Bimorph hybrid fluid diaphragm device for vibration energy harvesting

Florian Huet (1) , Fabien Formosa (1) , Adrien Badel (1)

1 SYMME - Laboratoire SYstèmes et Matériaux pour la MEcatronique

A low resonant frequency piezoelectric energy harvesting using a hybrid fluid diaphragm (HFD) is presented. This paper describes the design, fabrication and characterization of such a device for harvesting energy from vibrations. The PHFD consists in an incompressible fluid confined between two thin piezoelectric membranes. The output voltage and power of the P(VDF-TrFE) HFD are studied based on experimental and simulation results. This device resonates at 164 Hz for low acceleration (10 m/s²). The simulations showed the power production of about 6 µW with a power density of 78.98 µW/cm³ of electroactive material volume.

Mots clés: Vibration energy harvesting; Piezoelectric mem-brane; Fluid-structure interaction; Linear generator

Domaines: Sciences de l'ingénieur [physics]

Florian Huet, Fabien Formosa, Adrien Badel. Bimorph hybrid fluid diaphragm device for vibration energy harvesting. 2016 11th France-Japan & 9th Europe-Asia Congress on Mechatronics (MECATRONICS) /17th Internationall Conference on Research and Education in Mechatronics (REM), Jun 2016, Compiègne, France. pp.327-330. ⟨hal-02042747⟩