Abstract
This paper proposes a novel energy harvesting floor structure using piezoelectric elements for converting energy from human steps into electricity. The piezoelectric energy harvesting structure was constructed by a force amplification mechanism and a double-layer squeezing structure in which piezoelectric beams were deployed. The generated electrical voltage and output power were investigated in practical conditions under different strokes and step frequencies. The maximum peak-to-peak voltage was found to be 51.2 V at a stroke of 5 mm and a step frequency of 1.81 Hz. In addition, the corresponding output power for a single piezoelectric beam was tested to be 134.2 μW, demonstrating the potential of harvesting energy from the pedestrians for powering low-power electronic devices.
Highlights
In recent years, with the development of intelligent devices and wireless sensor networks, supplying power to low-power electronic devices has attracted increasing interest [1,2,3]
This paper proposed a novel energy harvesting floor structure utilizing a force amplification mechanism, a double-layer squeezing structure, and piezoelectric clamped–clamped beams
The energy harvesting floor structure is built using a force amplification mechanism based on linkage mechanism theory
Summary
With the development of intelligent devices and wireless sensor networks, supplying power to low-power electronic devices has attracted increasing interest [1,2,3]. Utilized a piezoelectric frequency up-converting mechanism power and total output energy produced by one footstep on the tile were 1.24 mW and 3.49 mJ, in the design But of energy harvesting floor. Kuang et al [15] mechanisms designed a sandwiched piezoelectric energy harvester with a force. Designedtoaamplify sandwiched piezoelectric energy harvester a force amplification amplification mechanism the load and a substrate structure to with increase the load capacity. Utilizing a force amplification paper proposed a novelelectricity energy harvesting floor structure. This paper proposed a novel energy harvesting floor structure utilizing a force amplification mechanism, a double-layer squeezing structure, and piezoelectric clamped–clamped beams. Whole mechanism designed provide enough elements stress to each each piezoelectric element and The to guarantee that the was deflections oftothe piezoelectric are piezoelectric and to virtue guarantee that the deflections thepiezoelectric piezoelectricbeams elements aredesigned within a within a safe element limit.
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