Model of object non-destructive technology of road surfaces compaction control

Abstract

The results of research on the development of a mathematical model of the object of non-destructive technology for continuous monitoring of compaction of road construction materials are considered. The dynamic model is based on the process of compacting the material with a double drum vibratory road roller, as an element of a cyberphysical road construction system. The main stages of constructing a mathematical model using the state variables method are presented. The state variables are vertical displacement and velocity of the rollers, vertical displacement, velocity and angular displacement of the roller frame. The results of developing a simulation model of a dynamic system implemented in the language of the Simulink program based on a model-oriented approach are presented. Output signals of the dynamic model – displacement, velocity, speeding-up, contact force of the roller drums. A mathematical model of a viscoelastic body is used to describe the dynamics of the compacted material. The results of modelling a numerical example of the dynamical system under study are considered.