414 results about "Ballast" patented technology

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

The invention belongs to the technical field of ocean engineering and water electrolysis hydrogen production. In order to solve the problem that a traditional model is difficult to deal with dynamic sea conditions, a platform-environment coupling digital twin model is constructed, multi-source monitoring data is fused, and platform motion response is predicted through deep reinforcement learning. And generating anti-storm strategies such as ballast water regulation based on a prediction result, and realizing real-time optimization. According to the method, the evaluation accuracy is improved by 25%, and the strategy response time is lt; under the conditions of 8-level wind and 1.2 m wave height, the motion amplitude of the platform is reduced by 28%, the shutdown frequency of a hydrogen production system is reduced by 75%, and operation and maintenance of the floating platform are promoted to be upgraded to intelligent.

The invention discloses a ship ballast water pressure loading and unloading control system based on a large model. The ship ballast water pressure loading and unloading control system is used for improving intelligence and efficiency of ship ballast water operation. According to the system, firstly, data such as ship navigation states, ballast water tank water levels and ship body postures are collected in real time through a multi-source sensor; analyzing and reasoning the collected data in the trained large neural network model; the large model outputs an optimal control strategy for ballast water loading and unloading, and the decision control module generates a specific execution instruction to drive a valve or a pump or other devices to complete ballast unloading actions. The system is also provided with a man-machine cooperation interface and a feedback mechanism, and the model can be finely adjusted and optimized according to a sailor instruction or real-time feedback information. Compared with a traditional control method, the method has the advantages that ship stability, energy efficiency and environmental protection requirements are fused through a large model, a ballast scheme can be automatically adjusted, rapid and efficient ballast replacement is achieved, and ship navigation safety and economical efficiency are remarkably improved.

The invention discloses a deep sea mineral lifting unmanned transportation system. According to the system, an unmanned carrier-intelligent execution-elastic scheduling framework is constructed, and the system comprises four modules including unmanned carrying equipment, a communication network system, a scheduling control center and a support safeguard system. The unmanned carrying equipment realizes mineral transportation based on buoyancy driving; the communication network adopts a layered redundant architecture of underwater sound OFDM and a laser emergency link, and high-reliability communication and centimeter-level positioning are guaranteed; the scheduling control center improves the operation efficiency through intelligent task allocation and trajectory planning; the support and guarantee system integrates energy management, digital twin monitoring and emergency response mechanisms. The operation process adopts a mode of mainly unmanned autonomous and assisted by remote monitoring, and the links of ballast diving, acousto-optic docking, buoyancy regulation and control, mother ship dynamic unloading and the like are covered. The deep-sea mineral lifting efficiency, maneuverability and reliability are remarkably improved, and core technical support is provided for deep-sea resource development.

The invention relates to the technical field of ocean engineering operation motion modeling and control, and particularly discloses a method and a system for calculating influence of dynamic response of a separation supporting device and a buffer coupling device on a ship pose in a floating support installation process. The method comprises the following steps: acquiring initial position information of a separation support device and a buffer coupling device at a previous moment; acquiring vertical position and attitude information of the dynamic positioning ship and the upper module; calculating the supporting force of the separation supporting device and the buffer coupling device at the current moment; calculating the vertical position and attitude information of the upper module and the dynamic positioning ship at the current moment based on the supporting force and the external ballast water load; outputting relevant parameters and judging whether the installation is completed or not. According to the method, a multi-degree-of-freedom coupling dynamic model is constructed, high-precision real-time simulation of device dynamic response and ship motion attitude in the continuous unsteady-state load transfer process is realized, key parameter monitoring and risk early warning are provided for floating mounting operation, and the operation safety and efficiency are improved.

