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Title

Assessment of the Role of Structural Nonlinearity in Galloping Energy Harvesters

Authors

[ 1 ] Instytut Mechaniki Stosowanej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | [ D ] phd student | [ P ] employee

Scientific discipline (Law 2.0)

[2.8] Mechanical engineering

Year of publication

2021

Published in

Vibrations in Physical Systems

Journal year: 2021 | Journal volume: vol. 32 | Journal number: no. 2

Article type

scientific article

Publication language

english

Keywords
EN
  • energy harvesting
  • aeroelasticity
  • self-induced vibration
  • galloping
Abstract

EN The study compares different variants of aeroelastic energy harvesters due to the power they generate. For this purpose, models of devices with different stiffness characteristics were prepared: linear, nonlinear, with combined stiffness and bistable. Then, using the authorial procedure, analytical expressions that describe the power of each system were determined and the influence of individual parameters on this quantity was examined. By way of optimization, the system parameters have been selected in such a way that, regardless of the flow velocity, each of them generates the maximum possible power. Based on the results obtained in this way, the advisability of using a device with combined stiffness and bistable characteristics was rejected. Moreover, it was pointed out that the linear system would provide greater efficiency for lower flow velocities.

Pages (from - to)

2021209-1 - 2021209-13

DOI

10.21008/j.0860-6897.2021.2.09

URL

https://vibsys.put.poznan.pl/_journal/2021-32-2/articles/vps_2021209.pdf

Comments

Article Number: 2021209

License type

CC BY (attribution alone)

Open Access Mode

open journal

Open Access Text Version

final published version

Full text of article

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Access level to full text

public

Points of MNiSW / journal

70.0

Points of MNiSW / journal in years 2017-2021

70.0

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