重庆理工大学学报2025，Vol.39Issue(15)：44-51,8.DOI:10.3969/j.issn.1674-8425(z).2025.08.006
基波递进加载的双轮辙路面不平度通用建模方法
Modeling of pavement roughness with double-wheel ruts based on the progressive loading method of fundamental waves
摘要
Abstract
To accurately model double-wheel ruts road surface irregularities based on known road surface data,a generalized modeling method using fundamental wave progression loading is proposed.The square root of the product of the target power spectral density and the discrete bandwidth,as well as the square root of the coherence function between the left and right wheel ruts,are employed as fundamental wave signals.These fundamental wave signals are progressively loaded onto three independent white-noise standard carriers to generate three mutually independent modulated waves.The modulated waves are then superimposed in a specific manner to obtain the double-wheel ruts road surface irregularities.To further improve modeling accuracy,the upper limit of the reconstructed spatial frequency range of the road surface roughness is extended to 10 m-1,ensuring the inverse of the discrete frequency band interval bandwidth exceeds the length of the modeled road surface irregularities.After theoretical validation,the method is applied to modeling with specified data and is rebuilt by employing measured road surface data.Results show the power spectral density and coherence function of both modeled and reconstructed road surface irregularities closely match the target values,validating the effectiveness of the fundamental wave progressive loading approach in accurate road surface irregularities modeling.关键词
汽车工程/路面不平度/载波调制/空间频率/相干与非相干函数Key words
automotive engineering/road roughness/carrier modulation/spatial frequency/coherent and incoherent functions分类
交通工程引用本文复制引用
陈士安,魏善门,张良城,吴俊杰,王骏骋..基波递进加载的双轮辙路面不平度通用建模方法[J].重庆理工大学学报,2025,39(15):44-51,8.基金项目
国家自然科学基金项目(52072158 （）
52205135) （）
