Development and verification of a 9-DOF armored vehicle model in the lateral and longitudinal directions

Abstract

This manuscript presents the development of an armored vehicle model in lateral and longitudinal directions. A Nine Degree of Freedom (9-DOF) armored vehicle model was derived mathematically and integrated with an analytical tire dynamics known as Pacejka Magic Tire model. The armored vehicle model is developed using three main inputs of a vehicle system which are Pitman arm steering system, Powertrain system and also hydraulic assisted brake system. Several testings in lateral and longitudinal direction are performed such as double lane change, slalom, step steer and sudden acceleration and sudden braking to verify the vehicle model. The armored vehicle model is verified using validated software, CarSim, using HMMWV vehicle model as a benchmark. The verification responses show that the developed armored vehicle model can be used for both lateral and longitudinal direction analysis.