Robust Sampled-Data 𝐻_∞ Control for Vibration Mitigation of Offshore Platforms with Missing Measurements

Table 1

Parameters of the offshore platform system with an AMD mechanism.

Description	Symbol	Value	Unit
Length of the offshore platform		249	m
Diameter of the cylinder		1.83	m
Mass of the offshore platform		7,825,307	kg
Mass of the AMD		78,253	kg
Natural frequency of the offshore platform		2.0466	rad/s
Natural frequency of the AMD		2.0074	rad/s
Damping ration of the offshore platform		0.02	—
Damping ration of the AMD		0.2	—