Nonlinear tristable piezoelectric energy harvesters

来源 :The 4th International Conference on Dynamics, Vibration and | 被引量 : 0次 | 上传用户：xr6088

【摘要】

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【作者】

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Shengxi Zhou Junyi Cao Zezhou Wang Shengsheng Liu Wei Wang

【机构】

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Beihang University, Beijing, PR China State Key L

【出处】

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The 4th International Conference on Dynamics, Vibration and

【发表日期】

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2014年8期

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This paper originally presents the nonlinear tristable piezoelectric energy harvester (TPEH) to enhance the vibration energy harvesting.The equivalent nonlinear restoring force of the TPEH is experimentally identified as a high order polynomial which depends on the relative spacing and locations between the external magnets and adherent magnets in the end of the piezoelectric cantilever beam.The TPEH has five equilibrium positions,however, the total number of equilibrium positions of monostable harvesters and bistable harvesters is one and three respectively.

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Nonlinear tristable piezoelectric energy harvesters

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