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Measurement of positive displacement pump flow ripple and impedance


Reference:

Johnston, D. N. and Drew, J. E., 1996. Measurement of positive displacement pump flow ripple and impedance. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 210 (1), pp. 65-74.

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Abstract

The secondary source method forms the British Standard for pump fluid-borne noise testing. This is a powerful technique but requires care in order to produce accurate results. This paper describes practical aspects for implementing the method. The requirements for the test rig, data acquisition system and analysis are detailed. The British Standard specifies that either mathematical modelling or linear interpolation is used on the source impedance measurements. A method for smoothing the impedance results is described in this paper, which is shown to give more repeatable results than linear interpolation. Some physically realistic mathematical models of pump impedance are described, and their use in determining the internal flow ripple discussed.

Details

Item Type Articles
CreatorsJohnston, D. N.and Drew, J. E.
DOI10.1243/PIME_PROC_1996_210_437_02
Related URLs
URLURL Type
http://pii.sagepub.com/content/210/1/65Publisher
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
RefereedYes
StatusPublished
ID Code13769

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