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Vibration-damping characteristic analysis of constrained stand-off layer damping cylindrical shell using Rayleigh-Ritz method

Bijuan Yan (Department of Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, China)
Huijun Liang (Department of Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, China)
Minjie Jin (Department of Transportation and Logistics Engineering College, Taiyuan University of Science and Technology, Taiyuan, China)
Zhanlong Li (Department of Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, China)
Yong Song (Department of Mechanical Engineering College, Taiyuan University of Science and Technology, Taiyuan, China)

Engineering Computations

ISSN: 0264-4401

Article publication date: 27 August 2019

Issue publication date: 16 January 2020

Abstract

Purpose

In the vibration reduction field, constrained stand-off layer damping cylindrical shell plays an important role. However, due to the lack of accurate analysis of its damping characteristics, this hinders its further research and application. Therefore, the purpose of this paper is concerned with an accurate solution for the vibration-damping characteristics of a constrained stand-off-layer damping cylindrical shell (CSDCS) under various classical boundary conditions and conducts a further analysis.

Design/methodology/approach

Based on the Rayleigh–Ritz method and the Hamilton principle, a dynamic model of CSDCS is established. Then the loss factor and the frequency of CSDCS are obtained. The correctness and convergence behavior of the present model are verified by comparing the calculation results with the literature. By using for various classical boundary conditions without any special modifications in the solution procedure, the characteristics of CSDCS with S-S, C-C, C-S, C-F and S-F boundaries are discussed.

Findings

The Rayleigh–Ritz method is effective in handling the problem of CSDCS with different boundaries and an accurate solution is obtained. The boundary conditions have an important influence on the vibration and damping behavior of the CSDCS.

Originality/value

Based on the Rayleigh–Ritz method and Hamilton principle, a dynamic model of CSDCS is established for the first time, and then the loss factor and frequency of CSDCS are obtained. In addition, the effectiveness of adding the stand-off layer between the base shell and the viscoelastic layer is confirmed by discussing the characteristics of CSDCS with S-S, C-C, C-S, C-F and S-F boundaries.

Keywords

Acknowledgements

Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.

Funding: This project is sponsored by the Natural Science Foundation of Shanxi Province (Grant No. 201701D121071), National Natural Science Foundation of China (Grant No. 51805347, 51405323).

This project was sponsored by the Natural Science Foundation of Shanxi Province (Grant No. 201701D121071) and National Natural Science Foundation of China (Grant No. 51805347, 51405323). The authors are especially grateful to the anonymous reviewers for their proposals that helped to improve the quality of the paper.

Citation

Yan, B., Liang, H., Jin, M., Li, Z. and Song, Y. (2020), "Vibration-damping characteristic analysis of constrained stand-off layer damping cylindrical shell using Rayleigh-Ritz method", Engineering Computations, Vol. 37 No. 1, pp. 93-119. https://doi.org/10.1108/EC-12-2018-0580

Publisher

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Emerald Publishing Limited

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