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Proceedings Paper

A passive self-tuning nonlinear resonator with beam-slider structure
Author(s): Liuding Yu; Lihua Tang; Liuyang Xiong; Tiejun Yang; Brian R. Mace
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Paper Abstract

This work investigates the interaction between a nonlinear slender clamped-clamped beam and a freely movable mass during the passive self-tuning process. The experimental and numerical results illustrate that the hardening nonlinearity caused by the beam stretch strain can broaden the frequency bandwidth. When the amplitude and curvature of the beam at the slider location are large enough, the slider could be driven to move from the side towards the centre and stop around the centre. The slider’s movement, in turn, changes the beam-slider structure’s mass distribution that shifts the frequency response functions to the lower frequency range. During this interaction between the beam and slider, the high energy orbit could be captured with amplified vibration response. Because the slider is driven by the beam vibration, the self-tuning process does not require external energy. Such a beam-slider structure could be used for the design of nonlinear energy harvesting system with the capability of passive self-tuning to acquire large amplitude vibration and thus higher efficiency.

Paper Details

Date Published: 21 March 2019
PDF: 8 pages
Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109670K (21 March 2019); doi: 10.1117/12.2514359
Show Author Affiliations
Liuding Yu, Harbin Engineering Univ. (China)
Univ. of Auckland (New Zealand)
Lihua Tang, The Univ. of Auckland (New Zealand)
Liuyang Xiong, The Univ. of Auckland (New Zealand)
Tiejun Yang, Harbin Engineering Univ. (China)
Brian R. Mace, The Univ. of Auckland (New Zealand)

Published in SPIE Proceedings Vol. 10967:
Active and Passive Smart Structures and Integrated Systems XIII
Alper Erturk, Editor(s)

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