Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources
In order to study the vibration mechanism of a marine centrifugal pump unit and explore the contribution of vibration caused by different vibration excitation sources, a marine centrifugal pump with a specific speed of 66.7 was used for research. A numerical calculation model of the flow field and e...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-03-01
|
Series: | Journal of Marine Science and Engineering |
Subjects: | |
Online Access: | https://www.mdpi.com/2077-1312/9/3/274 |
id |
doaj-6be87d64eeac434483d06be859df02fe |
---|---|
record_format |
Article |
spelling |
doaj-6be87d64eeac434483d06be859df02fe2021-04-02T20:03:45ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-03-01927427410.3390/jmse9030274Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation SourcesCui Dai0Yuhang Zhang1Qi Pan2Liang Dong3Houlin Liu4School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, ChinaResearch Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, ChinaIn order to study the vibration mechanism of a marine centrifugal pump unit and explore the contribution of vibration caused by different vibration excitation sources, a marine centrifugal pump with a specific speed of 66.7 was used for research. A numerical calculation model of the flow field and electromagnetic field of the pump unit was established to analyze the frequency spectrum characteristics and contribution of pump unit vibration caused by different excitation sources. Using the modal superposition method, the vibration characteristics of the pump unit caused by fluid excitation and electromagnetic excitation were analyzed. The results show that the main frequency of pump unit vibration caused by fluid excitation was at the 1× blade passing frequency. The main frequency of pump unit vibration caused by electromagnetic excitation was at the 2× utility frequency. The contribution of different excitation sources to the vibration of marine centrifugal pump unit was in the following order: fluid excitation on the inner surface of the pump electromagnetic excitation fluid excitation in the impeller.https://www.mdpi.com/2077-1312/9/3/274marine centrifugal pumpvibration excitation sourcefluid excitationelectromagnetic excitationnumerical simulation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cui Dai Yuhang Zhang Qi Pan Liang Dong Houlin Liu |
spellingShingle |
Cui Dai Yuhang Zhang Qi Pan Liang Dong Houlin Liu Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources Journal of Marine Science and Engineering marine centrifugal pump vibration excitation source fluid excitation electromagnetic excitation numerical simulation |
author_facet |
Cui Dai Yuhang Zhang Qi Pan Liang Dong Houlin Liu |
author_sort |
Cui Dai |
title |
Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources |
title_short |
Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources |
title_full |
Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources |
title_fullStr |
Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources |
title_full_unstemmed |
Study on Vibration Characteristics of Marine Centrifugal Pump Unit Excited by Different Excitation Sources |
title_sort |
study on vibration characteristics of marine centrifugal pump unit excited by different excitation sources |
publisher |
MDPI AG |
series |
Journal of Marine Science and Engineering |
issn |
2077-1312 |
publishDate |
2021-03-01 |
description |
In order to study the vibration mechanism of a marine centrifugal pump unit and explore the contribution of vibration caused by different vibration excitation sources, a marine centrifugal pump with a specific speed of 66.7 was used for research. A numerical calculation model of the flow field and electromagnetic field of the pump unit was established to analyze the frequency spectrum characteristics and contribution of pump unit vibration caused by different excitation sources. Using the modal superposition method, the vibration characteristics of the pump unit caused by fluid excitation and electromagnetic excitation were analyzed. The results show that the main frequency of pump unit vibration caused by fluid excitation was at the 1× blade passing frequency. The main frequency of pump unit vibration caused by electromagnetic excitation was at the 2× utility frequency. The contribution of different excitation sources to the vibration of marine centrifugal pump unit was in the following order: fluid excitation on the inner surface of the pump electromagnetic excitation fluid excitation in the impeller. |
topic |
marine centrifugal pump vibration excitation source fluid excitation electromagnetic excitation numerical simulation |
url |
https://www.mdpi.com/2077-1312/9/3/274 |
work_keys_str_mv |
AT cuidai studyonvibrationcharacteristicsofmarinecentrifugalpumpunitexcitedbydifferentexcitationsources AT yuhangzhang studyonvibrationcharacteristicsofmarinecentrifugalpumpunitexcitedbydifferentexcitationsources AT qipan studyonvibrationcharacteristicsofmarinecentrifugalpumpunitexcitedbydifferentexcitationsources AT liangdong studyonvibrationcharacteristicsofmarinecentrifugalpumpunitexcitedbydifferentexcitationsources AT houlinliu studyonvibrationcharacteristicsofmarinecentrifugalpumpunitexcitedbydifferentexcitationsources |
_version_ |
1721548032487456768 |