The invention provides a ship ballast water system fault diagnosis model establishment method, belongs to the technical field of ship ballast water systems, and adopts a random noise data enhancement and maximum and minimum value standardization preprocessing method to improve data quality. Designing a CNN-I nformer hybrid architecture, fusing a probability sparse self-attention mechanism and distillation operation to extract time sequence features, and establishing a double-layer game optimization framework including an adaptive spiral flight sparrow search algorithm to perform joint optimization on model hyper-parameters; a softmax classifier is adopted to realize accurate identification of five states of sea chest filter filth blockage, ballast water pump bearing wear, valve blockage, pipeline leakage and system normal operation, and generalization ability and practicability of the model are ensured through an early stop strategy and multi-index performance evaluation. The technical problems that the ship ballast water system fault diagnosis precision is insufficient and the calculation complexity is too high are solved.

The invention discloses a ship intelligent control system and method and a ship, and belongs to the technical field of ships. The intelligent ship control system comprises an energy efficiency management subsystem, a video management subsystem and a comprehensive management center. Wherein the comprehensive management center comprises a navigation equipment management module, a ballast calculation module, an alarm monitoring module and a network and monitoring module, and is used for receiving navigation data information, ballast water quantity control information, monitoring information of a ship main engine, a generator, a power supply, gas and fuel oil, network transmission information and video monitoring information during navigation of a ship; the information is analyzed and stored, and a control instruction is generated to intelligently control the ship; and the comprehensive management center carries out information distribution so as to carry out ship energy efficiency control and video monitoring control. According to the technical scheme, respective control and coordinated control of multiple functions of the ship can be realized, the control is more intelligent, the control reasonability is improved, and the navigation safety of the ship is improved.

The invention discloses an immersed tube butt joint installation method and system based on laser ranging and visual recognition, and belongs to the technical field of ocean engineering. The method comprises the steps that a laser target set is installed on the butt joint end face of an installed pipe joint, and a laser positioning set and a laser projector are installed on the butt joint end face of a to-be-installed pipe joint; after the to-be-installed pipe joint sinks, the laser positioning group is started to measure the distance to the target group in real time, meanwhile, parallel light beams are emitted to the other end face of the to-be-installed pipe joint through the laser projector, and the position of a light spot is collected through visual recognition to obtain posture deviation; the distance and deviation data are fused, the optimal pose of the pipe joint to be installed is calculated through an optimization algorithm, and then the offset of the end face center and the axis deflection angle are obtained; and according to the parameters, a regulation and control instruction is generated, and the ballast water system and the winch system are controlled to adjust the posture of the to-be-installed pipe joint till accurate butt joint is achieved. According to the invention, full-underwater, high-precision and automatic immersed tube butt joint is realized, and the dependence on an overwater measuring tower and a GPS (Global Positioning System) is eliminated.

The present invention is a method for controlling the ballast posture of a curved section sunk pipe, comprising: obtaining the planar position of the centroid of the pipe section by theoretically calculating the shape of the pipe section; leveling the pipe section so that the center of gravity and the centroid of the pipe section are in the same straight line; then calculating the planar position of the centroid of each water tank based on the shape and position of each water tank, and calculating the loading ratio of each water tank; performing ballasting according to the loading ratio in the leveled state to see whether balance is maintained; performing ballasting according to the accurate loading ratio of each water tank so that the center of gravity position of the pipe section is always kept in the same straight line with the centroid position of the pipe section, thereby ensuring the stability of the pipe section posture. The present invention calculates the shape and position of the ballast water tank of the curved section pipe section to obtain the theoretical ratio of the outer side of the arc to the inner side of the arc when the curved section pipe section is ballasted, verifies the ballast amount of the water tank during the sinking drill, and determines the loading during formal installation; ensures that the curved section pipe section maintains its posture when ballasted during formal installation through theoretical calculation and experimental verification.

