| 涡轮叶片高温多轴低周疲劳/蠕变寿命研究 |
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| 引用本文： | 彭立强,王健.涡轮叶片高温多轴低周疲劳/蠕变寿命研究[J].航空动力学报,2009,24(7):1549-1555. |
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| 作者姓名： | 彭立强 王健 |
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| 作者单位： | 大连理工大学汽车工程学院,大连,116023 |
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| 基金项目： | 国家重点基础研究发展计划(2007CB70770103) |
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| 摘 要： | 针对航空发动机涡轮转子叶片工作环境,对Manson-Coffin多轴疲劳预测方程和SWT(Smith-Waston-Topper)公式进行修正,同时采用尚德广多轴疲劳损伤参量,给出涡轮叶片新的疲劳寿命预测方法,以适应涡轮叶片高温变幅非比例加载下疲劳损伤情况.通过算例计算了某涡轮叶片疲劳寿命及1000 h的总损伤,与叶片实际疲劳破坏相吻合,验证该高温多轴疲劳损伤计算模型的合理性和可行性.
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| 关 键 词： | 涡轮叶片 高温多轴疲劳 蠕变 疲劳寿命 非比例加载 |
| 收稿时间： | 2008/6/30 0:00:00 |
| 修稿时间： | 2008/11/8 0:00:00 |
Research on low cycle-multiaxial fatigue-creep life prediction at high temperature for turbine blade |
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| PENG Li-qiang and WANG Jian.Research on low cycle-multiaxial fatigue-creep life prediction at high temperature for turbine blade[J].Journal of Aerospace Power,2009,24(7):1549-1555. |
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| Authors: | PENG Li-qiang and WANG Jian |
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| Institution: | School of Automotive Engineering;Dalian University of Technology;Dalian 116023;China |
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| Abstract: | SHANG Deguang multiaxial fatigue damage model was used to amend Manson-Coffin equation of multiaxial fatigue prediction and SWT(Smith-Waston-Topper) formula,based on working condition of turbine rotor blade in aviation engine.A new method of fatigue life prediction of turbine blade was presented,which was adapted for non-proportional loading of turbine blade fatigue damage at high temperature.A case of turbine blade was calculated for fatigue life and the total damage of 1000 hours flying,in well agreement ... |
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| Keywords: | turbine blade multiaxial fatigue at high temperature creep fatigue life non-proportional loading |
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