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Publishing Language: Chinese

Vibration transmission characteristics of composite laminate joints based on power flow

Dajiang WU, Zhiyuan MEI( ), Zhenlong ZHOU
College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, China
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Abstract

Objectives

In 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.

Methods

First, 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.

Results

The results show significant differences in vibration transmission and power flow transmission efficiency between the two models.

Conclusions

Power 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.

Keywords

composite laminatesconnecting structurespower flowvibration transmissionfinite element method
CLC number: U663.9+9 Document code: A

References

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Chinese Journal of Ship Research
Volume 18 Issue 2,
April 2023
Pages 114-120
DOI: 10.19693/j.issn.1673-3185.02527

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Cite this article:
WU D, MEI Z, ZHOU Z. Vibration transmission characteristics of composite laminate joints based on power flow. Chinese Journal of Ship Research, 2023, 18(2): 114-120. https://doi.org/10.19693/j.issn.1673-3185.02527

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Received: 14 September 2021
Revised: 04 January 2022
Published: 06 April 2023
© 2023 Chinese Journal of Ship Research.