Dynamics of 3 Points Link Hitch (II)

Position of Hitch Points and Orientation of Hitch Plane

Abstract

Fundamental relationship among the side displacement, yaw angle, roll angle and induced vertical displacement of 3 points link hitch system is derived as functions of length of link members and relative position of hitch points. Depth change and resulted pitch angle variation of plow are also studied.
Lateral deformation of lower links due to side force acting on the plow brings about 7mm/200kg, for an example of Ferguson FE-35 tractor, so the corrections sre needed for geometrically determined position of hitch points. Other corrections due to elastic deformation are negligible.