A study on 3D modeling and analysis of uneven road based on geometric features

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Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (16) : 188-195.

LIU Zongkai1,2,YANG Xiaoqiang1,HAN Jinhua3

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Abstract

Based on the analysis of geometric features, distribution characteristics and constraints of the Belgian Road, a three dimensional (3D) parametric pavement modeling method based on geometric features was proposed.The 3D model of the Belgian Road was obtained by fusing the 3D theoretical model of the Belgian Road with the generated 3D random road.Then based on the establishment of the standard vehicle vibration model, the influences of the key geometric parameters of the Belgian Road on vehicle vibration were analyzed by using the evaluation indices of the IRI and the RMS value of the vibration acceleration of the vehicle body.The accuracy of the model was verified by comparing the measured road data with the established model.The proposed method can be extended to the 3D modeling of almost all uneven strengthened test pavements such as Cobblestone Tracks, Fish-scale Pit Road, Ripple Tracks, Washboards, etc.and provides a 3D road modeling method with adjustable parameters, authenticity and accuracy for the comprehensive construction of vehicle virtual test fields.

Key words

road reconstruction / road roughness / non-Gaussian / geometric features / 3D modeling

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LIU Zongkai1,2,YANG Xiaoqiang1,HAN Jinhua3. A study on 3D modeling and analysis of uneven road based on geometric features[J]. Journal of Vibration and Shock, 2020, 39(16): 188-195

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