| 疲劳寿命计疲劳响应模型研究 |
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| 引用本文： | 胡明敏,方义庆,魏平. 疲劳寿命计疲劳响应模型研究[J]. 河海大学学报(自然科学版), 2004, 32(3): 287-290 |
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| 作者姓名： | 胡明敏 方义庆 魏平 |
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| 作者单位： | 南京航空航天大学航空宇航学院,江苏,南京,210016;南京航空航天大学航空宇航学院,江苏,南京,210016;南京航空航天大学航空宇航学院,江苏,南京,210016 |
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| 基金项目： | 国家"863"计划资助项目(2001AA602023) |
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| 摘 要： | 对疲劳寿命计恒幅加载的响应性能进行了全域实验研究,得到疲劳响应的电阻变化标定数据曲线．在此基础上,根据电阻变化等效方法,建立了任意循环加载下疲劳响应的数学计算模型,并给出了任意加载下电阻响应误差的全域统计分布函数．通过多级加载实验对计算模型进行验证,说明此计算方法能准确预测电阻变化量。
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| 关 键 词： | 敏感元件 疲劳寿命计 疲劳损伤 健康监测 |
| 文章编号： | 1000-1980(2004)03-0287-04 |
| 修稿时间： | 2004-11-11 |
Study on fatigue response model for fatigue life gauge |
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| HU Ming-min,FANG Yi-qing,WEI Ping. Study on fatigue response model for fatigue life gauge[J]. Journal of Hohai University (Natural Sciences ), 2004, 32(3): 287-290 |
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| Authors: | HU Ming-min FANG Yi-qing WEI Ping |
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| Abstract: | A full-range experimental study is performed on the response performance of the fatigue life gauge under constant load increments, and the calibration curve of resistance variation in response to fatigue is obtained. Based on the equivalent resistance variation method, a mathematical model for fatigue response under random cyclic loading is developed, and the function of the full-range statistical distribution of resistance response error is also given under random loading. Finally, multistage loading experiments are performed to verify the model, and the result shows that the calculating method can predict the variation of resistance accurately. |
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| Keywords: | sensitive element fatigue life gauge fatigue damage health monitoring |
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