58results about How to "Reduced motor response" patented technology

The invention discloses a three-body-combined offshore laser radar wind measuring buoyage. The three-body-combined offshore laser radar wind measuring buoyage comprises a buoy, a wind measuring laser radar, a motion sensor module, a fan assembly, storage batteries, meteorological measurement modules, a seawater measurement module and a mooring system for positioning, wherein the wind measuring laser radar, the motion sensor module, the fan assembly, the storage batteries, the meteorological measurement modules and the seawater measurement module are mounted on the buoy. The buoyage can combine the laser radar and the ocean buoy and has advantages in cost and use flexibility in a working process for finishing corresponding offshore wind profile measurement; further, the buoy adopts a three-body-combined structure, the motion response amplitude in waves is smaller, the hydrodynamic performance is excellent, the structural components are convenient and easy to dismount and assemble, the size of the buoyage is relatively small and can meet the requirement for loading into a standard container, package and transport of the whole system by the container can be realized, requirements of land transportation and sea transportation can be met, and the buoyage has the advantages of convenience, rapidness, high flexibility, high price/performance ratio and the like in an optional mode of transportation.

The invention discloses a superlarge floating platform based on modularizing and hybrid mooring, and belongs to the field of marine energy resource utilization. The superlarge floating platform comprises a central large platform module, a small platform module, a tension leg system, an anchor chain system, an oscillating floater type wave energy power generating device and module connecting components. The oscillating floater type wave energy power generating device converts the swinging of a floater into the horizontal movement of a piston rod in a gear and rack transmission mode and drives amotor of a bidirectional hydraulic power generation system to generate power. The module connecting components are divided into two modes according to the sizes of the connected platform modules, power generation is realized through the relative torsion and horizontal bidirectional movement between small platforms and large platforms and the relative torsion between the small platforms, and the relative movement between the modules is relieved when energy supply is obtained. The wave energy device outside the superlarge floating platform can provide energy supply through incident wave energyand can also effectively weaken the incident wave loads and reduce the movement response of the platform; by means of a hybrid mooring system with the tension leg system and the anchor chain system, the safety and stability of the whole platform can be ensured.

The invention discloses an FPSO ship. The total length of a ship body is 310m to 330m; the molded breadth is 60m to 65m; the moulded depth is 30m to 35m and the maximum draft is 20m to 25m; from a stern to the other stem of the ship body, the ship body sequentially comprises a living building, a main power station, a power distribution module, a heat station module, a process system module, an oil gas processing and metering module and a flare tower, wherein four mooring sites are symmetrically arranged at the left and right boards of the stern and the other stem of the FPSO ship in total; the left and right boards of the stern are respectively and symmetrically provided with a set of external oil transportation device. According to the FPSO ship, the principle dimension of the ship body meets the oil storage capacity of an oil hold of the FPSO ship and the demands of an upper part module, as well as that the functions implemented are adaptive to the ship type; furthermore, the layout of the stem, the middle part of the ship and the other stem meets the living and operating demands of personnel; in addition, by adopting the multi-site mooring, the maximum tension of a mooring line of the mooring system and the maximum operating response of the ship body can be controlled better; and the external oil transportation device can be set to prevent the danger of being impacted with the FPSO ship.

The invention discloses a high-performance hybrid hullform for an amphibious aircraft. The high-performance hybrid hullform comprises a multi-bilge-line hull, two ground-effect wings and two force-bearing buoys, wherein the hull is tapering in front and rear; the ground-effect wings are symmetrically arranged at the two sides of the middle part of the hull, and the force-bearing buoys are fixed at the outer end. A non-step-fault design is adopted at the middle part of the hull, the hull is provided with three bilge lines, an upper hull between the upper bilge line and the middle bilge line and a middle hull between the middle bilge line and the lower bilge line are in the shape of a linear ramp with a bilge turn respectively, the bilge turns are arranged at the outer sides of the transverse sections, and the ramp angles of the upper hull and the middle hull range from 65 degrees to 75 degrees; and the transverse section of a lower hull is in the shape of a curve ramp. According to the high-performance hybrid hullform disclosed by the invention, the motion response of the amphibious aircraft in a wave is reduced through using the hull with the large ramp angle and multiple bilge lines; and meanwhile, an aerodynamic lift is remarkably increased and a water take-off and landing speed is reduced through using the ground-effect wings and a ground-effect lift-enhancing air cavity, and then the motion response of the amphibious aircraft in the wave is reduced and the pitching motion time of the amphibious aircraft during take-off and landing in the wave is reduced, and the anti-wave capacity of the amphibious aircraft is remarkably improved.

