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31results about How to "Dissipative effective" patented technology
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Acoustic shielding screen for absorbing sound by using coplanar hollow tube
The invention discloses an ultrathin acoustic shielding screen for absorbing sound by using a coplanar hollow tube. The ultrathin acoustic shielding screen is composed of a screen plate, an opening plate with a through hole, and a resonant tube with one open end and one sealed end. The resonant tube is embedded into the screen plate in a coiled manner. The opening end of the resonant tube is in sealed connection with the through hole of the opening plate. The ultrathin acoustic shielding screen differs from a conventional linear hollow tube structure. The central axis of the coplanar hollow tube is in a curved shape and the coplanar hollow tube is embedded in the acoustic shielding screen in a two-dimensional coiled manner. The total thickness of the acoustic shielding screen is far less than the wavelength of an acoustic wave absorbed by the acoustic shielding screen and is just one percent of the wavelength of the absorbed acoustic wave.
Owner:杨军
Bush constraint buckling-preventing support with diamond-shaped energy dissipation unit
ActiveCN105971355AFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceSnubber
The invention discloses a bush constraint buckling-preventing support with a diamond-shaped energy dissipation unit. The bush constraint buckling-preventing support is characterized in that the bush constraint buckling-preventing support comprises an end constraint segment, an energy dissipation segment and a bush; and the two ends are connected with beams or column components or nodes to form a whole through bolts so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit is adopted, and thus under the action of a small earthquake, the bush constraint buckling-preventing support keeps elasticity; and under the action of a medium earthquake or a severe earthquake, the energy dissipation segment enters a yield stage, and the effect of a damper can further be achieved through the good hysteretic energy dissipation performance of the energy dissipation segment. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit 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.
Owner:SOUTHEAST UNIV
Casing pipe constraint buckling prevention support with symmetrical initial defects
ActiveCN105926795AFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceEngineering
The invention discloses a casing pipe constraint buckling prevention support with symmetrical initial defects. The casing pipe constraint buckling prevention support with the symmetrical initial defects is characterized by being composed of end portion constraint sections, buckling sections and a casing pipe; and the two ends are connected with beam and column members or nodes to form a whole through bolts, so that the purpose of increasing the lateral rigidity resistance of the members is achieved. The casing pipe constraint buckling prevention support with the symmetrical initial defects keeps elasticity under the small earthquake effect, the buckling sections enter the buckling stage under the medium earthquake or major earthquake effect, and the good hysteretic dissipative energy can also achieve the effect of a damper. The casing pipe constraint buckling prevention support with the symmetrical initial defects can be prefabricated in a factory, the quality of the members is ensured, the workload of on-site construction work is reduced, and energy conservation and environmental protection are achieved.
Owner:SOUTHEAST UNIV
Sleeve restraint anti-buckling support provided with staggered pyramid-shaped energy dissipation units
ActiveCN106049699AFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceSnubber
The invention discloses a sleeve restraint anti-buckling support provided with staggered pyramid-shaped energy dissipation units. The sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units is characterized in that the sleeve restraint anti-buckling support is composed of end restraint sections, energy dissipation sections and a sleeve, and the two ends are connected with beam or column components or joints in a whole through bolts, so that the purpose of increasing the resistant-lateral rigidity of a component is achieved. By the adoption of the sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units, under the small shock action, the sleeve restraint anti-buckling support can be kept elastic; and under the medium or great shock action, the energy dissipation sections are switched to the buckling stage, and a damper effect can be achieved through the good hysteretic energy dissipation performance of the energy dissipation sections. The sleeve restraint anti-buckling support provided with the staggered pyramid-shaped energy dissipation units can be prefabricated in a factory, the quality of the component is guaranteed, the field construction workload is reduced, energy is saved, and environmental friendliness is achieved.
