A composite tower damper device

Abstract

The invention discloses a composite tower damper device, which is installed in a fan tower, and the device comprises: a damping unit arranged on a platform where the damping unit is arranged; and several flat piezoelectric power generation devices are arranged on the outer wall of the damping unit , and the flat-plate piezoelectric power generation device is fixedly connected to the wall of the tower; the damping unit includes several liquid dampers; the liquid damper is equipped with damping liquid, and the liquid damper is equipped with a cantilever piezoelectric power generation device, the damping unit also includes a rectifier stabilizer, a storage battery, and a wire, and the wire electrically connects the storage battery, the rectifier stabilizer, the cantilever piezoelectric generator, and the flat piezoelectric generator. The present invention utilizes the flat piezoelectric generator and the cantilever piezoelectric generator to convert the vibration energy of the fan tower into electric energy and store it in the storage battery, further enhances the resistance effect of the damper, and uses the vibration energy of the tower to generate electricity.

Description

technical field [0001] The invention relates to the technical field of fan vibration reduction control, in particular to a composite tower damper device. Background technique [0002] At present, the vibration damping device of high tower structure is commonly used as frequency modulation liquid damper (TLD), which usually adopts a circular TLD and installs it on the top of the tower, which includes a circular tube, damping net and viscous fluid. The dynamic side force generated by the liquid in the circular ring pipe during the sloshing process provides vibration reduction, which can effectively enhance the anti-vibration performance of the high tower system; [0003] A frequency-modulated mass damper (TMD) is usually composed of a spring, a mass block and a viscous damper. Its working principle is that when the main structure deforms, the inertial force on the mass block is applied to the main structure in reverse, thereby inhibiting the main structure. Vibration, widely ...

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Problems solved by technology

[0004] The liquid tunable damper (TLD) of the shallow water theory increases the structural damping through the large sloshing of the liquid surface. If the liquid height is unreasonable, the vibration damping effect will be poor; if the liquid is less viscous, the damping effect will also be worse. Moreover, the resistance effect of a single liquid damper is small, and multiple TLDs need to be added at the same time to produce a better resistance effect

[0005] Mass FM damper (TMD) is very sensitive to the drift of the natural frequency of the controlled structure. Even if the frequency drift is very small, the vibration damping effect of TMD will drop suddenly; generally speaking, the greater the mass and stroke of TMD, the better its control effect The better, in the actual design, the traditional single TMD system will bring additional mass to the tower, which will increase the heavy burden of the tower body, and the stroke of TMD will often be limited

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