摘要
路面不平度是车辆行驶中振动的重要激励,因而路面模型的建立对车辆动态仿真有着非常重要的意义。本文提出了一种用蒙特卡罗法对路面不平度函数进行抽样的方法,只对相位随机抽样。并对结果进行了统计检验,得到的样本统计谱密度与理论谱密度进行对比分析,结果说明这是一种简单、可靠、行之有效的方法。
Road is the key factor which causes vehicle vibration, so simulating road surface irregularity is the most important in vehicle dynamic simulation. In this paper, the Monte Carlo method which only samples the phase is used to produce road surface irregularity. And as a result of statistics and FFT, the PSD (power spectrum density) of the samples is obtained. Compared to the original PSD, it proves that the method is sample, reliable and effective.
出处
《装甲兵工程学院学报》
1999年第3期47-49,55,共4页
Journal of Academy of Armored Force Engineering
