Research Article
Optimum Tuning of a Gyroscopic Vibration Absorber Using Coupled Gyroscopes for Vibration Control of a Vertical Cantilever Beam
Table 1
Physical properties of the system.
| Symbol | Numerical values | Description |
| | 210 × 109 N/m2 | Young’s modulus | | 100 mm | Beam thickness | | 150 mm | Beam width | | 5 m | Length of the beam | | 7850 kg/m3 | Density of the beam | | 2000 kg | Tip mass | | 0.2 m2 | Ratio of tip mass moment of inertia | | 400 kg⋅m2 | Tip mass moment of inertia | | 1.25 × 10−5 m4 | Geometrical moment of inertia of beam | | 9.81 m/s2 | Gravitational acceleration | | 0.015 m2 | Area of cross section of beam | | N⋅m⋅s/rad | Damping coefficient | | N⋅m/rad | Stiffness of torsion spring | | 50 kg | Disk mass of gyroscope | | 0.2 m | Radius of disk | | 1 kg⋅m2 | Rotary inertia of disk | | 0.5 kg⋅m2 | Mass moment of inertia of disk | | 0–30000 rpm | Rotating speed of disk |
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