VEqMon2D—Equations of motion generation tool of 2D vehicles with Matlab

Abstract

The tool VEqMon2D provides a framework to generate analytical expressions of equations of motion of 2D vehicle models in Matlab. Such vehicle models are mostly used in studies that focus on the infrastructure (pavement, railway tracks, bridges) and are loaded by traversing traffic. The main outcome of the tool is a Matlab function that provides the analytical expressions of the equations of motion in matrix form. The user has the flexibility to define a model with multiple bodies, articulations, and axle configurations. Subsequently, the user can use the generated function to calculate the system matrices of the vehicle model for particular values of geometric and mechanical properties. This document describes the various components and modelling possibilities available in VEqMon2D and describes the relevant model parameters and degrees of freedom associated to the vehicle model. It also includes illustrative examples of the use of the tool together with the validation of the tool.