Publication

Influences to the mechanical performances of the travelling wave ultrasonic motor by varying the prestressing force between stator and rotor

Yves Perriard
2003
Conference Papers

Abstract

Based on a mathematical model, simulation results show how the mechanical performances of the motor are sensitive to the prestressing force. A test bench has been developed in the laboratory for experimental measurements. The motor is driven by a two-phase resonant converter controlled by a DSP in order to realize a flexible control scheme. An hysteresis brake dynamometer controlled by PC make it possible to generate any load profile. Results obtained by measurement confirm the motor sensitivity to the variation of the prestressing force, as shown in the simulation result. Thus, it makes it possible to validate the model and proves that the choice of the prestressing force is very important to optimize the motor design

Official source

https://infoscience.epfl.ch/entities/publication/ad486aa0-0176-400e-91ce-c7a7db56fbbf

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Yves Perriard
2003
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ad486aa0-0176-400e-91ce-c7a7db56fbbf

About this result

Related concepts (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.

Simulation

A simulation is the imitation of the operation of a real-world process or system over time. Simulations require the use of models; the model represents the key characteristics or behaviors of the selected system or process, whereas the simulation represents the evolution of the model over time. Often, computers are used to execute the simulation. Simulation is used in many contexts, such as simulation of technology for performance tuning or optimizing, safety engineering, testing, training, education, and video games.

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.

Related publications (32)

Influences to the mechanical performances of the travelling wave ultrasonic motor by varying the prestressing force between stator and rotor

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