7 results about "Seakeeping" patented technology

The invention provides a parallel hydraulic interconnection damping catamaran which comprises an upper cabin, a hydraulic interconnection suspension and a floating body which are sequentially arranged from top to bottom, and the whole structure is symmetrically distributed in the front view and is trapezoidal in the left view. The hydraulic interconnection suspension forms two side waists of a trapezoid, the upper cabin body is connected with the transverse rocker arm through the hydraulic cylinder set, the front transverse rocker arm is hinged to the longitudinal rocker arm through the radial spherical plain bearing, the longitudinal rocker arm is hinged to the floating body through the radial spherical plain bearing, and the rear transverse rocker arm is directly connected with the floating body. The front hydraulic cylinder set and the rear hydraulic cylinder set stretch out and draw back to achieve pitching motion, the left hydraulic cylinder set and the right hydraulic cylinder set stretch out and draw back alternately to drive the floating bodies on the two sides to move in a staggered mode, heeling of the ship body is achieved, and therefore three-freedom-degree vibration reduction compensation of heaving, pitching and heeling is jointly completed. Through the eight-cylinder interconnected hydraulic loop design and the special connection pair layout, wave multi-degree-of-freedom impact is effectively decoupled, the seakeeping and stability of the ship are remarkably improved, and the device is suitable for special rescue scenes such as shallow water areas and complex channels.

The invention relates to the technical field of ship intelligent navigation and energy management, in particular to a two-stage meteorological route optimization method based on a ship seakeeping model. The method comprises the following steps: constructing a three-degree-of-freedom ship seakeeping model, comprehensively considering the motion characteristics of surging, swaying and yawing, carrying out discretization processing on meteorological parameters and ship motion states, generating a corresponding state node set and a meteorological state set, calculating motion primitive sets under different meteorological conditions, and constructing a state grid space, so as to obtain a seakeeping state of the ship. Optimal path planning is carried out through a heuristic search algorithm, and a navigation path with the lowest energy consumption is obtained. Further, segmentation and speed optimization are performed on the path segment, and the optimal propulsive force and speed profile are output in combination with acceleration constraint. According to the method, collaborative optimization of route planning and dynamic performance is realized, and route optimization calculation efficiency and intelligence and practicability of route planning are remarkably improved.

This invention provides a collaborative optimization method for the main hydraulic cylinder system of a super-large piling vessel adapted for deep-sea applications, belonging to the field of marine engineering equipment technology. This invention constructs a five-dimensional collaborative system encompassing navigation, shallow water, energy conservation, seakeeping, and safety, including: multi-scenario requirement analysis; navigation-operational height collaboration, enabling rapid folding of the piling frame via quick-change interfaces; shallow water-buoyancy adaptation collaboration, linking the buoyancy tank to adjust draft and optimize hydraulic cylinder thrust; power grid-hydraulic cylinder energy efficiency collaboration, maintaining the main engine's economical load through energy storage regulation; seakeeping-attitude stability collaboration, linking anti-roll tanks and dampers to suppress roll; safety-lifespan early warning collaboration, predicting component lifespan based on digital twins; and full-condition benefit assessment and parameter iteration. This invention achieves dynamic linkage between the main hydraulic cylinder and various subsystems, solving the pain points of poor adaptability and insufficient collaboration in traditional equipment across all scenarios, significantly improving operational efficiency, energy conservation, and safety.

The application discloses a kind of unmanned ship cluster design methods of convergence, comprising the following steps: step 1, with the purpose of reducing total resistance and improving seakeeping when unmanned ship cluster is navigated in formation combination mode, design ship type;Step 2, design the connecting device of unmanned ship cluster;Step 3, design parallel type modular ship micro-grid;Step 4, design multi-boat power system and dynamics model;Step 5, design the overall tracking control strategy of unmanned ship cluster.The application proposes new type splicing drag reduction ship type, hull power integrated connecting device and other key innovations, and demonstrates and verifies the functions such as autonomous splicing, water patrol, target trapping of unmanned ship cluster through ship model test.

The utility model provides a wind, light and wave energy comprehensive offshore power generation platform, which comprises a floating platform, a mooring system, a wind power generation module, an oscillating floater type wave energy power generation module and a photovoltaic power generation module, the floating platform is of a circular structure, a groove cabin is arranged in the middle of the top of the floating platform, and the wind power generation module is centrally erected on the floating platform; the oscillating floater type wave energy power generation module is arranged in the middle under the floating platform, and solar photovoltaic panels of the photovoltaic power generation module are uniformly laid around the center of the floating platform; comprehensive, efficient, reliable and stable utilization of multi-energy complementation of offshore wind energy, wave energy and solar energy is achieved; the impact load of waves on the platform is reduced; wind direction limitation is broken through, and aerial work requirements are reduced; the rolling and pitching resistance is improved, the seakeeping performance of the floating platform is improved, and the overturning resistance is improved; the seakeeping performance of the platform and the safety and self-storage performance under the extreme storm condition are improved, the utilization rate of offshore renewable energy sources is increased, and the offshore operation risk and the installation cost are reduced.

The utility model relates to the field of ship energy efficiency control, and provides a free self-propelled ship model motion distributed control device, which comprises a trailer end comprising a power supply module, a ship model locking device and a sensing module for monitoring the state of a ship model; the power supply module is used for supplying power to the ship model locking device, the rudder driver and the paddle driver; the ship model locking device comprises a locking cantilever connected with the ship model body, a locking motor for controlling the locking cantilever, and a locking device driver for controlling the locking motor; the ship model end comprises a ship model body, a rudder driver and a paddle driver, wherein the rudder driver and the paddle driver control the ship model body. The ship model body comprises a plurality of rudders and propellers. The method is used for controlling the navigation state of the free self-propelled ship model in the seakeeping test of the free self-propelled ship model and simulating the motion of the ship model under the real sea condition.

The invention discloses a ship form design method and system for a high-performance large-load river-sea direct ship, and relates to the field of ship design, and the method comprises the steps: obtaining characteristic parameters corresponding to a mother ship form of the river-sea direct ship; the characteristic parameters are ship type parameters influencing ship type seakeeping and maneuverability; determining constraint conditions based on the characteristic parameters; generating a plurality of groups of feature parameter schemes based on the constraint conditions; constructing a ship type geometric model according to the multiple groups of characteristic parameter schemes, and performing numerical simulation to obtain related parameter data about river-sea direct maneuverability and seakeeping; and according to the related parameter data, based on a maneuverability prediction model and a seakeeping prediction model, a multi-objective optimization algorithm is used for optimization, and ship type parameters of the optimal river-river-sea direct ship type are obtained. According to the method, the contradiction between seakeeping and maneuverability can be effectively balanced, and the engineering adaptability is improved.