A NOTE ON CRITICAL-SPEED SOLUTIONS FOR FINITE-ELEMENT-BASED ROTOR MODELS Academic Article uri icon

abstract

  • An ordering scheme is introduced for the deflection variables in finite-element-based rotordynamics models which permits a direct numerical solution approach via symmetric matrix procedures for rotor critical speeds, provided the system stiffness matrix is symmetric. Previously published reports on finite-element formulations employ general Q-R algorithms operating on state-variable forms of the governing equations to obtain rotor natural frequencies at a specified running speed, with critical speeds determined from many such calculations.

published proceedings

  • JOURNAL OF MECHANICAL DESIGN-TRANSACTIONS OF THE ASME

author list (cited authors)

  • CHILDS, D. W., & GRAVISS, K.

citation count

  • 17

complete list of authors

  • CHILDS, DW||GRAVISS, K

publication date

  • April 1982