Intelligent fault diagnosis of bearings driven by double-level data fusion based on multichannel sample fusion and feature fusion under time-varying speed conditions

• Zhongwei ZhangShandong University of Technology
• Zonghao JiaoShandong University of Technology
• Youjia LiShandong University of Technology
• Mingyu ShaoShandong University of Technology
• Xiangjun DaiShandong University of Technology