Inertial Piezoelectric Motors are basically considered as extremely simplemotors, but weak and slow compared to other piezoelectric motor technologies.The present study is about introduction of amplified piezoelectric actuator asactive component of an inertial motor. The aim of this work is to understand andvalidate the benefits from amplification in terms of motor maximal speed as wellas motor input current, with theory and experimentations. Building of models,analytical and numerical, allows arguing on real interests and limitations of theproposed innovation. As a complement, designs, realisations and tests are madeon three different scales of motors, in order to fit various environmentsconstrains. These constrains go from strong magnetic fields compatibility (suchas Magnetic Resonant Medical Imaging) to space application field (vacuum,vibrations…), passing by miniaturisation, force maximisation, as well as lowtemperature operation (down to -180°C). In addition to design, use of“adjustable” parameters of inertial motors, input signal as an example, giveslarger application opportunities, by increasing force range, etc. Finally, becausedesign process using “stopped” and “adjustable” parameters seems to offergood application perspectives to mechatronics field, this process is summarisedand generalised in order to be implemented by designers.
