Broadband VIV energy collecting device based on variable mass and efficiency verification method thereof

A technology of energy collection and quality change, which is applied in electromechanical devices, mechanical energy control, electrical components, etc., can solve the problems of lack of effective verification methods for energy collection, difficult quantitative evaluation of energy collection efficiency of devices, and low energy collection efficiency. The energy effect and collection efficiency are continuously stable, the power generation effect is increased, and the structural design is reasonable and simple.

Pending Publication Date: 2021-10-29
HARBIN INST OF TECH AT WEIHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the current vortex-induced vibration energy harvesting device changes in flow rate, the locking interval changes accordingly, resulting in the problem of low energy collection efficiency, and thus l

Method used

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  • Broadband VIV energy collecting device based on variable mass and efficiency verification method thereof
  • Broadband VIV energy collecting device based on variable mass and efficiency verification method thereof
  • Broadband VIV energy collecting device based on variable mass and efficiency verification method thereof

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Example Embodiment

[0033] DETAILED DESCRIPTION Figures 1 to 12 As shown, the specific embodiment is employed as follows: The present embodiment includes a gantry 1, an electromagnetic variable mass device 2, an electromagnetic power generating mechanism 3, a plurality of zenectic mechanisms 4, and a plurality of upper elastic members 5, the gantry 1 For the 匚 character frame; the electromagnetic variable quality device 2 includes a cover 2-1, an upper cylinder 2-2, a longitudinal connecting post 2-3, and a moving strip 2-4, longitudinal connecting post 2-3 vertical disposed on the gantry At the upper side of the gantry 1, there is a plurality of zepant mechanisms 4, respectively, and the top of the longitudinal connection column 2-3 is provided with an upper cylinder 2-2, and the upper cylinder 2-2 is detachable. The cover 2-1, a plurality of electromagnetic coils 7 are disposed in the upper cylinder 2-2, and a plurality of electromagnetic coils 7 are formed, and several ferromagnetic pumps 20 are d...

Example Embodiment

[0036] DETAILED DESCRIPTION OF THE INVENTION 2: The present embodiment is further defined by the specific implementation, including base 1-1 and two T-shaped columns 1-2, base 1-1 horizontal setting, two T-T-shaped column 1- 2 vertical side is disposed on both ends of the base 1-1; the longitudinal connection column 2-3 is between the two T-type columns 1-2, each T-shaped column 1-2 is fixed to the base 1-1 fixed connection Each corresponding to each of the two ends of each T-shaped column 1-2 is provided with a church mechanism 4.

Example Embodiment

[0037] DETAILED DESCRIPTION OF THE INVENTION 3: The present embodiment is further defined by the specific implementation of one or two, and the upper cylinder 2-2 is provided with two connecting members 6, and the upper cylinder 2-2 is disposed between two connectors 6, each The connecting member 6 includes a connection block 6-1 and a first light post 6-2, and one end of the connecting block 6-1 is fixed to the outer wall of the upper cylinder 2-2, and the other end of the connecting block 6-1 has the first The through hole 19, one end of the first light column 6-2 is fixedly coupled to one of the two T-shaped columns 1-2, and the other end of the first light column 6-2 passes through the first through hole. 19 is fixed to another T-shaped column 1-2 in two T-shaped columns 1-2, and the upper cylinder 2-2 reciprocates in the longitudinal direction of the first light column 6-2 through the connecting block 6-1.

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Abstract

The invention discloses a broadband VIV energy collecting device based on variable mass and an efficiency verification method thereof. According to an existing vortex-induced vibration energy collecting device, a locking interval changes along with the change of the flow velocity, and consequently the energy collecting efficiency is low. According to the invention, a plurality of galloping mechanisms are arranged on the two sides of a rack correspondingly, an upper cylinder is coaxially arranged at the top end of a longitudinal connecting column, a sealing cover is detachably connected to the top end of the upper cylinder, an electromagnetic coil is arranged in the upper cylinder, the upper cylinder is connected with the two ends of the rack through an upper elastic piece, a moving strip is arranged at the lower end of the longitudinal connecting column, and the input end of an electromagnetic power generation mechanism is connected with the moving strip. According to the efficiency verification method, firstly, a galloping energy vibration equation model is established, an ordinary differential equation set is solved based on a finite difference method, calculation and analysis are carried out based on analysis data according to basic data of the broadband VIV energy collecting device, a theoretical index value is obtained, and the theoretical index value is compared with an actual index value of the broadband VIV energy collecting device based on the variable mass, so that the sensitivity verification process is realized.

Description

Technical field: [0001] The invention specifically relates to a variable-mass-based broadband VIV energy harvesting device and an efficiency verification method thereof. Background technique: [0002] With the consumption of fossil energy, the problem of environmental pollution is increasing day by day. The development and use of renewable energy has become an alternative. Due to its high energy density, abundant reserves and renewable characteristics, ocean current energy is currently a hot field of renewable energy utilization. Vortex-induced vibration (VIV) is a common phenomenon in the field of marine engineering. Under the action of incoming flow, vortices are alternately shed on the surface of the structure, and the vortex acts on the cylinder to cause structural vibration. However, when the current vortex-induced vibration energy harvesting device changes in flow rate, the locking interval changes accordingly, resulting in the problem of low energy collection effici...

Claims

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Application Information

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IPC IPC(8): H02K7/18F03B13/00
CPCH02K7/1853F03B13/00F05B2220/706
Inventor 高云刘磊柴盛林潘港辉姜泽成
Owner HARBIN INST OF TECH AT WEIHAI
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