| 基于广义频率响应函数的转子裂纹故障诊断方法研究 |
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| 引用本文： | 员险锋,李志农,赵匡,林言丽.基于广义频率响应函数的转子裂纹故障诊断方法研究[J].矿山机械,2011(9). |
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| 作者姓名： | 员险锋 李志农 赵匡 林言丽 |
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| 作者单位： | 南昌航空大学无损检测技术教育部重点实验室;郑州大学机械工程学院;北京控制工程研究所; |
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| 基金项目： | 国家自然科学基金(50775208,51075372); 湖南省机械设备健康维护重点实验室开放基金(200904) |
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| 摘 要： | 论述了广义频率响应函数的定义和算法,将广义频率响应函数引入到裂纹转子的故障诊断中,提出了一种基于广义频率响应函数(Generalized Frequency Response Function,GFRF)的裂纹转子故障诊断方法,该方法通过辨识前3阶频域核的特性,反映不同位置的裂纹转子的特征变化。试验结果证明了该方法的有效性,高阶GFRF对裂纹故障反映敏感。
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| 关 键 词： | 广义频率响应函数(GFRF) 非线性系统辨识 裂纹转子 故障诊断 |
Study on method of diagnosing rotor cracks based on generalized frequency response function |
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| YUAN Xianfeng,LI Zhinong,ZHAO Kuang,LIN Yanli Key Laboratory of Nondestructive Testing,Ministry of Education,Nanchang Hangkong University,Nanchang ,Jiangxi,China School of Mechanical Engineering,Zhengzhou University Beijing Institute of Control Engineering.Study on method of diagnosing rotor cracks based on generalized frequency response function[J].Mining & Processing Equipment,2011(9). |
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| Authors: | YUAN Xianfeng LI Zhinong ZHAO Kuang LIN Yanli Key Laboratory of Nondestructive Testing Ministry of Education Nanchang Hangkong University Nanchang Jiangxi China School of Mechanical Engineering Zhengzhou University Beijing Institute of Control Engineering |
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| Affiliation: | YUAN Xianfeng1,2,LI Zhinong1,ZHAO Kuang2,LIN Yanli3 1Key Laboratory of Nondestructive Testing,Ministry of Education,Nanchang Hangkong University,Nanchang 330063,Jiangxi,China 2School of Mechanical Engineering,Zhengzhou University 3Beijing Institute of Control Engineering |
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| Abstract: | The definition and the algorithm of the generalize frequency response function(GFRF) are introduced,and the GFRF is introduced to the fault diagnosis of rotor cracks.A method of diagnosing rotor cracks based on GFRF model is proposed.In the proposed method,the preceding three orders of GFRF frequency kernels are identified so as to indicate the characteristics of the cracked rotors at different crack location.The experiment results show that the proposed method is effective,and the higher-order GFRF is sens... |
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| Keywords: | generalized frequency response function(GFRF) nonlinear system identification cracked rotor fault diagnosis |
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