ABSTRACT
A snow vehicle is modelized as a system of rigid bodies and the equations of motion are obtained within the framework of the differential algebraic equations formalism, and also, through the Kane dynamic formalism. Problems arising from the ski or track contact constraints with a given hard rigid profile are discussed. A constitutive model for snow compaction is assumed and external forces and moments, that condition the dynamic of this type of vehicle, are evaluated. A pilot, modelized by a four-bar mechanism and a viscoelastic seat is added to the system and simulations are reported, revealing some of the important characteristics of this type of vehicle. The role of the animation is also stressed for the purpose of vehicle design.