The invention relates to the technical field of ship automatic control, and particularly discloses a self-adaptive adjusting system and method for a ship ballast water tank, and the system comprises a plurality of water level sensors, an attitude sensing module, a central controller and an execution mechanism which are installed in a distributed manner. And the central controller receives and fuses the multi-source sensing data by executing a stored computer program so as to solve real-time attitude parameters of the ship, compares the real-time attitude parameters with preset target attitude parameters, and generates a control instruction through an optimal distribution algorithm based on deviation. And the executing mechanism adjusts the water volume of each ballast water tank according to the instruction, so that the accurate control on the ship attitude is realized. By means of multi-source data fusion and intelligent optimization decision making, the problems that a traditional ballast water system is lagged in response and inaccurate in regulation and control are solved, and the safety and stability of a ship in the loading and unloading operation process are remarkably improved.

The invention relates to the technical field of ship stability control, discloses a ship stability control method and system, and introduces a real-time monitoring and adaptive adjustment mechanism for electrical parameters of a ballast pump driving motor. By acquiring the electrical parameter reference information of the ballast pump driving motor in the reference pipeline state, a dynamic performance evaluation reference is established. In the ballast water dispatching process, the system synchronously monitors the real-time electrical operation parameters of the ballast pump driving motor and compares the real-time electrical operation parameters with the reference information, and therefore whether the actual conveying efficiency of the ballast water system is lower than the expectation or not can be accurately judged in real time. The real-time judgment mechanism does not exist in the prior art, and the system can find and quantify the performance deviation in time.

The invention discloses a ship lock hydraulic structure crest elevation scheme recommendation method and device and electronic equipment, and relates to the field of ship lock building designing.The method comprises the steps that feature scales of different lockage ship types are obtained, the feature scales comprise freeboard heights of ships under the full-load condition or the ballast condition or the no-load condition, and based on a freight volume demand analysis result, the feature scales are calculated according to the freeboard heights of the ships under the full-load condition or the ballast condition or the no-load condition; determining the ship type proportion of each lockage ship type, calculating the crest elevation of the ship lock hydraulic structure under different working conditions by adopting a proportionality coefficient algorithm according to the ship type proportion and the freeboard height to obtain a plurality of planned recommendation schemes, and measuring and calculating the investment cost of the ship lock hydraulic structure in each planned recommendation scheme. And selecting the scheme with the lowest investment cost as a target crest elevation recommendation scheme. The technical problems that crest elevation of a ship lock hydraulic structure is determined in a fixed mode in the prior art, freeboard changes of a ship under different working conditions such as full load and ballast are not involved, sailors are inconvenient to go ashore, and the utilization rate is affected are solved.

The invention belongs to the technical field of ocean robots, and discloses a deformable ocean robot capable of cooperatively capturing wind energy and wave energy and a control method. The robot comprises a ship body, a sail module and an energy conversion module, wherein a main power supply and an auxiliary power supply are arranged in the ship body. The sail module is installed above the ship body through a hinge seat and can be unfolded to capture wind energy or folded to be stored. The energy conversion module comprises a deformable keel and a ballast, telescopic movement is achieved through a shear fork arm assembly, and wave energy is used for driving a power generator to generate power. The control method comprises an overwater state and an underwater state. In the overwater state, the sail and the keel module are unfolded to cooperatively capture wind energy and wave energy. The modules are folded in an underwater state to reduce resistance. A deformable structure and dual-energy capture are combined, the robot has the advantages of being high in energy utilization efficiency, high in environmental adaptability, long in endurance time and the like, the problems that a traditional ocean robot is limited in energy supply, insufficient in maneuverability and the like are solved, and the robot is suitable for long-term operation tasks such as ocean monitoring and resource exploration.

The utility model discloses an offshore wind power multifunctional observation buoy which comprises a truss, an observation platform arranged at the top of the truss and a ballast block arranged at the bottom of the truss, the ballast block is used for lowering the gravity center of the buoy, and the truss is used for providing buoyancy. And the ballast block is fixed on a seabed through a mooring cable. The buoy is long and thin in overall structure, and compared with a traditional buoy, the height difference between the gravity center and the buoyancy center of the buoy is greatly increased, so that the stability of the structure can be greatly improved, a platform can be provided for various ocean observation devices, and high-quality observation of ocean wind resources and ocean hydrology is achieved; the buoy is composed of the slender trusses and the ballast blocks, namely, the whole structure of the buoy extends to the deep position of water, and the wave load borne by the structure can be greatly reduced.

