Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Daniel Geiyer"'
Autor:
Jeffrey L. Kauffman, Daniel Geiyer
Publikováno v:
SPIE Proceedings.
Research in broadband nonlinear piezoelectric energy harvesting has gained traction in recent years as resonant, linear harvesters do not operate optimally in dynamic environments. By placing a linear harvester in a symmetric magnetic field, a nonlin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::255920d6ff0f17f6069b22d6522b7d0b
https://doi.org/10.1117/12.2222125
https://doi.org/10.1117/12.2222125
Publikováno v:
Journal of Dynamic Systems, Measurement, and Control. 138
Load-following in solid oxide fuel cells (SOFCs), hybridized with an ultracapacitor for energy storage, refers to an operating mode where the fuel cell's generated power follows the variable power demand, delivering the total demanded power at steady
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b689a05b1b1ab3f220ea03bbef58195c
https://doi.org/10.1115/1.4032318
https://doi.org/10.1115/1.4032318
Autor:
Daniel Geiyer, Jeffrey L. Kauffman
Publikováno v:
Volume 8: 27th Conference on Mechanical Vibration and Noise.
Linear cantilevered piezoelectric energy harvesters typically rely on excitation around a resonance frequency for peak operation. Compounding the problem, typical ambient environments either vary dynamically in time or possess energy distributed acro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1afd45942ca7b370c49475a0ba8cfb03
https://doi.org/10.1115/detc2015-46654
https://doi.org/10.1115/detc2015-46654
Autor:
Jeffrey L. Kauffman, Daniel Geiyer
Publikováno v:
SPIE Proceedings.
Linear cantilevered piezoelectric energy harvesters do not typically operate efficiently through a large span of excitation frequencies. Beam theory dictates optimum displacement at resonance excitation; however, typical environments evolve and vary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04bf8555c3d140e6cd8d87c90e5739c2
https://doi.org/10.1117/12.2084048
https://doi.org/10.1117/12.2084048
Autor:
Jeffrey L. Kauffman, Daniel Geiyer
Publikováno v:
Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting.
Component miniaturization and reduced power requirements in sensors have enabled growth in the field of low-power ambient vibration energy harvesting. This work aims to increase bandwidth and power output beyond current techniques by inducing chaotic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28176c4c2d670119d4afbdf1b497bda0
https://doi.org/10.1115/smasis2014-7425
https://doi.org/10.1115/smasis2014-7425
Autor:
Xiaoqi Bao, Zensheu Chang, Mircea Badescu, Phillip Allen, Patrick Ostlund, Stewart Sherrit, Yoseph Bar-Cohen, Daniel Geiyer
Publikováno v:
SPIE Proceedings.
One of the first piezoelectric motor designs with significant rotational speeds was outlined by Barth. This device used extensional piezoelectric elements to produce a time varying force at a distance r from the center of a centrally supported disk.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4efbba856055965877851ea0fb5762
https://doi.org/10.1117/12.880496
https://doi.org/10.1117/12.880496