72 results about "Ship waves" patented technology

The invention provides a wind power, photovoltaic power, stored energy and wave energy comprehensive utilization power generation device for a ship. The comprehensive utilization power generation device comprises a ship photovoltaic power generation system, a ship wind power generation system, a ship wave energy power generation system, a ship lithium battery energy storage system, a direct current grid-connected system, an inverter system and an alternating current grid-connected system. The ship photovoltaic power generation system, the ship wind power generation system, the ship wave energy power generation system and the ship lithium battery energy storage system are all connected to the input end of the direct current grid-connected system in parallel, and the output end of the direct current grid-connected system is connected with the alternating current grid-connected system through the inverter system. The comprehensive utilization power generation device for the ship has the advantages that wind energy, solar energy, wave energy and storage battery stored energy are arranged through the systematized and integrated design, so that the power generation device has an important value on achieving ship energy diversification, energy saving and emission reduction and improving the competitiveness of the ship.

The invention discloses an ecological bank protection structure combining boxes and insertion plates. A first-level hard protection bank, a bank protection platform and a second-level flexible protection bank are sequentially arranged from bottom to top. The first-level hard protection band is of a structure combining the prefabricated water-pervious steel bar concrete boxes and the insertion plates, each box is almost a square hollow box, the insertion plates are square, every two adjacent boxes are connected through the insertion plates, each insertion plate is fixed in clamping grooves in the middle of the outer walls on the two sides of the corresponding box, the crest level of each box is 0.4 m-0.6 m lower than a normal water level, the insertion plates are 0.8 m-1.2 m higher than the corresponding box and are 0.4 m-0.6 m away from the water facing vertical face of the corresponding box, a grid-type wave eliminating structure is formed on each water facing vertical face, and an open-type plate wave-resisting structure is formed on the upper portion of each structure. The tops of the boxes are covered with soil so that reeds and other protection plants can be planted, and concrete is poured on a bywater side of each box for blocking soil. Ship waves can be effectively reduced, the variety of off-shore water currents is improved, materials are saved, project manufacturing cost is reduced, and ecological benefits and economic benefits are both obtained.

The invention discloses a river channel ecological bank slope protective system which comprises a reverse filtering pad and a protective pad sequentially paved on a river channel bank slope; an anchoring device is utilized to fix the protective pad and the reverse filtering pad on the bank slope; the protective pad is formed through weaving longitudes and wefts perpendicular to each other and comprises a plurality of structural units arranged regularly; each of the structural units takes the shape of a rectangular pyramid; every two adjacent structural units are mutually joined through corresponding bottom edges; the pyramid vertex of each of the structural units is a supporting part leaned against the surface of the bank slope; and the bottom edge of each of the structural units is a buffering part relatively far away from the surface of the bank slope. The river channel ecological bank slope protective system is suitable for ecological restoration of the ecological bank slope and thehydro-fluctuation belt of rivers and lakes, can effectively reduce erosion of water surface waves, ship waves, stormy waves, rainfall runoff and the like to the bank slope and the hydro-fluctuation belt, permanently protects the natural ability of soil from erosion and enables the ecological system of the bank slope or the hydro-fluctuation belt to evolve to the natural state.

A ship vicinity information display device is provided. The ship vicinity information display device includes a display unit configured to display information indicating a situation in the vicinity of a first ship, a detector configured to detect a second ship existing in the vicinity of the first ship, a ship wave information generating module configured to generate information of ship waves caused by the second ship, and a display processing module configured to cause the display unit to graphically display the second ship detected by the detector, and the information of the ship waves generated by the ship wave information generating module.

The invention discloses a container floating breakwater and a construction technology thereof. The breakwater comprises a plurality of breakwater units and an anchoring system. The breakwater units are container floating bodies. The container floating bodies are connected end to end to form the floating breakwater which is anchored and positioned by the anchoring system. The construction technology of the container floating breakwater comprises the following steps that 1, the container floating bodies are assembled; 2, an anchor block is installed on site; 3, the container floating bodies are hoisted on site and connected to form the floating breakwater; and 4, an anchor chain is installed to anchor and position the floating breakwater. In this way, the formed floating breakwater is convenient to construct, fast to assemble and disassemble, low in manufacturing cost, good in breakwater effect, and capable of well blocking ship waves produced by a high-speed passenger ship, reducing influences of the ship waves on the construction ship stability and blocking natural waves, so that the natural wave height of a construction point is reduced, and a temporary support on the construction point is stable.

