High-stability deep-sea buoy platform and an oscillation control method thereof

An oscillation control method for a high-stability deep-sea buoy platform, wherein the high-stability deep-sea buoy platform comprises:

• a mast tube housing an attitude sensor used to monitor a tilt angle of the deep-sea buoy platform;
• a plurality of buoyancy tubes symmetrically and equally spaced around a mast tube;
• the buoyancy tube comprising an elastic float and a water tank;
• a cross-section of the elastic float is ring-shaped;
• the elastic float being fitted around an outer side of an upper part of the water tank;
• the water tank is cylindrical and an interior of the water tank is divided into an upper layer and a lower layer, and the lower layer containing ballast water;
• each water tank is connected to other water tanks via pipelines, each of the pipelines equipped with a flow valve;
• and
• a damping plate is horizontally connected between bottoms of adjacent water tanks;
• wherein in a vertical stationary state, the volume of ballast water in the water tank is less than or equal to half of the volume of the water tank;
• the height of the mast tube is 2 to 5 times the height of the buoyancy tube;
• wherein the number of buoyancy tubes is four and corresponding numbers of elastic floats and water tanks is four;
• each water tank is connected to the other three water tanks via the pipelines:
• the pipelines include four first pipelines forming a square, and two vertical and connected second pipelines;
• the first pipelines are used to connect two water tanks on the same side, and the second pipelines are used to connect two water tanks on opposite corners;
• a connection chamber is located at an intersection of the two second pipelines:
• the connection chamber is connected to the four water tanks via the two second pipelines;
• wherein the high-stability deep-sea buoy platform further comprises a control system, which is used to control a valve opening of the flow valve based on the tilt angle of the deep-sea buoy platform monitored by the attitude sensor:
• the oscillation control method for the high-stability deep-sea buoy platform comprising:
• defining a side where two water tanks on the same edge are located as a first side, and defining a side corresponding to the first side where the other two water tanks are located as a second side;
• a first stage:
• the deep-sea buoy platform swaying from a vertical stationary state to a titled position on the first side;
• the ballast water in the two water tanks on the second side flowing through the pipelines into the two water tanks on the first side in a tilted manner:
• when the attitude sensor detecting an increase in the tilt angle of the deep-sea buoy platform, the attitude sensor sending a signal to the control system;
• the control system reducing the valve opening of the flow valves, decreasing the volume and speed of the ballast water flowing through the pipelines;
• a second stage:
• the deep-sea buoy platform swaying back from the maximum tilt angle towards the second side to a vertical state;
• the ballast water inside the two water tanks on the second side flowing through the pipelines towards the two water tank on the first side in a titled manner;
• when the attitude sensor detecting a decrease in the tilt angle of the deep-sea buoy platform, the attitude sensor sending a signal to the control system;
• the control system increasing the valve opening of the flow valves, increasing the volume and speed of the ballast water flowing through the pipelines;
• a third stage:
• the deep-sea buoy platform swaying from a vertical stationary state to a titled position on the second side;
• the ballast water in the two water tanks on the first side flowing through the pipelines into the two water tanks on the second side in a tilted manner;
• when the attitude sensor detecting an increase in the tilt angle of the deep-sea buoy platform, the attitude sensor sending a signal to the control system;
• the control system reduces the valve opening of the flow valves, decreasing the volume and speed of the ballast water flowing through the pipelines;
• a fourth stage:
• the deep-sea buoy platform swaying back from the maximum tilt angle towards the first side to a vertical state;
• the ballast water inside the two water tanks on the first side flowing through the pipelines towards the two water tank on the second side in a titled manner:
• when the attitude sensor detecting a decrease in the tilt angle of the deep-sea buoy platform, the attitude sensor sending a signal to the control system;
• the control system increases the valve opening of the flow valves, increasing the volume and speed of the ballast water flowing through the pipelines.