Active Hybrid Control Algorithm with Sky-Hook Damping and Lead-Lag Phase Compensation for Multi-DOFs Ultra-Low Frequency Active Vibration Isolation System

<div>The cross-power spectrum curves: the red line for passive, the green line for active (feedback only), and the blue line for active (AHC). (a)<i> X</i> direction under different conditions, (b) the enlarged view of some curves in (a), (c)<i> Y</i> direction under different conditions, (d) the enlarged view of some curves in (c), (e)<i> Z</i> direction under different conditions, and (f) the enlarged view of some curves in (e).</div>

Shock and Vibration

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Figure 19

Figure 19: Active Hybrid Control Algorithm with Sky-Hook Damping and Lead-Lag Phase Compensation for Multi-DOFs Ultra-Low Frequency Active Vibration Isolation System 

Figure 19 | Active Hybrid Control Algorithm with Sky-Hook Damping and Lead-Lag Phase Compensation for Multi-DOFs Ultra-Low Frequency Active Vibration Isolation System 