Article | REF: RE135 V1

Recovering energy from mechanical vibrations to generate electricity

Authors: Claire JEAN-MISTRAL, Skandar BASROUR

Publication date: January 10, 2010

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2. Conversion principle

2.1 Resonant systems

Energy recovery from mechanical vibrations is based on the use of a resonant inertial system with a natural frequency equal to or close to that of the excitation to which the system is subjected. There are usually three families of generators :

  • resonant generators with speed-proportional damping ;

  • resonant generators with a damping force having a constant amplitude opposite to the displacement;

  • parametric generators...

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Conversion principle