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In the last decades, the improvement of the automotive industry and the raising market exigence have stimulated studies in vehicle dynamics. That studies force the companies to focus their efforts in producing new conceptions and optimizing the existing ones, being able to obtain faster, safer, and more comfortable vehicles. The evolution of computing has made the task of making numerical simulations for complex models of vehicles. This allow the engineers to reproduce the real dynamic behavior of the vehicle submitted to a wide range of scenarios. Therefore, this study aims to use the multibody method to model and simulate, through computers, the vertical dynamic behavior of an off-road vehicle (baja) with a Double Wishbone suspension in both front and rear.

The studies in the field of vehicle dynamics have been performed since the beginnings of the automobile industry, however in relation to advancements in embedded technologies for greater security and performance of vehicles in adverse conditions, research on this subject, gained a greater intensity in recent decades. Several research groups have sought to understand and model the real dynamic behavior of vehicles subject to the conditions imposed by the irregularities of the soil, in order to obtain suspensions of innovative concepts for vehicles that have high reliability and dynamic performance car. This paper presents a study for a cinematic concept of independent rear suspension, applied to off-road vehicles (off road). Thus, the analysis was performed using the software MSC Adams car, a type of vehicle suspension traditional double wishbone front with direction of tendency geometry to the oversteer effect and rear suspension arms overlaid with guiding bar.