The invention discloses a traction propelling propeller jet flow and ship wave turbulence simulation experiment device and method. The device comprises a transparent water channel, a model ship, a traction mechanism, a vertical lifting mechanism, a water-power observation instrument and a water sample collection device, wherein the transparent water channel has a stripped channel structure; the model ship is detachably connected with a propelling propeller; the traction mechanism comprises a traction rope and a driving mechanism which is in driving connection with the traction rope; the driving mechanism is used for driving the model ship to move horizontally at different speeds along the length direction of the water channel in the transparent water channel under the action of the traction rope; the vertical lifting mechanism is used for changing the immersion depth of the model ship in the transparent water channel; the water-power observing instrument is used for observing the waterbody in the water channel; and the water sample collection device is used for collecting the water sample in the water channel. Through adoption of the device, the moving speeds and directions of theship and the propelling propeller, the ship immersion depth, the rotation and speed and immersion depth of the propelling propeller can be simulated indoor, and the influence on the flow field structure, turbulent fluctuation feature, sediment suspension and pollutant migration feature of the propelling propeller and jet flow and the ship wave can be observed.

The invention provides an offshore wave motion-based detection system and method, belongs to the technical field of offshore detection and solves the problems that an existing system is complex in structure and easily generates certain errors. The offshore wave motion-based detection system and method comprise the following steps: 1), collecting wave motion data: collecting offshore wave motion data by using an acceleration detector in time intervals st of 0.01 s under a sampling frequency of sf=1 / st=100 Hz; 2), analyzing and identifying data; 3), mathematically describing an equation; 4), analyzing errors. The offshore wave motion-based detection system and method enable more effective compensation for ship wave motion and also enable reduced errors.

The invention discloses a ship which can advance laterally and reduce the wave resistance. It includes ship body (1), the lateral position below the ship body (1) floating line is equipped with several tunnel (2) passing through the ship body (1), two ends of each tunnel (2) are equipped with propeller (3) respectively, the propeller (3) is connected with the drive device (K1) driving it work and the all-slewing equipment (K2) which can make the propeller (3) generate thrust towards any direction, it is also equipped with the lateral oscillating motion device(K3) which recalls and overhangs the propeller (3) into tunnel (2). The ship has simple structure, it can reduce the ship wave resistance effectively to pushing water navigation, as well as can make the propeller generate thrust towards any direction conveniently and recall or overhang the propeller into tunnel, it can effectively increase the cabin capacity of ship; it can realize turning conveniently and enhance the stability of ship course greatly.

The invention provides a bulbous bow assembly in the technical field of ship equipment. The bulbous bow assembly comprises a bulbous bow main body, a slideway and a driving slippage device, wherein the bulbous bow main body is arranged below a ship body along the length direction of a ship; the slideway is arranged between the ship body and the bulbous bow main body, and comprises slide rails which are distributed along the length direction of the ship and slide blocks matched with the slide rails in a sliding mode; the slide blocks slide front and back in the slide rails along the length direction of the ship; the slide rails are fixedly connected with the bottom of the ship body, and are fixedly connected with the top of the bulbous bow main body; the driving slippage device is fixedly arranged in the ship body, and comprises a main pulley and a driving belt; the main pulley is a fixed pulley; the driving belt surrounds the main pulley; two ends of the driving belt are respectively fixedly connected with the front end and the rear end of the bulbous bow main body. The ship body provided by the invention is separated away from the bulbous bow main body; the position of the bulbous bow main body can be adjusted in real time; according to a wave making cancellation principle, the bulbous bow main body can be fully utilized for reducing the ship wave making resistance under multiple navigation speeds and multiple sea conditions, furthest reducing the navigation resistance of the ship body, reducing energy source loss, and further reducing the operation cost.

