Abstract
The development of electric vehicle manufacturing, which is considered a useful new popular propulsion system, has major design differences compared to conventional vehicles. This requires a reconsideration of the main components of vehicles and an analysis of them to determine the optimal design and solutions for the new models of cars. Among the many systems that need to be reconsidered is the suspension. A cheaper solution for reducing the car’s vibrations is suspension where the damping is ensured by elastic rubber elements, which are very simple, as they have significant structural damping and a much lower price than the classic solution. The main advantage of this solution is the simplicity. The paper presents and analyzes such an element, analyzing the vibrations of this element and the way in which inertial masses (metal spheres) inserted into the volume of the rubber influence the behavior of this element. The transmissibility of such an element, and how the number of balls and the level of structural damping influences this property, is also analyzed. The results suggest possible applications in the automotive industry.
Highlights
A cheaper solution for reducing the car’s vibrations is suspension where the damping is ensured by elastic rubber elements, which are very simple, as they have significant structural damping and a much lower price than the classic solution
The results suggest possible applications in the automotive industry
We aim to study how suspension with rubber elements can be used to dampen the vibrations generated by the road, in the case of an electric vehicle
Summary
The solution proposed for the use of inertial dampers ensures, through the correct structural design and dimensioning, the dissipation of the mechanical energy generated by the sources of vibrations or noise. The idea of using such dampers is not new, but the application in the automotive industry is not very common This type of shock absorbers, as a result of the stability of the higher dissipative power (mainly due to the distributed system that allows high-energy absorption), ensures good performance in operations and a low manufacturing price. The paper tried to eliminate the ecologically unfriendly aromatic compounds and suggested a new type of compound which has the same properties, but at a lower cost This new material that was proposed and studied can be used in automotive engineering, and the aircraft industry, for an effective vibration isolation. The results offer arguments for using this type of damper in the manufacturing of the electrical vehicle The behavior of such a shock absorber is studied in a static case, and the vibrations of such a damper are determined
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