VORTEX-INDUCED VIBRATION BY LIFT-GENERATING PLANT AND PARALLELOGRAM QUADRIC CRANK MECHANISM

摘要

PURPOSE: A lift force power generation apparatus by using a parallelogram folding-in-four device and vortex induced vibration is provided to induce a vibromotive force by generating an angle of flow attack on a lifting surface by rotational vibration of a cylinder which is linked to the font and the rear side of the lifting surface by a vortex induced force in which fluid flow acts on the cylinder, thereby generating useful energy. CONSTITUTION: A lift force power generation apparatus by using a parallelogram folding-in-four device and vortex induced vibration includes a vortex-induced vibration cylinder(10), a supporting shaft(20), a hydrofoil(30), a translation link(80), a supporting frame(60), a translation spring(90), and a power plant(70). The vortex-induced vibration cylinder is vertically vibrated by a vortex which is generated according to the separation of the vortex from the surface which is caused by the flow speed of the sea or/and a river. The supporting shaft is delivered with the vertical vibration of the vortex-induced vibration cylinder. The hydrofoil performs a translational rotation by a lift force which is generated by the vibration of the vortex-induced vibration cylinder and the flow speed, and amplifies the vibration. The translation link is delivered with the vibration of the hydrofoil by being connected to one end part of the hydrofoil by using a rotary shaft(31) and to the other end part of the hydro foil by using a hinge. The translation spring has one side which is connected to the translation link to elastically support the translation link. The supporting frame is supported by being hinge-connected to the other side of the translation link and by being linked with the other side of a supporting spring. The power plant is connected to a hinge shaft of the translation link which is hinge-connected to the supporting frame, and converts kinetic energy of the vortex vibration, which is delivered through the translation link, into electrical energy.