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Test device and test method for series staggered piezoelectric energy harvesters based on wind-induced vibration

A technology of electric energy collection and wind-induced vibration, which is applied in the direction of measuring devices, machine/structural component testing, aerodynamic testing, etc., can solve the problems of poor versatility and achieve strong versatility, clear steps, and accuracy of test results high effect

Active Publication Date: 2020-07-14
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] With the rapid development of piezoelectric energy harvesters, the corresponding test devices and methods still have the problem of poor versatility. Therefore, a wind-induced vibration-based test device and method for staggered series piezoelectric energy harvesters is provided. The test method has high practical value and significance

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  • Test device and test method for series staggered piezoelectric energy harvesters based on wind-induced vibration
  • Test device and test method for series staggered piezoelectric energy harvesters based on wind-induced vibration

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Embodiment Construction

[0050]The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0051] According to the present invention, a wind-induced vibration-based staggered piezoelectric energy harvester test device includes a wind tunnel 1 and a collection assembly; the collection assembly includes a beam, a slideable track 3, an end mass 5, a cantilever beam 6. Piezoelectric fiber sheet 9, external load resistance and voltage measuring device; the wind tunnel 1 is arranged at one end of the acquisition assembly; the crossbeam is arranged on the slidable track 3; one end of the cantilever be...

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Abstract

The invention provides a test device and method for a wind-actuated vibration based cross-row piezoelectric energy collector. The device comprises a wind tunnel (1) and a collection assembly, and the collection assembly comprises a crossbeam, a slidable track (3), an end-portion mass block (5), a cantilever beam (6), a piezoelectric fiber sheet (9), an external load resistor and a voltage measuring device; the wind tunnel (1) is arranged at one end of the collection assembly; the crossbeam is arranged on the slidable track (3); one end of the cantilever beam (6) is connected with the crossbeam via a connecting rod (7), and the other end of the cantilever beam (6) is connected with the end-portion mass block (5) via the piezoelectric fiber sheet (9); and the external load resistor is electrically connected with the piezoelectric fiber sheet (9) to form a loop, and the voltage measuring device is electrically connected with the loop.

Description

technical field [0001] The present invention relates to the field of vibration energy collection, in particular, to a testing device and method for a wind-induced vibration-based staggered piezoelectric energy harvester, and in particular to a wind-induced vibration-based staggered series piezoelectric energy harvester with adjustable spacing. Energy collector testing device and testing method. Background technique [0002] In recent years, research in the field of vibration energy harvesting has attracted extensive attention from scholars at home and abroad. A piezoelectric energy harvester is a device that converts the mechanical energy of vibrations in the surrounding environment into electrical energy. Air flow is the most basic phenomenon in nature. The piezoelectric energy generating device adopts the cantilever beam (6) structure, and under the action of wind-induced vibration, the wind energy is converted into electrical energy in the form of higher energy density, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01M9/06H02N2/18
CPCG01M9/06G01R19/0084H02N2/185H02N2/186
Inventor 颜志淼谭婷
Owner SHANGHAI JIAOTONG UNIV