Abstract
A basic method for the time domainsimulation of fluid transmissionlines is introduced in this paper.First of all, accurate approximationare made for propagation operatorr and characteristic impedanceZc in the distributed parametermodel of the lines. Then, the methodof Fast Inversion Laplace Transformis applied to deal with the inversionLaplace transform of the modelwhere propagation operator and characteristicimpedance are replacedby their accurate approximations. Inaddition, by means of the method andcharacteristics method a set ofrational polynomial approximationsobtained in previous papers is confirmedin time domain for sevenunique transfer matrix elements inthe distributed parameter model. Theresearch is meaningful for simulationof hydraulic systems and fluidmeasurement using the dynamic modelof fluid transmission lines.
