381 results about "Wave resistance" patented technology

The invention relates to a wave energy generating system. The system utilizes a floating body to receive the thrust of wave; a rope of which one end is tied on the floating body and of which the other end is wound on a rotating wheel pulls the rotating wheel to convert the obtained irregular wave thrust into rotating power; and at the stage of wave fall, the rotating wheel is driven by means of a spiral spring to reversely rotate so as to withdraw the rope. For a buoy lighthouse, the rotating wheel can be directly connected with a generator to rectify and store electricity; for large-scale wave energy generating, the floating bodies can be combined into an array plane, while the rotating wheel achieves energy transfer and collection through a ratchet and a hydraulic system; and finally, a generating set achieves electricity generation. The system is suitable for the waves of most waveforms, can absorb wave energy with high efficiency, has strong wave resistance and low manufacturing cost, and does not need to depend on a shore base to work.

The invention provides a wave power generating system with a floating-body-based rope pulley, relating to a wave energy power generating system and comprising a wave energy collecting part, a power generator and a base, wherein the wave energy collecting part has the mechanism of: pushing a floating body by waves, tightening a rope, further driving a rotating wheel arranged on the floating body to apply work, and outputting mechanical energy to realize the collection of wave energy; and in a wave dropping step, reversely rotating the rotating wheel by using small force, withdrawing the rope, pulling and withdrawing in the way, and continuously circulating. The wave energy collecting part is used for supplying power to the power generator to generate power. The wave power generating system can adapt to most shapes of waves and has the advantages of strong wind and wave resistance, low cost and easy maintenance.

The invention relates to a composite material offshore very-large floating structure. The composite material offshore very-large floating structure comprises a plurality of detachably-connected module units; every module unit is composed of a plurality of connected floating structures; every floating structure is composed of a first floating piece, a second floating piece and a plurality of connecting pieces, wherein the plurality of connecting pieces are connected at intervals, both ends of every connecting piece are connected with the first floating piece and the second floating piece respectively to form a plurality of connecting I-steel structures. The composite material offshore very-large floating structure is made of composite materials which are composed of base materials and reinforcing materials, wherein the base materials are vinylester resin, unsaturated polyester resin, epoxy resin or phenolic resin, and the reinforcing materials comprise felt cloth and fiber cloth. Therefore, the module units can be low in weight, easy to drag, capable of achieving rapid assembly and disassembly, convenient to transport and good in dynamic performance; the composite materials are less prone to erosion by seawater and accordingly improve the anti-erosion performance; the plurality of connected I-steel structures can enhance the wind and wave resistance.

The invention relates to a method which uses geophysical exploration to determine stratum lithology and pore-fluid. The method of the invention adopts recorded three-component VSP seismic wave field, obtains zero offset seismic wave field, calculates the transmission longitudinal wave P of the seismic wave field of sampling points of different depths, then calculates the reflecting coefficients and wave resistances of the longitudinal wave and the transverse wave; according to the obtain stratum wave resistance changing curve, compared with the known logging data, the lithology and the pore-fluid property of the stratum can be determined. The method of the invention can provide directly the wave resistance changing curve of deep domain, avoids the problems of multiplicity of the speed-depth, limited wideband and low resolution, has high resolution, sufficiently uses the advantages of three-component VSP, can provide resistance longitudinal wave and transverse wave and azimuth and inclined angle of the stratum simultaneously under a situation without transverse wave seismic source excitation, and provides beneficial bases for determining the change of the stratum lithology and the pore-fluid property.

The invention discloses anti-electromagnetic-radiation-resistant anti-cracking concrete and a preparation method thereof, wherein the concrete is prepared from the following raw materials: 135-155 kg/m<3> of water, 320-380 kg/m<3> of cement, 20-40 kg/m<3> of fly ash, 600-800 kg/m<3> of fine aggregate, 950-1150 kg/m<3> of coarse aggregate, 2.0-3.0 kg/m<3> of a reducing toughening agent, 10-20 kg/m<3> of an inner curing agent, 3.0-5.0 kg/m<3> of a water reducing agent, 40-50 kg/m<3> of steel fibers, 2.0-3.0 kg/m<3> of a wave absorbing material, and other raw materials. The concrete of the present invention has characteristics of enhanced toughness, enhanced compactness, enhanced crack resistance, enhanced impact resistance, enhanced impermeability, and radiation wave resistance.

