96 results about "Core energy" patented technology

The invention discloses a buckling control support with diamond type energy dissipation units at the ends. The buckling control support is characterized by being composed of end restraint sections, energy dissipation sections and a straight supporting section, wherein the two ends of the buckling control support are connected with beam and column members or joints into a whole through high-strength bolts to achieve the purpose of improving the lateral stiffness of the members. The buckling control support with the diamond type energy dissipation units at the ends maintains resilience under the action of a small earthquake and enters a yield stage under the action of a medium earthquake or a major earthquake, and the effect of a damper can be achieved due to the good hystersis energy dissipation performance of the buckling control support. Compared with a traditional buckling control support, the procedures of adding a sleeve outside a core energy dissipation member, performing grouting and the like in the traditional manufacturing process are omitted in the manufacturing technology, and manufacturing is convenient; the support can be prefabricated in a factory, the member quality is guaranteed, the workload of site construction operation is reduced, and energy conservation and environment protection are achieved.

The invention discloses an energy dissipation type buckling constraint support with a symmetrical initial imperfection unit at the end. The energy dissipation type buckling constraint support is characterized in that the support is composed of an end constraint segment, an energy dissipation segment and a support straight segment; and the two ends are connected with beams or column components or nodes to form a whole through bolt connection so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The energy dissipation type buckling constraint support with the symmetrical initial imperfection unit at the end is adopted, and thus under the action of a small earthquake, the buckling constraint support keeps elasticity; and under the action of a medium earthquake or a severe earthquake, the buckling constraint support enters a yield stage, and the effect of a damper can further be achieved through the good hysteretic energy dissipation performance of the buckling constraint support. Compared with traditional buckling constraint supports, according to a manufacturing technology of the energy dissipation type buckling constraint support, the processes of adding a sleeve outside a core energy dissipation component, grouting and the like in the traditional manufacturing process are avoided in the manufacturing technology, so that manufacturing is convenient. The energy dissipation type buckling constraint support can be prefabricated and formed in a factory, the quality of the components is ensured, the workload of site operation is reduced, and energy conservation and environment protection are achieved.

The invention discloses a buckling control support with bidirectional pyramid-shaped energy dissipation units at the ends. The buckling control support with the bidirectional pyramid-shaped energy dissipation units at the ends is characterized in that the buckling control support is composed of end restraint sections, energy dissipation sections and a straight supporting section, and the two ends are connected with beam or column components or joints into a whole through bolts, so that the purpose of increasing the resistant-lateral rigidity of a component is achieved. By the adoption of the buckling control support with the bidirectional pyramid-shaped energy dissipation units at the ends, under the small shock action, the buckling control support is kept elastic; and under the medium or great shock action, the buckling control support is switched to a buckling stage, and a damper effect can be achieved through the good hysteretic energy dissipation performance of the buckling control support. Compared with a traditional buckling restraint support, the steps of additional arrangement of a sleeve outside a core energy dissipation component, grouting and the like in a traditional manufacturing process are omitted on the aspect of the manufacturing technique, and manufacturing is convenient; and the support can be prefabricated in a factory, the quality of the component is guaranteed, the filed construction workload is reduced, energy is saved, and environmental friendliness is achieved.

A heterogeneous multi-core energy-saving task schedule method based on improved genetic algorithm comprises the improved genetic algorithm used for determining task priority and energy-saving schedule algorithm based on zooming priority. The flow of the heterogeneous multi-core energy-saving task schedule method includes (1), initializing population information; (2), entering a loop body and determining the task priority by the aid of genetic algorithm; (3), determining schedule sequence of tasks on a processor according to a task DAG (directed acyclic graph) and division strategies; (4), realizing dynamic voltage zooming on the basis of feasible task schedule according to relation of saving energy of the tasks and prolonging time; (5), calculating fitness of a current population and sorting the current population; and (6), updating the population by the aid of the improved genetic algorithm, determining new task priority, quitting if termination conditions are met, and continuing iteration if the termination conditions are not met.

