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.
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