|本期目录/Table of Contents|

[1]王国富,张海如,张法全,等.时频压缩随机共振用于转子故障早期检测[J].电机与控制学报,2011,(06):38-44.
 WANG Guo-fu,ZHANG Hai-ru,et al.Frequency compression of SR for detecting rotor’s incipient fault signal[J].,2011,(06):38-44.
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时频压缩随机共振用于转子故障早期检测(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
期数:
2011年06
页码:
38-44
栏目:
出版日期:
2011-07-10

文章信息/Info

Title:
Frequency compression of SR for detecting rotor’s incipient fault signal
作者:
王国富; 张海如; 张法全; 叶金才;
桂林电子科技大学认知无线电与信息处理教育部重点实验室; 中国科学院西安光学精密机械研究所;
Author(s):
WANG Guo-fu1; 2; ZHANG Hai-ru1; ZHANG Fa-quan1; YE Jin-cai1
1.Key Laboratory Cognitive Radio and Information Processing of the Ministry of Education; Guilin University of Electronic Technology; Guilin 541004; China; 2.Xi’an Institute Optics and Precision Mechanics of CAS; Xi’an 710119; China
关键词:
转子 随机共振 时频压缩 早期故障检测 弱信号检测
Keywords:
rotor stochastic resonance frequency compression incipient fault signal weak signal detection
分类号:
TN911.23
DOI:
-
文献标志码:
A
摘要:
针对随机共振系统仅适用于小参数(小幅值、小频率)系统,而转子故障信号频率较高的问题。依据随机共振系统的基本理论,通过引入时频压缩算法,消除了随机共振系统对待测信号频率的限制,把随机共振系统扩展到全频段。理论和实测结果表明:通过连续的压缩变换,获得一个适当的输入信号到随机共振系统,根据谐振峰的变化及发变换运算即可得到原始信号所含的未知频率。该算法比传统扫频算法快了6个数量级,可以在极限信噪比下检测出故障信号(-50dB)。
Abstract:
Stochastic resonance system is only for small parameter(small amplitude and low frequency) system.However,the frequency of the fault signal of the rotor is higher than the stochastic resonance system.According to the basic theory of stochastic resonance systems,the limit of frequency range of the measure signal of the stochastic resonance system was eliminated by introducing the time-frequency compression algorithm,and stochastic resonance system was extended to the whole band.Theoretical and experimental r...

参考文献/References:

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备注/Memo

备注/Memo:
国家重点基础研究发展计划(973计划)(2008CB317109); 国防预研基金(A1120106BW0315)
更新日期/Last Update: 2011-11-15