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Effects of rotary inertia and shear deformation on nonlinear vibration of micro/nano-beam resonators

Ramezani, A ; Sharif University of Technology | 2005

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  1. Type of Document: Article
  2. DOI: 10.1115/IMECE2005-80204
  3. Publisher: 2005
  4. Abstract:
  5. In this paper, the large amplitude tree vibration of a doubly clamped microbeam is considered. The effects of shear deformation and rotary inertia on the large amplitude vibration of the microbeam are investigated. To this end, first Hamilton's principle is used in deriving the partial differential equation of the microbeam response under the mentioned conditions. Then, implementing the Galerkin's method the partial differential equation is converted to an ordinary nonlinear differential equation. Finally, the method of multiple scales is used to determine a second order perturbation solution for the obtained ODE. The results show that nonlinearity acts in the direction of increasing the natural frequency of the doubly clamped microbeam. Shear deformation and rotary inertia have significant effects on the large amplitude vibration of thick and short microbeams. Copyright © 2005 by ASME
  6. Keywords:
  7. Microbeam ; Nonlinear vibration ; Rotary inertia ; Galerkin methods ; Nonlinear control systems ; Partial differential equations ; Perturbation techniques ; Shear deformation ; Vibrations (mechanical) ; Resonators
  8. Source: 2005 ASME International Mecahnical Engineering Congress and Exposition, IMECE 2005, Orlando, FL, 5 November 2005 through 11 November 2005 ; Volume 7 MEMS , 2005 , Pages 439-445 ; 1096665X (ISSN); 079184224X (ISBN); 9780791842249 (ISBN)
  9. URL: https://asmedigitalcollection.asme.org/IMECE/proceedings-abstract/IMECE2005/4224X/439/311547