Micro-/nanosized cantilever beams and mass sensors under applied axial tensile/compressive force vibrating in vacuum and viscous fluid

0486464 - FZÚ 2018 RIV US eng J - Journal Article
Stachiv, Ivo - Fang, T.-H. - Chen, T.-H.
Micro-/nanosized cantilever beams and mass sensors under applied axial tensile/compressive force vibrating in vacuum and viscous fluid.
AIP Advances. Roč. 5, č. 11 (2015), s. 1-14, č. článku 117140. E-ISSN 2158-3226
R&D Projects: GA ČR GC15-13174J
Institutional support: RVO:68378271
Keywords : nanomechanical resonators * carbon nanotubes * tensile force * real-time * frequency * spectrometry * liquid
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 1.444, year: 2015

Vibrating micro-/nanosized cantilever beams under an applied axial force are the key components of various devices used in nanotechnology. In this study, we perform a complete theoretical investigation of the cantilever beams under an arbitrary value of the axial force vibrating in a specific environment such as vacuum, air or viscous fluid. Based on the results easy accessible expressions enabling one the fast and highly accurate estimations of changes in the Q-factor and resonant frequencies of beam oscillating in viscous fluid caused by the applied axial force are derived and analyzed. It has been also shown that for beam-to-string and string vibrational regimes the mode shape starts to significantly deviate from the one known for a beam without axial force. Moreover, a linear dependency of the vibrational amplitude in resonance on the dimensionless tension parameter has been found.
Permanent Link: http://hdl.handle.net/11104/0281273