| 随机环境下涡轮盘-片剩余寿命预测方法 |
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| 引用本文： | 杨自春,申文才,彭茂林.随机环境下涡轮盘-片剩余寿命预测方法[J].航空动力学报,2009,24(8):1677-1683. |
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| 作者姓名： | 杨自春 申文才 彭茂林 |
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| 作者单位： | 海军工程大学 船舶与动力学院, 武汉 430033 |
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| 摘 要： | 采用随机有限元方法, 针对某燃气涡轮盘-片进行了热流固耦合及接触热弹塑性分析, 得到了随机应力应变响应;基于概率Miner损伤准则和应变场强法, 运用K.N.Smith疲劳损伤公式及Manson-Succop形式热强综合参数蠕变方程计算了涡轮盘-片的疲劳蠕变寿命;据此分析了影响疲劳和蠕变损伤的各种因素, 提出了装置使用和维护方面的建议.分析结果接近实际, 证明该方法不失为目前为止较好的预测涡轮盘-片剩余寿命的新方法.
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| 关 键 词： | 随机有限元 热流固耦合 接触问题 涡轮盘-片 剩余寿命预测 |
| 收稿时间： | 2008/7/10 0:00:00 |
| 修稿时间： | 7/7/2009 5:54:34 PM |
Research on residual life prediction of turbine blade-disc under radon environment |
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| YANG Zi-chun,SHEN Wen-cai and PENG Mao-lin.Research on residual life prediction of turbine blade-disc under radon environment[J].Journal of Aerospace Power,2009,24(8):1677-1683. |
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| Authors: | YANG Zi-chun SHEN Wen-cai and PENG Mao-lin |
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| Institution: | School of Naval Architecture and Power, Naval University of Engineering, WuHan 430033, China |
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| Abstract: | Heat-fluid-solid coupling and contact thermo-elastic-plastic analysis was carried for a certain turbine blade-disc,and the stress and strain-time course was obtained in this paper.Based on probabilistic Miner's rule and strain field intensity(SFI)approach,the fatigue/creep life of turbine blade-disc was calculated by using K.N.Smith equation and Manson-Succop creep equation.Influential factors to the fatigue and creep were analyzed according to the life prediction results and some advices about utilization ... |
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| Keywords: | stochastic finite element method heat-fluid-solid coupling contact problem turbine blade-disc residual life prediction |
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