The invention discloses a method for damping waves, holding trash and filtering in still water, and belongs to the field of water conservancy projects, in particular to a method for filtering a water body and damping ship waves by arranging a wave-damping, trash-holding and filtering floatation type telescopic grid device. The method comprises the following steps: constructing the floatation type wave-damping, trash-holding and filtering device; mounting the floatation type wave-damping, trash-holding and filtering device; arranging a floating body; arranging a filtering device. The method has the advantages that after the device is arranged at a joint of two streams of water current, the influence of the fluctuation of water current on one side on the other side can be lowered remarkably, the diffusion of floating pollutants can be blocked remarkably, and the delivery rate of suspended sediment is lowered; a blocking state can be automatically kept up and down along with the rise and fall of the water level.

The invention belongs to the technical field of virtual simulation, and particularly relates to a simulation test system and method for ship wave resistance increasing performance analysis. The systemcomprises a model creation unit used for creating a numerical wave pool model and establishing a ship model based on main scale parameters of a target ship; a grid division unit which is used for determining a calculation area and generating discrete grids; a wave making unit which is used for generating regular waves for the ship wave resistance increasing test according to preset wave load parameters; and a resistance increasing test unit which is used for calculating motion response and wave resistance increasing when the target ship sails at a preset navigation speed under the regular waves through CFD, and carrying out wave resistance increasing prediction on the target ship at different wavelengths and different navigation speeds. According to the system, the test cost is reduced, the test period is shortened, and the efficiency of research and development work is improved; compared with theoretical calculation, the system can consider the influence of fluid viscosity, the experimental result is high in reliability, and the reference value is higher.

The invention discloses an ecological damaged revetment repairing structure. The ecological damaged revetment repairing structure comprises a pile foundation concrete structure, a placement platform, prefabricated cylinders and prefabricated wedge blocks. The prefabricated cylinders are vertically installed on the placement platform; concrete is poured between every two adjacent prefabricated cylinders in situ to achieve seamless connection; the prefabricated wedge blocks are fixed to the bottom between the every two adjacent prefabricated cylinders; the placement platform is arranged on the pile foundation concrete structure near the water side and a lower structure of an original revetment; and square piles are inserted and struck into the side near the water of the lower structure of the original revetment, and concrete is poured to form the pile foundation concrete structure. The ecological damaged revetment repairing structure can reduce the cost of a revetment repairing project, reduce carbon emission, improve the ecological feature of the revetment, achieve recycling of dismantled old materials, improve the construction progress and weaken the ship wave function.

The invention belongs to the technical field of ship slamming pressure forecasting, and particularly relates to a real ship slamming pressure peak forecasting method. The falling body slamming test system is mainly composed of a movable bracket, a gliding module and a hoisting module. The whole mechanism slides along the track of the towing tank at a certain horizontal speed by dragging the bracket through the traction device. The test piece is lifted and released through the lifting module, so that the test piece slides down in the vertical direction. Fnally, the slamming load test of simulating the horizontal speed and the vertical speed between ship waves at the same time is realized, and compared with a traditional falling body slamming load test device, the falling body slamming load test device can more truly reflect the actual situation of ship wave slamming. A dimensionless slamming coefficient Km of an equal-ratio reduction model of a to-be-tested real ship is calculated through a falling body slamming test, a predicted value Ps of a slamming pressure peak value of the real ship can be obtained by predicting the navigational speed Vs of the real ship, strength checking and optimization design are carried out, and a theoretical and test basis is provided for design and checking of the real ship.

The invention discloses a towing device. The invention belongs to the technical field of ship wave load measurement. The device comprises a towing bracket in fixed connection with a ship model; two first pulling ropes, wherein one end of each first pulling rope is connected with one free end of the towing bracket through a connecting device; and two second pulling ropes, wherein one end of each second pulling rope is connected with the other end of the corresponding first pulling rope through a tension sensor, and the tension sensors are used for measuring tension between the first pulling ropes and the second pulling ropes; two fixing devices connected with the other ends of the second pulling ropes respectively. The towing device has the beneficial effects that the towing device is provided for assisting in measuring the wave load borne by the typical cross section of the ship body at the navigational speed, installation is convenient, and the towing device can be used in all waves directions.

