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在现有的公路路面不平度研究方法的基础上,采用一种数值模拟的方法来得到路面不平度及其功率谱密度数据。该方法运用FOURIER变换原理和信号采样定理对数据进行分析,结合车辆振动响应频率和车速后,对B、D和F三个等级路面进行仿真,并将所得功率谱密度与标准路面功率谱密度进行对比。
Based on the existing research methods of road surface roughness, a numerical simulation method is used to get the roughness of road surface and its power spectral density data. The method uses FOURIER transformation principle and signal sampling theorem to analyze the data. Combining the vibration response frequency and vehicle speed of the vehicle, the three grades B, D and F are simulated, and the power spectral density obtained is compared with the standard pavement power spectral density Compared.