469 results about "Mooring" patented technology

A fleet of vessels attached together longitudinally (rows), and transversely (columns) and operating in unison convert wave energy to electrical energy which is stored in either a chemical or electrical form. The vessels when detached from the fleet provide transportation to coastal or by navigable waterway ports of call for distribution to market centers. Both wind wave and swell wave energy conversion is performed by use of the differential motion between the vessels. Means are provided for the energy conversion systems to adapt to changes in wave direction, wave length, amplitude, and phase. Such vessels are self powered for off shore or inland waterway navigation, either singularly or in multiples, with which to deliver energy to other sea going vessels or to land based ports of call. Two or more of such vessels are capable of using the energy of waves during the delivery process. The fleet can maintain a designated geographical location by dynamic positioning. Alternatively, the fleet may maintain its designated position by moorage of a designated centrally located vessel in the fleet to a permanent anchoring system when operating at appropriate depths.

The invention relates to a power station on a submerged floating platform consisting of a floating structure (1) submerged at a certain depth, where it is moored by means of guy lines (2) with respect to ballasts or mooring buoys (3) located in the aquatic bed, arranging on said floating structure (1) hydraulic pumping mechanisms (5) which are operated by the weight differential of the water column between the crests and the troughs of the waves when such waves pass over them, in combination with a pneumatic system acting as a spring in said mechanisms (5) for operating an electricity-generating turbine (8) through a hydraulic closed circuit.

The invention relates to an inductive coupling-based anchoring self-lifting profile monitoring buoy. The conventional monitoring buoy has various deficiencies on communication. The top of a buoy body is provided with an antenna, and the bottom of the buoy body is connected with a counterweight block through a lower bracket and a mooring cable; a buoy body instrument cabin is arranged in the buoy body; a communication transceiving module, a buoy data forwarding module and a coupling signal receiving module are arranged in the buoy body instrument cabin; the communication transceiving module is in signal connection with the buoy data forwarding module; the coupling signal receiving module is in signal connection with the buoy data forwarding module; a coupling signal receiving coil and a coupling signal transmitting coil are sleeved on the mooring cable; the coupling signal receiving coil is in signal connection with a coupling signal transmitting module; the coupling signal transmitting module is in signal connection with an underwater data acquisition and storage module; and the underwater data acquisition and storage module is in signal connection with a profiler sensor. The anchoring self-lifting profile monitoring buoy can realize close-range non-contact wireless transmission in a larger space angle range, and has the advantages of low cost and low power consumption.

A mooring leg connector for use with a mooring leg extending up from the sea floor to connect a floating structure to be moored to the seabed wherein disconnection and connection of the mooring leg is done by pulling in and out a connector elongated body extending in the mooring leg direction. The connector has a latch mechanism for fixation of the mooring leg to the floating structure to be moored and preventing movement in the direction of the seabed, and a flexible part with a double articulation axis located at the bottom of the connector body above the attachment member, the connector body being received in a housing which is fixed to a part of the structure to be moored, wherein the latch mechanism includes guiding elements and followers or orientation pins between the body of the connector and the housing

An ice thickness / drifting velocity observation of sea ice by using an ice thickness measurement sonar and a current meter moored into the sea and a sea ice observation by a high-resolution airborne SAR are synchronously performed, a correlation between a draft profile of sea ice passing over the sonar and an SAR backscattering coefficient profile is calculated, and an ice draft of desired sea ice is calculated from the relational expression and an SAR backscattering coefficient. As the SAR backscattering coefficient, a backscattering coefficient of L-band HV polarization may be used. A backscattering coefficient of X-band VV polarization is preferably used as the SAR backscattering coefficient to detect thin ice having a thickness of not more than approximately 10 cm.

The invention discloses a method used for realizing the integral lifting of marine engineering modules in the marine engineering field. After the module is constructed integrally, the invention makes use of floating cranes, barges and special crane beams to realize the integral lifting of modules on water by regulating the sea gauge of a main hull. Compared with the similar technology, the invention has the following advantages that the preparation of special crane beams can reduce the length of lifting cables so as to enhance the effective lifting height of floating cranes; and the adopting of the floating crane to lift the modules to the barges can avoid the use of a plurality of fittings used for conveying so as to reduce the cost. Simultaneously, the deep water is adopted to moor the main ship so as to ballast the main hull and reduce the height of the freeboard and then the high lifting capability of the floating crane is enhanced and the shipbuilding cost is reduced finally.

