Optimization of travelling wave ultrasonic motors using a three-dimensional analysis of the contact mechanism at the stator–rotor interface

Moal, Patrice Le; Cusin, P.

doi:10.1016/s0997-7538(99)00131-x

Cited by 20 publications

(11 citation statements)

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“…In the following example, we present a study on the reliability design optimization of the stator and the rotor of an ultrasonic motor with progressive wave SHINSEI USR 60 (figure 3), which is subjected to the constraint stress [15]. …”

Section: Numerical Resultsmentioning

confidence: 99%

Optimization Safety Factors to Study an Ultrasonic Motor

Radi

Makhloufi

Hami

et al. 2010

Int. J. Simul. Multidisci. Des. Optim.

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-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.

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Section: Numerical Resultsmentioning

confidence: 99%

Optimization Safety Factors to Study an Ultrasonic Motor

Radi

Makhloufi

Hami

et al. 2010

Int. J. Simul. Multidisci. Des. Optim.

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“…Theoretical approaches assume the decoupling of the outof-plane and tangential behaviors. Moal and Cusin [20] have proposed a three-dimensional analysis of the contact mechanism at the stator-rotor interface of TWUSM. The paper has investigated optimization rules and new design methodologies dealing with the contact mechanics in rotating TWUSM.…”

Section: Ultrasonic Motorsmentioning

confidence: 99%

Ultrasonic motors: Their models, drives, controls and applications

Bekiroğlu

2007

J Electroceram

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In the last decades piezoelectrically driven ultrasonic motors have become alternative actuators to the conventional electromagnetic motors especially for precise and accurate servo positioning applications. Different types of ultrasonic motors have been constructed and manufactured. Several drive systems have been designed, implemented and proposed for these motors. A variety of control techniques have been applied to them. The research given in this study covers bases of the ultrasonic motors. Theoretical background, modeling, drive systems, control techniques and applications of the ultrasonic motors have been introduced. Firstly, the general overview has been given. Then, modeling studies focused on performance estimation and analysis of ultrasonic motors have been examined. Afterwards, drive systems and control techniques of ultrasonic motors have been investigated. Furthermore, an example drive and control system has been presented. This drive system has been designed as to be controlled digitally. In addition, the important industrial and research applications of these motors have been included. The presented study has been arranged as a review of ultrasonic motors. The important points of specifications, models, drive systems and control methods of the ultrasonic motors have been emphasized.

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“…Hagdorn et al [1998] presented the steady state simulation of dynamic behavior of TRUM in the frequency domain. Moal and Cusin [1999] performed the contact analysis between the stator and rotor and presented the operating principles involved in the elastic fitting methodology. Also, the importance of the tangential elasticity of the contact layer is investigated to explain the distribution of stick and slip at the friction [Storck and Wallaschek, 2003].…”

Section: Introductionmentioning

confidence: 99%

Creep Effect Analysis at the Friction Interface of a Rotary Ultrasonic Motor

Chen

She

2015

Int. J. Appl. Mechanics

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Theoretical and experimental studies for the creep mechanism at the friction interface between rotor and stator of traveling wave type rotary ultrasonic motors (TRUM) are performed in this work. A modeling method is developed to investigate the creep and the distributed contact pressure in the friction interface for the piezoelectric composite stator with complex geometries. The annular laminated structure of the stator is discretized into a semi-analytical plate element in the radial direction, and the teeth on top of the stator are modeled by the finite element (FE) method. Then a coupled approach for the continuous plate and FE discretized teeth is proposed to investigate the interface contact mechanism. Finally, the accelerated aging tests for TRUM are conducted to study the creep effect in the friction layer during the long-term storage, the startup state is investigated experimentally by the transient characteristics measurement system. It is shown that transient characteristics of TRUM are strongly affected by the creep effect at the friction interface. The vibration response of the stator is weakened by the creep of the contact layer, and the amplitude of the piezoelectric composite plate decreases with increasing creep percentage. It is theoretically and experimentally proved that the creep percentage of over 20% can lead to the startup failure of TRUM.

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Optimization of travelling wave ultrasonic motors using a three-dimensional analysis of the contact mechanism at the stator–rotor interface

Cited by 20 publications

References 0 publications

Optimization Safety Factors to Study an Ultrasonic Motor

Optimization Safety Factors to Study an Ultrasonic Motor

Ultrasonic motors: Their models, drives, controls and applications

Creep Effect Analysis at the Friction Interface of a Rotary Ultrasonic Motor

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