| 飞机主梁疲劳裂纹萌生声发射信号的识别方法 |
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| 引用本文： | 耿荣生,景鹏,雷洪,李伟,邵进. 飞机主梁疲劳裂纹萌生声发射信号的识别方法[J]. 航空学报, 1996, 17(3): 368-372 |
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| 作者姓名： | 耿荣生 景鹏 雷洪 李伟 邵进 |
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| 作者单位： | 空军第一研究所!北京，100076，空军第一研究所!北京，100076，空军第一研究所!北京，100076，北京燕山石化公司锅炉压力容器检验所!北京，102549，北京燕山石化公司锅炉压力容器检验所!北京，102549 |
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| 摘 要： | 提出利用多参数识别和相关技术在高背景噪声环境下获取裂纹萌生所产生的声发射信号,并在试验进行到近 5 0 0 0 fh时预报出主梁螺栓孔长度不足 0 .5 mm裂纹的萌生
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| 关 键 词： | 声发射 疲劳裂纹 多参数识别 相关分析 |
IDENTIFICATION OF ACOUSTIC EMISSION SIGNALS PRODUCED BY FATIGUE CRACK INITIATION IN WING SPARS OF AIRCRAFT |
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| Geng Rongsheng,Jing Peng,Lei Hong. IDENTIFICATION OF ACOUSTIC EMISSION SIGNALS PRODUCED BY FATIGUE CRACK INITIATION IN WING SPARS OF AIRCRAFT[J]. Acta Aeronautica et Astronautica Sinica, 1996, 17(3): 368-372 |
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| Authors: | Geng Rongsheng Jing Peng Lei Hong |
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| Affiliation: | 1. P.O.Box Beijing 9203 16,Beijing,100076;2. Beijing Yan Shan Pet rochemical Corp. ,Beijing, 102549 |
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| Abstract: | An attempt has been made to use acoustic emission (AE) to monitor the initiation and growth of fatigue cracks of aircraft under fullsize fatigue test.Multi|parameter identification and correlation techniques are proposed to distinguish between genuine (crack|related) AE signals and background noises.The initiation of a fatigue crack of less than 0.5mm was predicted in time. |
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| Keywords: | acoustic emission (AE) fatigue crack multi|parameter identification correlation |
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