Hybrid approach based on immune algorithm and support vector machine and its application for fault diagnosis of hydraulic pump

Huifeng Niu; Wanlu Jiang; Siyuan Liu; Caiyun Dong

doi:10.1117/12.819737

31 December 2008 Hybrid approach based on immune algorithm and support vector machine and its application for fault diagnosis of hydraulic pump

Huifeng Niu, Wanlu Jiang, Siyuan Liu, Caiyun Dong

Author Affiliations +

Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71304X (2008) https://doi.org/10.1117/12.819737
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China

Abstract

This paper describes a hybrid fault diagnosis approach that combines the real-valued negative selection(RNS) algorithm and the support vector machine(SVM) and its application for fault diagnosis of hydraulic pump because it is very difficult to gain the fault samples in the fault diagnosis process of hydraulic pump. In this method, the RNS algorithm is used to generate the nonself set as the fault samples, which are used as the input to SVM algorithm for training purpose. The problem of lacking the fault samples is solved by using this new method. It is accomplished to eliminate the noise existing in the measured signals of hydraulic pump and pick up its features using the wavelet analysis method. Finally, the hydraulic pump fault samples are tested by using the hybrid approach. The classification right rate by this method is 90%, so it is valid for the fault diagnosis of Hydraulic Pump.

Citation Download Citation

Huifeng Niu, Wanlu Jiang, Siyuan Liu, and Caiyun Dong "Hybrid approach based on immune algorithm and support vector machine and its application for fault diagnosis of hydraulic pump", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71304X (31 December 2008); https://doi.org/10.1117/12.819737

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