Vibration of axially moving sandwich plate with honeycomb core and nanocomposite face sheets

This study aimed to develop a model to accurately predict the acceleration of structural systems during an earthquake. The acceleration and applied force of a structure were measured at current time step and the velocity and displacement were estimated through linear This paper studies the vibrating behavior of axially moving sandwich plates with carbon nanotubes-reinforced composite face sheets and honeycomb core. To evaluate and select an appropriate structure, various cores including polyurethane foam, balsa wood, and honeycomb are examined. Governing partial differential equations are derived using sinusoidal shear deformation theory and within the framework of Hamilton's principle. Halpin–Tsai model is applied to predict the elasticity of composite material based on the geometry and uniformly distributed and random orientation of carbon nanotubes through the epoxy resin matrix. A semi-analytical method is developed for calculating the moving speed and natural frequencies of the sandwich structure. The accuracy of presented results is verified by comparing predicted results with research that is available in the previous literature. The detailed parametric study is focused on the effects of various cores, lateral ratio, the thickness of the core-to-face sheet ratio, the thickness-to-length ratio of the honeycomb cell, angles of the honeycomb cell, dimensionless speed, boundary conditions, and different modes. Results indicated that axial velocity and geometrical ratios improve the vibrational behavior of sandwich nanocomposite plates. The results of this investigation can be presented as a useful reference in the design and manufacturing of marine vessels and aircraft.