波束成形技术在货车轴承检测中的应用

Application of the Beam Forming Technique in Inspection of Freight Car Bearings

分析了波束成形技术的原理和特点,并结合该技术在铁路车辆滚动轴承故障轨边声学诊断中的应用实例,证明波束成形技术可以提高信号处理质量,消除干扰,突出故障轴承的特征信号,为故障轴承的检测提供可靠依据。

The principles and features of the beam forming technique are analyzed.In combination with the practical example of application of the technique in the trackside acoustic detection of troubles in rolling bearings for railway cars,it is proved that the beam forming technique can improve the signal processing quality,eliminate interference,highlight the feature signal of the bearings with trouble and provide reliable basis for inspection of the bearings in trouble.