Open AccessModeling of Flexible Rotor Machines Supported With Hydrostatic Bearings
Author(s) -
R.N. Headifen,
W.F. Weldon
Publication year - 1993
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/93-gt-031
Subject(s) - bearing (navigation) , hydrostatic equilibrium , finite element method , rotor (electric) , nonlinear system , stiffness , eigenvalues and eigenvectors , control theory (sociology) , transient (computer programming) , newton's method , computer science , engineering , control engineering , mechanical engineering , structural engineering , physics , operating system , quantum mechanics , artificial intelligence , control (management)
In this paper a method is described that takes the nonlinear dynamic stiffness and damping coefficients for multiple hydrostatic bearings and incorporates them into a rotordynamic FEM model for a rotating machine. A Newton-Raphson iteration scheme is presented that uses updated bearing coefficients at every iteration to the solution. A non-linear computer program was written using the method described which models transient and synchronous response and calculates damped eigenvalues.Copyright © 1993 by ASME
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