Owner:SOUTHEAST UNIV
Energy dissipation self-reset anti-seismic retaining block structure for bridge
InactiveCN105951580AGive full play to the bufferGive full play to the role of dissipating seismic energyBridge structural detailsSlope angleBlock structure
The invention discloses an energy dissipation self-reset anti-seismic retaining block structure for a bridge. The structure comprises a cap beam and a beam body, seismic mitigation and absorption supports are arranged on the top surface of the cap beam, the beam body is supported on the seismic mitigation and absorption supports, and retaining blocks are arranged at two ends of the cap beam respectively. A flat end of a concave steel plate with a projection portion having a through hole in the width direction is fixedly embedded into each retaining block, a hinge dowel penetrates holes of each concave steel plate and a corresponding turnover steel plate to connect the two to form a movable hinge, a projection portion of each turnover steel plate is provided with the through hole, and a flat end of each turnover steel plate is provided with a slope. A steel plate with a suspension arm end identical to the corresponding turnover steel plate in slope angle is welded to a beam body embedded part, a plurality of springs are arranged at the end of each turnover steel plate, and each turnover steel plate and the cap beam are connected together through the springs. Under seismic action, seismic energy dissipation and self reset of the beam body can be realized by the movable hinges and the springs, beam falling accidents are reduced, and seismic performance of a bridge structure is improved.
Owner:SOUTHWEST JIAOTONG UNIV
Sleeve buckling induction brace with circular spiral type induction unit
ActiveCN106368487AAvoid overall instabilityStrong energy consumptionProtective buildings/sheltersShock proofingEngineeringHelix
The invention discloses a sleeve buckling induction brace with a circular spiral type induction unit. The brace is composed of an end constraint section, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is composed of at least one circular spiral type induction unit in the axial direction of the brace. The circular spiral type induction unit is a space body formed by sequentially arranging m circular spiral type subunits annularly, and the section of the space body is in a regular m polygon shape. Each circular spiral type subunit is a space body formed by folding two triangular plates collinearly. By the adoption of the sleeve buckling induction brace with the circular spiral type induction unit, the sleeve buckling induction brace keeps elasticity under the action of small seism and enters a yield stage under the action of middle seism or major seism, and the brace can also achieve the effect of a damper due to the good hysteretic energy performance. The sleeve buckling induction brace can be prefabricated in a factory, component quality is guaranteed, workloads of on-site construction are reduced, and energy conservation and environment protection are achieved.
Owner:SOUTHEAST UNIV
Ozone generator
InactiveCN101112972ASmall sizeHigh ozone production rateOzone preparationEngineeringMechanical engineering
The invention relates to an ozonizer which has the advantages of high production efficiency, small size, good heat dissipation and anti-aging capability. The ozonizer includes a cooling plate, a high-voltage plate arranged corresponding to the cooling plate, and a passage structure arranged between the cooling plate and the high-voltage plate. The passage structure includes a first plate which is provided with an internal surface and an external surface attached to the cooling plate, a second plate which is provided with an internal surface corresponding to the internal surface of the first plate and an external surface attached to the high-voltage plate, a plurality of side plates which connect the first plate to the second plate for conveniently defining the space between the first plate and the second plate, a first opening which is formed on the one side of the side plate for introducing the air into the space, and a second opening which is formed on the other side of the side plate for guiding the air out of the space. The structure of the ozonizer can be piled to form a piling module, and further forms an ozonizer piling component. The ozonizer piling component has the advantages of high ozone production speed, high volume flow speed and small dimension.
Owner:刘辉堂
A bushing buckling-inducing brace with hybrid concave-type inducing units
ActiveCN106760837BFlexible layoutDissipative effectiveProtective buildings/sheltersShock proofingEnergy consumptionLarge earthquakes
Owner:SOUTHEAST UNIV
Anti-back-tipping structural piece, anti-back-tipping device and engineering machine
InactiveCN106703002AImprove dissipation efficiencyGood vibration dampingSoil preservationInelastic collisionPropeller
The invention discloses an anti-back-tipping structural piece, an anti-back-tipping device and an engineering machine, and relates to the technical field of engineering machines. The technical problem that in the prior art, the damping effect is poor is solved. The anti-back-tipping structural piece comprises a seat body and damping particles, wherein the seat body is provided with a movable cavity and an embedding opening communicated with the movable cavity; the damping particles are arranged in the movable cavity in a filling manner and occupy partial space of the movable cavity, and the damping particles can dissipate vibration energy on a stretchable movement piece at least through the manners of friction of the stretchable movement piece embedded in from the embedding opening or non-elastic collision between the damping particles. The anti-back-tipping device comprises the stretchable movement piece and the anti-back-tipping structural piece provided in the invention. The engineering machine comprises an arm support, a rotary table, a propeller strut and the anti-back-tipping device provided in the invention. By means of the anti-back-tipping structural piece, the anti-back-tipping device and the engineering machine, the damping effect of the anti-back-tipping structural piece is improved.
