Three-Dimensional Modeling and Analysis of Virtual Test Pavements for Automotive Test Sites

Abstract

The three-dimensional modeling and analysis of virtual pavement are conducted for the complex and diverse test pavements in the vehicle reliability driving test. Firstly, a complete pavement unevenness acquisition system is constructed, and secondly, the classification and processing methods of different pavements are determined according to the actual working conditions and load spectrum data of the test pavement in the test site to provide a theoretical basis for the virtual pavement modeling. At the same time, considering that the test pavement also includes various complex pavement conditions such as curves, slopes and lateral inclination, the structural composition and differences of plane curves, longitudinal ramps and cross-sections are analyzed to provide a guarantee for the further establishment of an accurate 3D pavement model. Finally, the 3D virtual pavement model of typical test pavements is established according to the theory and methods of the above research, and the accuracy of random pavement reconstruction is analyzed, which provides accurate and effective technical support for the simulation of automobile reliability driving tests.