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二维联合模糊的液压系统故障诊断专家系统

DOI: 10.3969/j.issn.1674-0696.2012.06.31, PP. 1227-1231

Keywords: 小波分析,联合权重分配法,模糊故障诊断,专家系统,waveletanalysis,unitedweightingallocationmethod,fuzzyfaultdiagnosis,expertsystem

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Abstract:

:?提出了基于二维联合模糊评判的液压系统故障在线诊断方法;用MATLAB小波分析与模糊评判相结合的双重故障诊断模式,运用联合权重分配法构建故障诊断专家系统模糊矩阵;采用复杂样本方差估计,得出一个客观合理的故障征兆向量,实现了液压系统故障诊断的实时性,精确性;建立了起重机液压系统故障诊断专家系统。

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