Simulation of Road Surface Roughness Based on the Piecewise Fractal Function
The fractal interpolation theory was used to the research of road sur-face roughness, and its simulating method was proposed through the piecewise fractal model. The fractal interpolation model was established for the actual road surface roughness, its influential factors and their laws of influencing were also analyzed, and then the model accuracy was confirmed by the fractal parameters and the traditional parameters. The research indicated that the simu-lated parameters of road surface in different resolutions and the traditional parameters can keep better consistency with the actual road surface. The con-traction factor and the road surface sampling resolution are main influential fac-tors of the model. The contraction factors selection decided directly the fractal dimension of the simulated road, and the simulated precision reduced with the decrease of sample resolution at the same time. In fact, this method is able to obtain a better simulation results, as long as the sample resolution was re-strained on the scaleless range of road surface roughness.
Road surface roughness Piecewise Fractal model Contraction factor, Scaleless range.
Zhixiong Lu Lanying Zhao Xiaoqin Li Jun Yuan
Engineering Collage, Nanjing Agricultural University. Nanjing, 210031, Nanjing, Chinese Institute of mechanical engineering, Dalian Ocean University, 116023, Dalian, Chinese
国际会议
南昌
英文
294-305
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）