Publication

Performance analysis and optimization of the travelling wave ultrasonic motor

Yves Perriard
2002
Conference Papers

Résumé

We will present a method allowing to evaluate the mechanical performances (torque, speed, mechanical power, dissipated losses in the surface of contact between stator and rotor) of the travelling wave ultrasonic motors. The visualization of the motor characteristics will make it possible to the manufacturer to optimize the operation point of the motor compared to these proper used criteria. The method was developed based only on the two-dimensional equivalent mechanical model of the motor.

Source officielle

https://infoscience.epfl.ch/entities/publication/3a78406d-e68a-4904-9805-d2f0e72d76a4

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Yves Perriard
2002
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/3a78406d-e68a-4904-9805-d2f0e72d76a4

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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Performance analysis and optimization of the travelling wave ultrasonic motor

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