汽车科技
汽車科技
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QICHE KEJI
2009年
4期
55-58
,共4页
聂彦鑫%李孟良%过学迅%杨波
聶彥鑫%李孟良%過學迅%楊波
섭언흠%리맹량%과학신%양파
路面不平度%现代谱估计%谐波叠加法
路麵不平度%現代譜估計%諧波疊加法
로면불평도%현대보고계%해파첩가법
road roughness%modern spectrum estimation%partial wave adding model
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.
對GB/T 7031-2005中提齣的路麵功率譜密度錶達式及等分方法,應用諧波疊加法對路麵不平度隨機序列進行倣真,使用AR模型譜估計法驗證倣真結果.結果錶明通過諧波疊加法能很好地擬閤路麵不平度,且AR模型譜估計具有擬閤結果平滑且精度高的特點.
대GB/T 7031-2005중제출적로면공솔보밀도표체식급등분방법,응용해파첩가법대로면불평도수궤서렬진행방진,사용AR모형보고계법험증방진결과.결과표명통과해파첩가법능흔호지의합로면불평도,차AR모형보고계구유의합결과평활차정도고적특점.
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 modern spectrum estimation. The result showed that the mad roughness imitated by Partial Wave Adding Model.The modern spec-trum estimation of AR model had smooth results and high accuracy.