The invention provides a floating offshore wind driven generator system. The floating offshore wind driven generator system comprises a foundation float bowl and an offshore wind power generation assembly, and further comprises a mooring system and a structure vibration control system, the mooring system comprises multiple tensioning type mooring chain sets fixed to the foundation float bowl, thestructure vibration control system comprises a first connecting platform mounted on a fan tower and multiple semi-tensioning type mooring chain sets fixed to the first connecting platform, according to the floating offshore wind driven generator system, the structure vibration control system is added, multiple supporting points special for the offshore wind power generation assembly are added, through the structure vibration control system, the environment load and system whole vibration acting on the offshore wind power generation assembly can be effectively absorbed, the whole motion response of the floating offshore wind driven generator system can be reduced, the stability of the floating offshore wind driven generator system is improved, the power generation efficiency of the offshorewind power generation assembly can be improved, and the service life of the offshore wind power generation assembly can be prolonged.

The invention belongs to the field of mariculture, particularly relates to a cylinder floating type module, and further relates to a cylindrical floating type fishery of a self-lifting net cage. The cylinder floating type module is provided with open pores near a waterline, which can prolong the natural period of the vertical motion of the fishery, thereby reducing motion response of the fishery under the operation and extreme working conditions. The self-lifting net cage structure can be completely locked on the joint position of the upper portion and lower portion of the cylinder floating type module. When fish is completely removed from the net cage, the net cage can be dried in the sun or frozen for disinfection, and a netting can also be checked and maintained very easily. The cylindrical floating type fishery of the self-lifting net cage has the advantages that under various different environmental working conditions, the net cage maintains a constant capacity, thereby ensuring that shoals of fish are not affected by the net cage movement and volume change and live in a low-pressure environment.

The invention belongs to the technical field of ocean engineering, and discloses a multi-point mooring structure suitable for an offshore floating fan and an offshore wind driven generator, wherein the multi-point mooring structure comprises a fan platform and a plurality of groups of mooring lines, one end of each group of mooring lines is connected with the fan platform, the other end of each group of mooring lines is connected with an anchoring point, and the anchoring point is arranged on the seabed; the fan platform is cylindrical, and a plurality of groups of mooring lines are uniformlydistributed around the central shaft of the fan platform; the fan platform is provided with two rows of guide cable holes, the two rows of guide cable holes are arranged at intervals in the length direction of the fan platform, and the two rows of guide cable holes are arranged in a crossed manner; And one end of each group of mooring lines is respectively connected with the two rows of guide cable holes. The structure can effectively solve the problem of overlarge motion response of the offshore floating fan under the wind wave load, can obviously reduce the rolling motion of the fan, and improves the stability.

The invention provides a floating draught fan platform wave absorbing and roll stabilization power generation device and an active control method thereof. The floating draught fan platform wave absorbing and roll stabilization power generation device comprises three platform pile legs and supporting rods for being connected with the platform pile legs; a wave absorbing floater is arranged inside each platform pile leg, the upper end of each wave absorbing floater is provided with a stepping motor, a linear power generator rotor is connected to the output end of each stepping motor, and the lower end of each linear power generator rotor is provided with a thread; a buffer spring is matched with each thread of the corresponding linear power generator rotor through a thread seat, and the upper end of each buffer spring is connected with the inner top of the corresponding platform pile leg; the upper end of each platform pile leg is provided with the corresponding linear power generator rotor, and the upper ends of the linear power generator rotors sequentially penetrate through the buffer springs, the platform pile legs and linear power generator stators; and the outer surface of each platform pile leg is further provided with a bracket, and each bracket is provided with an incoming wave signal collecting device and an incoming wave signal processing device. The floating draught fan platform wave absorbing and roll stabilization power generation device can stay in the best wave absorbing and roll stabilization position all the time, and the efficiency of the wave absorbing and roll stabilization power generation device is greatly improved.

