涡轮盘强度与寿命研究.南京:南京航空航天大学,1997. SONG Yingdong.Study on strength and life of power metallurgy turbine disc.Nanjing:Nanjing University of Aeronautics and Astronautics,1997.(in Chinese)
[10]	赵勇铭,宋迎东.夹杂对粉末高温合金裂纹扩展寿命的影响[J].航空动力学报,2005,20(5):772-777. ZHAO Yongming,SONG Yingdong.Influence of inclusions on crack growth life of powder metallurgy[J]. Journal of Aerospace Power,2005,20(5):772-777.(in Chinese)
[11]	魏大盛,杨晓光,王延荣.基于缺陷概率特点的粉末冶金材料寿命预测概率模型[J].航空动力学报,2005,20(6):951-957. WEI Dasheng,YANG Xiaoguang,WANG Yanrong.Aprobabilistic model for prediction of life based on probabilistic character of defect in PM alloys[J].Journal of Aerospace Power,2005,20(6):951-957.(in Chinese)
[12]	蔚夺魁.粉末冶金材料轮盘定寿方法初探[J].航空发动机,1998(4):36-42. YU Duokui.Research for life forecasting method of P/M disk[J].Aeroengine,1998(4):36-42.(in Chinese)
[13]	冯引利,曹凤兰,王卫国,等.FGH96 亚尺寸粉末冶金盘低循环疲劳寿命可靠性分析及试验研究[J].燃气涡轮试验与研究,2007,20(2):53-57. FENG Yinli,CAO Fenglan,WANG Weiguo,et al.Reliability analysis on a FGH96 P/M sub-scale disk and experimental investigation[J].Gas Turbine Experiment and Research,2007,20(2):53-57.(in Chinese)
[14]	曹凤兰,卿华,古远兴,等.FGH96 粉末高温合金亚尺寸轮盘研制及试验验证[J].燃气涡轮试验与研究,2007,20(3):15-17. CAO Fenglan,QING Hua,GU Yuanxing et al.Research and experiment on FGH96 P/M superalloy sub-scale disk[J].Gas Turbine Experiment and Research,2007,20(3):15-17.(in Chinese)