轴承故障声发射信号的涡旋聚焦传输方法  

A Vortex Focused Transmission Method for Bearing Fault Acoustic Emission Signals

作　　者：吴冠武 吴立群[1] 王洪成 王亚星[1] 郭金帅 张正 吴佳欣 李亮亮 WU Guanwu;WU Liqun;WANG Hongcheng;WANG Yaxing;GUO Jinshuai;ZHANG Zheng;WU Jiaxin;LI Liangliang(School of Mechanical Engineering,Hangzhou Dianzi University,Hangzhou,310018)

机构地区：[1]杭州电子科技大学机械工程学院,杭州310018

出　　处：《中国机械工程》2025年第1期78-86,共9页China Mechanical Engineering

基　　金：国家自然科学基金(52175460,52305462)。

摘　　要：针对滚动轴承内部供电及电信号传输难题,研究了基于声发射的轴承智能感知技术。首先,基于故障轴承转动振动特性构建声信号时序相差涡旋传输模型。然后,设计了环形中空式声超表面结构,研究了声涡旋聚焦机制及超表面透射性能,并仿真分析了故障类型与声场涡旋拓扑荷数的关联关系。最后,通过故障轴承的模拟与试验装置验证了轴承故障声发射信号的涡旋聚焦传输方法。Aiming at the challenges of internal power supply and electrical signal transmission in rolling bearings,the intelligent sensing technology for bearings was studied based on acoustic emission.Firstly,based on the rotational vibration characteristics of the faulty bearings,a temporal phase difference vortex transmission model of acoustic signals was constructed.Then,a circular hollow acoustic metasurface structure was designed,and the acoustic vortex focusing mechanism and metasurface transmission performance were studied.The correlation between fault types and acoustic vortex topological charges was simulated and analyzed.Finally,the vortex focusing transmission method of bearing fault acoustic emission signals was verified through simulation and experimental setup of faulty bearings.

关 键 词：声涡旋聚焦 时序相差模型 环形超表面 智能轴承 声发射信号 

分 类 号：TH133.33[机械工程—机械制造及自动化]