In this paper, a design of an energy harvesting device which converts a translational relative motion to an oscillatory motion via stick-slip phenomenon is presented. In this design, an L-shape cantilever is used as an energy converter, the tip of which is rubbed by a linearly moving rubber pad. The induced stick-slip motion produces a relatively high frequency oscillation in the middle part of the cantilever during the stick phase, which is then converted to the electrical energy via a piezoelectric element attached on the cantilever surface. Testing of a proof-of-concept prototype reveals how the linear relative motion induces the stick-slip motion and the high frequency oscillation of the cantilever. The dependence of the stick-slip frequency on the design parameters is preliminary studied. Then, the load resistance optimization and the maximum output power are discussed, and the energy efficiency which is defined as the ratio of the output electrical energy to the input mechanical work during the rubbing motion is evaluated.
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ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5825-7
PROCEEDINGS PAPER
Stick-Slip Energy Harvesting: A Preliminary Study
Arata Masuda,
Arata Masuda
Kyoto Institute of Technology, Sakyo-ku, Japan
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Chisato Sawai
Chisato Sawai
Kyoto Institute of Technology, Sakyo-ku, Japan
Search for other works by this author on:
Arata Masuda
Kyoto Institute of Technology, Sakyo-ku, Japan
Chisato Sawai
Kyoto Institute of Technology, Sakyo-ku, Japan
Paper No:
SMASIS2017-3994, V001T07A016; 6 pages
Published Online:
November 9, 2017
Citation
Masuda, A, & Sawai, C. "Stick-Slip Energy Harvesting: A Preliminary Study." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. Snowbird, Utah, USA. September 18–20, 2017. V001T07A016. ASME. https://doi.org/10.1115/SMASIS2017-3994
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