Disclosed is a driving rear wheel steering mechanism based on a crank connecting rod mechanism. A steering mechanism controller is additionally arranged at the mass center of a vehicle, one end of the steering mechanism controller is connected with an electricity supply of the vehicle through a circuit to lead out a control signal, and the other end of the steering mechanism controller is connected with a steering electromotor through a circuit to transmit the control signal. A speed regulating mechanism supporting plate is additionally arranged on a rear axle shell of the vehicle, a steering electromotor and a steering speed regulating mechanism are arranged, and a worm wheel spline shaft of the steering speed regulating mechanism outputs power. A steering connecting rod mechanism is hinged to two rear wheel vertical columns of the vehicle, one end of the steering connecting rod mechanism is driven through the worm wheel spline shaft, and the other end of the steering connecting rod mechanism outputs power to the rear wheel columns to drive rear wheels to rotate. The crank connecting rod structure is adopted, the movement response is rapid, the size is small, the weight is small, and energy consumption is low; the turning radius of the vehicle is effectively decreased, the high-speed stability of the vehicle is strengthened, and the safety stability coefficient of the vehicle is promoted; and particularly, the instable condition, caused by high-speed tire bursting and similar incidents, of the vehicle with a rear wheel steering function is reduced, and the accidental loss is reduced.

The invention discloses a truss inhaul cable type floating offshore wind turbine generator structure. The structure comprises ballast tanks arranged in a triangular shape, mooring systems are fixedlyconnected to all corners of the ballast tanks, truss type structures are fixedly connected to the upper portions of the ballast tanks through first stay cables, and the truss type structures are connected through transverse inhaul cables; and a mounting platform is fixedly connected to a certain elevation above the truss type structures through a plurality of inclined struts, the upper surface ofthe mounting platform is fixedly connected with the bottom end of a fan tower, and a fan is fixedly connected to the top end of the fan tower. By means of the special truss structure types, the wave load borne by the structure near a water plane is reduced, the requirement of the structure for restoring force is lowered, then the appearance size of the structure is reduced, and the steel consumption is reduced; and by means of the special inhaul cable design, the steel consumption of the fan tower at the upper portion is effectively reduced, the design of lower floating body connecting transverse supports and connecting inclined supports is effectively omitted, the dead weight is reduced, and the construction cost is saved.

The invention provides a floating fan for use between shallow water and deep water. The floating fan comprises an upper unit, a floating base, a tension leg mooring system, and an anchoring system; buoyancy is provided to the upper unit by the floating base so that the upper unit can always be positioned over the water surface; the tension leg mooring system is connected between the floating baseand the anchoring system and therefore tensioning connection is kept between the floating base and the anchoring system. According to the invention, only partial length of the floating base is immersed in water, the connection position of the tension leg mooring system and the floating base is also located over the water surface. In this way, the length of the tension leg mooring system is increased nominally, and the practical effect is to increase the compliance of the floating fan in the plane, that is, increase the natural and vertical cycle of the fan (up to 25s), and well avoid the wavenatural cycle range and the 1P, 3P frequency range of the wind wheel.

The invention belongs to the technical field related to offshore floating-type wind power generation and discloses a bifurcation mooring line-type fan mooring system and offshore wind power generationequipment. The mooring system comprises a floating-type platform, two heaving plates, multiple mass blocks and multiple mooring anchor cables. The two heaving plates are arranged in the middle of thefloating-type platform at an interval; the ends of the mooring anchor cables are connected to the two heaving plates respectively, the other ends of the mooring anchor cables are used for being connected to mooring anchor points, and the mooring anchor points are arranged at the seafloor; the mass blocks are connected to the mooring anchor cables respectively; the floating-type platform is cylindrical, and the mooring anchor cables are evenly distributed around the center axis of the floating-type platform; the number of mass blocks is identical to that of the mooring anchor cables. Accordingto the system, the motion response of a fan is effectively reduced, the stability is improved, the cost is low, the applicability is high, the structure is compact and reasonable, and construction iseasily and conveniently conducted.

The invention provides a semi-submersible floating type wind turbine foundation structure which comprises an offshore wind power generation assembly and a floating assembly. The floating assembly comprises a center buoy and foundation buoys, the floating assembly further comprises anti-wave flat plates arranged on the center buoy and the foundation buoys, and through holes are formed in the anti-wave flat plates. According to the semi-submersible floating type wind turbine foundation structure, the anti-wave flat plates are arranged on the center buoy and the foundation buoys, the anti-wave flat plates can break waves and absorb energy, scouring of sea waves to the floating assembly is weakened, impact energy in the waves is consumed, impact force of the sea waves to a tower column is weakened, and fatigue damage to the tower column is reduced. Motion response of the offshore wind power generation assembly under the coupling action of wind, waves and flow can be greatly reduced, the stability of the offshore wind power generation assembly is enhanced, fatigue damage caused by sea wave scouring to the center buoy and the foundation buoys of the offshore wind power generation assembly is reduced, and the service life of a whole offshore wind turbine is prolonged.

