Oscillation suppression and control system for a floating...

Details Oscillation suppression and control system for a floating... Oscillation suppression and control system for a floating...

2005-06-28

2005-06-28

Sotelo, Jesus D. (Department: 3617)

Ships

Floating platform

Multiple leg

C114S293000

Reexamination Certificate

active

06910438

ABSTRACT:
In accordance with the present invention, an oscillation suppression system is provided to inhibit vertical and rotational resonance of a floating platform. The oscillation suppression system includes energy absorption chambers mounted in or about the hull of the floating platform. The chambers may be separately attached or integrated as part of the structure. The chambers are comprised of gas in an upper portion, and water mass in a lower portion. The chambers are closed or partially vented at the upper ends and open at their bottom ends. The enclosed gas in the upper portion of the chamber acts as a gas spring reacting against the floating platform and the water mass. The suppression of resonant oscillations of the floating platform system is accomplished through the gas-spring pressure changes acting on the floating platform system in phase opposition to external forces.

REFERENCES:
patent: 4176614 (1979-12-01), Goss et al.
patent: 4864958 (1989-09-01), Belinsky

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