| 飞机主承力构件疲劳裂纹萌生和扩展的声发射评价 |
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| 引用本文： | 耿荣生 景鹏. 飞机主承力构件疲劳裂纹萌生和扩展的声发射评价[J]. 无损检测, 1999, 21(4): 145-148 |
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| 作者姓名： | 耿荣生 景鹏 |
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| 作者单位： | 空军第一研究所 北京100076 |
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| 摘 要： | 讨论了利用声发射(AE)监测飞机关键部位疲劳裂纹形成和扩展的意义、可行性以及应当注意的问题.提出利用多参数识别和相关技术从高背景噪声中获取裂纹扩展所产生的声发射信号,并曾在疲劳试验过程中多次成功预报了飞机一些主承力构件的疲劳裂纹萌生和扩展.
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| 关 键 词： | 声发射检验 疲劳裂纹 飞机 信息处理 |
ACOUSTIC EMISSION EVALUATION OF FATIGUE CRACK INITIATION AND PROPAGATION IN MAIN STRUCTURES OF AIRCRAFT |
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| Geng Rongsheng Jing Peng Lei Hong. ACOUSTIC EMISSION EVALUATION OF FATIGUE CRACK INITIATION AND PROPAGATION IN MAIN STRUCTURES OF AIRCRAFT[J]. Nondestructive Testing, 1999, 21(4): 145-148 |
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| Authors: | Geng Rongsheng Jing Peng Lei Hong |
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| Affiliation: | The First Research Institute of the Airforce |
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| Abstract: | Studies were made on the feasibility of using acoustic emission (AE) to evaluate fatigue crack initiation and propagation in main structures of an aircraft under full-size fatigue test. Combinations of multiparameter recognition and correlation analysis were proposed to identify the genuine crack-related AE signals. Successes have been made in fatigue tests of aircraft. |
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| Keywords: | Acoustic emission inspection Fatigue crack Aircraft Signal processing |
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