基于虚拟仪器的列车冲动采集及等级的评定

Method of Train Vertical Impulse Detection and Grade Assessment Based on Virtual Instrument

介绍一种利用LabVIEW、LabWindows中强大的数据处理函数,如Correlate函数和ToPolar1D函数,对信号进行实时的分析、处理,以虚拟仪器为平台实现列车纵向冲动实时检测的方法。该方法能准确的将冲动加速度从振动加速度中分离,并评定出冲动等级,从而建立一套更为科学的列车冲动等级的评定标准。

This research introduced a method based on virtual instrument, which achieved the real time detection and assess- ment of train vertical impulse. It analysed and proc ＂essed the signal with the data proeessing functions, such as Correlate and ToPolarlD in the LabVIEW and LabWindows. This method eould detach impulse acceleration from vibration acceleration, which gave the grade of impulse, and established a more scientific assessment standard of train vertical impulse.