摘要
In order to evaluate the creep deformation of turbine blade under multiple loading cases in the engineering design stage, a method of equivalent isochronous stress-strain curve based on the isochronous stress-strain curve corresponding to the single loading case was proposed. The method was carried out and tested by an aeroengine's long-term trial. The results show that, the average relative error of the residual radial deformation of turbine blade computed by the proposed method is 15.30% with that of the aeroengine's long-term trial, but for the two other commonly used methods, one is the two-dimensional analysis method based on the beam theory and the other is the three-dimensional FE analysis method based on the time step, the corresponding comparison results are 45.35% and 31.14%, respectively, which indicates the good application of the proposed method.
投稿的翻译标题 | Creep Analysis of Metal Materials under Multiple Loading Cases Based on Equivalent Isochronous Stress-Strain Curve |
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源语言 | 繁体中文 |
页(从-至) | 1105-1110 |
页数 | 6 |
期刊 | Tuijin Jishu/Journal of Propulsion Technology |
卷 | 39 |
期 | 5 |
DOI | |
出版状态 | 已出版 - 1 5月 2018 |
已对外发布 | 是 |
关键词
- Aeroengine
- Creep
- Damage
- Isochronous stress-strain curve
- Turbine blade