Transmission Line Modelling Using Variational Method
Tampere University of Technology
Tampere University of Technology Mathematics Report 72, 25pp.
The modal method for time-domain modelling of
pressure transients in fluid transmission lines
is shown to be equivalent to a variational method.
Attenuation factors, similar to the "windows" used in spectral analysis,
are used to attenuate Gibbs phenomenon oscillations.
Explicit formulas are given for various end conditions.
The method is also applied to nonlinear damping models.
Zipped Postscript file (189K)