The majority of the existing fault diagnosis methods using Dempster-Shafer (DS) evidence theory
(DST) all provide the “static” fused results by combining several pieces of diagnosis evidence, which only reflect
the current running status of monitored equipment. This paper presents the dynamic diagnosis strategy by using
recursively the improved linear evidence updating rule. Its updated result can synthesize the diagnosis evidence
collected at historical, current and future time steps by dynamically adjusting the proposed smoothing linear
combination weights. The diagnosis examples of machine rotor show that the proposed method can provide more
reliable and accurate results than the diagnosis methods based on the classical updating strategies.
SHANG Qun-li1 (尚群立), ZHANG Zhen2 (张 镇), XU Xiao-bin2* (徐晓滨)
. Dynamic Fault Diagnosis Using the Improved Linear Evidence Updating Strategy[J]. Journal of Shanghai Jiaotong University(Science), 2015
, 20(4)
: 427
-436
.
DOI: 10.1007/s12204-015-1644-5
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