Owner:XCMG CONSTR MACHINERY
Sleeve buckling induction support with oblique spiral induction units
ActiveCN106639463AFlexible layoutQuality assuranceProtective buildings/sheltersShock proofingEngineeringEnergy consumption
The invention discloses a sleeve buckling induction support with oblique spiral induction units. The sleeve buckling induction support is composed of end restraining sections, a buckling induction section, an inner sleeve and an outer sleeve, wherein the buckling induction section is clamped between the inner sleeve and the outer sleeve; the inner sleeve and the outer sleeve are each connected with one end restraining section; the buckling induction section is formed by the at least one oblique spiral induction units in the axis direction of the support; each oblique spiral induction unit is a space body formed by oblique and sequential arrangement of m oblique spiral subunits, and the section of the space body is in a spiral line shape; and each oblique spiral subunit is a space body formed by collinear folding of two triangular plates located in the same plane. The sleeve buckling induction support maintains elasticity under small earthquakes, and under intermediate or large earthquakes, the buckling induction section enters the buckling stage and can achieve the effect as a damper due to the excellent retard energy consumption performance.
Owner:SOUTHEAST UNIV
Fuel filter
ActiveCN105822472AIncrease ESD characteristicsDissipative effectiveMachines/enginesMembrane filtersEngineeringFuel filter
Embodiments for a fuel filter are provided. In one example, a diesel fuel filter comprises a header having an inlet port, an outlet port, a recirculation inlet port, and a recirculation outlet port; and a filter body made having different material than the header, the filter body coupled with the header and housing a filter membrane. In this way, electrostatic discharge may be reduced.
Owner:FORD GLOBAL TECH LLC
A kind of phase change particle modified polyamide wear-resistant material and its preparation method
The invention discloses a phase-change-particle modified polyamide wear-resistant material and a preparing method thereof. The phase-change-particle modified polyamide wear-resistant material is formed in the mode that reaction materials, a catalyst and an assist catalyst are catalyzed and polymerized, wherein the adding proportion of the reaction materials to the catalyst to the assist catalyst is 100 g:(0.2-0.35) g:(1.5-3.5) ml, the reaction materials comprise, by mass, 5%-10% of phase-change particle materials and 90%-95% of caprolactam, and phase-change-particle materials are porous graphene / hard paraffin phase-change materials. According to the phase-change-particle modified polyamide wear-resistant material and the preparing method thereof, the high-thermal conductivity and the high heat enthalpy of phase-change particles are used for dissipating friction heat, the tribology performance of the polyamide material is improved accordingly, particularly, the anti-wear performance of the polyamide material is greatly improved, the abrasion resistance under the low-speed and heavy-load condition is 1.3-2.7 times that of the prior art, and the abrasion resistance under the high-speed and light-load condition is 2.6-5.8 times that of the prior art; therefore prepared pieces with the wider application range are prepared with the polyamide composite material.
