摘要
对GB/T 7031-2005中提出的路面功率谱密度表达式及等分方法,应用谐波叠加法对路面不平度随机序列进行仿真,使用AR模型谱估计法验证仿真结果。结果表明通过谐波叠加法能很好地拟合路面不平度,且AR模型谱估计具有拟合结果平滑且精度高的特点。
For the expression of the road power spectrum and classification proposed in GB7031,the road roughness was simulated through Partial Wave Adding Model,and the simulation results were verified by the AR model of the modem spectrum estimation. The result showed that the road roughness imitated by Partial Wave Adding Model.The modem spectrum estimation of AR model had smooth results and high accuracy.
出处
《汽车科技》
2009年第4期55-58,共4页
Auto Sci-Tech
基金
国家高技术研究发展计划项目(2006AA110116-02)
关键词
路面不平度
现代谱估计
谐波叠加法
road roughness
modem spectrum estimation
partial wave adding model