The utility model relates to ship transfer technology field, and the utility model discloses a ship ballast water receiving port and discharge port outboard quick docking structure, semicircular electric permanent magnetism sucking disc is fixedly arranged at the end of support, and with the steel flange fixedly covered on the outside wall of transfer joint of transfer pipe is set up magnetically, underwater camera is several, and all are fixedly arranged on semicircular electric permanent magnetism sucking disc, inflatable seal ring is fixedly covered on the outside wall of transfer joint of transfer pipe, and the outside wall of inflatable seal ring and the inboard wall of ballast water discharge pipe's port are set up and move and resist the contact, positioning locking hydraulic cylinder assembly sets up on the transfer joint of transfer pipe, guarantee the transfer head of transfer pipe and the discharge port of ballast water discharge pipe's docking precision and fast, and can fix transfer pipe in the ballast water discharge pipe outside the outboard, ensure that the outward propelling force that discharges ballast water in cabin can not move transfer pipe, guarantee that ballast water is safely transferred to the shore.

The invention relates to the technical field of ocean renewable energy utilization, and discloses a wave energy device anti-typhoon anchoring system which comprises a base floating body. The base floating body comprises an overwater floating body and an underwater floating body, the overwater floating body is connected to the top of the underwater floating body, and an opening is formed in the underwater floating body; the wave absorbing assembly is mounted on the water floating body; the density of the ballast floating body is greater than that of the seawater; the fixing assembly is installed on the base floating body, and the fixing assembly is used for fixing the ballast floating body located in the open hole; the first end of the rope is connected with the ballast floating body, and the second end of the rope is connected with the underwater floating body; and the anchoring assembly is connected with the underwater floating body. The invention aims to provide the anti-typhoon anchoring system of the wave energy device, which can reduce the anchoring load and ensure that the system can operate more stably and safely.

This invention discloses a cross-modal attribution method and system for ship energy efficiency anomalies based on a structural causal model, relating to the field of intelligent ship energy efficiency monitoring and anomaly causal attribution technology. The method includes: collecting multimodal ship energy efficiency monitoring data and mapping it to a multimodal operating condition heterogeneous graph; performing posterior completion of missing nodes based on structural equation constraints and historical samples of the same operating conditions; performing online Bayesian structural updates using speed, ballast draft, and sea state as trigger conditions to obtain an adaptive directed acyclic graph; applying causal intervention to the main engine load rate deviation and propeller propulsion efficiency deviation on the adaptive directed acyclic graph, calculating the causal contribution rate of each variable to the overall ship energy efficiency deviation, and generating cross-modal attribution results. This invention can improve the accuracy, interpretability, and targeted operation and maintenance handling of ship energy efficiency anomaly root cause localization.

The invention provides a floating fan active ballast system and a control method thereof. The system comprises a sensing module, a control module, an execution module, a power supply module, a shore-based remote control module and a communication module. The sensing module collects platform attitude and in-cabin liquid level data in real time through a multi-redundancy sensor; the control module adopts a triple-redundancy architecture and generates a load adjusting instruction in combination with an intelligent algorithm; the execution module realizes accurate allocation of ballast water through cooperative operation of a redundant water pump and a valve; the power supply module adopts a dual-power design to ensure continuous power supply; the shore-based remote control module realizes remote monitoring and maintenance; the communication module guarantees data interaction and instruction transmission. The single-point fault resistance of the system is improved through multi-redundancy design, high-precision and quick-response attitude adjustment is realized by combining intelligent and adaptive control, and meanwhile, multiple operation modes are integrated, so that the reliability and safety of the system in a complex marine environment are ensured.

