标题： 通过可调电路增强双稳态振动能量收集器：对比分析 显示英文标题

标题： Enhancing Bistable Vibration Energy Harvesters with Tunable Circuits: A Comparative Analysis

摘要： 本文分析了非线性电路对双稳态振动能量收集器的影响。我们首先引入双稳态振动能量收集器的解析模型，并证明非线性电路的影响可以通过两个因素来表征：电诱导阻尼和电诱导刚度。随后，我们研究这些因素如何影响收集器的功率-频率响应。我们的发现表明，电诱导阻尼显著影响双稳态振动能量收集器的动力学，而电诱导刚度的影响微乎其微，这与连接到非线性电路的线性收集器的行为有显著差异。之后，我们对文献中已广泛记录的不同非线性电路连接的双稳态能量收集器进行了比较研究。我们的分析表明，在大多数情况下，并联同步开关感应电感电路因其能够最大化电诱导阻尼而表现出更优的性能。这些比较评估和结论是在我们提出的模型框架内进行评估的，并与从线性振动能量收集器获得的结果进行对比。本文最后提供的比较图提供了选择双稳态能量收集器最优电路的定量依据，同时加深了我们对与非线性电路耦合的非线性收集器复杂动力学的理解。 显示英文摘要

摘要： In this article, we present an analysis of the effects of nonlinear circuits on bistable vibration energy harvesters. We begin by introducing an analytical model for bistable vibration energy harvesters and demonstrate that the impact of nonlinear circuits can be characterized by two factors: electrically-induced damping and electrically-induced stiffness. Subsequently, we investigate how these factors influence the power-frequency response of the harvester. Our findings reveal that electrically-induced damping significantly affects the bistable vibration energy harvester dynamics, whereas electrically-induced stiffness has minimal impact, which is a notable difference from the behavior of linear harvesters connected to nonlinear circuits. Thereafter, we conduct a comparative study of bistable energy harvesters connected to different nonlinear circuits already well documented in the literature. Our analysis demonstrates that, in most cases, the parallel synchronized switch harvesting on inductor circuit yields superior performance due to its ability to maximize electrically-induced damping. These comparative assessments and conclusions are evaluated within the framework of our proposed models and are contrasted with results obtained from linear vibration energy harvesters. The derived comparison maps presented at the end of this paper offer quantitative justification for selecting the optimal circuit for bistable energy harvesters, while deepening our comprehension of the intricate dynamics associated with nonlinear harvesters coupled with nonlinear circuits.