Design and Performance Analysis of Composite Low-frequency Vibration Isolator

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (19) : 232-235.

Wu Ting1 WANG Lin-xiang2

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Abstract

In the current paper, a hybrid vibration isolator is proposed by combining the quasi-zero-stiffness principle with the inerter. The inerter is employed to increase the effective mass for the isolator while the quasi-zero-stiffness part is to decrease the dynamic stiffness of the restoring elements. A superelastic shape memory alloy spring is integrated into the device. Low-frequency vibration isolation mechanism is specified. Force transmission ratio is analyzed and simulated. It is shown by simulation that the proposed vibration isolator could have a resonant frequency lower than 1 Hz. The influence of parameters on the system response are discussed.

Key words

Quasi-zero-stiffness / Inerter / superelasticity / Low-frequency vibration

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Wu Ting1 WANG Lin-xiang2 . Design and Performance Analysis of Composite Low-frequency Vibration Isolator[J]. Journal of Vibration and Shock, 2017, 36(19): 232-235

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