基于共振解调的地铁风机振动监测系统研究  

Research on Vibration Monitoring System of Metro Fan Based on Resonance Demodulation

作　　者：徐聪 许庆志 许相凯 XU Cong;XU Qingzhi;XU Xiangkai(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031

出　　处：《智慧轨道交通》2023年第2期51-55,71,共6页SMART RAIL TRANSIT

摘　　要：针对地铁线路中的风机设备,分析了振动监测研究的重要性和必要性,设计了一套完整的地铁风机振动监测系统,主要从传感器选择、系统组成、共振解调诊断原理等方面进行了详细的描述;系统采集风机轴承振动加速度、转速、温度等数据,通过计算时域特征冲击值与频域谱分析,快速精确地诊断风机故障类型,实现针对性的故障维修;通过监测风机设备运行状态,预测设备状态未来的发展趋势,判断可能的故障模式,实现对地铁风机故障的预测性维修。Aiming at the fan equipment in the subway line,the importance and necessity of vibration monitoring research are analyzed,and a complete subway fan vibration monitoring system is designed,which is described in detail from the aspects of sensor selection,system composition,resonance demodulation diagnosis principle and so on;The system collects the vibration acceleration,speed,temperature and other data of the fan bearing,and through the calculation of time-domain characteristic shock value and frequency-domain spectrum analysis,it can quickly and accurately diagnose the fan fault type and realize targeted fault maintenance;By monitoring the operation status of the fan equipment,predict the future development trend of the equipment status,judge the possible failure mode,and realize the predictive maintenance of the subway fan failure.

关 键 词：地铁风机 共振解调 振动监测 预测性维修 

分 类 号：U231.5[交通运输工程—道路与铁道工程]