Dynamic characteristics of damped viscoelastic nonlocal Euler-Bernoulli beams

被引：0

作者：

Lei, Y. ^{[1
]}

Murmu, T. ^{[2
]}

Adhikari, S. ^{[3
]}

Friswell, M.I. ^{[3
]}

机构：

[1] College of Aerospace and Material Engineering, National University of Defence Technology, Changsha, Hunan 410073, China

[2] Department of Mechanical, Aeronautical and Biomedical Engineering, University of Limerick, Limerick, Ireland

[3] College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, United Kingdom

来源：

European Journal of Mechanics, A/Solids | 2013年 / 42卷

关键词：

Number:; NCET-08-148; Acronym:; -; Sponsor:; Sponsor: Royal Society; 11272348; NSFC; Sponsor: National Natural Science Foundation of China;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The dynamic characteristics of damped viscoelastic nonlocal beams are studied in this paper. The Kelvin-Voigt and three-parameter standard viscoelastic models, velocity-dependent external damping and nonlocal Euler-Bernoulli beam theory are employed to establish the governing equations of motion for the bending vibration of nanobeams. A transfer function method (TFM) is developed to obtain closed-form and uniform solution for the vibration analysis of Euler-Bernoulli beams with different boundary conditions. New analytical expressions for critical viscoelastic parameters, damping parameters and limiting frequencies are obtained. Considering a carbon nanotube as a numerical example, the effects of the nonlocal and viscoelastic constants on the natural frequencies and damping factors are discussed. The results demonstrate the efficiency of the proposed modeling and analysis methods for free vibration analysis of viscoelastic damped nonlocal Euler-Bernoulli beams. © 2013 Elsevier Masson SAS. All rights reserved.

引用

页码：125 / 136

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