国际平整度指数与路面波长及波幅数值计算分析

Numerical Calculation of the Relationship between International Roughness Index and Pavement Wavelength and Wave Amplitude

在四分之一车辆模型国际平整度指数的理论推导下,用MATLAB编制了国际平整度指数数值计算程序,对不同波长及波幅的路面变形进行了大量计算,得到相应的国际平整度指数值。从数值上建立了不同波长与波幅对应下的国际平整度关系表。

In this paper, based on theoretical analyses of the quarter car model of International Roughness Index （IRI）, the numerical calculation code of IRI is composed with MALAB. With large quantity calculation of the pavement wavelength and wave amplitude, IRI of pavement wave is obtained. The relationship chart between IRI and pavement wavelength and wave amplitude is established.