| 涡轮叶片的持久寿命预测模型 |
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| 引用本文： | 孙兴华,蔡志勤,姜立学,周柏卓,王德伦. 涡轮叶片的持久寿命预测模型[J]. 计算力学学报, 2008, 25(Z1) |
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| 作者姓名： | 孙兴华 蔡志勤 姜立学 周柏卓 王德伦 |
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| 作者单位： | 大连理工大学工程力学系工业装备结构分析国家重点实验室;大连理工大学机械工程学院;沈阳发动机设计研究所; |
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| 基金项目： | 航空基础科学基金 |
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| 摘 要： | 镍基高温合金用于制造发动机的高压涡轮叶片.为了提高涡轮叶片持久寿命设计参数选取和设计方法的可靠性,从涡轮叶片代表性部位取材并设计、加工试验试件,进行持久寿命试验.试验过程中记录试件的变形量,进而推算出其蟠变应变,然后利用修正θ-Project Concept法来建立其持久寿命预测方程,并对其进行验证.
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| 关 键 词： | 涡轮叶片 持久寿命 修正θ-Project Concept法 |
The predicting model of endurance life for a turbine blade |
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| SUN Xing-hua,CAI Zhi-qin,JIANG Li-xue,ZHOU Bai-zhuo,WANG De-lun. The predicting model of endurance life for a turbine blade[J]. Chinese Journal of Computational Mechanics, 2008, 25(Z1) |
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| Authors: | SUN Xing-hua CAI Zhi-qin JIANG Li-xue ZHOU Bai-zhuo WANG De-lun |
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| Affiliation: | 1.Department of Engineering Mechanics;State Key Laboratory of Structural Analysis for Industrial Equipments;Dalian University of Technology;Dalian 116024;China;2.School of Mechanical Engineering;Da lian University of Technology;3.Shenyang Aeroengine Research Institute;Shenyang 110015;China |
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| Abstract: | The directionally crystal nickel-based high-temperature alloy is used for the turbine blade of some advanced engines recently.In order to enhance the reliability of design parameters and design method for the endurance life of the turbine blade,the endurance life experiments are made on the specimens cut from the typical part of the turbine blades.For each specimen,its endurance life and creep deformation values at different time are recorded during the endurance life experiment,and creep strains are gained... |
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