Publication

Analytical and numerical modeling of an ultrasonic stepping motor using standing waves

Yves Perriard
2004
Conference Papers

Résumé

Piezoelectric motors (usually called ultrasonic) show interesting characteristics. Not only they deliver high torques at low speeds but their structure confers to them a braking torque without energy supply. This paper firstly present a list of possible solutions for this type of motors. Thereafter, the most promising solution is chosen and developed more in detail. Finite elements simulations of the vibration modes of the motor are carried out with the aim of determining the resonance frequency of the system for the selected mode. A theoretical modeling of the operating principle of the motor is established in order to be able to characterize the position, speed and torque according to the selected parameters. Lastly, the feasibility and the characteristics of such a motor are discussed. © 2004 IEEE.

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https://infoscience.epfl.ch/entities/publication/03adc66e-e9e3-4cbc-8ab6-df896836ebb6

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Yves Perriard
2004
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/03adc66e-e9e3-4cbc-8ab6-df896836ebb6

À propos de ce résultat

Concepts associés (32)

Electric motor

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy.

AC motor

An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings.

DC motor

A DC motor is an electrical motor that uses direct current (DC) to produce mechanical force. The most common types rely on magnetic forces produced by currents in the coils. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current in part of the motor. DC motors were the first form of motors widely used, as they could be powered from existing direct-current lighting power distribution systems.

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Publications associées (32)

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Analytical and numerical modeling of an ultrasonic stepping motor using standing waves

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