頁籤選單縮合
題名 | Based on Tire Pressure Monitor System Analysis to Design Energy Harvester= |
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作者 | Wang, Yu-jen; Chien, Li; |
期刊 | Journal of Science and Innovation |
出版日期 | 20131000 |
卷期 | 3:4 2013.10[民102.10] |
頁次 | 頁129-138 |
分類號 | 471.3 |
語文 | eng |
關鍵詞 | Tire pressure monitor system; Energy harvester; Novel suitably-weighted pendulum; |
英文摘要 | This paper proposes the design of a novel suitably-weighted pendulum, which oscillates due to the periodic change of the tangential component of gravity, to harvest kinetic energy from a rotating wheel. Unlike traditional energy-harvesting devices, which have a fixed natural frequency, when the speed of the car increases, the centripetal acceleration of the rotating wheel also increases the pendulum’s natural frequency of oscillation. By employing a suitably-designed weight, the natural frequency of the pendulum can match with the rotating frequency of the wheel at any speed, and the pendulum oscillates at a large angle and angular velocity to generate a large amount of power. The models of power generation were derived by using Faraday's law of induction and Lorentz force law, which were followed by the numerical simulation performed to verify the correctness with experiments. The non-linear dynamic behaviors have been discussed considering the characteristic length, variable electromagnetic damping and wheel rotating speed. The optimum total generalized damping to obtain a large amount of power converted is approximately 1.6N-s/kg/m to 3.0N-s/kg/m and is possible to be the power source for TPMS. |
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