Experimental identification of bearing force coefficients

Variable Filter method for bearing parameter identification

(Undamped) Modal Analysis of MDOF Systems

Free & Force Vibrations of undamped MDOF systems. Orthogonality properties of natural modes. Rayleigh energy methods. Mode superposition (displacement and acceleration methods

Hydrostatic journal bearings

The mechanism of centering stiffness in seals. Force coefficients for short-length pressure seals. Design of annular seals: swirl brakes, impact on rotordynamics. Hydrostatic bearings in modern applications. The principle of hydrostatic lubrication. Effects of recess volume-fluid compressibility on force coefficients for operation at low and high frequencies. Applications of hydrostatic bearing

Impedance Matching

A short description on what a driver is and what a load is and how to match them. Knowledge that everybody "knows" but no one teaches i

STATIC AND DYNAMIC FORCED PERFORMANCE OF TILTING PAD BEARINGS: ANALYSIS INCLUDING PIVOT STIFFNESS

The fundaments of analysis – Incomplete document. Presentation

SQUEEZE FILM DAMPERS: OPERATION, MODELS AND TECHNICAL ISSUES

Appraisal of the art. Design considerations. Force Coefficients. Lubricant cavitation and air entrainment in SFDs. Response of a Rigid Rotor Supported on open-ended SFDs. (*) Digital video clips showing air entrainment in a SFD available at http://rotorlab.tamu.edu/TRIBGrou

High pressure long oil seals

Floating ring seals for compressors: leakage and force coefficients, seal lock up and effect on rotor stability, recommendations to reduce seal cross-coupled effects. Long oil seals as pressure barriers in industrial mixers: leakage and force coefficients, effect on rotor stability, recommendations for grooved seals with reduced leakage and lesser cross-stiffnesses

Classical Lubrication Theory

Derivation of Reynolds equation for laminar flow bearings. Boundary conditions and types of liquid cavitation

Two pad axially grooved hydrostatic bearing

A hydrostatic bearing having two axial grooves on opposite sides of the bearing for breaking the rotational symmetry in the dynamic force coefficients thus reducing the whirl frequency ratio and increasing the damping and stiffness of the hydrostatic bearing