@article{(Open Science Index):https://publications.waset.org/pdf/10009382, title = {Longitudinal Vibration of a Micro-Beam in a Micro-Scale Fluid Media}, author = {M. Ghanbari and S. Hossainpour and G. Rezazadeh}, country = {}, institution = {}, abstract = {In this paper, longitudinal vibration of a micro-beam in micro-scale fluid media has been investigated. The proposed mathematical model for this study is made up of a micro-beam and a micro-plate at its free end. An AC voltage is applied to the pair of piezoelectric layers on the upper and lower surfaces of the micro-beam in order to actuate it longitudinally. The whole structure is bounded between two fixed plates on its upper and lower surfaces. The micro-gap between the structure and the fixed plates is filled with fluid. Fluids behave differently in micro-scale than macro, so the fluid field in the gap has been modeled based on micro-polar theory. The coupled governing equations of motion of the micro-beam and the micro-scale fluid field have been derived. Due to having non-homogenous boundary conditions, derived equations have been transformed to an enhanced form with homogenous boundary conditions. Using Galerkin-based reduced order model, the enhanced equations have been discretized over the beam and fluid domains and solve simultaneously in order to obtain force response of the micro-beam. Effects of micro-polar parameters of the fluid as characteristic length scale, coupling parameter and surface parameter on the response of the micro-beam have been studied. }, journal = {International Journal of Mechanical and Mechatronics Engineering}, volume = {12}, number = {8}, year = {2018}, pages = {805 - 812}, ee = {https://publications.waset.org/pdf/10009382}, url = {https://publications.waset.org/vol/140}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 140, 2018}, }