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Application of Adaptive Filtering in the Fault Diagnosis of Vehicle Gearbox
Author(s): 
Pages: 98-100,103
Year: Issue:  6
Journal: Journal of Mechanical Transmission

Keyword:  变速箱故障诊断振动测量自适应滤波Hilbert变换;
Abstract: 采用振动测量方法进行齿轮箱故障诊断是一种有效的技术手段,但是在进行随车监测时测量信号会受到车辆其它部件振动噪声的干扰.通过对装甲车辆变速箱齿轮断裂故障进行实车模拟试验,同步测量了变速箱体振动信号和发动机振动信号,利用自适应滤波技术滤除了混杂在变速箱体振动信号中的发动机振动干扰,对变速箱体振动信号进行了时、频域分析和调制解调分析.通过Hilbert 变换和包络谱分析方法提取了振动信号频率特征,实现了对变速箱齿轮断裂故障的诊断.
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