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采用一种包含加权水平可见图(WHVG)的图卷积网络(GCN),对采样的轴承震动时间序列数据分析,进行滚动轴承故障诊断。其中,对HVG中两节点的边,以节点距离的倒数作为权重进行加权,以削弱噪声节点对其他距离较远节点的影响。

C++ 7.83% Python 92.17%

fault-diagnosis-of-rolling-bearing-based-on-whvg-and-gcn_gin's Introduction

基于WHVG和GCN_GIN+的滚动轴承故障诊断

Part1:

SDtoHVG目录:

功能是将时间序列转化为水平可视图(HVG)

Part2:

GCN_GIN+目录:

功能是将HVG加权后放入GIN网络中学习以达到分类的目的

原理:

采用一种包含加权水平可见图(WHVG)的图卷积网络(GCN),对采样的轴承震动时间序列数据分析,进行滚动轴承故障诊断。HVG用于从几何角度将时间序列转换为图形数据。对HVG中两节点的边,以节点距离的倒数作为权重进行加权,以削弱噪声节点对其他距离较远节点的影响。此外,将图同构网络(GIN)改进为GIN+,在聚合层定义中引入权重指标,以更好地拟合WHVG的拓扑特征,并学习图的表征并进行故障分类。最后,通过CWRU的轴承数据集证明了WHVG和GIN的高效性能。

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