| 金属磁记忆在齿轮早期微裂纹检测中的应用 |
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| 引用本文： | 崔玲丽,康晨晖,张建宇,高立新,胥永刚.金属磁记忆在齿轮早期微裂纹检测中的应用[J].北京工业大学学报,2012,38(10):1441-1445. |
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| 作者姓名： | 崔玲丽 康晨晖 张建宇 高立新 胥永刚 |
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| 作者单位： | 北京工业大学机电学院先进制造技术北京市重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金资助项目，北京市属高等学校人才强教计划项目 |
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| 摘 要： | 依据金属磁记忆检测的基本原理,提出关于齿轮早期局部微裂纹缺陷的漏磁信号模型,指出在裂纹区域,漏磁场的切向分量具有峰值,而法向分量过零、其梯度具有峰值,分析了裂纹深度对上述特征的影响,并将上述理论应用于实际齿轮表面微裂纹检测,显微分析的结果论证了磁记忆检测的有效性。
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| 关 键 词： | 金属磁记忆 齿轮 微裂纹检测 |
Application of Metal Magnetic Memory in Gear Early Micro Cracks Testing |
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| CUI Ling-li,KANG Chen-hui,ZHANG Jian-yu,GAO Li-xin,XU Yong-gang.Application of Metal Magnetic Memory in Gear Early Micro Cracks Testing[J].Journal of Beijing Polytechnic University,2012,38(10):1441-1445. |
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| Authors: | CUI Ling-li KANG Chen-hui ZHANG Jian-yu GAO Li-xin XU Yong-gang |
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| Affiliation: | (Key Laboratory of Advanced Manufacturing Technology,College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Based on basic principle of metal magnetic memory(MMM),this paper proposes a model of magnetic flux leakage signal of gear early local micro cracks.The tangential component of magnetic flux leakage signal will peak at the crack area while the normal component will pass zero point and its gradient has the peak.The effect of the crack depth on the characteristics has also been considered.The theory is then applied to detection of micro cracks on the tooth surface of an actual gear.The microscopic analysis results demonstrate the effectiveness of the magnetic memory testing. |
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| Keywords: | metal magnetic memory(MMM) gear micro cracks detection |
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