The phenomenon of panel flutter and the effect of additional acoustic black hole on panel (IMAGE)

Tsinghua University Press

The phenomenon of panel flutter and the effect of additional acoustic black hole on panel

Caption

Panel flutter is a dynamic aeroelastic instability of external skin panels exposed to supersonic airflow. Coupled aeroelastic analysis reveals that attaching an acoustic black hole (ABH) structure to the leeward side enhances energy dissipation and modal redistribution, effectively mitigating aerodynamic-induced vibrations. This demonstrates the great potential of ABH structures in panel flutter suppression.

Credit

Chinese Journal of Aeronautics

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