A rotor is never free from vibration owing to constant centrifugal force acting on it while rotating. practical has inherent mass unevenness flaw, or bearing misalignment self-weight bow presence of discontinuity cracks flaw. If the vibrations are not controlled within limits, rotor’s purpose existence lost. These can be synchronous if frequency equal to, multiple of, speed rotation rotor. Or m...

Abstract— The nature of active magnetic bearings has many advantages over the conventional bearing, as its operation is energy efficient and potentially leads to cleaner and noise-free environment. However, the successful operation of an active magnetic bearing system requires a complex real-time control system, because of its unstable characteristics, as well as its nature of being a multi-inp...

Hydrodynamic and aerodynamic lubrication regimes in their controllable forms have been intensively investigated over the last two decades. With the aim of reducing friction and improving thermal, static, and dynamic characteristics of radial sliding bearings, different types of electro-mechanical actuators have been coupled to such bearings. Depending on (i) the actuator type; (ii) the actuatio...