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| Feature Extraction Based on Double Inverse Limit Space in Hydraulic System |
| ZHU Dan-dan,LIAN Li-na,ZHANG Yu-cun |
| Yanshan University, Qinhuangdao, Hebei 066004, China |
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Abstract In order to extract leakage information of forging hydraulic press hydraulic system, a method of feature extraction based on double inverse limit space is proposed. The leakage information space of large forging hydraulic press hydraulic system is established, and double inverse limit space is established based on the leakage information space, and the two spaces are topological isomorphism. In a double inverse limit space, the large forging hydraulic press hydraulic system of leakage is reflected through the topological isomorphism. The feasibility of this theory is verified by simulation. The results show that ,the method of feature extraction based on double inverse limit space is more suitable for extracting the leakage coupling characteristics, the characteristics of information leakage extracted by this method has very good detection and location capability.
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［1］周红卫.轧钢设备液压系统泄露故障及防控研究［J］.机电信息,2012,36(1):78-79.
［2］李宝利.工业生产中液压系统泄露的因素与控制［J］.中国科技博览,2012,(10):238.
［3］徐夫超.浅谈煤矿液压系统泄露的原因与控制［J］.商情,2013,（27）:12.
［4］王学伟,胡令彬.采用第二代小波变换的功率测量方法［J］.计量学报,2008,29(1):73-76.
［5］俞阿龙.基于多重小波变换的力微分信号去噪研究 ［J］.计量学报,2008,29(3):235-237.
［6］黄建招,谢建,李良.基于小波变换的泄露故障特征提取研究 ［J］.计算机测量与控制, 2012,(3): 586-589.
［7］李红兵,常天海,费业泰.基于主成分分析改进腊肠包装净含量测控技术的研究［J］.计量学报,2008,29(5):484-488.
［8］桑海峰,苑玮琦,张志佳,等.基于二维主成分分析的掌纹识别研究［J］.仪器仪表学报,2008,29(9):1929-1932.
［9］陈果,周伽.小样本数据的支持向量机回归模型参数及预测区间研究［J］.计量学报,2008,29(1):92-96.
［10］周汝胜,焦宗夏,王少萍.液压系统故障诊断技术的研究现状与发展趋势［J］.机械工程学报,2006,42(9): 6-14.
［11］张玉存,马睿,付献斌,等.基于拓扑动力系统的机械系统特征信息分析方法［J］.燕山大学学报,2011,35(6):538-542. |
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2015, Vol. 36 
