基于改进的希尔伯特黄变换的路面纹理与抗滑性能研究
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作者单位:

1.新疆大学建筑工程学院;2.清华大学

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中图分类号:

U416.2

基金项目:

国际项目:交通基础设施全自动数据采集及智能分析平台建设(20203910013)


Application of Improved Hilbert-Huang Transformation in Pavement Texture and Skid-resistance Performance Study
Author:
Affiliation:

1.School of Architecture and Engineering,Xinjiang University;2.Department of Civil Engineering,Tsinghua university

Fund Project:

Construction of data collection and analysis platform for transportation infrastructure management(20203910013)

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    摘要:

    通过分析路面三维纹理信息,研究路面纹理与抗滑性能的相关性。实验首先使用高精度路面纹理采集设备分别提取AC-13和AC-16沥青车辙板试件三维纹理信息。运用基于集合经验模态分解(EEMD)算法的最优降噪光滑模型对车辙板试件的三维纹理信息进行滤波降噪,并对其进行三维重构。然后通过补充集合经验模态分解(CEEMD)算法对二维纹理信号进行分解得到固有模态函数IMFs,同时有针对性地选择与原信号相关性最高的IMF做希尔伯特变换得到瞬时频率和瞬时幅值。最后提出最大相关系数()作为表征抗滑性能的指标。试验结果表明:与路面摩擦系数的相关性在0.8以上,将作为新的抗滑性能评价指标具有优异的可行性。

    Abstract:

    This paper studied the correlation between pavement texture and skid resistance through analysis of three-dimensional texture information of pavement. In the experiment, high-precision pavement texture acquisition equipment was used to extract the three-dimensional texture information of the AC-13 and AC-16 asphalt rutting plate test specimens. Then, the optimal noise reduction smoothing model based on the Ensemble Empirical Mode Decomposition (EEMD) algorithm was used to filter and denoise the three-dimensional texture information of the rutting plate test specimens, and the three-dimensional reconstruction is carried out. Then, the intrinsic mode function IMFs is obtained by means of the Complementary Ensemble Empirical Mode Decomposition (CEEMD) algorithm to decompose two-dimensional texture signals. Meanwhile, the IMF that exhibits the strongest correlation with the original signal is chosen for application of the Hilbert Transformation, which facilitates the extraction of instantaneous frequency and amplitude. At last, is introduced as an index to assess the anti-sliding performance. The experimental results show that the correlation coefficients of and pavement friction coefficient is above 0.8. can be used to good characterize the skid-resistance performance of the pavement.

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  • 收稿日期:2020-07-24
  • 最后修改日期:2024-12-15
  • 录用日期:2021-03-05
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