The invention discloses an underwater acoustics and pressure combined ship detection device and a detection method thereof. The existing methods of ship detection mainly include video surveillance, active acoustic detection, passive acoustic detection, and AIS automatic identification system and synthetic aperture radar remote sensing detection. The underwater acoustics and pressure combined ship detection device comprises an integrated control unit and m detection devices. Each node information processing unit comprises a hydrophone, a second AD conversion module, a sound signal processing module, a first storage module, a first decoding module, a second encoding module, a second communication module, a pressure signal processing module, an equipment self-check module, a wave power generation module, a second battery, and a second power control module. Underwater sound is detected preliminarily through the hydrophones. When an abnormal signal is found, pressure sensors are activated to detect the surface wave and identify ship wave from the surface wave. The energy consumption for detection is reduced, and the service time is increased.

A wave integrated measurement system during ship navigation comprises a ship model, a ship wave measurement device, a hull wave impact pressure measurement device, a wave climbing height measurement device and a wave wall testing device. According to the wave integrated measurement system during ship navigation, the ship wave, the wave impact pressure, the wave climbing height and the wave wall performance can be measured in an integrated manner so that the wave integrated measurement system during ship navigation is convenient and efficient.

The invention discloses a method of preventing a ship from sinking and grounding when entering and leaving a special restricted waterway, and belongs to the technical field of ship transportation. The method of preventing the ship from sinking and grounding when entering and leaving the special restricted waterway specifically comprises the steps of S1, data collection; S2, data arrangement and classification; S3, data processing, wherein calculation is conducted according to collected data and data obtained by inquiring charts, and the calculation content comprises an average sinking quantity delta H1, an actual underkeel clearance delta H3 and a ship wave amplitude delta H2. According to the method of preventing the ship from sinking and grounding when entering and leaving the special restricted waterway, calculation of the actual underkeel clearance delta H3 and the ship wave amplitude delta H2 is added to an existing method of preventing the ship from sinking and grounding when entering and leaving the special restricted waterway, the calculation of the actual underkeel clearance delta H3 and the ship wave amplitude delta H2 is taken into consideration of factors of ship operation condition when it is judged that whether sinking and grounding will occur on the ship or not when the ship enters and leaves the special restricted waterway, and in this way, the effect of preventing the ship from sinking and grounding when the ship enters and leaves the special restricted waterway can be achieved better.

The invention provides a bow island type semi-submersible ship form and belongs to the technical field of ship design. The bow island type semi-submersible ship form comprises an inclined side moldedline connected to the hull bottom through an arc bilge; a bow island is arranged at the upper part of a ship bow; the hull bottom comprises a short bulbous bow and a tail rising bottom, wherein the short bulbous bow is arranged on the ship bow and the tail rising bottom is on the stern; a port and a starboard of the short bulbous bow from the ship bow to the stern are in gradually widened smooth curve transition; and the bow island and the ship bow are in linear smooth transition and are gradually amplified to the breadth. According to the bow island type semi-submersible ship form, the favorable interference between the bulbous bow and a main hull is realized, the ship wave-making resistance is reduced, the operation requirement of multiple draft states of a semi-submersible ship is satisfied, the navigation performance of the semi-submersible ship within a larger draft range is also taken into consideration, the seakeeping performance during light draft is improved, the bow island satisfies the stability requirement in the submerging operation process, bow slamming resistance is improved, the cargo carrying area of a rear deck is increased because buoyancy tanks can also be placed, the weight of the structure is reduced, the loading capacity of tail ballast water is reduced, and the building and operation cost is reduced.

The invention discloses an ecological riverside zone of a navigable river channel. The riverside zone comprises an ecological purification section and an animal channel compensation section which arearranged at intervals along the river channel; the ecological purification section is provided with an ecological anti-impact zone (30), a retaining wall (31) and a wave dissipation purification wetland (32); the animal channel compensation section is provided with a biological buffer passage (20) and a biological buffer pond (21); a land area transition zone (4) is arranged behind the ecologicalpurification section and the animal channel compensation section; and a water-permeable pile body (201) is arranged on the biological buffer channel (20). According to the ecological riverside zone, water and soil of a bank slope can be protected, a ship wave can be reduced, so that sites for foraging and inhabiting are provided for aquatic animals such as fishes, shrimps, shellfishes and snails;meanwhile, an amphibious animal channel is also arranged, so that living space for the amphibious animals is guaranteed; and the effects of filling filtration, plant absorption and the like are utilized, so that the pollution load in a water body is reduced, and therefore the normal growth of riverside wetland plants and purification of the water quality in the river channel are guaranteed.

