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Acta Aeronautica et Astronautica Sinica ›› 2023, Vol. 44 ›› Issue (13): 227827-227827.doi: 10.7527/S1000-6893.2022.27827

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles     Next Articles

Vibration analysis of rotating dual⁃functional gradient composite cylindrical shell reinforced with carbon nanotubes

Yu WANG(), Hongda XU, Hao LI, Chang LI   

  1. School of Mechanical Engineering and Automation,University of Science and Technology Liaoning,Anshan 114051,China
  • Received:2022-07-18 Revised:2022-10-20 Accepted:2022-11-09 Online:2022-11-21 Published:2022-11-17
  • Contact: Yu WANG E-mail:wangyu435@126.com
  • Supported by:
    National Natural Science Foundation of China(51775257);Science Foundation of Education Department of Liaoning(2019LNJC01)

Abstract:

The traveling wave vibration characteristics of a rotating Dual-Functionally Graded Carbon Nanotube Reinforced Composite (DFG-CNTRC) cylindrical shell are investigated under three boundary conditions. Firstly, according to the established shell model, the performance parameters of five types of carbon nanotube reinforced materials based on the metal-ceramic functionally graded matrix are analyzed. Secondly, based on the Sanders shell theory and transfer matrix method, the ordinary differential equations and the global transfer matrix relation for any cross section state vector are derived considering the influence of rotational speed. Finally, the dynamic differential equations are solved for three typical boundary conditions, namely, Simply supported-Simply supported (S-S), Clamped-Simply supported (C-S) and Clamped-Free (C-F), and the correctness of the theoretical analysis is verified. The research shows that the effect of Coriolis force and centrifugal force causes the separation phenomenon and increasing trend of the traveling wave frequency, and the boundary conditions and the volume fraction of carbon nanotubes have a significant influence on travelling wave vibration characteristics, while the volume fraction index of the matrix material has little influence, and the length and thickness have different effects on the vibration characteristics of the shell.

Key words: functionally graded material matrix, carbon nanotube reinforced material, rotating cylindrical shell, transfer matrix method, travelling wave vibration

CLC Number: