基于多惩罚因子优化VMD的滚动轴承故障特征提取方法
李波, 胡哿郗, 石剑钧, 刘恒畅, 洪涛

Fault feature extraction method of rolling bearing based on multiple penalty factors optimization VMD
Bo LI, Gexi HU, Jianjun SHI, Hengchang LIU, Tao HONG
图11 GWO-VMD后4个IMF的包络谱
Fig.11 Envelope spectrum of four IMF after GWO-VMD