The invention discloses a buckling-restrained shearing steel plate energy dissipation device with clamping plates. The energy dissipation device comprises a core energy dissipation component, a buckling-restrained device, a top plate and a bottom plate, the core energy dissipation component is a rectangular energy dissipation steel plate, the top plate and the bottom plate are fixedly connected at the upper end and the lower end of the rectangular energy dissipation steel plate respectively, the buckling-restrained device comprises two clamping plates, four guide trough plates and stiffening ribs, the two clamping plates are arranged on the front side and the rear side of the rectangular energy dissipation steel plate respectively, the upper ends of the two clamping plates are fixed with the top plate, the four guide trough plates are fixed on the bottom plate and limit movement of the lower ends of the two clamping plates respectively, and the stiffening ribs are arranged on one lateral surface, departing from the rectangular energy dissipation steel plate, of each clamping plate. By the buckling-restrained shearing steel plate energy dissipation device with the clamping plates, slotting or punching of the core energy dissipation component can be avoided, and the stiffening ribs can be prevented from being directly welded on the core energy dissipation component. By the aid of the buckling-restrained device, out-of-plane deformation of the core energy dissipation component can be limited effectively, bearing capacity is enhanced, and hysteretic behavior is improved.

The invention discloses a system for sensing a VCSEL (Vertical Cavity Surface Emitting Laser) based ultrahigh-speed FBG (Fiber Bragg Grating). The system comprises a VCSEL laser light source, a sensing probe and a photovoltaic conversion module, wherein the sensing probe comprises an inclined FBG and a cladding-fiber core energy re-coupling structure; the photovoltaic conversion module comprises a vibration information demodulating part and an attenuation reference obtaining part; an external data processing device gives a normalized output of the system. The realization method comprises the steps of: outputting high-speed periodically modulated laser to an optical fiber coupler by the LCSEL laser light source, wherein one path of optical signals are subjected to attenuation of an attenuator and photovoltaic conversion to obtain reference electric signals, and the other path of optical signals enters into an optical fiber probe to obtain reflected light signals including environment vibration information and then is subjected to the photovoltaic conversion to obtain vibration electric signals; and dividing the reference electric signals by the vibration electric signals to obtain the normalized output of the sensing system. The system and method for sensing VCSEL based ultrahigh-speed FBG, disclosed by the invention, have the advantages of ultrahigh-speed (higher than MHz) and high-sensitivity (superior to 15 dB) vibration sensing, high system integration level, low cost (no need of filtering), normalized output for removing temperature change influence and high stability.

A method for radiation based additive manufacturing of a three-dimensional object from powdered material is disclosed, wherein a plurality of layers of the powdered material are provided in a layer providing direction and are irradiated layer by layer, and the plurality of layers comprises an overhang layer with a core region and a down-skin region for forming a core portion and an overhang portion of the manufactured three-dimensional object, respectively, the core region extending in the layer providing direction on top of an irradiated region of a directly preceding layer and the down-skin region extending on top of a previously nonirradiated region of the directly preceding layer. The method comprises generating the directly preceding layer of the overhang layer, and generating the overhang layer by providing a core energy density into the core region at least up to a preset distance from a transition to the down-skin region, and providing a slope depending overhang energy density into down-skin micro-regions of the down-skin region, wherein the slope depending overhang energy density differs from the core energy density by a down-skin reduction that depends on an extent of the respective down-skin micro-region beyond the respective core region of the directly preceding layer.

The invention belongs to the technical field of damping of civil engineering structure and particularly relates to a double-inner-core buckling-preventive support structure used for damping by energy dissipation. Two I-shaped steel plates are bonded to be as a core energy dissipation component, two wing edge steel plates perpendicular to the I-shaped steel plates are mounted at two ends of the I-shaped steel plates, and cross sections of the I-shaped steel plates and the wing edge steel plates are H-shaped. Porous foam materials are filled on one sides, connected with the I-shaped steel plate, of the wing edge steel plates. The I-shaped steel plates and the wing edge steel plates are wrapped by outer wrapping steel pipes, a part of each wing edge steel plate extends out of the outer wrapping steel pipes, and concrete is filled into the outer wrapping steel pipes. In the double-inner-core buckling-preventive support structure, energy dissipation is realized by steel having excellent plastic deformation property, particularly soft steel, and further, higher hysteretic energy dissipation is realized by means of axial deformation of the steel. The double-inner-core buckling-preventive support structure is novel and reasonable in structure, easy to machine, convenient and flexible to use, high in applicability and capable of effectively improving anti-seismic performance of a building structure and has wide market popularization and application prospect.

