Bernhard Manhartsgruber, Gerald Riha, Rudolf Scheidl,
"Modern Hydrostatic Drive Systems in the Light of Dynamical Systems Theory"
, in J.Awrejcewicz and J. Grabski and J. Mrozowski: Proc. 4th Conference on Dynamical Systems Theory and Applications, Lodz, 8-9 Dec. 1997, Seite(n) 25-44, 12-1997, ISBN: 83-87202-80-0
Modern Hydrostatic Drive Systems in the Light of Dynamical Systems Theory
Sprache des Titels:
Proc. 4th Conference on Dynamical Systems Theory and Applications, Lodz, 8-9 Dec. 1997
Dynamic effects in hydrsostatic drives are strongly related to the compressibility of the hydraulic fluid. In a proper nondimensional scaling of the state equations the small compressibility parameter leads to singularly perturbed differential equations. For the hydraulic servo-drive this singular perturbed system is investigated by means of a center-manifold approach. The reduced problem exhibits discontinuities when the servo-valve passes through its zero state. These discontinuities cause transition layers for the pertubed problem. For the resonance converter singular perturbation methods are used to obtain insight inti critical processes which strongly affect the performance characteristics.