Design of Retracting Wheel Mechanism for Amphibious Vehicle and Motion Analysis

Abstract

This paper mainly addresses design of retracting mechanism based on amphibious vehicle's low speed and strong resistance in water. Through analyzing problems faced in the design of amphibious vehicle, one kind of retracting mechanism based on double-wishbone independent suspension is proposed. The equations of key-points at suspension guiding mechanism are obtained, and the relationship between the length of hydraulic stick retracted and the height of wheel lifted are also calculated. Finally, a specific 3D model is built, and wheel alignment is determined, therefore a real mechanism is assembled to illustrate the retracting mechanism.