Fig. 1. 3D model and its main structural dimensions

Fig. 2. The flat pressure force applied to a single cell

Fig. 3. The shear force applied to a single cell

Fig. 4. Simulated finite element model

Fig. 5. Change curves of the total internal energy and total kinetic energy during loading

Fig. 6. Pressure-displacement curve of the simulated model under flat pressure

Fig. 7. Shear force-shear displacement curve and local structural necking displacement nephogram

Fig. 8. Cloud image of the basic-frequency mode

Fig. 9. Input curves of harmonic excitation acceleration

Fig. 10. z-direction acceleration response curve of sampling point under harmonic excitation

Fig. 11. Random vibration excitation input PSD curve

Fig. 12. PSD response curve in the z-direction of a sampling point