SEMI-ACTIVE CONTROL APPLIED TO EXCESSIVE VIBRATIONS OF AN AUTOMOTIVE SUSPENSION

Abstract

Automobiles are well present in the daily lives of the population, whether for use at work or in leisure activities. Among the various equipment present in a car, the suspension is qualified as one of the most important because, in addition to maintaining the physical integrity of the structure, it assists in the comfort of the passengers. In this sense, the dimensioning of this suspension and the damping effect performed by it must be thoroughly studied, as any error can lead to the appearance of failures and end up leading to financial loss or even endanger human lives. Thus, it was interesting to study the dynamics of a magneto-rheological damper in an automotive suspension model already proposed in the literature, aiming to improve the dynamic performance of the model. In order to carry out this analysis, the Runge Kutta method of the Fourth Order was used aiming at the numerical approximation of both the non-damping system and the already damped model.