The invention provides a metal damper and a design method thereof, and belongs to the technical field of civil engineering structural shock absorption. The damper comprises an upper cover plate, a lower cover plate and a core energy-consuming metal element. The core energy-consuming metal element is a continuous U-shaped slotted metal plate and comprises a circular arc section and two straight sections. A plurality of continuous grooves are formed in the circular arc section and partial straight sections of the slotted metal plate in the width direction at intervals. In design, firstly, the height of the damper is determined according to a building; secondly, the numerical relationship of the thickness of a steel plate, the length of the straight sections and the width of the damper is obtained according to an in-plane resilience formula and an out-plane resilience formula; specific numerical values of the three parameters are adjusted according to an optimizing formula, so that a failure mode, out of expectation, of the damper does not occur; and ultimately, the number of the dampers and the size of a bolt are determined. According to the metal damper and the design method of the metal damper, energy consumption is achieved through metal materials with strong plastic deformation capacity, large longitudinal deformation is achieved through bending deformation, and large sideward deformability and anti-fatigue performance are achieved.

The invention relates to a self-supply pneumatic vehicle, in particular to a self-supply pneumatic vehicle capable of supplying consumed compressed gas in the running process. At present, traffic tools at home and abroad are diverse, and the power is sourced from gasoline, diesel oil, liquefied petroleum gas, natural gas or storage batteries, so that the cost is high, pollution is generated to the environment, and more fundamentally, the energy is limited. An electric vehicle does not use fuel oil and is environmentally-friendly, but the core energy part of the electric vehicle is a storage battery which has low capacity and needs frequent charging, and the rejected storage battery causes environmental pollution. The self-supply pneumatic vehicle comprises an air compressor, a gas storage tank, a pneumatic motor, a worm wheel-worm mechanism, a clutch, a speed change device, a variable-energy speed change device, a generator and a storage battery. The self-supply pneumatic vehicle has a reasonable structure; and the adopted pneumatic motor does not consume gasoline, diesel oil, natural gas or other gases, so that the pneumatic vehicle has no pollution to the environment and is efficient and energy-saving. The gas storage tank is charged along running and can continually work, so that the pneumatic vehicle has long running distance.

A stack-mountedangle ironcardiac structure, a power distribution equipment. Performance location to set up three ground - 1.30-Core stack-loaded, its approximate circular cross-sectional area through upper and lower approximation of the three semi-circular cross-sectional area of iron tablets conjugate inserted three core columns connected together to form a three-dimensional closed triangle magnetic circuit; the structure of the transformer core, magnetic circuit completely symmetrical three-phase, short magnetic circuit small size, less supplies, silicon steel material utilization as high as 99%, No Load Current and Loss greatly decreased, is a highly efficient the transformer core energy saving and environmental protection structure and add new equipment without using conventional plane loaded with Core stack processing equipment can be achieved, and to address the triangular wound core equipment investment, such as coil winding inconvenient inadequate.

The invention discloses a two-stage work metal energy dissipation device. A core energy dissipation assembly comprises a shearing type energy dissipation assembly and a bent energy dissipation assembly; the shearing type energy dissipation assembly comprises two rectangular low-yielding steel sheets fixedly connected with an upper top plate and a lower bottom plate, and the two rectangular low-yielding steel sheets are arranged in parallel; the bent energy dissipation assembly comprises a plurality of bent energy dissipation steel sheets fixedly connected with the upper top plate and the lower bottom plate, the bent energy dissipation steel sheets are parallel with one another and arranged between the two rectangular low-yielding steel sheets in a spaced mode, and meanwhile the bent energy dissipation steel sheets are perpendicular to the two rectangular low-yielding steel sheets. According to the two-stage work metal energy dissipation device, common steel and low-yielding-point steel are combined for use on a materials according to the idea that bent yielding displacement is larger than shearing yielding displacement, the number of bent plates and the number of shearing plates are reasonably set, it is guaranteed that the device can perform yielding work in the two stages of a small earthquake and a large earthquake, structural damage is avoided, and the protection function is achieved.

