D-S证据理论在并发故障诊断技术中的研究进展

Research Progress on the Composite Fault Diagnosis Technology Based on Dempster-Shafer Evidential Theory

针对旋转机械并发故障诊断研究中存在的问题,近几年来很多学者把证据理论引入到该研究,以期提高诊断的准确性,但是基于证据理论的多重并发故障的诊断问题还处于起步阶段。阐述了以往关于证据理论在并发故障中的研究进程,并进行了分析研究,对其趋势作了进一步的展望。

For many complicated problems exist in the simultaneous fault diagnosis of rotating machinery, in recent years many scholars introduced evidential theory to the study of simultaneous fault, in order to improve the accuracy of diagnosis. But the studies about the multipie concurrent fault diagnosis technology based on Dempster- Sharer evidential theory are at the underway stage. In this paper, the up- to - date investigation progresses on the simultaneous fauIt diagnosis technology based on the evidential theory are stated and analyzed. The further progresses are described.