A dynamic positioning ship wave frequency model parameter estimating system based on moving horizon estimation relates to the ship dynamic positioning field, specifically to a dynamic positioning ship wave frequency model parameter estimating system which solves the problem that in the prior art, the precision is undesirable when bandpass filtering is employed in an ocean wave filtering process. The dynamic positioning ship wave frequency model parameter estimating system comprises a wave frequency model parameter estimating function starting module, a time window extraction module, a measurement information sequence extraction module, a dominant frequency predictor, a high pass filter, a moving horizon estimator and a model parameter estimation ending module, wherein the dominant frequency predictor obtains dynamic positioning ship position and heading measurement information and conducts rapid Fourier transform to obtain a spectral curve and determine initial wave frequency model parameters, the high pass filter filters the measurement information to estimate wave frequency motion component, and the moving horizon estimator estimates the wave frequency model parameters and wave frequency motion. The dynamic positioning ship wave frequency model parameter estimating system is applicable to dynamic positioning ship wave frequency model parameter estimation.

The invention relates to a digital novel relative ship wave speed measuring device. The digital novel relative ship wave speed measuring device comprises a high-precision signal module, wherein the high-precision signal module are connected with a dynamic data acquisition instrument and a power supply through communication cables respectively; a capacitive sensor is mounted on the high-precision signal module; the capacitive positive electrode of the capacitive sensor is a tantalum wire, and the negative electrode thereof is a copper wire; one end of the tantalum wire is connected to the high-precision signal module and is fixed by fitting the side surface of a ship hull; the other end of the tantalum wire is fixed to the bottom surface of the ship hull; one end of the copper wire is connected to the high-precision signal module; the other end of the copper wire stretches into water where the ship hull is positioned; the dynamic data acquisition instrument transmits data acquired fromthe high-precision signal module to a computer. The digital novel relative ship wave speed measuring device is simple in structure and convenient to operate, can quickly and accurately measure the relative motional speed of a ship wave and provides an accurate and effective data support for research and calculation of a slamming load.

The invention discloses ship wave energy electricity generating equipment. The ship wave energy electricity generating equipment comprises a top seat, an electric generator, a float assembly and a height regulator. The top seat is fixed to the end of the adjusting end of the height regulator, the height regulator is fixed to a base, and the base is arranged in a ship; and the electric generator isfixed to the upper surface of the top seat, the electric generator is driven by a belt pulley fixed to the input end of the electric generator to rotate to generate electricity, the belt pulley is connected with the float assembly by using ropes, the float assembly is placed on the water surface and can swing up and down with water waves, and then the belt pulley is driven to rotate. In the shipwave energy electricity generating equipment, a transmission structure of a gear arranged in a float seat and a follower wheel can make up the defect of the small amplitude of heaving up and down by using greater heave impact force of the waves up and down, and the overall electric generation efficiency is improved.

The invention belongs to the field of river channel bank protection design and environmental ecological engineering, and particularly provides a plank road type ecological bank protection. According to the technical scheme, the ecological bank protection is a step-type composite slope, and a lower-level gentle slope, a higher-level gentle slope and a water bank slope are outwards and upwards arranged along a navigation area of a river channel in sequence; a lower-level retaining wall is arranged between the navigation area and the lower-level gentle slope, and the higher-level retaining wall is arranged between the lower-level gentle slope and the higher-level gentle slope; and a pile leg of a first fixed supporting pile is poured into the lower-level retaining wall, an anti-wave baffle isarranged on the outer side of the first fixed supporting pile through an anti-wave baffle fixing rod, a pile leg of a second fixed supporting pile is buried into a slope base in the range of the lower-level gentle slope and the higher-level gentle slope in an inserted mode, and an anti-wave plank road is arranged on the first fixed supporting pile and the second fixed supporting pile. The plank road type ecological bank protection is suitable for a navigable river channel and a river bank or lake bank violently scoured by winds and waves, can be used for recovering and reconstructing rivers and lakeside zone aquatic plant communities, preventing the adverse effects of ship wave on growth of aquatic plants, and has good landscape performance and hydrophilicity.