Owner:HENAN UNIV OF SCI & TECH
Sleeve buckling inducing support with variable-angle four-crease-type inducing units
ActiveCN106760835AFlexible layoutFully developed plasticityProtective buildings/sheltersShock proofingEngineeringEnergy conservation
The invention discloses a sleeve buckling inducing support with variable-angle four-crease-type inducing units. The support comprises end constraint segments, a buckling inducing segment, an inner sleeve and an outer sleeve. The end constraint segments are located at the two ends of the buckling inducing segment, the buckling inducing segment is sandwiched between inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are connected with the end constraint segments respectively. The buckling inducing segment is formed by at least one variable-angle four-crease-type inducing units in the axial direction of the support, and each variable-angle four-crease-type inducing unit is a space body formed by sequentially arranging m identical variable-angle four-crease-type subunits in the circumferential direction, wherein the section of the space body is a regular polygon. Each variable-angle four-crease-type subunit is a space body formed by folding four trapezoidal plates in the same plane. The buckling inducing support has good hysteretic energy dissipation performance and can achieve the effect of a damper; the support can be prefabricated in a factory, the component quality is guaranteed, the workload of on-site construction is reduced, and energy conservation and environment protection are achieved.
Owner:SOUTHEAST UNIV
A Casing Buckling-Inducing Brace with Oblique Helical Inducing Units
ActiveCN106639463BFlexible layoutQuality assuranceProtective buildings/sheltersShock proofingClassical mechanicsBiology
The invention discloses a casing buckling induction support with an oblique spiral type induction unit. The buckling induction section is composed of an end restraint section, a buckling induction section, an inner casing and an outer casing, and is sandwiched between the inner casing and the outer casing. , the inner casing and the outer casing are respectively connected with an end restraint section, the buckling induction section is composed of at least one oblique helical induction unit along the axis of the support, and the oblique helical induction unit is composed of m oblique helical induction units The subunits are arranged in sequence along the oblique direction to form a space body with a helical section; the oblique spiral subunit is a space body formed by collinear folding of two triangular plates located in the same plane. The bushing buckling induction support of the present invention maintains elasticity under the action of a small earthquake, and the buckling induction section enters the yielding stage under the action of a moderate earthquake or a large earthquake, and its good hysteretic energy dissipation performance can also play a role in damping device effect.
Owner:SOUTHEAST UNIV
A casing-constrained anti-buckling brace with diamond-shaped energy dissipation elements
ActiveCN105971355BFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceSnubber
The invention discloses a bush constraint buckling-preventing support with a diamond-shaped energy dissipation unit. The bush constraint buckling-preventing support is characterized in that the bush constraint buckling-preventing support comprises an end constraint segment, an energy dissipation segment and a bush; and the two ends are connected with beams or column components or nodes to form a whole through bolts so as to achieve the purpose of improving of the resistant-lateral rigidity of components. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit is adopted, and thus under the action of a small earthquake, the bush constraint buckling-preventing support keeps elasticity; and under the action of a medium earthquake or a severe earthquake, the energy dissipation segment enters a yield stage, and the effect of a damper can further be achieved through the good hysteretic energy dissipation performance of the energy dissipation segment. The bush constraint buckling-preventing support with the diamond-shaped energy dissipation unit 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.
Owner:SOUTHEAST UNIV
Sleeve buckling induction support with lengthened-pineapple-shaped induction units
ActiveCN106760832AFlexible layoutDissipative effectiveProtective buildings/sheltersShock proofingEngineeringEnergy consumption
The invention discloses a sleeve buckling induction support with lengthened-pineapple-shaped induction units. The sleeve buckling induction support is composed of end constraint sections, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is clamped between the inner sleeve and the outer sleeve which are each connected with one end constraint section. The buckling induction section is composed of at least one lengthened-pineapple-shaped induction unit in the axial direction of the support. Each lengthened-pineapple-shaped induction unit is a space body formed by sequentially arranging m identical lengthened-pineapple-shaped sub units in the circumferential direction, and the section of the space body is a 2m-polygon. Each lengthened-pineapple-shaped sub unit is a space body formed by folding four triangular plates and two trapezoidal plates located in the same plane. The sleeve buckling induction support keeps elasticity under the effect of a small earthquake, the buckling induction section enters a yielding stage under the effect of a medium earthquake or a large earthquake, and the effect of a damper can be achieved by means of the good hysteretic energy consumption performance of the support.