The invention discloses a small waterplane area twin-hull ship type marine monitoring buoy platform which comprises two torpedo-shaped lower submerged bodies, an upper hull platform and a streamline strut, wherein the torpedo-shaped lower submerged bodies are placed underwater and provide most of buoyancy; the upper hull platform is above the water surface; the streamline strut connects the lowersubmerged bodies and the upper hull; fixed rudders for positioning are arranged at the rear parts of the lower submerged bodies; a multisection type streamline probe box which is connected to the lower end of the upper hull platform is arranged between the two lower submerged bodies; the side surface of the multisection type streamline probe box is provided with a small hole through which the water flows; the multisection type streamline probe box is set to be easy to separate from the upper hull platform under the impact of external force; each section of the streamline probe box is providedwith an anchor bolt, each anchor bolt is fixedly connected with an anchor chain, and an anchor is connected to each anchor chain. The invention has the advantages of good sea area adaptability, smallsplashing area volume, strong wind and wave resistance, good stability, large load, large platform area, small resistance in waves, sufficient energy supply, good equipment expansibility, convenient maintenance, and the like.

A novel rod linkage for driving a heddle shaft includes at least one strap (16), which for damping oscillation has a sandwich structure (37) oriented in the longitudinal direction (L) of the strap assembly (16). The sandwich structure includes at least one rigid element (27), extending in the longitudinal direction, which is joined to one end (17) of the strap assembly (16); a second rigid element (31), likewise extending essentially in the longitudinal direction, which is joined to the other end (19); and a two-dimensional damping element (34), again extending in the longitudinal direction, disposed between the first two. The element (34) exclusively effects the mechanical connection of the two parts (16a, 16b) of the strap assembly (16). Preferably, no additional connecting elements, such as rivets, screws, or other rigid connections, between the rigid elements (27, 31) are provided. Preferably, the rigid elements (27, 31) are embodied as wedges pointing in opposite directions, which thus define a wave resistance that varies in opposite directions in the longitudinal direction. This wave resistance brings about an intentional coupling misadaptation with respect to the oscillation transmission. The element (34) disposed between them damps the oscillations additionally, so that the strap assembly (16) transmits driving motions like a filter and destroys or absorbs interfering oscillations.

The invention relates to a fitting part in a tank truck, in particular to a waving resistance device in the tank truck and the tank truck with the same. The waving resistance device comprises a main body and a fixing base, wherein the fixing base is arranged at the top of the main body and is provided with an air inlet-outlet servo control device, and the main body is a soft air-tight capsule body. The waving resistance device is made of soft elastic materials instead of a traditional waving resistant plate made of hard materials, such as metal and the like, thereby performing the upgrade from a one-dimensional waving resistance to three-dimensional waving resistance, effectively absorbing the energy of fluid waves in the tank, reducing impact to the tank from waves, improving the effect of the waving resistance and ensuring the service life of the tank and the stable running of the tank truck.

The invention relates to a method for monitoring and calculating a subsynchronous oscillation mode from an electric generating set in real-time when a power house and an electric power system generate subsynchronous oscillation (SSO) and discloses a method for obtaining a shafting torsional oscillation mode of a steamer electric generating set through combining a main filter, a starting filter and a narrow band wave-resistance filter. The method works out the change of a rotary palstance (dw) of an electric generating shafting through a rotary speed pulse of a rotary speed sensor arranged on the electric generating set shafting and works out an instant value of each mode of the electric generating set shafting torsional oscillation with linear phaseshift through the combination algorithm of a broad band filter combined by the main filter and the narrow band wave-resistance filter; a dw signal is combined with the narrow band wave-resistance filter by passing through the starting filter to be a mode starting condition. The method can be used for restraining the subsynchronous oscillation (SSO) steamer electric generating set into a subsynchronous oscillation damp controller (SSODC).