The utility model relates to the technical field of underwater engineering, in particular to an underwater arranging and laying device under high flow speed. Comprising arrangement, and a first ballast part and a second ballast part are fixed to the two ends of the arrangement respectively; the winding drum is used for winding, arranging and rolling to form an arranged roll; a strip-shaped groove extending in the axial direction of the winding drum is formed in the surface of the winding drum. When the first ballasting piece is arranged on the winding drum to form the arrangement roll, the first ballasting piece is arranged in the groove, the first ballasting piece is used as the starting end, the space of the roll row is not occupied, and the roll row arranged in a large length can be achieved. The arrangement roll is arranged on the winding drum to be wound and arranged, and the second ballast piece is the tail end of the arrangement roll; during underwater arrangement, the two ends of the arrangement are pressed into mud, displacement or floating of the two ends of the arrangement at the high flow speed is prevented, the resistance to water flow and wave impact is enhanced, the later adjustment and correction time is shortened, the stability, safety and efficiency of underwater arrangement are improved, and meanwhile the maintenance cost and the influence on the environment are reduced.

According to the buffering control method for the berthing ball crane between the ships, a steel wire rope on a winch is output from the two sides of the winch, bypasses a buffering device and then is wound on a suspension arm on the other side of a base from one side of the base in the opposite direction, and through the cooperation of a first pulley block and a second pulley block, the steel wire rope is buffered. The steel wire rope is changed into the vertical direction from the horizontal direction and then is connected with the stopping ball in the vertical direction after bypassing the second pulley on the suspension arm, and meanwhile, the steel wire rope and the buffer device are always in a constant tension state under the action of the preset tension of the buffer device, so that the stopping ball is prevented from falling off when the stopping ball ascends or descends along with sea waves. The berthing ball can stably float on the sea surface to achieve sea wave compensation, so that the berthing stability between ships is improved, and meanwhile the situation that a steel wire rope for lifting the berthing ball is disengaged from a pulley block due to different tightness degrees caused by sea wave floating is avoided.

This invention provides a floating wind and wave energy integrated power generation device and its control method. The floating wind and wave energy integrated power generation device includes a floating base, a wind turbine, and a wave energy generation device. The wind turbine is mounted on the floating base. The wave energy generation device is mounted on the floating base and includes an electrically connected oscillating float and a wave energy storage device. The oscillating float includes an upper ballast chamber and a lower ballast chamber. Both the upper and lower ballast chambers include multiple ballast sub-cavities. Each ballast sub-cavity has a water inlet and a water outlet. A water inlet valve is provided at the water inlet, and a water outlet valve is provided at the water outlet. The technical solution provided in this application can solve the problems of low utilization rate and poor synergy of wind and wave energy in related technologies.

The application belongs to the field of offshore wind power, and discloses a typhoon-resistant composite wind turbine system, which comprises a foundation assembly, a tower tube arranged on the foundation assembly, and a wind turbine arranged on the tower tube. The foundation assembly comprises a central ballast water tank and a plurality of corner ballast water tanks arranged around the central ballast water tank. The central ballast water tank and the corner ballast water tanks are connected through a truss. The central ballast water tank is a hollow structure. The tower tube is inserted into the central ballast water tank and has a gap therebetween. The tower tube can move up and down and rotate horizontally relative to the central ballast water tank. A tower tube ballast water tank is arranged on the tower tube. The ballast water tank can change the internal draught every second, compensates for the foundation deviation caused by the wind speed and wave force, increases the platform draught depth and weight when the wind and wave are large, and maintains good stability.

