Research Article

Eliminating the Fluid-Induced Vibration and Improving the Stability of the Rotor/Seal System Using the Inerter-Based Dynamic Vibration Absorber

Table 2

The comparison results of the instability threshold speed.

εbOptimized ζaOptimized σaOptimized σbωiIncrement

DVA0.050.992.687
IDVAc10.010.051.002.696+0.33%
IDVAc20.100.051.002.504−6.81%
IDVAc30.030.050.980.952.759+2.68%
IDVAc40.090.031.010.762.728+1.53%
IDVAc50.090.140.931.792.730+1.60%
IDVAc60.040.010.981.032.755+2.53%