The invention relates to a full-aircraft power-free model basin test method for wave resistance of a water surface aircraft. The test step includes a) full-aircraft power model testing and installation: a full-aircraft power-free model (1) is installed on an airworthiness instrument (8) which is under a hydrodynamic force high-speed test trailer system (12) through a sliding device, the sliding device ensures that the full-aircraft power model (1) can move up and down in a certain range and freely move forwards and backwards along the airworthiness instrument (8), a gravity center support rod(7) is movably connected with the full-aircraft power-free model (1), a movable connection point of the gravity center support rod (7) and the full-aircraft power-free model (1) should take a gravitycenter position point of the full-aircraft power-free model (1), a hinge is adopted for a hinge joint, and the full-aircraft power-free model (1) can freely perform pitching rotation around the gravity center position point. The full-aircraft power-free model basin test method for wave resistance of a water surface aircraft has the advantages that the method is practical, feasible and simple to operate, a test result is reliable, and the range of application is wide.

A small infrared sensor has a wide infrared light-receiving area (viewing angle), high electromagnetic shielding characteristics, and excellent electromagnetic-wave resistance characteristics. In the infrared sensor, supporting portions are disposed at four corners of a substantially rectangular opening in a package. The supporting portions support an optical filter, disposed so as to cover the opening, at positions that are lower than an upper end of an inner peripheral wall defining the opening. While the optical filter is supported by the supporting portions as a result of inserting a portion of a surface side of the optical filter facing the supporting portions into the opening, the optical filter is secured to the package. The optical filter and the package are joined and secured, and electrically connected to each other through a conductive adhesive.

The invention relates to a wave-powered generating device belonging to the field of hydraulic machinery or hydraulic generators, and aims to provide a device for continuously generating electricity by utilizing waves. The wave-powered generating device comprises a shell which is anchored on seabed; floating ball generating systems are arranged in the shell and mounted on a rotating shaft; the system comprises a spring, a ligament, a ratchet wheel mechanism and a transmission wheel, wherein the ratchet wheel mechanism comprises a small flywheel and a ratchet wheel; the small flywheel and the transmission wheel are fixedly mounted on the rotating shaft; the transmission wheel drives a gear in a gearbox to rotate; the ratchet wheel is in a box shape; the small flywheel is arranged in the ratchet wheel; a pawl is arranged on the inner circumferential surface of the ratchet wheel; the outer circumferential surface is wound by the ligament, one end of which is fixed on the ratchet wheel; and the other end is connected with the floating ball which is arranged on the exterior of the shell; the sealing side of the ratchet wheel is connected with the spring which is wound on the rotating shaft; the other end of the spring is fixed; and the shell is internally provided with at least two floating ball generating systems. The invention has simple structure, convenient use, strong wave resistance, low manufacture and construction costs and long-term use without manual maintenance.

The invention relates to an embedded ecological slope protection component, comprising a building block body, wherein the building block body is provided with a vegetative hole in the middle; the building block body is of a rectangular or square structure; four sides of the building block body are respectively provided with a connector; the outside of each connector is provided with a clamp slot or a connection block; the upper and lower surfaces of each connector are respectively provided with a wave resistance convex platform. The embedded ecological slope protection component has the beneficial effects that the slope protection component is provided with the vegetative hole, vegetation at a water channel slope above the water surface can grow through the vegetative holes, and thus the overall soil fixation effect of the slope protection component is increased; soil microbes can decompose the organic matter in water, and thus the water body is purified; the wave resistance convex platforms are arranged on the slope protection component, so that the fixing effect of the slope protection component is enhanced, and the destruction on the vegetation above the water surface and vegetation root soil is reduced.

