Flow induced vibration energy harvester with a nested bluff-body structure

摘要

The present invention relates to a fluid-induced energy harvester having a nested structure, arranged parallel to each other at intervals, each installed on a moving path through which fluid moves, and a fixed end fixed to one side of the structure and the flow of the fluid A pair of outer cantilevers having a free end that is tilted within a predetermined angular range around the fixed end by the; An outer bluff body having a friction surface that rubs against the fluid so as to implement at least one movement of a wave organic vibration or a galloping operation, and coupled to a free end side of the outer cantilevers; An inner cantilever disposed in an inner space between the outer bluff body and the outer cantilevers, and having a fixed end fixed to the structure and a free end tilted around the fixed end; An inner bluff body disposed in the inner space and coupled to the inner cantilever; And an energy generating member coupled to the outer cantilevers and the inner cantilever and generating electric energy by deformation according to tilting of the cantilever.