基于谐波叠加法的标准路面谱重构  

Reconstruction of the Standard Road Surface Spectrum Based on Harmony Superposition Method

作　　者：郑海腾[1] 李尚平[1,2] 李冰[1] 汤毓 

机构地区：[1]广西科技大学,广西柳州545006 [2]广西民族大学,广西南宁530006

出　　处：《机械研究与应用》2014年第6期82-83,86,共3页Mechanical Research & Application

基　　金：广西科学研究与技术开发计划项目(编号:10100026);广西车辆零部件先进设计制造重点实验室培育基地开放基金项目(编号:2012KFZD02);新世纪广西高等教育改革工程立项项目(编号:2011JGA082)

摘　　要：汽车的关键零部件的疲劳可靠性分析在产品研发过程中有重要价值,而标准路面谱的重构是首要解决的问题。根据在谐波叠加法原理的功率谱密度并利用概率统计理论、中心极限定理,建立了路面谱的数学模型。并依托该数学模型设计并开发了标准路面谱重构程序和软件最后软件重构的时域路面谱位移输入特性能很好的逼近标准路面谱,重构的路面谱满足要求。The fatigue reliability analysis of the key parts and components is very significant in the product development process,and reconstruction of the standard road surface spectrum is the primary problem. According to the foundation in the power spectral density on the principle of superposition of harmonic,a mathematical model of road surface spectrum is established by using the probability and statistics theory and the central limit theorem. Relying on this mathematical model,reconstruction program and software of the standard road surface spectrum are designed and developed,and the time-domain spectral shift input features of the reconstructed road surface spectrum could be approximate to the standard road surface spectrum,and the reconstructed spectrum of road surface roughness is able to meet the requirements.

关 键 词：谐波叠加法 路面谱 软件开发 

分 类 号：TH12[机械工程—机械设计及理论] TP391.9[自动化与计算机技术—计算机应用技术]