It is demonstrated that measured relationships between the vibration and pressure fluctuation at the input and output ends of hydraulic hoses, such as would be generated by a pump and transmitted to the subsequent circuit, can be described satisfactorily by two types of wave involving differing proportions of predominantly axial motion of the hose and the contained fluid, together with bending and torsional wave motion. The values of the wave properties required to do this are presented for four representative hose constructions, and the relationship of the properties to the construction is discussed.
Get full access to this article
View all access options for this article.
References
1.
BertC. W.ChenT. L. C.Wave propagation in fluid- conveying piping constructed of composite material. Trans ASME, Series J, 1975, 97, 178–184.
2.
LongmoreD. K.The transmission and attenuation of fluid borne noise in hydraulic hose. Seminar on Quiet oil hydraulic systems, London, 1977, paper C267/77, pp. 127–137 (Institution of Mechanical Engineers).
3.
LongmoreD. K.TucB.Reduction of fluid borne noise in hydraulic circuits by means of flexible hoses. Seminar on Quieter oil hydraulics, London, 1980, paper C380/80, pp. 55–61 (Institution of Mechanical Engineers).
4.
LongmoreD. K.StammersC. W.TucB.Measurement of the longitudinal wave propagation properties of reinforced flexible hose. Institute of Acoustics Spring Conference, Newcastle, 1981.
5.
TucB.The use of flexible hoses for reducing pressure ripple in hydraulic systems. PhD thesis, University of Bath, 1981.
6.
EdgeK. A.TilleyD. G.The use of plane wave theory in the modelling of pressure ripples in hydraulic systems. Trans. Inst. Measmt Contr., 1983, 5(4), 171–178.
7.
BarkerN. I.MinchinP. A.Measurement of the wave properties of hydraulic hoses using axial impulses. Project report, University of Bath, 1985.
8.
LongmoreD. K.StammersC. W.Combined longitudinal and lateral vibration of a curved reinforced hose containing fluid. International Conference on Recent advances in structural dynamics, Southampton, 1980, pp. 521–532 (Institute of Sound and Vibration Research).
