本发明提供了一种声振结合的高速铁路钢轨波磨识别方法和装置,该方法包括:获取振动信号和声信号;根据振动信号,确定振动信号能量因子和振动信号波磨指数;根据声信号,确定声能量因子和声波磨指数;根据振动信号和声信号,确定声振复合能量因子和声振复合波磨指数;根据振动信号能量因子、振动信号波磨指数、声能量因子、声波磨指数、声振复合能量因子和声振复合波磨指数,确定高速铁路钢轨波磨识别结果。利用声振结合的方法,抑制动态响应信号中的干扰项,提高信号中周期性成分的能量集中度;发挥声振信号的互补性,避免检测时漏检;提高对短波早期病害的探测能力,识别早期周期性病害,利用声振结合为综合识别评价钢轨波磨提供依据。
The invention provides a sound and vibration combined high-speed railway steel rail corrugation identification method and device. The method comprises the following steps: acquiring a vibration signal and a sound signal; determining a vibration signal energy factor and a vibration signal corrugation index according to the vibration signal; according to the sound signal, determining a sound energy factor and a sound wave abrasion index; determining a sound-vibration composite energy factor and a sound-vibration composite corrugation index according to the vibration signal and the sound signal; and according to the vibration signal energy factor, the vibration signal corrugation index, the sound energy factor, the sound wave corrugation index, the sound-vibration composite energy factor and the sound-vibration composite corrugation index, determining a high-speed railway steel rail corrugation recognition result. Interference terms in dynamic response signals are suppressed by using a sound-vibration combination method, and the energy concentration ratio of periodic components in the signals is improved; the complementarity of sound and vibration signals is exerted, and missing detection during detection is avoided; the detection capability of short-wave early-stage diseases is improved, early-stage periodic diseases are recognized, and a basis is provided for comprehensive recognition and evaluation of steel rail corrugation through sound and vibration combination.
声振结合的高速铁路钢轨波磨识别方法和装置
2023-10-17
Patent
Elektronische Ressource
Chinesisch