Owner:SOUTHEAST UNIV
A kind of silent anti-vibration composite floor and its preparation method
InactiveCN106751479BIncrease elasticityEasy to produce resonance effectCovering/liningsWood working apparatusCyclohexanoneEpoxy
The invention discloses a muting and shockproof composite floor. The muting and shockproof composite floor comprises: a composite material, wherein the composite material is prepared from, by weight, 40-65 parts of epoxy resin, 10-20 parts of aerosol, 30-60 parts of wood shavings, 20-60 parts of rubber particles, 10-20 parts of hydroxypropyl methyl cellulose, 3-10 parts of aliphatic glycidol ether, 0.2-1 part of fatty acid amide, 0.2-1 part of acrylate, 0.2-1 part of hydrogenated ester castor oil, 0.2-1 part of polyamide and 20-40 parts of cyclohexanone; and an outer frame (1) made of solid strips, wherein the composite material is wrapped in the outer frame (1). The composite floor produced from woodwork processing residues and waste tire pellets has good waterproofing, anti-moth, anti-static electricity, sound insulation, damping and heat insulation functions, and comprehensively has the high-efficiency utilization values of wood and the no-pollution recycling values of waste tires.
Owner:CHONGQING ACADEMY OF SCI & TECH
A Casing Buckling-Inducing Brace with Circumferential Helical Inducing Units
ActiveCN106368487BFlexible layoutQuality assuranceProtective buildings/sheltersShock proofingEngineeringEnergy conservation
Owner:SOUTHEAST UNIV
Design method and device for vibration reduction of display board type hydraulic oil cylinder
ActiveCN119288941Areduce vibrational energyreduce shockSustainable transportationNon-rotating vibration suppressionHydraulic cylinderHydraulic ram
The invention discloses a design method and device for vibration reduction of a display board type hydraulic oil cylinder, and the vibration reduction design strategy can realize effective attenuation of low-medium-high full-band vibration energy and impact vibration energy of the oil cylinder device through the synergistic combination effect of a plurality of vibration reduction technologies on the basis of not disassembling and modifying the original oil cylinder device. The multi-vibration reduction technology comprises a vibration absorption technology, a vibration resistance technology and a vibration isolation technology. In addition, vibration reduction devices related to the three vibration reduction technologies are all made of pure metal materials, and the good environment adaptability is achieved. In conclusion, compared with an existing single damping material vibration reduction scheme, the vibration energy attenuation capacity is obviously improved, the vibration reduction effect frequency band range is also greatly widened, meanwhile, the pure metal design enables the vibration reduction device to have the good environmental adaptability, and the vibration reduction device has the good application prospect. And the comprehensive application requirements of actual engineering on the vibration reduction effect and the reliable adaptive capacity can be well met.
Owner:XI AN JIAOTONG UNIV
A bushing buckling-inducing brace with extended pineapple-shaped inducing units
ActiveCN106760832BFlexible layoutDissipative effectiveProtective buildings/sheltersShock proofingEnergy consumptionLarge earthquakes
The invention discloses a sleeve buckling induction support with lengthened-pineapple-shaped induction units. The sleeve buckling induction support is composed of end constraint sections, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is clamped between the inner sleeve and the outer sleeve which are each connected with one end constraint section. The buckling induction section is composed of at least one lengthened-pineapple-shaped induction unit in the axial direction of the support. Each lengthened-pineapple-shaped induction unit is a space body formed by sequentially arranging m identical lengthened-pineapple-shaped sub units in the circumferential direction, and the section of the space body is a 2m-polygon. Each lengthened-pineapple-shaped sub unit is a space body formed by folding four triangular plates and two trapezoidal plates located in the same plane. The sleeve buckling induction support keeps elasticity under the effect of a small earthquake, the buckling induction section enters a yielding stage under the effect of a medium earthquake or a large earthquake, and the effect of a damper can be achieved by means of the good hysteretic energy consumption performance of the support.
