Thermo-mechanical vibration analysis of rotating nonlocal nanoplates applying generalized differential quadrature method

• Published in: Mechanics of advanced materials and structures Vol. 24; no. 15; pp. 1257 - 1273
• Main Authors: Ebrahimi, Farzad, Shafiei, Navvab, Kazemi, Mohammad, Mousavi Abdollahi, Seyed Mostafa
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 18.11.2017; Taylor & Francis Ltd
• Subjects: Angular velocity; Axial forces; Boundary conditions; Cantilever plates; Differential equations; Generalized differential quadrature method; Hamilton's principle; Mathematical models; Motors; nonlocal mechanics theory; Plate theory; Plates (structural members); rotating nanoplate; Thermal; Thermal analysis; Thermomechanical analysis; Turbines; Vibration analysis; vibrations
• ISSN: 1537-6494; 1537-6532
• DOI: 10.1080/15376494.2016.1227499

In this study, thermal and small-scale effects on the flapwise bending vibrations of a rotating nanoplate, which can be the basis of nano-turbine design, have been analyzed. The nano-turbine is made of an orthotropic nanoplate with a setting angle that is modeled based on the classical plate theory (CPT) with cantilever boundary conditions. The axial forces are also included in the model as the true spatial variation due to the rotation and temperature change. The governing equations and boundary conditions are derived according to Hamilton's principle and the governing equations are solved with the aid of the generalized differential quadrature method. The effects of small-scale parameter, nondimensional angular velocity, temperature change, and setting angles in the first four nondimensional frequencies are discussed. Due to the consideration of the rotating effects, results of this study are applicable in nano-machines, such as nano-motors, nano-rotor, and other rotating nano-structures. Also, by considering the effect of thermal loading on rotation of a nanoplate, the results are useful in the design of nano-turbines.