Rotating cylinders Halbach array Halbach array - Wikipedia, the free encyclopedia
permanent magnets used as weights on a rotating pendulum and also used as the drive mechanism to change the centre of mass and reduce the amplitude, and also in a conjunction with a belt to push the mass up, increasing the potential energy.
The Magnus effect Magnus effect - Wikipedia, the free encyclopedia
may help the parameter change of the oscillator and reduce damping.
Parametric oscillator - Wikipedia, the free encyclopedia
We may use a frictionless magnetic bed for the drive cylinder at bottom and it may work as a storage kinetic energy flywheel, impairing the inwards push of the next weight entering the rotating repulsion magnetic field.
Perpetual motion machine of the third kind?