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>Time response of the damper (physical) and structure (modal) without shocks, using a CMS-reduced model (a) and a modal-reduced model (b).</div>

Shock and Vibration

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Figure 4

Figure 4: 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 4 | 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 