APPLICATION OF THE NEWMARK INTEGRATION METHOD TO DETERMINE THE DYNAMIC RESPONSE OF A COMPLETE VEHICLE MODEL SUBJECTED TO THE EXCITATION OF A RANDOM ROAD PROFILE ACCORDING TO ISO 8608

Resumo

When analyzing a vehicle traveling on a lane, irregularities in this lane can expose the driver to
vibrations that can result in health damage. This implies the need for a suitable suspension system. This study is
justified by the fact that the determination of the dynamic response of vehicles traveling on irregular lanes allows
us to understand the behavior of the vehicle in terms of displacement, velocity and acceleration as a function of
time. The general objective of this study is to determine the dynamic response of a complete vehicle model
subjected to the excitation of a random road profile, according to the ISO 8608. The specific objectives are: (I) To
reproduce a vehicle model; (II) Determine a random road profile; (III) Apply the Newmark method. The
methodology of this study consists of simulating the vehicle in Matlab software and validating this model. Apply
the random road profile as road excitation. Determine the dynamic response using the Newmark Method. As a
result, the dynamic response of the vehicle subjected to the excitation of a random road profile was obtained. It is
concluded that it was possible to complete the specific objectives, reaching the general objective.