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Vibration reduction by switch shunting of piezoelectric elements: nonlinear energy transfers between modes and optimization

机译:通过压电元件的开关分流来减少振动:模式之间的非线性能量传递和优化

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This paper deals with the reduction of structural vibrations by means of switch shunting tech-niques on piezoelectric elements. The main advantage of these techniques compared to resonant (inductive) shunts is that they are self-adapting on a wide band of frequencies, while requiring little energy to perform. A modal expansion of a general electromechanical system is proposed. Then, different simulations are made with ldof. and N dof. models, in order to assess the performance and how the non-linearities of the system can affect it. These results are compared to experimental tests.
机译:本文通过利用压电元件上的开关分流技术来减少结构振动。与谐振(电感)分流器相比,这些技术的主要优势在于它们可以在很宽的频率范围内自适应,而执行所需的能量却很少。提出了一种通用机电系统的模态扩展。然后,使用ldof进行不同的模拟。和N自由度模型,以评估性能以及系统的非线性如何影响它。将这些结果与实验测试进行比较。

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