Fig. 7: Vibration isolation performance of a QZS metamaterial.
From: A compact quasi-zero stiffness metamaterial based on monolithic shells for vibration isolation
a A metamaterial sample consisting of four QZS units (2 × 2 units). b Measured static force-displacement curves of a QZS unit (maximum load denoted as F0) and the metamaterial with 2 × 2 units. c Experimentally measured transmittance curve of the metamaterial, for which a mass of 1100 g is added. d–f Measured dynamic behavior: vibration velocities of the base (input) and mass (output) are detected at frequencies 1 Hz, 3 Hz, and 10 Hz, respectively.
