基于快速傅里叶逆变换的路面平整度仿真分析

Simulation Analysis of Pavement Evenness Based on Inverse Fast Fourier Transform

介绍了路面平整度功率谱密度的计算原理,利用路面平整度功率谱密度和平整度之间的关系,采用快速傅里叶逆变换求解路面平整度,对不同平整度等级的道路进行仿真分析。仿真计算结果为路面动荷载的计算和道路安全的分析提供了理论基础。

Pavement evenness power spectral density theory is introduced systematically. The relationship between pavement power spectral density and evenness is used and Inverse Fast Fourier Transform is employed to simulate evenness of different class road. The simulation result will supply a theoretical basis for calculation of moving loading and analysis of road safety.