Owner:SOUTHEAST UNIV
Driver integrated bldc fuel pump module
ActiveCN102639858BAddress space constraintsSolve the problem of degraded running performancePump componentsCircumferential flow pumpsMobile vehicleElectricity
The present invention relates to a driver-integrated BLDC fuel pump module used in a motor vehicle, and more particularly to a driver-integrated BLDC fuel pump module, wherein a driver for controlling the BLDC fuel pump is mounted on the BLDC fuel pump module on the flange of the driver, thereby avoiding the space limitation of installing the driver, and reducing the length of the wires used for the electrical connection between the driver and the BLDC fuel pump, thus greatly reducing the voltage drop and operating efficiency reduction caused by the wires The resulting BLDC fuel pump performance degradation.
Owner:COAVIS
Energy-dissipating Self-resetting Bridge Seismic Block Structure
The invention discloses an energy-dissipating and self-resetting bridge anti-seismic block structure, which comprises a cover beam and a beam body. A shock-absorbing and isolating support is arranged on the top surface of the cover beam. On the support, stoppers are respectively provided at both ends of the cover beam, and the flat end of a concave steel plate with a through hole in the width direction of the protruding part is embedded in the stopper, and the concave steel plate Hinge shaft pins are put through the hole of a flipped steel plate with a through hole in the width direction of the protruding part and a slope surface at the flat end, and the two are connected together to form a living hinge, and a piece is welded on the embedded part of the beam body The end of the cantilever is a steel plate with the same slope angle as the turning steel plate, and several springs are arranged at the end of the turning steel plate, and the springs connect the turning steel plate and the cover beam together. Under the action of an earthquake, the invention can dissipate the seismic energy and realize the self-resetting of the beam body through the movable hinge and several springs, reduce the occurrence of beam falling accidents, and improve the seismic performance of the bridge structure.
Owner:SOUTHWEST JIAOTONG UNIV
A Casing-Restrained Buckling-Resistant Brace with Symmetrical Initial Defects
ActiveCN105926795BFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceEngineering
Owner:SOUTHEAST UNIV
Buckling induction support of casing with inducing unit of groove type
ActiveCN106703492AFlexible layoutQuality assuranceProtective buildings/sheltersShock proofingEngineeringShock absorber
The invention discloses a buckling induction support of casing with inducing units of a groove type, comprising end constraint sections, a buckling induction section, an inner sleeve and an outer sleeve. The buckling induction section is clamped between the inner sleeve and the outer sleeve. The end constraint sections are respectively connected with the inner sleeve and the outer sleeve. The buckling induction section comprises at least one inducing unit of groove type along the axis direction of the support. The inducing unit of the groove type forms a spatial entity by m same inducing sub units of the groove type arranged along the circumferential direction. The inducing sub units of the groove type are spatial entities folded by four triangular plates arranged in a same plane. The buckling induction support has the advantages of keeping elasticity under an action of small shock, having good hysteretic energy dissipation performance when entering a yielding stage under the action of moderate and strong shock and playing the effect of a damper.
Owner:SOUTHEAST UNIV
A casing-constrained buckling-resistant brace with staggered pyramidal energy-dissipating elements
ActiveCN106049699BFlexible layoutImprove protectionProtective buildings/sheltersShock proofingBuckling-restrained braceEngineering
Owner:SOUTHEAST UNIV
A dynamic polymer elastomer with hybrid cross-linked network and its application
ActiveCN107556433BGood energy dissipationExcellent self-healing performanceCoatingsAdhesivesElastomerPolymer science
The invention discloses a dynamic polymer elastomer with a hybrid cross-linked network. The elastomer comprises the hybrid crosslinked network, and the hybrid crosslinked network contains covalent crosslinking and supermolecular hydrogen bond crosslinking, wherein the covalent crosslinking achieves a percolation threshold or more of a covalent cross-linked gel, and the hydrogen bond crosslinking is realized through hydrogen bond groups brought by polymer chain side groups and / or side chains. According to the invention, hydrogen bonds are dynamically reversible, thus the dynamic polymer elastomer has good performance such as toughness, energy dissipation performance, and self repairability. The dynamic polymer elastomer with the hybrid cross-linked network is widely applied to aspects suchas body protection in sports and daily life and work, military police body protection, explosion protection, airborne and air-drop protection, automotive collision avoidance, and electronic material impact resistant protection.
