| FGH96涡轮盘低循环疲劳寿命分析技术与试验 |
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| 引用本文： | 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[J].航空动力学报,2012,27(3):628-634. |
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| 作者姓名： | 冯引利 吴长波 郜伟强 陈伟 |
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| 作者单位： | 南京航空航天大学 能源与动力学院, 南京 210016; 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;南京航空航天大学 能源与动力学院, 南京 210016; 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;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;南京航空航天大学 能源与动力学院, 南京 210016 |
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| 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.
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| 关 键 词： | FGH96 尺寸效应 低循环疲劳寿命 裂纹扩展特性 损伤容限 |
| 收稿时间： | 2011/4/18 0:00:00 |
| 修稿时间： | 2011/8/29 0:00:00 |
Analysis technology and experiment for FGH96 disc’s LCF life |
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| FENG Yin-li,WU Chang-bo,GAO Wei-qiang and CHEN Wei.Analysis technology and experiment for FGH96 disc’s LCF life[J].Journal of Aerospace Power,2012,27(3):628-634. |
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| Authors: | FENG Yin-li WU Chang-bo GAO Wei-qiang and CHEN Wei |
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| Institution: | College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 China; The Strength Research Office, China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 China; The Strength Research Office, China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China;The Strength Research Office, China Gas Turbine Establishment, Aviation Industry Corporation of China, Chengdu 610500, China;College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 China |
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| 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. |
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| Keywords: | FGH96 scale effects LCF(low cycle fatigue) life crack propagation characteristic damage tolerance |
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