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Rezaniakolaei, Alireza
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Publications (11/11 displayed)
- 2022Online Condition Monitoring of Rotating Machines by Self-Powered Piezoelectric Transducer from Real-Time Experimental Investigationscitations
- 2021The investigation of viscous and structural damping for piezoelectric energy harvesters using only time-domain voltage measurementscitations
- 2020Design Optimization of Waste Heat Recovery System around Cement Rotary Kilncitations
- 2020A comprehensive electromechanically coupled model for non-uniform piezoelectric energy harvesting composite laminatescitations
- 2020A broadband macro-fiber-composite piezoelectric energy harvester for higher energy conversion from practical wideband vibrationscitations
- 2019Temperature Control of IGBTs by Thermoelectric Coolercitations
- 2019On the effect of driving amplitude, frequency and frequency-amplitude interaction on piezoelectric generated power for MFC unimorph
- 2019An Experimental Study on Macro Piezoceramic Fiber Composites for Energy Harvestingcitations
- 2017Experimental Investigation of Zinc Antimonide Thin Film Thermoelectric Element over Wide Range of Operating Conditionscitations
- 2016Experimental Investigation of Zinc Antimonide Thin Films under Different Thermal Boundary Conditions
- 2016Power Generation by Zinc Antimonide Thin Film under Various Load Resistances at its Critical Operating Temperature
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document
On the effect of driving amplitude, frequency and frequency-amplitude interaction on piezoelectric generated power for MFC unimorph
Abstract
In this paper, an experimental study on effects of frequency, amplitude and frequency-amplitude interaction of base excitation on vibration piezoelectric energy harvesters is presented. To do so, a unimorph piezoelectric harvester made from macro fiber composite (MFC) piezoelectric layer is tested. A two-factor factorial design with two replications is considered, in which frequency and amplitude of driving vibration are the treatment factors. For changing treatment factors, an appropriate frequency range is considered to include the device fundamental frequency and three excitation levels are considered. In order to investigate the effects of treatment factors on the power output, a linear model is considered. Results show that increasing amplitude of excitation vibration causes a stiffness softening behavior of the piezoelectric oscillatory beam leading to reduction in the harvester natural frequency. In addition, from the frequency-amplitude interaction analysis, output power is much more sensitive to vibration amplitude for driving frequencies near the harvester natural frequency compared to frequencies far away from the harvester natural frequency.