Table 2: Resonance parameters of shroud structure damper.

Positive pressure ( m) (N)Resonance frequency (Hz)Equivalent viscous damping (N·s/m)Equivalent stiffness (N/s)

5.62.378472.52715252651062646
160.868282.44517156592815978
800.173242.3772435236913719903
1600.086652.3662795412927308918
3200.043292.3603010767054505874
8000.017332.357312018506136020960