Vibrations of a Non Jeffcott Rotor with One Non Linear Bearing
Magnetic bearings support a body by mechanical pulling forces without any mechanical contact. They consist of an electromagnetic actuator, position sensors, power amplifiers and feedback controller. All of these components are characterized by nonlinear behavior and hence the entire system is inherently nonlinear. This paper presents a mathematical model for the vibrations of a non-Jeffcott type rotor supported on a non-linear bearing. The model can be used as a reference for systems supported on nonlinear bearings like magnetic bearings.
A. Vardhan, "Vibrations of a Non Jeffcott Rotor with One Non Linear Bearing", Applied Mechanics and Materials, Vol. 232, pp. 450-455, 2012