TRACKED VEHICLE PERFORMANCE ON IRREGULAR GROUND WITH PNEUMATIC SUSPENSIONS 2021-36-0089

In a military vehicle, the decrease in pitch and bounce movements is important to achieve precision in the vehicle's weapon set. The suspension of the vehicle is responsible for filtering the terrain profile, increase the comfort of the occupants, and reduce the impacts on the vehicle components. This paper will continue the work published on "PERFORMANCE OF A VEHICLE ON CRAWLES ON IRREGULAR LAND WITH SUSPENSIONS EQUIPPED WITH MAGNETORREOLOGICAL SHOCK ABSORBERS" (2020-36-0145) analyzing the improvement in vehicle performance when implementing pneumatic springs in the suspension system. The vehicle selected is the APC M113 because it is a versatile vehicle, used by several countries, and for that reason, it is possible to obtain parameters more easily than other military vehicles. The vehicle will be analyzed in a MATLAB / Simulink environment, under two terrain configurations: a single speed bump and a series of 5-speed bumps.