Every rotating machine has at least one shaft and supporting bearings. Bearings are classified:
(1) Rolling Element Bearings (Shaft and bearing have contact surfaces) such as ball bearing,
(2) Fluid Film Bearings (Shaft and bearing are separated with lubricants) such as oil bearings,
gas bearings, porous bearings, tilting-pad bearings and foil bearings.
Basic Bearing Design:
Class (1) ----------Load capacity, Stiffness (Damping is insignificant)
Class (2)-----------Load capacity, Stiffness, Damping and Stability.
Basic Rotor-Bearing Dynamic Design:
Prediction/Calculation of Critical Speeds (Undamped and Damped), Synchronous and
Asynchronous Reponses, and Rotor Stability Analysis.
Probabilistic Rotor System Design:
Apply probability concepts to design rotor-bearing system to avoid vibration.
Mega Research has created a BEARING Library capable of performing Basic Bearing
Design (Class 1 and 2) for Fifteen (15) popular bearings.
- Tilting-Pad Bearing
- Thrust Bearing
- Rolling Element Bearing
- Porous (Ceramic Coating) Bearing
- Air/Gas Bearing
- Liquid-Film Bearing
- Calculations of Load Capacity
- Attitude Angle
- Flow Rate
- Stiffness & Damping depending on Rotor Speed and Load
- probabilistic bearing design
Rotor-Bearing Dynamic System Analysis:
- Rotor Critical Speed
- Unbalanced Response
- Asynchronous Response due to Forcing Function
- Rotor Stability
- Reliability for Bearing-Rotor dynamic system
- Rotor interfacing with Probabilistic Software