The invention discloses a retractable adjustable-distance ship wave propulsion device, which comprise double ship bodies, a horizontal regulation component, a height regulation component, a wing component and a floater component, wherein each trapezoidal wing is hinged to a floater connecting rod through a connecting rod and is connected with a lifting rack through a rotation shaft; the lifting rack is meshed with a gear; a gear motor controls the water entry depth of each trapezoidal wing, and each trapezoidal wing rotates around a rotation shaft; the horizontal regulation component pushes the corresponding component to be horizontally regulated through the work of a telescopic motor so as to realize the horizontal distance regulation of the wing; and the floater heaves on a free liquid level, and the vertical movement of the floater drives the trapezoidal wing to rotate through the connecting rod so as to generate power required for the ship to advance. The device belongs to a passive vibration hydrofoil, the floater is adopted to adsorb the wave on the free liquid level to a maximum degree to drive the hydrofoil to rotate, and therefore, the problems that the hydrofoil must be immersed for a certain depth for guaranteeing that the hydrofoil can not come out of water in the wave and wing movement amplitude is reduced exponentially along with the increase of the immersion depth can be solved.

The invention discloses a ship wave removing type revetment structure. The ship wave removing type revetment structure comprises a sparse piles, densely arranged sheet piles and a bearing platform. The spare piles are arranged on the shore side of a channel, the densely arranged sheet piles are arranged on the landside of the channel, and the bearing platform is arranged on the sparse piles and the densely arranged sheet piles. In addition, the invention discloses a construction method of the ship wave removing type revetment structure. By means of the embodiment, the sparse piles are adoptedfor removing ship waves, the densely arranged sheet plates are adopted for blocking water and soil, and the technical problems that in the prior art, environmental friendliness is not achieved, the ship waves in the channel cannot be effectively weakened, and a revetment structure cannot be constructed and built in an area with relatively narrow construction space to meet channel improvement and building needs are solved.

The invention relates to the technical field of ship wave testing, in particular to a wave simulation test device of a ship model. The test device comprises a towing fixed frame, a bearing column, a differential block and a force transmitting member. The bearing column is vertically arranged and is connected with the towing fixed frame. A buffering device and a sliding rod support are arranged atthe lower end of the bearing column; and a horizontal sliding rod is arranged at the sliding rod support. The differential block is connected with the horizontal sliding rod cooperatively through a linear bearing. The force transmitting member is arranged below the differential block at an interval and is connected with the differential block cooperatively. A tension sensor is disposed between thedifferential block and the force transmitting member; and a disc brake is disposed between the buffering device and the differential block. A direct connection mechanism is arranged between the buffering device and the force transmitting member. On the basis of the reasonable structure, a pneumatic claw captures a starting rod and thus the bearing column and the force transmitting member are in rigid connection when the trail car drives the test device and the ship model for starting; after speed stabilization, the pneumatic claw releases the rod for disconnection; the pneumatic disc brake clamps a braking piece synchronously and thus the buffering device and the differential block are connected, so that the sensor is protected effectively.

The invention discloses a wave encountering period-based wave richness depth calculation method. The method comprises the following steps of 1, determining the ship scale parameters; 2, determining aninherent period of a ship; 3, determining the wave design elements; 4, determining a ship wave included angle psi; 5, calculating a wave encountering period Te; 6, determining a keel sinkage amount response amplitude operator; 7, calculating the keel maximum sinkage amount ZK; 8, calculating a maximum rolling angle theta m; 9, calculating the maximum sinkage amount ZBK of the bilge keel; 10, taking the larger one as the wave richness depth (Z2) psi j;11, when the ship wave included angles are not unique, calculating the wave richness depths (Z2) psi j corresponding to all the ship wave included angles, and taking the largest one as the final wave richness depth Z2. The method can more accurately reflect the influence on the wave rich depth when the ship generates the harmonic oscillationmotion, has the safer design value, adopts a single-variable multi-parameter empirical formula, and is relatively simpler and more convenient in operations.