Study on the Frequency Response Function of ...


This research focuses on the study of the frequency response function (FRF) of viscoelastic pipelines. The transfer matrix of a uniform viscoelastic pipeline is derived using the generalized multi-element Kevin-Voigt (K-V) model. The analytical expressions of the characteristic impedance and propagation operator are presented. The frequency response diagrams (FRDs) of a viscoelastic pipeline, with or without unsteady friction, are obtained numerically and compared with the FRDs of an elastic pipeline, with or without unsteady friction. It is verified that the pipe wall viscoelasticity introduces not only frequency-dependent shifting of the resonant frequencies but also frequency-dependent damping of the resonant peaks.

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Field Value
Last updated June 16, 2016
Created June 16, 2016
Format PDF
License Creative Commons Attribution
created over 4 years ago
format PDF
id ca0fac68-3936-44af-affd-b4f0c961ac2b
openAccess false
package id b0b32b0f-aa1a-43fe-9de8-0d6fcc872fb8
position 50
revision id f0a5a351-7af0-466a-aa97-47988e9757d6
state active
tags frequency domain,numerical simulation,plastic,transient,transfer matrix,water hammer,frequency domain,numerical simulation,plastic,transient,transfer matrix,water hammer
topic Water supply and distribution
type Conference Paper
year 2,015