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Screen Shot 2016-07-06 at 10.45.39The objective of this paper is to provide results of an experimental and analytical investigation of Amplified Piezoelectric Actuators (APA) as vibrational isolator in a configuration of a mechanical Single Degree of Freedom system. The investigation is aimed at assessment of the mechanical properties modification ability via shunting techniques. The investigation consist of a phenomenological modelling of the APAs considered as generators and experimental verification of the vibrational energy dissipation ability in frequency domain.

The results obtained during this investigation reveal that it is feasible to receive more than 20 dB reduction of the displacement amplification in the resonant range. Moreover, three tested examples of APA reveal up to 9 % of resonant frequency shift due to proper adjustment of the electronic shunting circuit, which is an encouragement for further analyses towards application of the APAs in semi-passive vibration control applications.

Cedrat Technologies S.A

CEDRAT TECHNOLOGIES offers off the shelf mechatronics products including piezoelectric and magnetic actuators, motors, mechanisms, transducers and sensors with corresponding drivers and controllers. These mechatronics products are used for scientific and industrial applications requiring features such as: micro & nano positioning, generation of vibrations, micro-scanning, fast & precise motion control, active control of vibration, energy harvesting…

CEDRAT TECHNOLOGIES offers off the shelf mechatronics products including piezoelectric and magnetic actuators, motors, mechanisms, transducers and sensors with corresponding drivers and controllers. These mechatronics products are used for scientific and industrial applications requiring features such as: micro & nano positioning, generation of vibrations, micro-scanning, fast & precise motion control, active control of vibration, energy harvesting…

CEDRAT TECHNOLOGIES is recognised as a highly innovative company and has received several awards. The products, projects and training courses offered by the company focus on:
•Smart Actuators: Actuators & motors based on piezoelectric ceramics, electroactive polymers, ultrasonic effects, magnetostrictive alloys, magnetorheological fluids (MRF) & magnetic effects (moving coils, moving iron …) ; Applications : micro nano positioning, damping, vibration generation, acoustic transducers, micro actuators…

•Smart Sensors: Magnetic, magnetoresistive, magnetostrictive, piezoelectric sensors, transformers or generators; Force, Torque, Position, Speed, Acceleration sensors, including contactless sensors & resonant sensors.

•Mechatronic systems: Multi-degree-of-freedom mechanisms (XY stages, tilts); motion control; Active damping of Vibrations; Vibration (Ultrasonic or sonic) assistance to process; Proportional valves; Fast injectors.

•Detection systems: Health monitoring; NDT using magnetic or acoustic effects; Remote detection systems for position, force, torque remote measurements.

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