Owner:厦门逍扬运动科技有限公司
A bushing buckling-inducing brace with circumferential Y-shaped inducing units
ActiveCN106499082BFlexible layoutQuality improvementProtective buildings/sheltersShock proofingHysteresisEngineering
The invention discloses a sleeve buckling inducing support with circular Y-type induction units. The sleeve buckling inducing support is composed of an end restraint section, a buckling inducing section, an inner sleeve and an outer sleeve. The buckling inducing section is composed of at least one circular Y-type inducing unit in the axial direction of the support. The single circular Y-type inducing unit circularly sequentially forms a space body with a section being an m-edge polygon by m identical circular Y-type subunits, and the circular Y-type subunits each are a space body formed by folding two triangular plates and two trapezoidal plates which are located on the same plane. The sleeve buckling inducing support retains elasticity under a small vibration effect; when a medium vibration or large vibration effect occurs, the buckling inducing section enters a yielding stage, and a good hysteresis energy dissipation performance can achieve an effect of a damper. The sleeve buckling inducing support with the circular Y-type induction units can be prefabricated in a factory, component quality is ensured, a site operation workload is reduced, and the sleeve buckling inducing support saves energy and is environmentally friendly.
Owner:SOUTHEAST UNIV
A Casing-Constrained Buckling-Resistant Brace with Bidirectional Pyramid Energy Dissipating Elements
ActiveCN106049954BFlexible layoutQuality assuranceProtective buildings/sheltersShock proofingBuckling-restrained braceEngineering
Owner:SOUTHEAST UNIV
A sound-absorbing screen using coplanar hollow tubes to absorb sound
ActiveCN104732967BImprove concentrationAccelerated dissipationSound producing devicesEngineeringAcoustic wave
The invention discloses an ultrathin acoustic shielding screen for absorbing sound by using a coplanar hollow tube. The ultrathin acoustic shielding screen is composed of a screen plate, an opening plate with a through hole, and a resonant tube with one open end and one sealed end. The resonant tube is embedded into the screen plate in a coiled manner. The opening end of the resonant tube is in sealed connection with the through hole of the opening plate. The ultrathin acoustic shielding screen differs from a conventional linear hollow tube structure. The central axis of the coplanar hollow tube is in a curved shape and the coplanar hollow tube is embedded in the acoustic shielding screen in a two-dimensional coiled manner. The total thickness of the acoustic shielding screen is far less than the wavelength of an acoustic wave absorbed by the acoustic shielding screen and is just one percent of the wavelength of the absorbed acoustic wave.
Owner:杨军
A bushing buckling-inducing brace with variable-angle four-fold-type inducing units
ActiveCN106760835BFlexible layoutFully developed plasticityProtective buildings/sheltersShock proofingEngineeringEnergy conservation
The invention discloses a sleeve buckling inducing support with variable-angle four-crease-type inducing units. The support comprises end constraint segments, a buckling inducing segment, an inner sleeve and an outer sleeve. The end constraint segments are located at the two ends of the buckling inducing segment, the buckling inducing segment is sandwiched between inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are connected with the end constraint segments respectively. The buckling inducing segment is formed by at least one variable-angle four-crease-type inducing units in the axial direction of the support, and each variable-angle four-crease-type inducing unit is a space body formed by sequentially arranging m identical variable-angle four-crease-type subunits in the circumferential direction, wherein the section of the space body is a regular polygon. Each variable-angle four-crease-type subunit is a space body formed by folding four trapezoidal plates in the same plane. The buckling inducing support has good hysteretic energy dissipation performance and can achieve the effect of a damper; the support can be prefabricated in a factory, the component quality is guaranteed, the workload of on-site construction is reduced, and energy conservation and environment protection are achieved.
Owner:SOUTHEAST UNIV