The invention relates to an on-line monitoring apparatus of a ship mooring force. The monitoring apparatus comprises a strain electrical measurement apparatus installed at a bollard, a strain bridge signal conditioner connected with the strain electrical measurement apparatus, a power supply connected with the strain bridge signal conditioner, a strain signal acquisition card connected with the strain bridge signal conditioner, and a terminal processor connected with the strain signal acquisition card. The terminal processor has a mooring force data processing unit. The provided on-line monitoring apparatus has advantages of convenient installation and low cost; and on-line real-time monitoring on the ship mooring force can be realized. In addition, the invention also designs a monitoring method of the on-line monitoring apparatus of the ship mooring force. With the method, security of the ship, the cargo, the property of the staff, and the harbor water area can be guaranteed.

The invention discloses a float type wave energy power generating system which comprises a float platform, and a wave energy collecting power generating mechanism and a wind energy collecting power generating mechanism which attach to the float platform. The float plate is a wedge-shaped ship. A plurality of floater type wave energy collecting devices are arranged on two sides of the shell of the wedge-shaped ship. Two swing plate type wave energy collecting mechanisms are arranged on two sides of the tail of the wedge-shaped ship. A wind energy collecting device is arranged on the deck of the wedge-shaped ship. By the arrangement, the float type wave energy power generating system has the advantages that the system can be mounted offshore and in deep sea and is unlimited by water depth; the system adopts catenary single-point buoyancy mooring, the power generating device can rotate freely around an anchoring device, an automatic wave facing function is achieved, and wave energy is collected to the maximum extent; the kinetic energy and potential energy of waves and offshore wind energy can be collected efficiently at the same time and converted into electric energy by the system, and real-time collecting, monitoring and transmission of various sea energy data can be achieved.

A method for use with maintenance of an offshore wind farm includes a plurality of offshore wind turbines installed in open sea, where the method uses an assembly of a plurality of shuttle vessels 8, 9 and a seaworthy harbour ship 1 which includes an internal harbour basin 4 within outlines of the ship 1 and a plurality of mooring positions 7 for mooring the plurality of shuttle vessels 8, 9 to the ship 1 when lying inside the basin 4, where the method further includes comprises sailing the assembly of the plurality of shuttle vessels 8, 9 and the harbour ship 1 towards an anchoring position near or in the wind farm and anchoring the harbour ship 1 there, and sailing the plurality of shuttle vessels 8, 9 back and forth between the mooring positions 7 of the anchored harbour ship 1 and distinctive ones of the wind turbines for performing the maintenance thereto.

A mooring leg connector for use with a mooring leg extending up from the sea floor to connect a floating structure to be moored to the seabed wherein disconnection and connection of the mooring leg is done by pulling in and out a connector elongated body extending in the mooring leg direction. The connector has a latch mechanism for fixation of the mooring leg to the floating structure to be moored and preventing movement in the direction of the seabed, and a flexible part with a double articulation axis located at the bottom of the connector body above the attachment member, the connector body being received in a housing which is fixed to a part of the structure to be moored, wherein the latch mechanism includes guiding elements and followers or orientation pins between the body of the connector and the housing.

A boat cover for a boat includes a cover section that is sized to cover the deck from bow to stern and extending over the rub rail, and a shipping section attached to the cover section and sized to cover the hull from below the rub rail toward the chine. The shipping section is removable from the cover section. The boat cover eliminates waste as a shipping cover and is usable by the boat owner as a daily or long term storage, mooring and trailering cover.

The invention provides a winch load simulation experimental device and method for an ocean ship. The device comprises a load winch, a testing device, a hydraulic system and a control system. The load winch comprises a base, a hydraulic motor, a testing winding drum and a speed reducer, wherein the hydraulic motor, the testing winding drum and the speed reducer are mounted on the base. The hydraulic motor is connected with the input end of the speed reducer through a universal joint. The output end of the speed reducer is connected with the testing winding drum through a coupling. The hydraulic motor is connected with the hydraulic system. A mooring rope is wound around the testing winding drum, and one end of the mooring rope is connected with a to-be-tested winch after penetrating the testing device. The testing device comprises a supporting frame. A higher first pulley and two lower second pulleys are mounted on the supporting frame, and the two second pulleys are arranged on the two sides of the first pulley correspondingly. A pressure sensor used for detecting the bearing pressure of the first pulley and a rotating speed sensor used for detecting the rotating speed of the first pulley are mounted on the supporting frame. The two second pulleys press the mooring rope on the testing winding drum to the first pulley.

