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Date of Publication:2022-10-10

Journal:压电与声光

Affiliation of Author(s):电子信息与电气工程学部

Volume:39

Issue:4

Page Number:544-548

ISSN No.:1004-2474

Abstract:In order to improve the generation power of piezoelectric floor,the piezoelectric disk or square structure is divided into blocks of cantilever beam.The finite element static analysis shows that the output power of the triangle cantilever beam is 20 times and 7 times of the piezoelectric square and disk respectively in the case of the same bearing and material volume.The generating performances of the triangle cantilever beam piezeoelectric florr units with the vertex angles of 60°,90° and 120° are compared and analyzed.It is found that these 3 kinds of piezoelectric floor generate same output power when the piezoelectric plates and substrate thickness are reduced to make the trample displacement same;when the piezoelectric plate and substrate thickness are the same,the triangle piezoelectric blocks with vertex angle of 60° generate the maximum power.Six triangular piezoelectric cantilevers with vertex angle of 60° are used for making the piezoelectric floor units,and two light emitting diodes are lightened in turn by hand pressing.

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