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Vibration analysis of a rotating magnetorheological tapered sandwich beam

Navazi, H. M ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1016/j.ijmecsci.2017.01.016
  3. Publisher: Elsevier Ltd , 2017
  4. Abstract:
  5. This paper investigates the free vibration analysis of a doubly tapered magnetorheological rotating sandwich beam based on the Euler-Bernoulli theory. The beam is made of a magnetorheological elastomer core sandwiched between two elastic layers. Through energy approach the kinetic and potential energies of the system are written and using the Lagrange equation the discretized form of the governing equation is derived based on the Ritz method. The free vibration analysis is carried out to obtain the natural frequency and the corresponding loss factor of the beam. Finally, after validating the formulation in order to provide a deep insight the effects of different parameters on the free vibration characteristics of the beam are studied through a comprehensive survey. © 2017 Elsevier Ltd
  6. Keywords:
  7. Free vibration ; Magnetorheological material ; Natural frequency ; Rotating tapered beam ; Sandwich beam ; Composite beams and girders ; Equations of motion ; Natural frequencies ; Potential energy ; Sandwich structures ; Euler-Bernoulli theory ; Free vibration ; Free vibration characteristic ; Free-vibration analysis ; Magneto-rheological elastomers ; Magnetorheological materials ; Rotating tapered beams ; Sandwich beams ; Vibration analysis
  8. Source: International Journal of Mechanical Sciences ; Volume 122 , 2017 , Pages 308-317 ; 00207403 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0020740317300607