| 声发射技术在立柱缸体裂纹监测中的应用研究 |
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| 引用本文： | 姚玉维.声发射技术在立柱缸体裂纹监测中的应用研究[J].工矿自动化,2011,37(8):56-60. |
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| 作者姓名： | 姚玉维 |
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| 作者单位： | 煤炭科学研究总院检测研究分院,北京,100013 |
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| 摘 要： | 针对立柱缸体在做强度试验和型式试验时出现的缸体破裂现象,提出了一种基于声发射技术的立柱缸体裂纹监测方案。该方案采用声发射技术捕捉、分析、处理和显示立柱在受压过程中产生的裂纹弹性波;采用时差定位法获得声发射源位置;采用小波包技术处理声发射信号,以进一步提高了定位精度。测试结果表明,声发射技术用于检测立柱缸体裂纹、焊缝等隐形机理的产生、发展和进行危险性分析是可行的。
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| 关 键 词： | 液压支架 立柱 缸体裂纹 监测 声发射 时差定位 小波包 |
Application Research of Acoustic Emission Technology in Crack Monitoring of Column Cylinder |
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| YAO Yu-wei.Application Research of Acoustic Emission Technology in Crack Monitoring of Column Cylinder[J].Industry and Automation,2011,37(8):56-60. |
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| Authors: | YAO Yu-wei |
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| Affiliation: | YAO Yu-wei(Test Branch of China Coal Research Institute,Beijing 100013,China) |
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| Abstract: | In view of problem of fracture of cylinder in strength test and type test for column cylinder,the paper put forward a scheme of crack monitoring of column cylinder based on acoustic emission technology.The scheme uses acoustic emission technology to capture,analyze,process and display elastic wave of crack produced in compression process of column,uses time difference location method to get position of acoustic emission source,and uses wavelet packet technology to process acoustic emission signal to improve... |
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| Keywords: | hydraulic support column crack of cylinder monitoring acoustic emission time difference location wavelet packet |
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