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AssigneesBoard of Regents, The University of Texas System, University of Puerto Rico
InventorsStefano Leonardi, David Dooner
Estimating the term…
An apparatus for attenuating or counterbalancing external load fluctuations on a propeller driver machine is disclosed. In one embodiment a set of non-circular gears coupled to a rotor shaft or to the gearbox of the machine are further coupled to an auxiliary flywheel. The shapes and inertial characteristics of the non-circular gears and the inertial characteristics of the auxiliary flywheel are designed to counterbalance cyclic load fluctuations experienced by the rotor shaft. In another embodiment, an inertial element is flexibly attached to a rotor shaft by a set of flexible elements of the machine wherein the moment of inertia of the inertial element and the stiffness of the flexible elements are selected to absorb and attenuate external load fluctuations on the rotor shaft. The propeller driven machine may be a HAWG type wind turbine and the external load fluctuations caused by wind shear and tower shadowing effects.
A propeller driven machine comprising:
A propeller driven machine comprising:
A propeller driven machine comprising:
Dependencies are inferred from the claim text.