Research Article

Vibration and Damping Analysis of Composite Fiber Reinforced Wind Blade with Viscoelastic Damping Control

Table 3

Comparison of natural frequencies and loss factors of composite laminated clamped free shell structure.

Mode Damping factor of viscoelastic material = 0.2 Damping factor of viscoelastic material = 0.4 Damping factor of viscoelastic material = 0.8
Freq.
(Hz)
Freq.
(Hz)
Freq.
(Hz)

184.870.0374784.890.0749084.960.14942
2123.900.02619124.090.05192124.820.10031
3211.620.04058211.520.08134211.150.16404
4311.410.02369311.450.04736311.600.09449
5335.050.02570335.100.05140335.310.10267
6388.390.03696388.380.07393388.330.14797