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Design Considerations for Optimal Absorption of Energy from a Vibration Source by an Array of Harvesters

机译：一系列收割机从振动源最佳吸收能量的设计注意事项

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Dynamic vibration absorption is a passive technique for suppressing unintended vibrations. Optimal absorption of energy from a vibration source entails the determination of absorber parameters such as resonant frequency and damping. In the present work, we propose a method to obtain these parameters for a generic case of large number of identical vibration absorbers placed on a vibration source. We discuss an iterative procedure to find the optimum absorber resonant frequency and damping by minimizing the total energy absorbed by the system. We also analyse the influence of damping of the entire set of absorbers on the total energy absorbed and the effect of the absorber mass on the bandwidth of absorption. The proposed method is verified by analysing the response of a set of cantilever absorber beams placed on a vibrating cantilever plate. The resonant frequencies of the system with different number of absorbers are verified experimentally. We identify, using our method, the absorber mass, resonant frequency and damping of the absorber at which significant amount of energy supplied to the system flows into absorbers. A potential application of this method in the context of energy harvesting is the design of harvesters for a given vibration source. We emphasize through our work that monitoring energies in the system and optimizing them is both rational and vital for designing multiple harvesters that absorb energy from a given vibration source optimally.
机译：动态振动吸收是一种抑制意外振动的被动技术。从振动源最佳吸收能量需要确定吸收器参数，例如共振频率和阻尼。在当前的工作中，我们提出了一种方法，用于在大量放置在振动源上的相同减振器的一般情况下获得这些参数。我们讨论了一个迭代过程，以通过最小化系统吸收的总能量来找到最佳的吸收器共振频率和阻尼。我们还分析了整套吸收器的阻尼对吸收的总能量的影响以及吸收器质量对吸收带宽的影响。通过分析放置在振动悬臂板上的一组悬臂吸收梁的响应，验证了所提出的方法。实验验证了具有不同数量吸收器的系统的谐振频率。使用我们的方法，我们确定了吸收器的质量，吸收器的共振频率和阻尼，在该处吸收大量的能量供应到系统中。该方法在能量收集方面的潜在应用是为给定振动源设计收集器。我们通过工作强调，监视系统中的能量并对其进行优化对于设计多个可最佳吸收给定振动源能量的收割机既合理又至关重要。

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