The invention aims to provide a composite shape memory alloy damper comprising an upper connecting steel plate, a lower connecting steel plate, a core energy-dissipating element, upper perforated steel columns, and lower perforated steel columns. The core energy-dissipating element is fixed between the upper connecting steel plate and the lower connecting steel plate. The upper and lower connecting steel plates have same edges. The upper perforated steel columns are mounted at vertexes of the upper connecting steel plate. The lower perforated steel columns are mounted at midpoints of the edges of the lower connecting steel plate. Both the upper and lower perforated steel columns are arranged between the upper and lower connecting steel plates. Each two adjacent upper perforated steel columns and the lower perforated steel column between the upper perforated steel columns are connected through a shape memory alloy strand penetrating pores in the upper and lower perforated steel columns; fixtures are mounted at two ends of each shape memory alloy strand; the shape memory alloy strands are fixed to the upper perforated steel columns through the fixtures. The composite shape memory alloy damper has the advantages that vertical drawing resistance can be improved, fewer parts are used, mechanical strength is high and stability is good.

The invention relates to an uninterrupted power supply using a lithium iron phosphate battery. The uninterrupted power supply comprises an input filter, an output filter, a manual bypass system, a bypass system, a rectifier system, a charging system, a battery balanced control system, an inverter system, a static switch and a lithium iron phosphate battery. Because the lithium iron phosphate battery made of new materials is used as the core energy-saving battery of the uninterrupted power supply, has a small volume and ensures the high discharge performance of the product, the uninterrupted power supply has the advantages of good discharge performance under the high / low-temperature environment, quick charge, ultra long service life and no elements polluting the environment in the battery, thereby solving the various defects of the battery of the traditional uninterrupted power supply in service.

The invention discloses an automatic energy-saving ventilation child safety seat. The automatic energy-saving ventilation child safety seat comprises a seat body, wherein vent holes are formed in a seat cushion and a backrest of the seat body, the child safety seat also comprises an automatic ventilation system matched with the vent holes, the automatic ventilation system comprises a heat dissipating fan, a mounting box and a driving mechanism, the driving mechanism comprises at least one oscillating wheel, and the power of the oscillating wheel is outputted to the heat dissipating fan. By adopting the technical scheme, no additional electric power or other power is needed, and the energy-saving and environment-friendly effects are better; moreover, the safety potential danger is avoided; the seat body is cooled and ventilated, when a child sits in the seat, the child is dry and cool, so that when the child is fixed in the child safety seat, the heat and sweat accumulated at the back and the hips of the child can be avoided, and the skin of the child can be well protected; and moreover, structure is simpler, the cost is low, the maintenance is simpler, the dustproof performance is high, core energy storing structures are wrapped, the dustproof effect is good, and children can be prevented from being injured even after the damage of the seat.

The invention discloses a double-yield-point linear all-steel buckling-resistant energy-consuming support comprising a core energy-consuming plate, wherein the core energy-consuming plate comprises low-yield-point steel plates (1) and an aluminum alloy plate (2); one aluminum alloy plate (2) is clamped between two low-yield-point steel plates (1) with uniform shapes and specifications, so that the plates are overlapped to form the line-shape core energy-consuming plate; the core energy-consuming plate is embedded in the abdominal cavity of a double-web I-shaped steel constrained component (3) consisting of two pieces of I-shaped steel so as to form the double-yield-point linear all-steel buckling-resistant energy-consuming support; the two ends of the core energy-consuming plate are positioned outside the abdominal cavity of the double-web I-shaped steel constrained component (3) and are used for connecting with an engineering structure. According to the double-yield-point linear all-steel buckling-resistant energy-consuming support provided by the invention, a plurality of energy-consuming plates made of different materials serve as the core, so that the design requirements of staged yield energy consumption under small shake, medium shake and great shake as well as multi-performance standards and targets can be met. The bearing capacity is high and the end parts of the core energy-consuming plate are strengthened without welding, so that a fatigue failure caused by end part welding is avoided.

