Measurement of the Longitudinal Wave Propagation Properties of Reinforced Flexible Hose

IntruiuctionNoise in hydraulic systems has in recent years been acknowledged to be a serious problem.The lower harmonics of the pressure fluctuation produced by a pump can excite pronounced resonances of the fluid columns within a system, resulting in high airborne sound levels.A theoretical study of the dynamic pressures in a circuit requires a knowledge of the relevant characteristics of the various components. .Pump, pipeline and valveJCharacteristics can beThe aim of the work outlined herein is to provide a convenient method of measuring thewave properties of reinforced flexible hoses, which commonly form part of a circuit.