The utility model discloses a floating type draught fan platform which comprises a buoy temporarily supported on a supporting column, the buoy is connected with the draught fan platform through a vertical steel cable, during construction, after a draught fan is provided with part of components, the draught of the floating type draught fan platform is increased, the buoy is emptied to provide vertical buoyancy, part of the weight of the draught fan is offset, and after the draught fan is hoisted, the buoy is connected with the draught fan platform through the vertical steel cable. The method comprises the following steps: dragging a floating fan platform to a deepwater area, injecting water into the platform to sink in the deepwater area, injecting water into the buoy to sink, and after the buoy is supported on a supporting structure of the platform, releasing a vertical connecting steel cable of the buoy and the platform, draining ballast water of the buoy, floating the buoy, separating from the platform, assisting in displacement of the buoy, and finishing installation of the fan. Construction is completed under the condition that the water depth of a wharf is insufficient by combining the separated floating cylinder with the fan platform.

The invention relates to the technical field of wind power equipment, and discloses a floating type wind power device which comprises a wind power unit and a wind power platform. At least three box type connecting structures are uniformly arranged in the circumferential direction of the fan base; the ballast block is coaxial with the fan base; and the damping device is arranged in the box type connecting structure in a sliding mode and comprises a damper, the end, away from the fan base, of the damper is anchored to the seabed through a first mooring system, and the end, facing the fan base, of the damper is connected with the ballast block through a second mooring system. The sliding damping device is arranged in the box-type connecting structure, the environmental load is introduced into the damper through the first mooring system, the inertia response of the ballast block is introduced into the damper through the second mooring system, two paths of input are coupled at the damper, vibration energy is consumed through the hydraulic damping effect, and the damping effect is improved. The stability and safety of the platform under complex sea conditions are remarkably improved, and the surging, swaying, heaving and yawing movement of the platform is effectively restrained.

The utility model discloses a local connection combination structure of a ballast type model ship, which relates to the technical field of ship model connection structures, and comprises a ship body, a splint layer is arranged on the upper surface of the ship body, a control room is arranged on one side of the upper surface of the ship body, an antenna is fixedly welded on the upper surface of the control room, and the upper surface of the control room is provided with an antenna. A cabin body is arranged on the lower surface of the ship body, a plurality of supporting frames distributed at equal intervals are fixedly arranged on the lower surface of the ship body, clamping plates are symmetrically and fixedly arranged in the cabin body, the clamping plates are connected with the corresponding supporting frames in a clamped mode, and main supporting beam grooves and a plurality of connecting grooves are formed in the supporting frames. According to the local connection combination structure of the ballast type model ship, through the clamping connection mode of the supporting frame and the clamping plate and the cooperation of the clamping groove and the receiving groove, the connection between the cabin body and the ship body is more stable, various external forces in the sailing process can be borne, and the risk that the cabin body is loosened or falls off is reduced.

The utility model provides an anti-rolling water tank device of a ship, which comprises a left anti-rolling water tank, a right anti-rolling water tank and a communicating tank communicated with the bottom of the left anti-rolling water tank and the bottom of the right anti-rolling water tank, the left anti-rolling water tank and the right anti-rolling water tank have the same height and are higher than the communicating tank, ballast water is loaded in the anti-rolling water tank device, and the communicating tank is communicated with the left anti-rolling water tank and the right anti-rolling water tank. The ballast water can flow left and right in the left stabilization water tank, the right stabilization water tank and the communication tank, and the top of the left stabilization water tank and the top of the right stabilization water tank are each provided with a vent hole. Reverse transverse moment is formed by means of gravity center change of ballast water in the cabins, so that the rolling angle of the ship is effectively reduced, air flow speed is limited by controlling the sizes of the vent holes in the stabilization water cabins, flowing limitation of the ballast water in the cabins and control over the back-and-forth change time of the ballast water in the left cabin and the right cabin are achieved, and the stability of the ship is improved. The requirements of rolling periods of different ship bodies can be met; the device is simple in structural form, easy to implement, low in cost and free of maintenance.