The invention discloses a full-assembly three-section anti-buckling energy dissipation support, and relates to the technical field of anti-seismic disaster prevention of a building structure. The full-assembly three-section anti-buckling energy dissipation support comprises threaded joints, buckling energy dissipation sections at two ends, an elastic supporting section in the middle and a flange connection. The energy dissipation damping of a whole anti-buckling supporting component is mainly realized by core energy dissipation steel pipes and shape memory alloy springs of the buckling energydissipation section; the threaded joints are formed by machining one ends of the core energy dissipation steel pipes; the elastic supporting section is composed of an elastic supporting steel pipe; and the buckling energy dissipation sections and the elastic supporting section are connected by a flange to form a whole anti-buckling energy dissipation support. In this way, the operations of field assembly, installation, maintenance, replacement and the like in adverse environments such as high altitude can be achieved, and meanwhile the partial self-resetting capability is achieved.

The invention provides a concrete shear wall with a lead core energy-consuming device and a built-in steel plate and a manufacturing method, and belongs to the field of earthquake resistance and disaster prevention and reduction of engineering structures. Connection plates with bolt holes are welded to the middle of the inner side of a structural steel frame, and studs are welded to the two sides of the steel plate with round holes distributed in a diagonal mode. The steel plate is connected with the connection plates with the bolt holes in a splicing and fastening mode through high-strength bolts, cake-shaped lead blocks with round holes are embedded in the round holes distributed in the diagonal mode, tie bars penetrate through the cake-shaped lead blocks with the round holes to be bound with reinforcing mats, and concrete is poured in the two sides of the steel plate with the round holes distributed in the diagonal mode to form the concrete shear wall. Under the action of earthquakes with common intensity, the steel plate shear wall provides sufficient rigidity for a structure; the tie bars and the lead blocks extrude to dissipate part of earthquake energy, and house structures can be normally used; under the action of earthquakes with rare earthquake intensity, the tie bars and the studs are effectively bound with a reinforced concrete wall, the steel plate is prevented from buckling outside a plane, and the structural earthquake resistance is enhanced.

The invention provides a beam-end adjustable combined energy dissipation connection assembly of an assembly type concrete frame. The connection assembly is arranged on the upper side and / or the lower side of the beam end of a beam-column connection of the assembly type concrete frame structure. The connection assembly comprises a column-direction adjustable combined joint (1), a core energy dissipation rod (2), a beam-direction fastening combined cap (3) and a constraint system (4). The adjustable combined energy dissipation connection assembly is made of metal material, and the core energy dissipation rod (2) is arranged in a post-cast tongue-and-groove, and is reliably connected with the tip thread of an in-column anchor bar through the column-direction adjustable combined joint (1). The application of the energy dissipation connection assembly is in accordance with the requirements of the development of building industrialization and has the advantages of simple structure, reliable force transmission and fast installation; by adoption of the energy dissipation connection assembly, the joint ductility is good, the energy dissipation capability is strong, and the assembly can be easily replaced after an earthquake.

The invention relates to a four-steel-tube externally-attached decoration plate type cross-shaped variable-cross-section steel core energy dissipation limiting anti-buckling supporting member, and belongs to the field of anti-buckling energy dissipation limiting supporting members. An outer limiting body is mainly formed by four square light-gauge steel section concrete filled steel tubes forming a shape shaped like a Chinese character 'tian', and the outer sides of the four square light-gauge steel section concrete filled steel tubes are limited by partially welding decoration plates; the welding decoration plates are not arranged on the short edge, corresponding to a cross section largened section b, of the outer limiting body, and the welding decoration plates are welded to the other edges. A steel core is located in a gap of a cross-shaped structure in the middles of the four square light-gauge steel section concrete filled steel tubes, the steel core comprises a buckling working section a, the cross section partial largened section b and a connecting section c, the position, where the decoration plates are not welded to an outer steel tube, of the cross section of the steel core is partially expanded with a 60-degree slope angle, the buckled steel core is in good connection with the outer limiting body, sliding dropping is prevented, and the limiting function is achieved through the axial stiffness of the outer limiting body. After the steel core is buckled, the axial stiffness of the outer limiting body serves as the auxiliary stiffness of a supporting system, and therefore the lateral displacement of the structure is easily limited.

