Sequential hypothesis testing;
Sequential probability ratio test (SPRT);
Fault condition recognition;
Multiple target hypothesis;
VIBRATION;
TRANSFORM;
SYSTEM;
D O I:
10.1016/j.ymssp.2013.06.023
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
A novel method for the fault condition recognition in which the recognition system interrogates a propagation channel adaptively and intelligently by using the available data is proposed based on sequential hypothesis testing. The waveform of the data in the propagation channel for the fault condition recognition is designed with the kurtosis of the measured data in time domain. The sequential hypothesis testing framework is proposed when hard decisions are made with adequate confidence. The distinguished characteristic of the channel recognition is that it operates in a closed loop and makes constant optimization in response to its changing understanding of the channel. The fault condition recognition of the gearbox is to update the multiple target hypothesis/class based on the measured data, customize waveform as the class probabilities changes, and make conclusion when the sufficient understanding of the propagation channel is achieved. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
机构:
Univ Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, England
Baydar, N
Ball, A
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h-index: 0
机构:
Univ Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, England
机构:
Univ Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, England
Baydar, N
Ball, A
论文数: 0引用数: 0
h-index: 0
机构:
Univ Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, EnglandUniv Manchester, Manchester Sch Engn, Maintenance Engn Res Grp, Manchester M13 9PL, Lancs, England