Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation

A stainless-steel cantilever multistage centrifugal pump was taken to study the transient response characteristic. The axial locus under different working conditions was tested experimentally and compared in detail. The results show that the gyroscopic effect increases the radial displacement locate...

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Main Authors: Jiang Xiaoping, Wang Li, Zhou Ling, Li Wei, Wang Chuan
Format: Article
Language:English
Published: SAGE Publishing 2020-12-01
Series:Journal of Low Frequency Noise, Vibration and Active Control
Online Access:https://doi.org/10.1177/1461348419872312
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author Jiang Xiaoping
Wang Li
Zhou Ling
Li Wei
Wang Chuan
author_facet Jiang Xiaoping
Wang Li
Zhou Ling
Li Wei
Wang Chuan
author_sort Jiang Xiaoping
collection DOAJ
description A stainless-steel cantilever multistage centrifugal pump was taken to study the transient response characteristic. The axial locus under different working conditions was tested experimentally and compared in detail. The results show that the gyroscopic effect increases the radial displacement located near the end element, and the amplitude of the radial displacement of the pump body increases with the development of unbalance mass. The dynamic sealing force of wear-ring could enhance the stability of the rotor system, and effectively reduce the amplitude of the radial displacement. The axis locus under variable flow rates is different when the fluid excitation was loaded. The increasing tendency of the maximal radial displacement appears exponential with the enhancement of fluid added mass when heterogeneous fluid added mass is taken into consideration. The experimental results exhibit that the axis locus is various under different working conditions, and there exists misalignment and eccentricity phenomenon in the multi-stage pump rotor system.
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spelling doaj.art-20c9ddcd919e4afc96cdc81bb08fc7032022-12-21T17:01:06ZengSAGE PublishingJournal of Low Frequency Noise, Vibration and Active Control1461-34842048-40462020-12-013910.1177/1461348419872312Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitationJiang XiaopingWang LiZhou LingLi WeiWang ChuanA stainless-steel cantilever multistage centrifugal pump was taken to study the transient response characteristic. The axial locus under different working conditions was tested experimentally and compared in detail. The results show that the gyroscopic effect increases the radial displacement located near the end element, and the amplitude of the radial displacement of the pump body increases with the development of unbalance mass. The dynamic sealing force of wear-ring could enhance the stability of the rotor system, and effectively reduce the amplitude of the radial displacement. The axis locus under variable flow rates is different when the fluid excitation was loaded. The increasing tendency of the maximal radial displacement appears exponential with the enhancement of fluid added mass when heterogeneous fluid added mass is taken into consideration. The experimental results exhibit that the axis locus is various under different working conditions, and there exists misalignment and eccentricity phenomenon in the multi-stage pump rotor system.https://doi.org/10.1177/1461348419872312
spellingShingle Jiang Xiaoping
Wang Li
Zhou Ling
Li Wei
Wang Chuan
Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
Journal of Low Frequency Noise, Vibration and Active Control
title Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
title_full Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
title_fullStr Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
title_full_unstemmed Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
title_short Transient response analysis of cantilever multistage centrifugal pump based on multi-source excitation
title_sort transient response analysis of cantilever multistage centrifugal pump based on multi source excitation
url https://doi.org/10.1177/1461348419872312
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AT wangli transientresponseanalysisofcantilevermultistagecentrifugalpumpbasedonmultisourceexcitation
AT zhouling transientresponseanalysisofcantilevermultistagecentrifugalpumpbasedonmultisourceexcitation
AT liwei transientresponseanalysisofcantilevermultistagecentrifugalpumpbasedonmultisourceexcitation
AT wangchuan transientresponseanalysisofcantilevermultistagecentrifugalpumpbasedonmultisourceexcitation