Abstract
Energy harvesting device involves capturing energy from the environment and it is increasingly crucial in the crisis of greenhouse effect nowadays. Equipping bicycles with many types of shock absorbers can enhance the riding comfort. Additionally, an embedded energy harvesting device will gain much benefit beyond the sports. This study applied the finite element method to analyze the components of nonlinear magnetic spring. The analytical simulations were conducted to analyze the electromagnetic effect in ANSYS©/Emag software. A model equipped with nonlinear magnetic springs was constructed to absorb the impact energy. Nevertheless, the piezoelectric components were used to capture the piezoelectric effect current caused by the compressive stress. A series of simulations were conducted, such as changing the diameter of the magnet, electric coil width, and the position of the coils. Moreover, with those finite element analysis data, the Taguchi method L9(34) orthogonal arrays were applied to determine the optimal parametric dimensions of the electromagnetic and piezoelectric assemblies for maximizing the captured kinetic energy and power transformation. The results could assist the suspension manufacturers to innovate their design for energy harvesting and impact absorbing.
Highlights
Energy harvesting refers to scavenging energy from the environment and it is increasingly crucial
For the sake of the increasing efficiency of electronics and microactuators, those improvements enable many devices to be powered in a few milliwatts
According to the optimized Taguchi analytic results of the piezoelectric material (A3B3C2D1), we found that the best levels of the vibration frequency, resonant impedance, capacitance value, and material thickness values are 6.5 kHz, 400 O, 20,000 PF, and 0.2 mm, respectively
Summary
Energy harvesting refers to scavenging energy from the environment and it is increasingly crucial. The major components analyzed in this study were the piezoelectric material, the magnets, and the magnetic flux density of the coils.
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