基于Fourier逆变换法的路面不平度模拟

Modeling and Simulation of Road Roughness Based on the Method of Reverse Fourier

研究了Fourier逆变换法在路面功率谱已知情况下如何构造路面不平度随机序列的生成算法,为履带式车辆行驶仿真试验提供路面模型.模拟结果表明:利用该方法所得路面不平度,经谱分析得到的路面功率谱与给定的目标功率谱能够较好的符合;用Fourier逆变换法构造路面不平度是可行的.

Using the method of reverse Fourier, the algorithm that how to build up the random sequence of road roughness while obtaining road spectrum was studying. The road model was built and the simulation experiment of road was proceeded, which supplied the experiment platform for the simulation experiment of the tracked vehicle riding. The simulation result indicates that the power spectrum density that was generated in the method of reverse Fourier is same as the given one