Vibration analysis of functionally graded nanocomposite plate moving in two directions

  • Arani, Ali Ghorbanpour (Faculty of Mechanical Engineering, Institute of Nanoscience & Nanotechnology, University of Kashan) ;
  • Haghparast, Elham (Faculty of Mechanical Engineering, Institute of Nanoscience & Nanotechnology, University of Kashan) ;
  • Zarei, Hassan BabaAkbar (Faculty of Mechanical Engineering, Institute of Nanoscience & Nanotechnology, University of Kashan)
  • Received : 2016.10.17
  • Accepted : 2017.01.26
  • Published : 2017.04.10


In the present study, vibration analysis of functionally graded carbon nanotube reinforced composite (FGCNTRC) plate moving in two directions is investigated. Various types of shear deformation theories are utilized to obtain more accurate and simplest theory. Single-walled carbon nanotubes (SWCNTs) are selected as a reinforcement of composite face sheets inside Poly methyl methacrylate (PMMA) matrix. Moreover, different kinds of distributions of CNTs are considered. Based on extended rule of mixture, the structural properties of composite face sheets are considered. Motion equations are obtained by Hamilton's principle and solved analytically. Influences of various parameters such as moving speed in x and y directions, volume fraction and distribution of CNTs, orthotropic viscoelastic surrounding medium, thickness and aspect ratio of composite plate on the vibration characteristics of moving system are discussed in details. The results indicated that thenatural frequency or stability of FGCNTRC plate is strongly dependent on axially moving speed. Moreover, a better configuration of the nanotube embedded in plate can be used to increase the critical speed, as a result, the stability is improved. The results of this investigation can be used in design and manufacturing of marine vessels and aircrafts.


vibration${\backslash}$vibration analysis;plate;fiber reinforced polymers (FRP);sandwich composite;composite structures


Supported by : University of Kashan


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