  This work demonstrates preliminary results on energy harvesting from a
linearly stable flutter-type system with circulatory friction forces. Harmonic
external forcing is applied to study the energy flow in the steady sliding
configuration. In certain parameter ranges negative excitation work is observed
where the external forcing allows to pull part of the friction energy out of
the system and thus makes energy harvesting possible. Studies reveal that this
behavior is largely independent of the flutter point and thus that it is
primarily controlled by the excitation. Contrary to existing energy harvesting
approaches for such systems, this approach uses external forcing in the
linearly stable regime of the oscillator which allows to control vibrations and
harvest energy on demand.
