Optimization Safety Factors to Study an Ultrasonic Motor

Abstract

In this paper, we present a new method based on Optimal Safety Factors (OSF) in the context of the Reliability-Based Design Optimization (RBDO) analysis of ultrasonic motors with traveling wave taking into account the contact between the different components (stator and rotor). We will underline also the different methods of the RBDO analysis and we highlight the advantage of our approach based on OSF. Numerical results are given to illustrate the proposed method.

Keywords

• reliability based design optimization (rbdo)
• random variable
• risk of failure
• contact
• optimal safety factors (osf)