Arrangement for mooring, loading and unloading of a vessel, comprising: a stationary inner tower with a lower end fixedly anchored to the seabed, from where the inner tower extends upwards through the sea to an upper end over the sea level, which inner tower at level close to the seabed has through connections for hoses and cables for transfer of load and signals, which hoses and cables are brought further up through the inner tower and out of its upper end; a yoke that in one end is rotatably fastened to the inner tower, wherefrom the yoke extends further outwards to at least one outer ballastable end wherefrom moorings are arranged to keep the vessel anchored, on which vessel devices are provided to connect the vessel with the moorings and said hoses and cables for transfer of load and signals. The mooring arrangement is distinguished in that it further is comprising an outer tower with rotatable fastening to the inner tower, which outer tower from the fastening to the inner tower extends upwards outside the inner tower to a level over the upper end of the inner tower, wherein the rotatable fastening is placed below sea level and also is comprising the fastening of the yoke, such that the outer tower and the yoke as one unit is freely rotatable over and around the inner tower that is stationary anchored to the seabed; and a swivel provided between the upper end of the inner tower and the upper end of the outer tower, for rotatable transfer of load and signals with said hoses and cables between the inner and the outer tower and therefrom further to the vessel.

The invention discloses a system and method for locating an ultra-deepwater underwater stand pipe supporting pontoon. The system comprises an underwater power locating device and a pontoon tension mooring locating device; and the underwater power locating device comprises a control cable and four thrusters, and the pontoon tension mooring locating device is characterized in that a stand pipe supporting pontoon is vertically moored on a seabed by a tension mooring rope. The four thrusters are respectively arranged at four appointed positions of the stand pipe supporting pontoon to respectively take charge of lifting up and down, moving forwards and backwards and rotating the stand pipe supporting pontoon, and can freely and exactly move the stand pipe supporting pontoon to an underwater appointed position. According to the system for locating the ultra-deepwater underwater stand pipe supporting pontoon, disclosed by the invention, the stand pipe supporting pontoon is located at the underwater appointed position by power and then is fixed on the seabed by the pontoon tension mooring locating device so that the movement amplitude of the stand supporting pontoon can be reduced, and the stand pipe supporting pontoon can very smoothly stop at the underwater appointed position.

The invention discloses a manufacturing technology of an R4 grade mooring cable used on a deep sea drilling platform. The manufacturing technology comprises steps as follows: blanking, heating, ring making, flash welding, burr removing, ledge pressing, quenching and tempering, tension testing, surface polishing, non-destructive flaw testing, packing, dip coating and shipping, wherein during heating, the fine grain steel granularity is required to be maintained to be higher than three grades; the temperature difference is controlled to be plus or minus 2 DEG C; during ring making, welded junctions are spaced for 1-3 mm, the angle is 3-4 degrees, and the alignment tolerance is 0.3 mm; the burr removing precision is smaller than 3%; the difference of the reshaping size of a pressed ledge is controlled to be plus or minus 0.2 mm; a ledge is strengthened and not symmetric; and the ledge length difference is plus or minus 0.2 mm. The marine mooring cable manufactured with the manufacturing technology method has the effects of high strength and toughness, corrosion resistance and fatigue resistance.

The invention discloses a system capable of monitoring a container ship flotation condition and stability during mooring loading and unloading for multiple shore bridges. Small-amplitude ship swing motion stimulated during mooring loading and unloading and a dynamic inclination sensor loaded on a shore bridge lifting appliance are used, according to information of dock stormy waves, a dock tidal level, stow work, a ship type structure, a lifting appliance position, a sling tightness degree, rotary lock opening and closing, a lifting appliance inclination angle and the like, data monitored through multiple shore bridge lifting appliances are stacked, spliced and integrated, mooring constraints are removed, loading and unloading stimulated local free ship swing is calculated, an optimal fitting parameter of a non-linear curve model is solved, average draught data are obtained at the moment of starting operation of a box and loosening a cable, algorithms of estimating the initial stability corrected through a free liquid face and the like are used for solving a natural period, a steady-state inclination angle and the initial stability, real-time monitoring and early warning of the container ship flotation condition and the stability during mooring loading and unloading can be achieved, data reference is provided for a dock and a shipper to take stowage or ballast adjustment in time, and cargo falling into water, ship overturn, channel blockage and other accident disasters caused by dock loading and unloading work can be prevented.

