Full rotational pendulum...

[iacob alex]

...is a new concept (you can see on net...)for the extraction of energy from sea waves.

   The concept is based on the conversion of vertical motion,into rotational motion,by means of a parametric pendulum operating in full rotational mode.

   The idea is to mount the pendulum pivot,above a floating structure,which will oscillate in the vertical plane,in response to sea waves excitations.

   The  vertical oscillations of the structure will generate the pendulum's rotational motion,providing an useful torque.

   A parametric oscillator,is a harmonic oscillator,whose parameters oscillates in time: a child on a swing,where periodically changing the child's center of gravity,causes the swing to oscillate.

   The varying of parameters drives the system,this is the  idea of a simple parametric pendulum.

   Why this topic?

   It's a plain image,so to simplify a possible first step for a PM.

  All the best! / Alex 

   

   

[iacob alex]

....."on paper" and his control , you can see at :  www.evert.de/eft410e.htm
If we can play continuous rotational pendulum , due to an oscillatory floating  fulcrum , why not to apply the same idea ( "on the waves" ) for gravity fall / unbalance ?!
     Al_ex