NONLINEAR STATIC AND DYNAMIC BEHAVIOR OF AN IMPERFECT CIRCULAR MICROPLATE UNDER ELECTROSTATIC ACTUATION
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | NONLINEAR STATIC AND DYNAMIC BEHAVIOR OF AN IMPERFECT CIRCULAR MICROPLATE UNDER ELECTROSTATIC ACTUATION |
| Type de publication | Conference Paper |
| Year of Publication | 2017 |
| Auteurs | Jallouli A, Kacem N, Lardies J |
| Conference Name | PROCEEDINGS OF THE ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, 2017, VOL 4 |
| Publisher | ASME, Design Engn Div; ASME, Comp & Informat Engn Div |
| Conference Location | THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA |
| ISBN Number | 978-0-7918-5816-5 |
| Résumé | In this article, we investigate the nonlinear static and dynamic behavior of a clamped circular microplate in presence of imperfections. By taking in account the von Ketrman nonlinearity, the geometrical imperfections lead to a significant delay in static pull-in occurrence. Numerical simulations are performed in the frequency domain to study the dynamic behavior under primary resonance. A parametric analysis is conducted with respect to actuation voltages and initial deflection in order to capture the competition between hardening and softening behavior. Interestingly, we show that a geometric imperfection can change the type of nonlinear response from softening to hardening. In practice, the imperfection can be functionalized to enhance the performances of capacitive micromachined ultrasonic transducers. |