路面不平度的数学模型及计算机模拟研究

Mathematical model of road roughness in time domain and its simulation

提出了一种一维路面不平度数学模型 ,即 ARMA模型 ,统一地描述了复杂而且不规则的路面起伏形状 ;运用该模型进行了计算机数值模拟 ,对国标 GB70 31— 86《车辆振动输入路面平度表示方法》中规定的路面不平度模拟结果表明 ,该模型的模拟精度好 ,运算效率高。

A new mathematical model of road roughness, namely ARMA model, is proposed and studied in detail. Based on this new model, computer simulation of the road roughness in time domain is also studied, and the simulation results show that the model is a high accuracy and high efficient model.