发表机构
Missouri University of Science and Technology（密苏里科技大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文研究再生脉冲制动能否增强谐波激励振荡器的被动能量采集，通过解析推导和数值仿真证明适当定时的制动可产生净能量增益，并确定最优制动时刻为谐波激励过零点。
AI 中文摘要
本文研究了再生脉冲制动能否增强谐波激励振荡器中的被动能量采集。脉冲制动事件直接提取动能，同时诱发一个瞬态，该瞬态改变了后续的被动采集过程。分析表明，适当定时的制动可以产生相对于单独被动采集的净能量增益。制动诱发的瞬态通过解析方法推导得出，并用于获得在任意有限制动后时间范围内采集能量增益的精确表达式，以及正增益的条件和最优制动时刻。相应的无限时间范围分析表明，最优制动发生在谐波激励的过零点，且完全制动使增益最大化。数值结果进一步表明，有限时间范围的采集能量增益可以超过其无限时间范围的值。使用短时高增益制动的仿真与分析结果高度吻合，支持了所提方法在能量采集应用中的潜力。
英文摘要
This paper investigates whether regenerative impulsive braking can enhance passive energy harvesting in harmonically forced oscillators. An impulsive braking event directly extracts kinetic energy while simultaneously inducing a transient that alters subsequent passive harvesting. The analysis shows that suitably timed braking can produce a net energy gain over passive harvesting alone. The braking-induced transient is derived analytically and used to obtain an exact expression for the harvested-energy gain over an arbitrary finite post-braking horizon, together with conditions for positive gain and the optimal braking instant. The corresponding infinite-horizon analysis shows that optimal braking occurs at zero crossings of the harmonic excitation, with complete braking maximizing the gain. Numerical results further show that the finite-horizon harvested-energy gain can exceed its infinite-horizon value. Simulations using short-duration high-gain braking closely match analysis, supporting potential of the proposed approach for energy-harvesting applications.
