【摘要】 本文建立了路面结构的层状粘弹性模型,在对FWD无损检测数值进行动态分析的基础上,采用系统识别方法对路面结构层模量数值进行了动态反分析研究。数值结果表明,反算过程稳定收敛,系统识别方法对于路面结构层模量的动态识别问题是适用的、有效的。更多还原

【Abstract】 A multilayered viscoelastic model of pavement is established. Based on the dynamical analysis of nondestructive FWD data, a system identification method is used to backcalculate the material properties of the media. The forward analysis is done through an analytical method in the frequency domain. Numerical results show that the backcalculation process is stable and convergent. The system identification method is effective and applicable to the dynamic property identification of pavement structures.更多还原