Analysis of dynamic contact inside the piezoelectric motor using the RBDO

Authors: A. Mohsine, B. Radi, and A. El Hami

Institutions: Ecole Polytechnique (France), F.S.T Errachidia (Morocco), INSA Rouen (France)

Abstract: In this paper, we present a study about the Reliability-Based Design Optimization analysis (RBDO) of the piezoelectric engines with travelling wave taking into account the dynamic contact between the different components (stator and rotor). Generally, the life of these motors is limited by important abrasion of the different components. So, the notion of random variables and the risk of failure must be integrated in the mechanical analysis to ensure the good working of the system. The numerical treatment of the dynamic contact is presented and discussion of two differents approachs about RBDO is given. The numerical tests show the efficiency of our proposed approach named dynamic hybrid method.

Keywords: Reliability analysis, Finite element analysis, Reliability-based design, Optimization, Dynamic contact

Ijodir 2009 / Vol 4 n°2 - Analysis of dynamic contact inside the piezoelectric motor using the RBDO
   2010-09-20  0 B  1331