Vibration characteristics of rotating functionally graded porous beams reinforced by graphene platelets

  • Chu Thanh Binh Faculty of Building and Industrial Construction, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Tran Huu Quoc Faculty of Building and Industrial Construction, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
  • Duong Thanh Huan Vietnam National University of Agriculture, Trau Quy town, Gia Lam district, Hanoi, Vietnam
  • Ho Thi Hien Faculty of Building and Industrial Construction, National University of Civil Engineering, 55 Giai Phong road, Hai Ba Trung district, Hanoi, Vietnam
Keywords: rotating Timoshenko beam, vibration, functionally graded material, porous material, graphene platelets

Abstract

This work aims to study the vibration characteristics of the rotating functionally graded porous beam reinforced by graphene platelets. The beam is mounted and rotated around a hub with a constant velocity. The material properties vary along the thickness direction with two types of porosity distributions and two dispersion patterns of graphene platelet. The equations of motion based on the Timoshenko beam theory are obtained and solved using the Chebyshev-Ritz method. The effects of the parameters such as hub radius, rotating speed, weight fraction, porosity distribution, porosity coefficient, and dispersion model are presented. The present method results are also compared with numerical results available in the literature.

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Published
31-10-2021
How to Cite
Binh, C. T., Quoc, T. H., Huan, D. T., & Hien, H. T. (2021). Vibration characteristics of rotating functionally graded porous beams reinforced by graphene platelets. Journal of Science and Technology in Civil Engineering (STCE) - HUCE, 15(4), 29-41. https://doi.org/10.31814/stce.huce(nuce)2021-15(4)-03
Section
Research Papers