A passive self-tuning nonlinear resonator with beam-slider structure

Liuding Yu; Lihua Tang; Liuyang Xiong; Tiejun Yang; Brian R. Mace

doi:10.1117/12.2514359

21 March 2019 A passive self-tuning nonlinear resonator with beam-slider structure

Liuding Yu, Lihua Tang, Liuyang Xiong, Tiejun Yang, Brian R. Mace

Proceedings Volume 10967, Active and Passive Smart Structures and Integrated Systems XIII; 109670K (2019) https://doi.org/10.1117/12.2514359
Event: SPIE Smart Structures + Nondestructive Evaluation, 2019, Denver, Colorado, United States

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.

Conference Presentation

Citation Download Citation

Liuding Yu, Lihua Tang, Liuyang Xiong, Tiejun Yang, and Brian R. Mace "A passive self-tuning nonlinear resonator with beam-slider structure", Proc. SPIE 10967, Active and Passive Smart Structures and Integrated Systems XIII, 109670K (21 March 2019); https://doi.org/10.1117/12.2514359

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