The influence of the load on the behavior of the electromechanical variator

The paper presents the mathematical model of a kinematic axis with a.c. motor drive and servo drive variator. The servo drive variator is composed of a differential mechanism and a friction variator. The influence of the load on the differential mechanism input elements will be analyzed. The mathematical model taking into consideration the shift of the friction variator and the efficiency. Using numerical methods, the differential equation has been solved and as a result, the response of the system for different variation of the load.