Investigation on Low Frequency Bandgap of Coupled Double Beam with Quasi-Zero Stiffness for Power Transformer Vibration Control

<div>Bandgap structure of double-beam metamaterial: (a) real parts of wave number pairs, (b) imaginary parts of wave number pairs, (c) dispersion of double-beam metamaterial, and (d) minimum absolute value of attenuation constants.</div>

Shock and Vibration

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Figure 9

Figure 9: Investigation on Low Frequency Bandgap of Coupled Double Beam with Quasi-Zero Stiffness for Power Transformer Vibration Control 