The invention discloses a pressure measurement and rope guide device of a marine heavy-load winch. A three-pulley pressure measurement mechanism on a pressure measurement device can synchronously swing along with the swing of a mooring rope by designing a reasonable pressure measurement device mechanism. Meanwhile, a rope guide device enables the mooring rope passing the three-pulley pressure measurement mechanism on the pressure measurement device to keep synchronous and collaborative movement in the axial direction of a rolling barrel when a mooring rope wound on the rolling barrel is wound up and released, and enables the pulley pressure measurement mechanisms to move up and down along a vertical shaft along with wind-up and release movements of the mooring rope on the rolling barrel to keep a rope outlet angle unchanged. Therefore, the defects that the mooring rope passing the three-pulley pressure measurement mechanism generates additional force and moment and measurement accuracy is affected due to the facts that the mooring rope irregularly swings and the rope outlet angle constantly changes are overcome, the entire device can carry out rope guiding reasonably and orderly, and the equipment failure rate is reduced. The pressure measurement and rope guide device of the marine heavy-load winch can achieve smooth rope guiding conveniently and accurately, and overcomes the defect that a traditional three-pulley pressure measurement mechanism can not measure an accurate value due to the influence of environmental conditions.

The invention provides a wave power generation apparatus with an anchor chain automatic adjusting device. The wave power generation apparatus is low in construction cost. The wave power generation apparatus comprises an appendage system, an acting floating box, an anchoring system, an anchor chain automatic adjusting device and a power generation system 5. The appendage system 1 is pulled by the anchoring system 3 and can be pulled in the water; when the buoyancy force and the pull force of an anchor chain reach balance, the appendage system 1 becomes motionless in water and does not rise and fall along with waves. The power generation system 5 installed on the appendage system 1 generates electric energy because a rack or a hydraulic rod thereof moves along with the acting floating body 2. The anchor chain automatic adjusting device 4 can adjust the length of a mooring rope according to the change of tides, so that the floating bodies of the appendage system 1 can be kept at a certain position under the water surface and almost maintain a stable distance with the water surface and the acting floating body 2 can move in a certain fixed range of a support. The apparatus is relatively low in construction cost, simple to manufacture, easy to install, convenient to maintain and higher in commercial value.

The invention relates to the technical field of measurement experiment equipment, and more specifically relates to a three-degree-of-freedom decomposition mooring structure measurement experiment device. The device comprises a device frame, a Z-direction measurement system, a Y-direction measurement system and an X-direction rotation measurement system, wherein the water flow direction is set to be a y axis, the upward direction perpendicular to the water surface direction is set to be a z axis, the x axis is perpendicular to the y axis and the z axis, and the x axis, the y axis and the z axisform a right-hand coordinate system. Under the action of waves, the device frame and the to-be-measured object move up and down along the z-axis, and the to-be-measured object moves back and forth along the y-axis and rotates along the x-axis. The device is reasonable in design and simple in structure, and can effectively measure the three-degree-of-freedom motion and dynamic response of the to-be-measured object.

The invention provides a ship mooring and positioning method. Four cement piers are used for replacing existing anchors and placed underwater through steel wire ropes. Steel wire ropes on upstream underwater anchors are fixed to the shoreside, wherein the fixed points are close to the lowest water level to the greatest extent, and an anchor moored positioning winch with a constant tension function is used for adjusting the tension of the steel wire ropes. The ship mooring and positioning method meets the mooring requirement of fixed point operation in a narrow channel with obstacles on the two sides, does not affect navigation of an original river channel or proceeding of follow-up potential associated engineer operation, can bear a large wind load and current load, and can guarantee that no impact on nearby buildings on water is caused when a system partly loses efficacy. A ship can still operate normally even if the height of water is large.

The invention provides an open sea immersed tube floating transportation installation integrated measurement and control system and a measurement and control method thereof, and belongs to the field of immersed tube measurement and control. The measurement and control system mainly comprises an immersed tube measurement and control module, a coordinate conversion module, a display platform and software and hardware equipment. The immersed tube measurement and control module comprises an undocking measurement and control unit, a floating transportation measurement and control unit, a mooring measurement and control unit and an installation measurement and control unit. The measurement and control system is based on the construction process of the immersed tube tunnel, the measurement and control system corresponding to the immersed tube tunnel is researched and developed, the corresponding measurement and control units can be switched to in different construction stages, seamless jointof the process is achieved, and accurate positioning and precision guarantee are provided for all the processes. The measurement and control system and the measurement and control method provided by the invention have very wide application prospects in the field of immersed tube measurement and control.