The invention discloses a method for detecting the heating energy efficiency ratio and heating amount of an air conditioner on line. The method for detecting the heating energy efficiency ratio on line comprises the steps that in the air conditioner running process, the real-time press frequency, the real-time indoor temperature, the real-time outdoor temperature, the real-time indoor unit rotating speed and the real-time outdoor unit rotating speed are obtained; the real-time core energy efficiency ratio corresponding to the real-time press frequency and the real-time indoor temperature is determined according to the typical press frequency, the typical indoor temperature, the typical core energy efficiency ratio and typical relationship; the real-time outdoor temperature energy efficiency ratio correction factor is determined according to the real-time outdoor temperature and the rated outdoor temperature, the real-time indoor unit rotating speed energy efficiency ratio correction factor is determined according to the real-time indoor unit rotating speed and the rated indoor unit rotating speed, and the real-time outdoor unit rotating speed energy efficiency ratio correction factor is determined according to the real-time outdoor unit rotating speed and the rated outdoor unit rotating speed; and the real-time heating energy efficiency ratio is determined according to the real-time core energy efficiency ratio and all energy efficiency ratio correction factors. By means of the method, real-time detection of the heating energy efficiency ratio and the heating amount of the air conditioner under different operation conditions can be achieved.

The invention discloses a bidirectional energy dissipating soft steel energy dissipater. The bidirectional energy dissipating soft steel energy dissipater comprises a core energy dissipating component which comprises three rectangular energy dissipating steel plates forming an I-shaped structure, the three rectangular energy dissipating steel plates are respectively a left side rectangular energy dissipating steel plate, a middle rectangular energy dissipating steel plate and a right side rectangular energy dissipating steel plate, and the middle rectangular energy dissipating steel plate is fixed between the left side rectangular energy dissipating steel plate and the right side rectangular energy dissipating steel plate. The dimension parameters of the three rectangular energy dissipating steel plates are specifically defined according to engineering needs and damping requirements. The bidirectional energy dissipating soft steel energy dissipater is combined design of two principles of bend yielding and shear yielding, simultaneously achieves in-plane shear yielding energy dissipating and out-plane bend yielding energy dissipating. A hard core adopts steel with a low yield point, the three rectangular energy dissipating steel plates are reasonably arranged to guarantee the yielding energy dissipating under set inter-story displacement deformation when an earthquake acts, structural damage is avoided, and a protection function is played.

The invention discloses a yield-adjustable X-brace energy dissipation device. Core energy dissipation component sets of the energy dissipation device comprise four energy dissipation steel plate bars and are divided into a first-stage energy dissipation component set and a second-stage energy dissipation component set. The two ends of each energy dissipation steel plate bar are hinged to lug plates fixed to a top plate or bottom plate. In the second-stage energy dissipation component set, the lug plate connected with one end of each energy dissipation steel plate bar is provided with a horizontal strip-shaped groove, and one end of each energy dissipation steel plate bar can slide in the corresponding horizontal strip-shaped groove through a pin. When relative displacement of the upper bottom plate and the lower bottom plate is not large, the first-stage energy dissipation steel plate bars work firstly; when the relative displacement increases and reaches preset target displacement, the pins of the second-stage energy dissipation steel plate bars are in a pressing state, tensile deformation starts to be generated, and energy dissipation is yielded. The displacement in which the second-stage energy dissipation steel plate bars start yield energy dissipation is controlled through control over the lengths of the sliding grooves. The requirements for energy dissipation and shock absorbing of engineering structures in small earthquakes and large earthquakes are met at the same time, and earthquake energy is dissipated in stages.

The invention provides a battery overcharge protection structure and a battery cover. The battery overcharge protection structure is arranged on a cover plate of the battery and is provided with an overturning body capable of overturning on the cover plate; the overturning body is fixedly arranged on the cover plate; at least one bursting groove is formed in the overturning body; the value of thebursting pressure, positioned at the position of the blasting groove, of overturning body is higher than the overturning pressure value of the overturning body; when the internal pressure of the battery reaches the overturning pressure value, the overturning body can overturn to enable the external circuit of the battery to be shortcircuited to release battery core energy, so that the battery stops work; after the internal pressure of the battery is continuously increased and reaches the bursting pressure value, the bursting groove in the overturning body bursts to leak pressure; and by the mode of arranging the bursting groove in the overturning body and on the basis of integrating the overturning function and the bursting function, the size is reduced, the cover plate structure is simplified, the welding process of the explosion-proof sheet is reduced and the cost is reduced.

