Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Schematic of the proposed VEH
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Photograph of the assembled system
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Mechanical lumped model of the VEH
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Algorithm flowchart
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Power harvesting electronics. Signals are shown with dashed lines.
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Frequency response of the secondary beam and the tunable beam at various tip mass positions. The secondary beam response is given as a single curve due to its negligible hysteresis.
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: The frequency response with and without tuning. The sweep rate is 1 Hz/min. The sleep period for the adaptive response is 4 s.
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: The effect of sweep rate on tuning performance
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Storage capacitor voltage during a frequency up-sweep and down-sweep between 49 Hz and 56 Hz
Date of download: 10/5/2017 Copyright © ASME. All rights reserved. From: A Self-Sufficient and Frequency Tunable Piezoelectric Vibration Energy Harvester J. Vib. Acoust. 2016;139(1):011013-011013-8. doi:10.1115/1.4034775 Figure Legend: Storage capacitor voltage time response in the discharge-recharge experiment