Thermal Vibration of Embedded Double TB-CNTs Conveying Fluid Based on modified couple stress

چکیده مقاله

In this study, thermal vibration of double of Carbon nanotubes (CNTs) system conveying fluid coupled by Pasternak medium is described based on modified couple stress theory where CNTs are placed in uniform temperature change. Considering Timoshenko beam (TB) model and Knudsen number, the higher order equations of motion are derived using the Hamilton’s principle where differential quadrature method (DQM) is applied to obtain the frequency of coupled CNTs system. The results indicate that temperature change and aspect ratio have significant effect on stability of coupled system. Also, it is found that trend of figures have good agreement with the other studies. The results could be used in design of nano/micro mechanical devices for controlling stability of system by thermal field and velocity of conveying fluid.