SOUZA, L. S. V.; http://lattes.cnpq.br/4136324807595494; SOUZA, Lúcio Stefano Valença.
Resumo:
This paper aims at presenting a study about the vehicular suspension vibratory
dynamic behavior of a "minibaja" the one that has been deigned transit in any land and
weather conditions. As for the analyses, two mathematical models are made for the
suspension: the first one with a freedom degree with a vehicle in motion on a road profile
under a cosine behavior, whereas the second one with three freedom degree with a motionless
vehicle. Such systems are simulated under a digital process, which creates an excitation
signal, the ones which may be applied to mathematical model. The results found during the
former situation points out an increasing in the road wavelength, hence a trailer vertical
dislocation decreasing. However, with the velocity increasing the trailer vertical acceleration
as well as the vehicle transmitted forces are decreased. Thus, the motionless vehicle figures
out three vibration ways: one in the vertical direction, other in the longitudinal direction and
another in the transversal one. Here, it could be observed that there is greater vibration
intensity in the vertical direction, that is to say, in the up and down directions.