| 基于互相关和混沌振子阵列的转子早期碰擦故障检测 |
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| 引用本文： | 郭阳明,翟正军,姜红梅,马捷中.基于互相关和混沌振子阵列的转子早期碰擦故障检测[J].航空动力学报,2008,23(12):2219-2223. |
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| 作者姓名： | 郭阳明 翟正军 姜红梅 马捷中 |
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| 作者单位： | 西北工业大学 计算机学院, 西安 710072 |
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| 基金项目： | 国防“十一五”基础研究(B2720060300); 航空科学基金(2007ZD53040); 西北工业大学青年科技创新基金(W016231); 西北工业大学研究生创业种子基金(Z200753) |
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| 摘 要： | 为了提高早期故障检测的准确性和有效性,提出了运用互相关去噪和构建混沌振子阵列,通过阵列扫描实现早期微弱故障的多个特征频率信号检测的方法.该方法将经过互相关去噪后的信号送入到混沌振子检测阵列中,让其作为混沌检测系统周期策动力的一部分,通过混沌检测系统相轨迹变化检测出表征同一微弱故障的多个频率信号.飞机转子系统早期碰擦故障检测为例验证了该方法的可行性.
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| 关 键 词： | 互相关 混沌振子阵列 微弱信号检测 转子碰擦 故障检测 |
| 收稿时间： | 2007/11/29 0:00:00 |
| 修稿时间： | 2008/4/28 0:00:00 |
Fault detection of early rotor rub-impact based on cross-correlation and chaos oscillator array |
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| GUO Yang-ming,ZHAI Zheng-jun,JIANG Hong-mei and MA Jie-zhong.Fault detection of early rotor rub-impact based on cross-correlation and chaos oscillator array[J].Journal of Aerospace Power,2008,23(12):2219-2223. |
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| Authors: | GUO Yang-ming ZHAI Zheng-jun JIANG Hong-mei and MA Jie-zhong |
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| Institution: | School of Computer Science, Northwestern Polytechnical University, Xi'an 710072, China |
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| Abstract: | In order to improve the veracity and effectiveness of the early fault detection,the method of early detection method of weak fault signals with multi-character frequencies was proposed through array scan,by employing cross-correlation for denoising and building chaos oscillators array.In this method,the denoised signals were sent to the chaos oscillator detection array to act as a part of the chaos detection system's periodical driving force,and then the weak fault signals could be detected from the system'... |
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| Keywords: | cross-correlation chaos oscillators array weak signal detection rotor rub-impact fault detection |
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