Loading...

Influence of intermolecular forces on dynamic pull-in instability of micro/nano bridges

Moghimi Zand, M ; Sharif University of Technology

545 Viewed
  1. Type of Document: Article
  2. DOI: 10.1115/ESDA2010-25095
  3. Abstract:
  4. In this study, influences of intermolecular forces on dynamic pull-in instability of electrostatically actuated beams are investigated. Effects of midplane stretching, electrostatic actuation, fringing fields and intermolecular forces are considered. The boundary conditions of the beams are clamped-free and clamped-clamped. A finite element model is developed to discretize the governing equations and Newmark time discretization is then employed to solve the discretized equations. The results indicate that by increasing the Casimir and van der Waals effects, the effect of inertia on pull-in values considerably increases
  5. Keywords:
  6. Casimir ; Discretized equations ; Electrostatic actuation ; Finite element models ; Fringing fields ; Governing equations ; Intermolecular forces ; ON dynamics ; Pull-in ; Pull-in instability ; Time discretization ; Van der Waals effect ; Chemical bonds ; Electrostatic actuators ; Finite element method ; Systems analysis ; Van der Waals forces ; Molecules
  7. Source: ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, 12 July 2010 through 14 July 2010 ; Volume 5 , 2010 , Pages 655-662 ; 9780791849194 (ISBN)
  8. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1618447