Vibration transmission characteristics of composite laminate joints based on power flow

ObjectivesIn order to investigate the influence of joints in composite laminate plates on the vibration transfer characteristics of structures, this study uses power flow based on the finite element method (FEM) and a related visualization technique.MethodsFirst, a method that describes plate vibrat...

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Main Authors: Dajiang WU, Zhiyuan MEI, Zhenlong ZHOU
Format: Article
Language:English
Published: Editorial Office of Chinese Journal of Ship Research 2023-04-01
Series:Zhongguo Jianchuan Yanjiu
Subjects:
Online Access:http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02527
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author Dajiang WU
Zhiyuan MEI
Zhenlong ZHOU
author_facet Dajiang WU
Zhiyuan MEI
Zhenlong ZHOU
author_sort Dajiang WU
collection DOAJ
description ObjectivesIn order to investigate the influence of joints in composite laminate plates on the vibration transfer characteristics of structures, this study uses power flow based on the finite element method (FEM) and a related visualization technique.MethodsFirst, a method that describes plate vibration by power flow in solid elements is proven to be feasible, then power flow transmission efficiency is introduced and a method of calculating it in a finite element model is proposed and verified by the admittance power flow method. Finally, two joint simulations of embedded joints and screw joints are obtained, as well as the power flow transmission efficiency curve and typical power flow vector diagram.ResultsThe results show significant differences in vibration transmission and power flow transmission efficiency between the two models. ConclusionsPower flow based on FEM can directly reflect the vibration energy transmission path of a connected structure, which can provide useful references for the design of composite structures.
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spelling doaj.art-fa4cbfde49064955a70de8e3a08765232023-05-12T05:33:49ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852023-04-0118211412010.19693/j.issn.1673-3185.02527ZG2527Vibration transmission characteristics of composite laminate joints based on power flowDajiang WU0Zhiyuan MEI1Zhenlong ZHOU2College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, ChinaCollege of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, ChinaCollege of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, ChinaObjectivesIn order to investigate the influence of joints in composite laminate plates on the vibration transfer characteristics of structures, this study uses power flow based on the finite element method (FEM) and a related visualization technique.MethodsFirst, a method that describes plate vibration by power flow in solid elements is proven to be feasible, then power flow transmission efficiency is introduced and a method of calculating it in a finite element model is proposed and verified by the admittance power flow method. Finally, two joint simulations of embedded joints and screw joints are obtained, as well as the power flow transmission efficiency curve and typical power flow vector diagram.ResultsThe results show significant differences in vibration transmission and power flow transmission efficiency between the two models. ConclusionsPower flow based on FEM can directly reflect the vibration energy transmission path of a connected structure, which can provide useful references for the design of composite structures.http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02527composite laminatesconnecting structurespower flowvibration transmissionfinite element method
spellingShingle Dajiang WU
Zhiyuan MEI
Zhenlong ZHOU
Vibration transmission characteristics of composite laminate joints based on power flow
Zhongguo Jianchuan Yanjiu
composite laminates
connecting structures
power flow
vibration transmission
finite element method
title Vibration transmission characteristics of composite laminate joints based on power flow
title_full Vibration transmission characteristics of composite laminate joints based on power flow
title_fullStr Vibration transmission characteristics of composite laminate joints based on power flow
title_full_unstemmed Vibration transmission characteristics of composite laminate joints based on power flow
title_short Vibration transmission characteristics of composite laminate joints based on power flow
title_sort vibration transmission characteristics of composite laminate joints based on power flow
topic composite laminates
connecting structures
power flow
vibration transmission
finite element method
url http://www.ship-research.com/en/article/doi/10.19693/j.issn.1673-3185.02527
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AT zhiyuanmei vibrationtransmissioncharacteristicsofcompositelaminatejointsbasedonpowerflow
AT zhenlongzhou vibrationtransmissioncharacteristicsofcompositelaminatejointsbasedonpowerflow