Techno Press
Techno Press

Smart Structures and Systems   Volume 18, Number 6, December 2016, pages 1087-1109
Thermal effects on nonlocal vibrational characteristics of nanobeams with non-ideal boundary conditions
Farzad Ebrahimi and Gholam Reza Shaghaghi

Abstract     [Full Text]
    In this manuscript, the small scale and thermal effects on vibration behavior of preloaded nanobeams with non-ideal boundary conditions are investigated. The boundary conditions are assumed to allow small deflections and moments and the concept of non-ideal boundary conditions is applied to the nonlocal beam problem. Governing equations are derived through Hamilton\' s principle and then are solved applying Lindstedt-Poincare technique to derive fundamental natural frequencies. The good agreement between the results of this research and those available in literature validated the presented approach. The influence of various parameters including nonlocal parameter, thermal effect, perturbation parameter, aspect ratio and pre-stress load on free vibration behavior of the nanobeams are discussed in details.
Key Words
    small scale effect; nonlocal beam theory; non-ideal boundary conditions; vibration; thermal effect; preload parameter; perturbation parameter
Farzad Ebrahimi and Gholam Reza Shaghaghi: Department of Mechanical Engineering, Faculty of Engineering, Imam Khomeini International University, Qazvin, Iran

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