The equivalent single degree of freedom dynamics model of high-speed cam is established while considering the speed fluctuations of input shaft.The dynamics function and camshaft torque of the force-closed cam and the form-closed cam are deduced respectively while considering the speed fluctuations of input shaft
together with the dynamic curve and camshaft input torque map are made.Base on the study
the dynamics characteristic of the force-closed cam and the form-closed cam are compared and analyzed
which provides a certain theoretical basis for the rational design of high-speed cam.