TY - JOUR T1 - Variational Principles for Vibrating Carbon Nanotubes Conveying Fluid, Based on the Nonlocal Beam Model JO - East Asian Journal on Applied Mathematics VL - 3 SP - 209 EP - 221 PY - 2018 DA - 2018/02 SN - 5 DO - http://doi.org/10.4208/eajam.130814.250515a UR - https://global-sci.org/intro/article_detail/eajam/10797.html KW - Variational principles, carbon nanotube, fluid flow, nonlocal beam, vibration. AB -

Variational principles are derived in order to facilitate the investigation of the vibrations and stability of single and double-walled carbon nanotubes conveying a fluid, from a linear time-dependent partial differential equation governing their displacements. The nonlocal elastic theory of Euler-Bernoulli beams takes small-scale effects into account. Hamilton’s principle is obtained for double-walled nano-tubes conveying a fluid. The natural and geometric boundary conditions identified are seen to be coupled and time-dependent due to nonlocal effects.