The invention provides a shearing type staged yield metal damper which solves the technical problems that an existing metal damper can not meet the requirements for wind vibration, small shock and large shock energy consumption at the same time, and is inconvenient to install and maintain. The metal damper structurally comprises two steel flange plates arranged in parallel, a first rectangular energy consumption steel plate and a second rectangular energy consumption steel plate, wherein the first rectangular energy consumption steel plate and the second rectangular energy consumption steel plate are fixedly arranged between the two steel flange plates. The first rectangular energy consumption steel plate and the second rectangular energy consumption steel plate have different kinds of yield strength. Steel side wing plates needed by the first rectangular energy consumption steel plate and the second rectangular energy consumption steel plate are arranged between the two steel flange plates. According to the metal damper, the two rectangular energy consumption steel plates with the different kinds of yield strength are adopted as the core energy consumption parts of the yield metal damper, under the conditions of wind vibration, small shock and the large shock, the corresponding energy consumption requirements can be met, the structure is simple and easy to realize, and the metal damper is more convenient to install compared with the prior art.

The invention belongs to the technical field of civil engineering, building and structural engineering shock absorption, and particularly relates to a design method of a metal damper used in shock absorption and energy dissipation structures such as a shock absorption and isolation device, a support seat and an anti-collision device. The damper consists of a crescent metal plate and connecting lug plates at two ends, and is of an integrally formed structure, wherein the crescent metal plate is a core energy dissipation part of the damper; a center line is an elliptic arc section, and can be of a symmetrical or asymmetrical structure; the cross section adopts the variable width design, and is determined by an equal-rigidity calculation method; the form that the middle is wide and two ends are narrow is used. During the design, firstly, the parameters of the center line of the damper is determined according to the required installing size; secondly, the corresponding relationship of the cross section width and the central angle of the damper is obtained by using a cross section width calculation formula; then, the primary rigidity and the limited elastic deformation are calculated according to the formula; finally, the size of the damper for connecting the lug plates is determined according to the size of required fixing screw bolts or pins. The design method has the advantages that the equal-rigidity design method is used, so that when the damper deforms, all cross sections synchronously enter a plastic stage; great deformation can be realized; meanwhile, the damping ratio can be effectively improved.

The invention relates to a double-web H-shaped steel type buckling restraint brace comprising double-web H-shaped steel and a rectangular sleeve covering outside the double-web H-shaped steel. Grooves are symmetrically formed in the middles of two ends of flanges and two webs of double-web H-shaped steel respectively, and cross reinforced ribs are welded in the grooves. At least two pairs of channel steel are arranged on the inner wall of the sleeve and arranged in a backing manner, and backs of the channel steel are butted against two sides of the flanges of the double-web H-shaped steel. Each of the cross reinforced rib consists of two flat plates with grooves in a perpendicular welding manner. By the double-web H-shaped steel type buckling restraint brace, the buckling length of a core energy consumption unit is reduced, the integral stability thereof is guaranteed, steel usage is reduced to the utmost extent, and the buckling restraint brace has the advantages of flexible design, low manufacturing cost, excellent performance and high adaptability.

The invention discloses an air conditioner heating energy efficiency ratio and heating capacity online detection method. The heating energy efficiency ratio online detection method comprises the steps that in the operation process of an air conditioner, real-time compressor frequency, the real-time indoor temperature, the real-time outdoor temperature, the real-time indoor unit rotation speed and the real-time outdoor unit rotation speed are obtained; real-time energy efficiency ratios corresponding to the real-time compressor frequency and the real-time indoor temperature are determined according to a core energy efficiency ratio benchmark table; a real-time outdoor temperature energy efficiency ratio correction factor is determined according to the real-time outdoor temperature and the rated outdoor temperature, a real-time indoor unit rotation speed energy efficiency ratio correction factor is determined according to the real-time indoor unit rotation speed and the rated indoor unit rotation speed, and a real-time outdoor unit rotation speed energy efficiency ratio correction factor is determined according to the real-time outdoor unit rotation speed and the rated outdoor unit rotation speed; and the real-time heating energy efficiency ratio is determined according to the real-time core energy efficiency ratio and all the energy efficiency ratio correction factors. By the application of the air conditioner heating energy efficiency ratio and heating capacity online detection method, real-time detection of the heating energy efficiency ratio and the heating capacity in different operation conditions of the air conditioner can be achieved.