Rudolf Scheidl, Bernhard Manhartsgruber, Helmut Kogler,
"Mixed time-frequency domain simulation of a hydraulic inductance pipe with a check valve"
, in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering S., Vol. 225, Nummer 10, Seite(n) 2413-2421, 10-2011, ISSN: 2041-2983
Mixed time-frequency domain simulation of a hydraulic inductance pipe with a check valve
Sprache des Titels:
This paper deals with the efficient computation of hydraulic switching systems with a check valve by a
mixed time-frequency domain method; frequency domain modelling concerns wave propagation in a
pipe, time domain modelling is applied to the switching valve and the check valve. The dual property of
the check valve makes the complete problem to have variational inequality properties. A solution method
is presented which replaces the pressure and the flow rate of the check valve as a function of one new
variable. The resulting system of nonlinear algebraic equations is solved by a Newton method in
combination with a smoothing of the non smooth properties of the check valve. The method is applied to
a parameter study of a hydraulic buck converter.
Sprache der Kurzfassung:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering S.