The invention discloses a self-adaptive ballast adjustment method for a new energy ship based on a vanadium redox flow battery. The method comprises the following steps: establishing a collaborative arrangement structure of a vanadium redox flow battery and a ballast water dual system; based on the parameters of the collaborative arrangement structure, a linearization model capable of defining the relation between moment balance and the ship heeling angle and the ship heeling angle is constructed; constructing a target function for adaptive ballast adjustment of the new energy ship based on the linearization model; establishing a ballast adjustment constraint condition for the target function; based on the constructed heuristic solving strategy, the objective function is solved according to the ballast adjustment constraint condition to obtain an optimal solution, and the optimal solution is the optimal adjustment scheme of the electrolyte tank and the ballast water tank in the collaborative arrangement structure; based on the optimal solution, self-adaptive ballast adjustment of the new energy ship based on the vanadium redox flow battery is achieved. The problems that a traditional ballast system is slow in response, low in precision, uncontrollable in energy and the like, and rapid adjustment and high-precision control cannot be achieved are solved.

The present invention discloses an assembled ballast water tank dedicated to an engineering pile foundation detection ballast platform, comprising: several layers of ballast water tanks and a support arm mechanism supported between or above the ballast water tanks; the ballast water tank has a space for loading water, and the support arm mechanism is composed of several rotating support arms. Based on the rotational connection between the rotating support arms or between the rotating support arm and the ballast water tank, when the support arm mechanism rotates into an upright state, the ballast water tank is supported, and when the support arm mechanism rotates into a folded or toppled state, the ballast water tanks are stacked. The present invention can reduce the on-site assembly procedures and difficulties between the ballast water tanks, thereby reducing the labor intensity, ensuring the overall structural strength of the ballast water tank and reducing the collapse risk. Since the box body and the water body are separated, the user only needs to transport and hoist the box body, and can move this assembled ballast water tank arbitrarily. At the same time, it is convenient for transportation, hoisting and storage, greatly improving the work efficiency and economic efficiency.

The application belongs to the technical field of variable speed regulation, and discloses a continuous variable speed regulation experiment system and method for ship ballast, which comprises a ballast water hardware system and an upper computer remote control system; the ballast water hardware system comprises a water tank, a water pump control system and a remote communication system, and the water pump control system comprises a PLC master control and a pipeline system; the application develops a ballast water control system for model test, which can be used to replace the pressure iron to realize the adjustment of the draft and improve the efficiency. The application simulates the real ship ballast process and realizes the automatic control of the ballast process. The application saves the time for the ballast condition adjustment process in the model test and improves the test efficiency. The application realizes the state simulation of the ship model under the complex sea conditions in the dynamic adjustment process, and can realize the ballast condition adjustment at different speeds; the application breaks through the limitation of the test range and can carry out more experiments.

The application discloses a bidirectional ice-breaking transport ship with open water performance, wherein the lower bow part of the bow of the ship is a small ball bow, the lower ice belt waterline is located on the upper half of the small ball bow, the outer surfaces of the upper bow part, the middle bow part and the lower bow part are streamlined, an ice discharge groove is arranged below the stern plate of the stern of the ship, the ice discharge groove is divided into two symmetrical halves by the centerline of the ship, the intersection line of the ice discharge groove and the ice-breaking stern is the stern post, the included angle between the stern post and the centerline of the ship is not greater than 30 DEG, a pod platform is arranged at the position close to the keel of the stern post, a triangular transition plate is arranged at the position close to the stern of the ship, the transition plate connects the end of the ice discharge groove and the ice-breaking stern with the stern plate, the distance between the two stern posts on the two sides of the ice discharge groove gradually increases from the stern of the ship to the keel direction, and the end of the stern post close to the transition plate is higher than the other end. The structure of the bidirectional ice-breaking transport ship has the open water performance under ballast water and the bow ice-breaking performance under the lower ice belt waterline, the bow of the ship has the ability of breaking thin ice, the stern of the ship has the ability of breaking medium heavy ice, and the bidirectional ice-breaking transport ship has important significance.