The invention relates to a composite ecological intercepting padding material and a preparation method. The composite ecological intercepting padding material has an interception effect on nitrogen and phosphorus pollutants greatly increased due to urban storm flows and also has wave resistance and soil reinforcement effects on revetments for rivers and lakes. The padding material is prepared into a modularized revetment material with nitrogen and phosphorus absorption property and a large number of micro air spaces through the sintering method by using the nitrogen and phosphorus absorption function and the thermal stability of a special padding material. The padding material can restore a water body with a great change in load due to nitrogen and phosphorus pollution through the bio-contact degradation function and the absorption function, optimize and improve the water quality restoration function of the ecological revetment technology and solve the problem on placing and fixing the padding material in river and lake water bodies.

An embodiment of the invention provides an operation/maintenance control method and an operation/maintenance control device of an offshore wind farm, and an offshore wind power system. The operation control method comprises the steps of receiving a request for executing operation on the offshore wind farm; acquiring information of first sea condition of the offshore wind farm, and determining an offshore operation/maintenance ship according to first motion response parameters of a plurality of operation/maintenance ships in a first sea condition; acquiring first navigation route information of the offshore operation/maintenance ship to the offshore wind farm, and transmitting an operation instruction which comprises the first navigation route information to the offshore operation/maintenance ship. The wind/wave resistance of the offshore operation/maintenance ship which is selected according to the first motion response parameters of the plurality of operation/maintenance ships in the first sea condition matches the first sea condition of the offshore wind farm, thereby ensuring high safety of the offshore operation/maintenance ship in the navigation process and high comfort of personnel in the offshore operation/maintenance ship.

The invention relates to a concentric double-ball lifeboat which comprises an outer ball and an inner ball. The inner ball is arranged in the outer ball, the outer ball and the inner ball are concentric, power devices are arranged on the outer ball, a sandwich layer space is arranged between the outer ball and the inner ball, the inner ball comprises a shell and a cavity, and the cavity of the inner ball is arranged in the shell and is communicated with spaces outside the concentric double-ball lifeboat via an access passage in the sandwich layer space. The concentric double-ball lifeboat has the advantages that escape persons can be positioned in the cavity of the inner ball of the concentric double-ball lifeboat, external disturbance can be prevented from being transmitted into the inner ball via the outer ball when the concentric double-ball lifeboat shakes in intense wind and wave environments, and accordingly the concentric double-ball lifeboat is excellent in inherent wind and wave resistance; the concentric double-ball lifeboat can be in a water surface working mode and a submergence working mode; the concentric double-ball lifeboat in the submergence working mode can effective adapt to surviving in offshore fire and explosion scenes as compared with existing totally enclosed type lifeboats, can effectively avoid high-temperature and harmful gas during sea surface oil gas fire and can assist the escape persons to escape from the fire scenes from the optimal directions when the submergence depths of the concentric double-ball lifeboat exceeds the draft of the concentric double-ball lifeboat.

The invention discloses a pipe rack type cage-shaped large-sized anti-flow wind and wave resisting aquaculture net cage which comprises an inner floating pipe ring formed by welding multiple sections of arc-shaped inner floating pipes, an outer floating pipe ring formed by welding multiple sections of arc-shaped outer floating pipes, multiple horizontal supporting pipe rings formed by welding multiple sections of arc-shaped horizontal supporting pipes and multiple vertical pipes, wherein the inner floating pipe ring and the outer floating pipe ring form inner and outer concentric circular ring bodies located on the upper layer, so as to provide buoyancy for the whole net cage; the horizontal supporting pipe rings and the inner and outer floating pipe rings realize up-and-down connection through the vertical pipes, so as to form a cylindrical structural body; a cage net and a cage net tightening rope are arranged on the inner side of the cylindrical structural body. By the adoption of split connection pieces, the pipe rack type cage-shaped large-sized anti-flow wind and wave resisting aquaculture net cage is simple in structure and convenient to assemble; aquaculture water for the net cage in a high-flow-velocity sea area is guaranteed, and the structural strength and the wind and wave resistance of the net cage are improved; the aquaculture net cage can be applied to on-site installation in a sea area farther to the shore and a coral reef sea area near to an open-sea island and used as an anti-flow wind and wave resisting aquaculture device; furthermore, the aquaculture net cage has important significance for proclaiming the sovereignty and safeguarding the territorial integrity.