The effects of the attached mass and rotary inertia on the natural frequencies are discussed.
In comparison with SWCNT sensor, DWCNT is more stable, but less sensitive for smaller attached mass.
The results of free vibrations without distributed attached mass are validated by previous literatures.
The resonant frequencies are calculated for bending vibration of a sensor with attached mass.
The resonance frequencies of functionally graded nanocantilevers with attached mass are calculated for various indices.
Some typical mode shapes are presented in order to illustrate the effects of the attached mass.
Tiny vibrating rods can be used as highly sensitive weighing scales, because an attached mass — down to a single virus particle — will change their oscillation frequency.
For the case of a single attached mass, experiments are conducted and the results are compared to the theoretical ones.
The nanotube is modeled as a clamped-free Timoshenko beam carrying an attached mass at its free end.
Parameters which are investigated in this paper are thickness of the shell, thickness of the distributed attached mass, elasticity moduli of the distributed attached mass and radius of curvatures of shells.
