| 等寿命曲线的一种高次拟合法 |
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| 引用本文： | 杨德荣.等寿命曲线的一种高次拟合法[J].航空学报,1988,9(2):82-86. |
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| 作者姓名： | 杨德荣 |
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| 作者单位： | 南昌飞机制造公司 |
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| 摘 要： | <正> 一、引言 用名义应力法估算构件的疲劳寿命,必然要用到材料的等寿命曲线或S-N曲线。材料现有的曲线有限,使得在计算和设计构件的等寿命曲线时,不得不采用近似处理方法,给寿命估算带来误差和不便。因此,设计使用简便、误差少的构造等寿命曲线的方法,有现实意义。
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| 收稿时间： | 1986-09-02; |
A HIGH ORDER CURVE FITTING FOR ISOLIFE CURVES |
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| Yang Derong.A HIGH ORDER CURVE FITTING FOR ISOLIFE CURVES[J].Acta Aeronautica et Astronautica Sinica,1988,9(2):82-86. |
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| Authors: | Yang Derong |
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| Institution: | Nanchang Aircraft Manufacture Company |
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| Abstract: | This paper presents a high order curve fitting-polynomial curve fitting for isolife curves. The results show that the calculated curves are in good agreement with the existing material curves, and the relative error of the calculated life to the experimental data of structural member is reduced by 30% |
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| Keywords: | isolife curves fitting relative error |
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