| 尺寸因素对轮盘低周疲劳寿命散度的影响 |
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| 引用本文： | 徐林耀,孙秦.尺寸因素对轮盘低周疲劳寿命散度的影响[J].航空动力学报,1990,5(4):361-363,377. |
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| 作者姓名： | 徐林耀 孙秦 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 本文以实际涡轮盘某些关键部位的几何形状为参考,用GH33A加工出不同R的圆弧形光滑试样和不同r的圆柱Ⅴ型缺口试样,在“岛津”试验机上,以试验温度650℃进行低周疲劳试验。模拟轮盘的实际载荷按控制载荷的方式进行。
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| 收稿时间： | 4/1/1990 12:00:00 AM |
INFLUENCE OF SIZE FACTOR ON SCATTER DEGREE OF THE LOW CYCLE FATIGUE LIFE OF A DISK |
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| Xu Linyao and Sun Qin.INFLUENCE OF SIZE FACTOR ON SCATTER DEGREE OF THE LOW CYCLE FATIGUE LIFE OF A DISK[J].Journal of Aerospace Power,1990,5(4):361-363,377. |
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| Authors: | Xu Linyao and Sun Qin |
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| Institution: | Northwestern Polytechnical University |
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| Abstract: | From mathematical statistics of test data has been drawn the following conclusion:the low cycle fatigue life of disks scatters due to their size difference.The cylic stress strain curve and the strain life relationship of a materical must consider requirements of the survival probability and believable degree when the low cycle fatigue life of a disk is estimated with the partial stress strain method.This paper also provides an approximate correction method for the preliminary estimation of the low cycle fatigue life of a disk. |
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