基于六自由度振动台的车辆构架运动姿态测量

韩志; 陈春雷; 傅强; 郝晋斐; 程朝阳

doi:10.3969/j.issn.1000-1158.2023.04.11

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计量学报 ›› 2023, Vol. 44 ›› Issue (4) : 562-567. DOI: 10.3969/j.issn.1000-1158.2023.04.11

力学计量

基于六自由度振动台的车辆构架运动姿态测量

韩志,陈春雷,傅强,郝晋斐,程朝阳

作者信息 +

Motion Attitude Measurement Method of Bogie Based on Six Degrees of Freedom Vibration Table

HAN Zhi,CHEN Chun-Lei,FU Qiang,HAPO Jin-Fei,CHENG Zhao-Yang

Author information +

文章历史 +

摘要

轨道几何动态检测是保障列车安全运营的重要手段,而车辆构架运动姿态测量结果的准确性直接影响到轨道几何动态检测的可靠性。为提高车辆构架运动姿态检测的准确性,提出了一种基于六自由度振动台的构架运动姿态测量方法。在模拟构架上施加不同的激励信号,利用安装测点布置位置上的4个三轴加速度计采集加速度信号,通过快速傅里叶变换的频域积分方法和基于位移数据的姿态计算算法,将加速度信号转化为模拟构架几何中心的位移及转角,并以六自由度振动台的输入信号作为标准,开展构架姿态测量方法的验证试验,结果表明构架姿态测量算法的横向位移、垂向位移、侧滚、摇头中误差分别小于0.04mm,0.03mm,0.05°,0.03°。

Abstract

Track geometry dynamic detection is an important means to ensure the safe operation of trains.The reliability of track geometry dynamic detection is affected by the veracity of motion attitude measurement results of vehicle bogie.In order to improve the accuracy of motion attitude detection results of vehicle bogie,a method of frame motion attitude measurement based on six degree of freadom shaking table was proposed.Different excitation signals are applied to the bogie.Four triaxial accelerometers are used to collect acceleration signals.The acceleration signal is converted to simulate the displacement and rotation of bogie's geometric center through the frequency domain integration method of fast Fourier transform and attitude calculation algorithm based on displacement data.The verification test of bogie attitude measurement method was carried out with the input signal of six degree of freadom shaking table as the standard.The results show that the lateral displacement,vertical displacement,roll and swing root mean square difference of bogie attitude measurement algorithm are less than 0.04mm,0.03mm,0.05° and 0.03° respectively.

导出引用

韩志,陈春雷,傅强,郝晋斐,程朝阳. 基于六自由度振动台的车辆构架运动姿态测量[J]. 计量学报. 2023, 44(4): 562-567 https://doi.org/10.3969/j.issn.1000-1158.2023.04.11

HAN Zhi,CHEN Chun-Lei,FU Qiang,HAPO Jin-Fei,CHENG Zhao-Yang. Motion Attitude Measurement Method of Bogie Based on Six Degrees of Freedom Vibration Table[J]. Acta Metrologica Sinica. 2023, 44(4): 562-567 https://doi.org/10.3969/j.issn.1000-1158.2023.04.11

中图分类号： TB936

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