Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull

<b>Objectives</b> The resonance changer (RC) is designed under rigid boundary condition and then applied to the elastic coupling boundary condition. This paper explores the influence of changes in boundary conditions on RC parameter design and its vibration reduction effect.<b>Meth...

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Main Authors: YOU Jingyue, ZHAO Yao, ZHANG Ganbo, CHU Wei
Format: Article
Language:English
Published: Editorial Office of Chinese Journal of Ship Research 2020-12-01
Series:Zhongguo Jianchuan Yanjiu
Subjects:
Online Access:http://html.rhhz.net/ZGJCYJ/html/2020-6-137.htm
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author YOU Jingyue
ZHAO Yao
ZHANG Ganbo
CHU Wei
author_facet YOU Jingyue
ZHAO Yao
ZHANG Ganbo
CHU Wei
author_sort YOU Jingyue
collection DOAJ
description <b>Objectives</b> The resonance changer (RC) is designed under rigid boundary condition and then applied to the elastic coupling boundary condition. This paper explores the influence of changes in boundary conditions on RC parameter design and its vibration reduction effect.<b>Methods</b> Considering the characteristics of the shafting rotor, a dynamic model of a shafting-hull coupling system with a RC is established. Based on the transfer matrix method, the vibration and force transfer characteristics of the system are analyzed. The structural parameters of the RC are designed according to the shafting longitudinal vibration characteristics under rigid boundary conditions, then applied to the hull.<b>Results</b> The results show the feasibility of the above parameter design and application scheme. The influence of the anti-resonance vibration isolation mechanism on the system can be divided into the stiffness region, anti-resonance region and mass region. Through sensitivity analysis, it is proposed that the structural parameters of the RC are adjustable.<b>Conclusions</b> The results of this study can provide valuable references for the application of RC to full-sized ships.
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spelling doaj.art-1683ca4711ea4858ac3fba488bd6cb4b2022-12-21T19:00:39ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31851673-31852020-12-0115613714210.19693/j.issn.1673-3185.018022020-6-137Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hullYOU JingyueZHAO YaoZHANG GanboCHU Wei<b>Objectives</b> The resonance changer (RC) is designed under rigid boundary condition and then applied to the elastic coupling boundary condition. This paper explores the influence of changes in boundary conditions on RC parameter design and its vibration reduction effect.<b>Methods</b> Considering the characteristics of the shafting rotor, a dynamic model of a shafting-hull coupling system with a RC is established. Based on the transfer matrix method, the vibration and force transfer characteristics of the system are analyzed. The structural parameters of the RC are designed according to the shafting longitudinal vibration characteristics under rigid boundary conditions, then applied to the hull.<b>Results</b> The results show the feasibility of the above parameter design and application scheme. The influence of the anti-resonance vibration isolation mechanism on the system can be divided into the stiffness region, anti-resonance region and mass region. Through sensitivity analysis, it is proposed that the structural parameters of the RC are adjustable.<b>Conclusions</b> The results of this study can provide valuable references for the application of RC to full-sized ships.http://html.rhhz.net/ZGJCYJ/html/2020-6-137.htmresonance changerelastic boundary conditionsanti-resonance vibration isolationtransfer matrix method
spellingShingle YOU Jingyue
ZHAO Yao
ZHANG Ganbo
CHU Wei
Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
Zhongguo Jianchuan Yanjiu
resonance changer
elastic boundary conditions
anti-resonance vibration isolation
transfer matrix method
title Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
title_full Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
title_fullStr Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
title_full_unstemmed Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
title_short Anti-resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
title_sort anti resonance vibration isolation analysis of shafting longitudinal vibration under elastic coupling of hull
topic resonance changer
elastic boundary conditions
anti-resonance vibration isolation
transfer matrix method
url http://html.rhhz.net/ZGJCYJ/html/2020-6-137.htm
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AT zhangganbo antiresonancevibrationisolationanalysisofshaftinglongitudinalvibrationunderelasticcouplingofhull
AT chuwei antiresonancevibrationisolationanalysisofshaftinglongitudinalvibrationunderelasticcouplingofhull