Affiliation:
1. School of Engineering, University of Bath
Abstract
This paper discusses the application of plane wave theory to the modelling of pressure ripples generated by positive displacement pumps in high-pressure hydraulic systems. These ripples can lead to structural vibration of pipework and associated components and hence result in airborne noise. A clear understanding of the mechanism of pressure ripple generation is essential in the development of quiet systems. The characteristics of the pump and the circuit components have a considerable influence on the amplitude of the pressure fluctuations. Methods of evaluating these characteristics are described and typical results presented. It is shown that, from a knowledge of these characteristics, the pressure ripple levels at any position in a circuit may be accurately determined using plane wave theory.
Cited by
9 articles.
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1. Acoustics interaction in a complex piping network with multiple pulsatile sources;Journal of Sound and Vibration;2022-06
2. Flow characteristics of a trochoidal-gear pump using bond graphs and experimental measurement. Part 2;Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering;2007-05-01
3. Flow characteristics of a trochoidal-gear pump using bond graphs and experimental measurement. Part 1;Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering;2007-05-01
4. Pressure pulsations in reciprocating pump piping systems Part 2: Experimental investigations and model validation;Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering;1997-05-01
5. In-Situ Measurement of the Wavespeed and Bulk Modulus in Hydraulic Lines;Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering;1991-08