| 随机振动载荷下连接螺栓振动疲劳强度分析 |
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| 引用本文： | 王红珍,喻琴,李刚,邓兴民.随机振动载荷下连接螺栓振动疲劳强度分析[J].航空工程进展,2019,10(S1):28-33. |
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| 作者姓名： | 王红珍 喻琴 李刚 邓兴民 |
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| 作者单位： | 庆安集团有限公司航空设备研究所,庆安集团有限公司航空设备研究所,庆安集团有限公司航空设备研究所,庆安集团有限公司航空设备研究所 |
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| 摘 要： | 通过有限元分析计算出连接螺栓上的载荷,理论计算得出连接螺栓上的1 振动应力,基于高斯分布和线性累计损伤定律的三区间法,结合材料的S-N曲线,对连接螺栓进行随机振动载荷下的振动疲劳强度进行评估。
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| 关 键 词： | 连接螺栓 随机振动疲劳强度 有限元 |
| 收稿时间： | 2019/1/16 0:00:00 |
| 修稿时间： | 2019/2/20 0:00:00 |
Analysis of Bolt Vibration Fatigue under Random Vibration Loadings |
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| wanghongzhen,yuqin,ligang and dengxingmin.Analysis of Bolt Vibration Fatigue under Random Vibration Loadings[J].Advances in Aeronautical Science and Engineering,2019,10(S1):28-33. |
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| Authors: | wanghongzhen yuqin ligang and dengxingmin |
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| Abstract: | For the problem of fatigue failure on of bolt in random vibration test, the random vibration fatigue life is estimated by finite element method. The method is based on the information of the frequency domain of random loading history. In this paper, bolts are simulated by rigid connection. Firstly, the stress transfer function of the structure is analyzed by frequency response simulation, obtained peaks per second of the bolt. Secondly, the force of bolt was picked. Thirdly, the stress of bolt was calculated. Combined with S-N curve of 17-4PH and fatigue damage accumulation theory, random vibration fatigue life of bolt is analyzed by Three-band method. |
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| Keywords: | Bolt random Vibration Fatigue stiffness Finite Element Analysis |
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