Inerter-like devices used for vibration isolation: A historical perspective
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2021-01-01
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Kuhnert, Willian M. [UNESP]
Gonçalves, Paulo J. Paupitz [UNESP]
Ledezma-Ramirez, Diego F.
Brennan, Michael J. [UNESP]
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Recently, a lot of attention has been given to a mechanical device known as the inerter. It is a mechanical component that can be compared to a capacitor with two ungrounded terminals in the mechanical-electrical systems analogy. In this paper, it is shown that although the concept of an inerter as a separate mechanical element is relatively new, there are several well-established vibration isolation systems that exhibit similar behavior to a simple lumped parameter system containing an inerter. Through a review of the literature, a link is established between the old and new ideas. Furthermore, a comparison between the systems is carried out using the quantities of mechanical impedance and displacement transmissibility. The advantages and disadvantages of using the inerter in vibration isolation are discussed, and a simple way of improving the high-frequency performance without severely degrading the low-frequency performance is described.
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Journal of the Franklin Institute, v. 358, n. 1, p. 1070-1086, 2021.