The invention relates to a shallow sea self-floating acoustic releaser and a recovery method. The releaser adopts an integrally designed integral structure, and the releaser mainly comprises a main control unit, a floating body, a rope bin cylinder, a rope bin core cylinder, a cable and a locking connection cover. The main control unit is installed on the floating body, and the floating body is placed above the rope bin cylinder; the cable is uniformly wound in the rope bin cylinder, one end of the cable is connected with the floating body, and the other end of the mooring rope is connected with a hanging ring mounted on the locking connecting cover; the locking connecting cover and the rope bin core cylinder are fixed below the rope bin cylinder; the main control unit locks the locking connecting cover through the releasing mechanism installed below the main control unit, so that the locking connecting cover and the main control unit are integrated, and the lower end of the locking connecting cover can be connected with an ocean instrument equipment platform frame; and after the main control unit is separated from the locking connecting cover, the floating body quickly floats to the water surface, and after finding the floating body, a water surface searcher can pull the mooring rope through a shipborne winch to recover the marine instrument platform.

The present invention relates to a method by which a computing means monitors a harbor, and a harbor monitoring method, according to one aspect of the present invention, comprises the steps of: acquiring a harbor image; generating a segmentation image corresponding to the harbor image; generating a display image corresponding to the harbor image and having a first view attribute; generating a conversion segmentation image, which corresponds to the segmentation image and has a second view attribute different from the first view attribute; matching the display image so as to generate a panoramic image; matching the conversion segmentation image so as to generate a matching segmentation image; calculating ship mooring guide information on the basis of the matching segmentation image; and outputting the mooring guide information together with the panoramic image.

A method for reducing the swinging of an anchored or moored to a buoy ship, by the suitable activation of the bow thruster and the stern thruster of the ship in accordance with the signals obtained by at least one of the following sensors: a) gyroscope, b) magnetometer, c) anemometer, d) GPS, e) inertial navigation system, f) a device measuring the angle between the longitudinal axis of the ship and the vertical plane through the anchor chain of the ship, is described.

The invention discloses a marine environment monitoring device. The device comprises a take-up and pay-off mechanism and a sampling mechanism, wherein the take-up and pay-off mechanism comprises a support plate, a wire wheel and a mooring rope, the sampling mechanism comprises a shell, a sampling barrel and a floating seat, the sampling barrel is slidably connected into the shell, and a sampling hole is formed in a side plate of the sampling barrel. in the using process, when the sampling mechanism reaches the target depth, the shell descends under the action of gravity, so the sampling barrel performs sampling operation after reaching the target depth, and after sampling is completed, the floating seat ascends to close the sampling opening, and then the sampling mechanism ascends through the retracting and releasing mechanism, so water sample collection is accurately performed on a water body at the target depth; the collected water sample is accurate, so the water quality of the water body at the target depth can be accurately analyzed.

An ocean wave energy extractor includes a first flotation device that contains a second flotation device and a mechanism for extracting energy. The wave energy extractor floats in seawater and extracts energy from waves. A propagating wave rotates the first flotation device relative to the second flotation device. The mechanism is connected to both flotation devices and generates energy from this relative rotation. In one example, a first flotation device includes a spherical chamber with a flotation collar, and a second flotation device supported by a joint at a center of the chamber. A wave approaching from any direction rotates the first flotation device relative to the second flotation device, and a mechanism for extracting energy generates electrical energy from the relative rotation. The chamber shields inner components from seawater and adverse ocean conditions. The wave energy extractor need not be moored to a location to extract energy from waves.

The virtual anchoring navigation control means that a wave glider performs virtual anchoring control within a certain range of an anchoring point, marine data can be conveniently obtained for a long time, and a marine environment can be conveniently detected. An algorithm comprises the steps of setting a virtual anchoring center point, introducing a virtual mooring error circle, and giving an error circle radius R; carrying out curve discretization on the virtual mooring error circle, which means converting circular curve trajectory tracking into linear path tracking for tracking a plurality of target points, allowing a compass to collect a current course angle psi, allowing a GPS module to perform positioning on the wave glider in real time, calculating an expected course angle psi los byan LOS algorithm, inputting a course difference between an actual course angle and an expected course angle into a PID controller, solving a current expected rudder angle delta and executing steering; and after the wave glider enters the error range of the target point, switching to a next target point, and performing continuous target heading point tracking. According to the invention, a virtualanchoring navigation control algorithm is designed to eliminate precision errors caused by an external environment during anchoring, and through the continuous tracking of a target heading point, thereentry into the anchoring state can be achieved when deviating from the anchoring state.