The dynamic behaviour of liquid in a flexible hose is difficult to model because of complex interactions between the liquid and the hose wall. This results in two sets of coupled axial waves in the liquid and in the wall travelling at two different wavespeeds. A method for time domain modelling is described which represents wave propagation at the two different wavespeeds, including viscoelastic damping. Good agreement between model and measurement is obtained. Simple corrections are included for low-frequency and static effects including viscoelastic relaxation and non-linearities.
|Number of pages||14|
|Journal||Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering|
|Publication status||Published - 2006|