The method of finding the center of mass of the means of individual mobility

Abstract

This article presents a methodology for finding the center of mass of individual mobility aids (SIM) to improve the sustainability of this type of means in the future. Three methods of finding the center of mass for an electric scooter were presented: the area method, the weighing method, and the 3D-modeling method. In addition to electric scooters and other SIM devices, this technique is also suitable for finding the centers of mass of most single-track vehicles. The popular private folding electric scooter KuGoo S3 was used as a test object, which has an average frame design, soundboard, braking mechanisms, drive type and weight. During the work, the full-scale dimensions of the electric scooter were taken and a 3D-model was created in a CAD program with an imitation of a real SIM, in addition, full-scale tests were carried out using the second method of finding the center of mass in order to find and compare the relative and absolute errors in calculations and comparing different methods. To create a digital twin, the popular SolidWorks 2023 CAD system was used with pre-installed tools for finding the center of mass of both an individual object and a complete assembly, each individual element has its own mass and its own material.