Design and Investigation of a Nonlinear Damper Based on Energy Dissipation through Shock and Dry Friction to Suppress Critical Self-Excited Vibrations in Drilling Systems

<div>Influence of the mass-normalized modal amplitude at the damper (a) and the rotational inertia of the damper (b) on the equivalent damping ratio.</div>

Shock and Vibration

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Figure 11

Figure 11: Design and Investigation of a Nonlinear Damper Based on Energy Dissipation through Shock and Dry Friction to Suppress Critical Self-Excited Vibrations in Drilling Systems 

Figure 11 | Design and Investigation of a Nonlinear Damper Based on Energy Dissipation through Shock and Dry Friction to Suppress Critical Self-Excited Vibrations in Drilling Systems 