Marine stabilized platform based on annular flow momentum moment stabilization

Abstract

The invention discloses an offshore stabilized platform based on annular flow momentum moment stabilization. An upper cabin, a centralized controller, a battery system, a buoyancy adjusting system, an upper propeller, a depth sensor, a lower cabin, a lower propeller, a Doppler log, a momentum wheel active control stabilization device and a plurality of dynamic positioning propellers form a structural body; the inertial navigation is fixed at the gravity center position of the structural body; the centralized controller is electrically connected with the battery system, the buoyancy adjusting system, the upper thruster, the depth sensor, the lower thruster, the momentum wheel active control stabilization device, the inertial navigation system, the Doppler log and the multiple dynamic positioning thrusters. The invention discloses an offshore stabilized platform based on annular flow momentum moment stabilization, which has a full-band six-degree-of-freedom motion control capability, namely, a control capability of balancing buoyancy, a control capability of resisting low-frequency longitudinal, transverse and vertical motion, and a control capability of resisting high-frequency pitching and rolling motion.

Description

technical field [0001] The present invention relates to the technical field of marine anti-rolling devices, and more specifically relates to an offshore stable platform based on circulation moment moment anti-rolling. Background technique [0002] With the proposal of my country's marine power strategy, marine exploration and resource development activities facing the complex marine environment in deep and open seas urgently need stable marine platforms as support. Due to the development of dynamic positioning technology, the position control capability of offshore platforms has made great progress, but there are still many deficiencies in the attitude control capability. At present, the anti-rolling and stabilizing methods of offshore platforms mainly include two anti-rolling methods: fin stabilizer and water tank stabilizer, but due to the limitation of working principle, there are certain defects in both. [0003] Ordinary fin stabilizers are affected by the speed of the...

AI Technical Summary

Problems solved by technology

At present, there are mainly two anti-rolling methods for offshore platforms: fin stabilizer and water tank stabilizer. However, due to the limitation of the working principle, there are certain defects in both.

[0003] Ordinary fin stabilizers are affected by the speed of the ship at zero or low speed, and cannot effectively stabilize the ship, and there are relatively large fin areas required, increased appendage resistance, and rapid decrease in anti-roll efficiency with the increase of sea conditions The anti-rolling water tank has the advantages of simple structure and low cost, but it takes up a lot of space, and because it can only work passively under the action of sea waves, it can only have good anti-rolling near the ship's harmonic roll frequency effect, adapting to the lower range of wave frequencies

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