The invention provides a track irregularity evaluation method and device. The method comprises the following steps: establishing a vehicle track bridge coupling model; analyzing the vibration responseof the vehicle track bridge coupling system; calculating a wavelength weight curve of the uneven height of the on-bridge track; dividing the height unevenness of the on-bridge track into N frequencybands according to the spatial frequency range of the weight curve, and filtering; and solving a standard deviation of each frequency band track irregularity, endowing each frequency band center frequency with a wavelength weight coefficient corresponding to each frequency band center frequency, and finally obtaining an on-bridge track weighted quality index through summation. By adopting the evaluation method and device, the accuracy is high, and the calculation efficiency can be improved.
本发明提供一种轨道不平顺评估方法和装置,所述方法包括如下步骤:建立车辆‑轨道‑桥梁耦合模型;分析所述车辆‑轨道‑桥梁耦合系统的振动响应;计算桥上轨道高低不平顺的波长权重曲线;将桥上轨道高低不平顺根据权重曲线的空间频率范围划分为N个频带,并进行滤波;对各频带轨道不平顺求标准差,再赋予各频带中心频率对应的波长权重系数,最后通过求和得到桥上轨道加权质量指数。采用本发明的评估方法和装置,准确度高且能提升计算效率。
On-bridge track irregularity evaluation method and device
一种桥上轨道不平顺评估方法和装置
2021-03-26
Patent
Electronic Resource
Chinese
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