Thruster apparatus and method for reducing fluid-induced motions of and stresses within an offshore platform

摘要

Thrusters in communication with a feedback control system are provided on a cylindrical offshore marine member, such as a spar, for reducing and/or controlling vortex-induced-vibrations, low-frequency drift oscillations due to random waves, and low-frequency wind induced resonant oscillations. The thrusters are provided thrust instruction from the feedback control system based on marine member displacement and current velocity.