The invention relates to a semi-submersible type ocean nuclear power platform suitable for the deep sea. The platform comprises a superstructure, a deck box, small water plane uprights, a lower demihull and mooring devices. The platform is characterized in that the superstructure is located on the deck box, the small water plane uprights are each of a cylindrical structure, the deck box communicates with the lower demihull through the more than one small water plane uprights, the mooring devices are deep sea anchoring devices arranged on the deck box or/and dynamic positioning devices arrangedat the bottom of the lower demihull, a reactor room, a steam turbine generator cabin and a sea water desalination equipment cabin are arranged in the lower demihull, and more than one water ballast tanks are arranged in each of the small water plane uprights and the lower demihull. A single-demihull semi-submersible type platform type and small water plane upright structures are adopted, the lower demihull is submerged in the operation process, work and living zones are away from the reactor room, equipment operates stably, and personnel are safe and feel comfortable. The semi-submersible type ocean nuclear power platform is simple in structure, easy to construct and convenient to expand.

The invention belongs to the technical field of offshore wind power foundations, and discloses an offshore wind power floating foundation floating transportation construction method. The method comprises the steps of firstly, pre-manufacturing a floating platform and a mooring system on land, and performing temporary fixation through an inclined mooring line and a straight mooring line; then, performing floating transportation towing on the whole of mooring system-floating platform-tower tube-fan; then, applying ballast so that an anchor foundation can sink and is embedded into the seabed to be fixed; enabling the floating platform with the upper fan tower tube to sink to the design draught position, and anchoring the inclined mooring line and the linear mooring line; draining water in some compartments inside a floating box; finally, adjusting the weight center position of the offshore wind power floating foundation. During towing, enough floating stability can be provided, the influence of wave loads is small during the in-situ state, overwater layering stretching system is obtained, and the difficulty for installing the mooring lines underwater is lowered; the anchoring foundation provides anti-pulling force by means of the ballast weight and friction resistance and is injected into the sea bed through piled loads and the internal and external pressure difference, and construction is convenient.

The invention provides an offshore wind turbine generator floating type foundation of a grating type structure and a construction method. The offshore wind turbine generator floating type foundation comprises a wind turbine generator cabin, wind turbine generator blades, a tower drum and an anchoring system, and the floating type foundation is provided with a grating type sector ring foundation, a center stand column and a lower water pressing plate. The grating type sector ring foundation is composed of a plurality of steel cabins with sector ring-shaped outer contours, the grid grating sector ring foundation surrounds the center stand column, and the center stand column and the grating type sector ring foundation are connected through a connecting structure; and the lower water pressing plate is mounted at the bottom of the floating foundation. Compared with a traditional floating type foundation, the floating type foundation has better hydrodynamic motion performance and higher stability.

The invention discloses a floating breakwater which comprises multiple breakwater units connected in sequence. Each breakwater unit comprises a wave absorbing floating body and a mooring system for fixing the wave absorbing floating body to a sea area. Each mooring system comprises multiple mooring devices with the same structure. Each mooring device comprises an anchor chain, a metal rope, an elastic body and a concrete anchor connection mechanism, wherein one end of the concrete anchor connection mechanism is connected with one end of the anchor chain, the other end of the anchor chain is connected with one end of the elastic body, the other end of the elastic body is connected with one end of the metal rope, and the other end of the metal rope is connected with the wave absorbing floating body. The floating breakwater has the advantages that the cost is low, movement is not likely to occur, stability is high, and the wave absorbing effect is good.

The invention relates to the technical field of unmanned ships, in particular to a stabilization device suitable for a single-propeller unmanned surveying vessel. The stabilization device comprises an unmanned ship body; a propeller and a rudder blade are sequentially arranged at the bottom of the stern of the unmanned ship body from the bow to the stern; the propeller and the rudder blade are located on the middle longitudinal section of the unmanned ship body; the left side and the right side of the propeller are each provided with a composite fin stabilizer; the two composite fin stabilizers are symmetrically arranged left and right along the middle longitudinal section; the upper ends of the two composite fin stabilizers are fixed to the bottom of the unmanned ship body. The two composite fin stabilizers are installed on the two sides of a stern propeller and in front of a rudder according to the hydrodynamic characteristics of the single-propeller unmanned surveying vessel, and through the special design of main fins and auxiliary fins, the motion response of the unmanned surveying vessel in waves can be reduced, and the seaworthiness performance is improved; meanwhile, the two composite fin stabilizers can also play a role in protecting the propeller, so that the operation efficiency of the unmanned surveying vessel is improved.