133 results about "Viscoelastic damping" patented technology

The invention provides a robust optimization method and device for a low-frequency sound absorption metamaterial, and relates to the technical field of punching, and the method comprises the steps: obtaining a response function of a target metamaterial through employing a linear one-dimensional rheological model; determining a target coupling region by using an imaginary part of a transfer function zero point corresponding to the response function or a size relationship between inherent loss and radiation loss as a coupling criterion, and determining a closed coupling region where a preset parameter point is located as an initial robust region; the target coupling region comprises a closed coupling region; the preset parameter point meets the one-dimensional frequency domain response of the target metamaterial; and determining the size of the initial robust region by using the Lexberg measure of the Euclidean space, and optimizing the robust region by maximizing the Lexberg measure of the initial robust region in the Euclidean space to obtain a target robust region. According to the method, the maximum robust region in the parameter space is found through maximum measurement, so that the response characteristics of the viscoelastic damping material under the actual working condition can be accurately described.

The utility model belongs to the technical field of damping vibration attenuation, and particularly relates to a viscous damper structure which comprises a damping cylinder body, a viscoelastic damping body is arranged at the top of the damping cylinder body in a sealing mode, a viscous damping body is filled in the damping cylinder body, and a movable shaft body penetrates through the middle of the viscoelastic damping body. One end of the movable shaft body extends into the viscous damping body and is provided with a movable terminal; the movable shaft body is of a hollow structure and is internally provided with an adjusting shaft, one end of the adjusting shaft is provided with an adjusting disc abutting against the movable terminal, and the movable terminal and the adjusting disc are provided with damping adjusting holes which are aligned in a one-to-one mode. The viscoelastic damping body is made of a pouring type high-damping material, has excellent vibration reduction characteristic, waterproof performance and sealing characteristic and basically has no additional rigidity, and the viscous damping body is made of a liquid type high-damping material, and is excellent in damping function and simple in structure; and meanwhile, the size of the damping adjusting hole in the movable terminal can be adjusted by rotating the adjusting disc, so that the purpose of adjusting the damping is achieved.

The invention provides an anti-seismic design analysis method for a transformer substation lightning rod viscoelastic damper damping structure, and relates to the technical field of mechanical parameter design. A connecting sleeve shell with a supporting cavity is arranged at the connecting point of a viscoelastic damper and a lightning rod, and a self-healing material, a heating piece and a light curing lamp are combined for use; the crack can be effectively repaired, the service life can be prolonged, and according to the specific crack self-healing time and the preset expected value of the strength recovery rate, quantitative selection standards are adopted, so that evaluation and selection of the self-healing material are more scientific and systematized; the design is divided into three stages, and different types of self-healing materials are adopted for each stage of design, so that the structure is ensured to have excellent self-healing performance under different working conditions.

The utility model provides a testing device for a train brake pad friction block texture structure, belongs to the technical field of brake pad friction blocks, and aims to solve the stick-slip vibration phenomenon occurring when a high-speed train is braked. In the prior art, a large number of tests and debugging are needed and wide popularization is difficult to realize when the stick-slip vibration is inhibited by integrally changing the property of a friction block or installing a viscoelastic damper and the like. In the utility model, different textures are designed on the surface of the brake pad friction block; the surface texture design based on the friction blocks is adopted to restrain the stick-slip vibration phenomenon of the train braking system, the method is a method for actively restraining the stick-slip vibration from the source, the structure of the braking system does not need to be modified or increased or decreased, and therefore the operation and maintenance cost of a train is not increased, and popularization is easier to achieve.

The utility model belongs to the technical field of wall structures, and particularly relates to an anti-explosion vibration-reduction energy-absorption wall structure which comprises a base layer wall board body, and a reinforcing assembly is arranged on the surface of the base layer wall board body. During use, the prefabricated concrete layers are poured between the two base layer wallboard bodies, the elastic steel plate is arranged between the prefabricated concrete layers, the energy absorption effect of the wall is improved, the multiple protruding blocks are installed on the surface of the elastic steel plate, gaps are reserved between the poured prefabricated concrete layers, and therefore the elastic steel plate can be used for reinforcing the prefabricated concrete layers. A viscoelastic damping material is poured between the two pouring prefabricated concrete layers, the anti-seismic and vibration-reducing performance of the wall is improved, a concrete prefabricated block is installed in an installation frame in cooperation with an installation assembly, a clamping block is installed on the surface of the installation frame, and a clamping groove is formed in the other side of the installation frame; the clamping blocks on one mounting frame are clamped into the clamping grooves formed in the surface of the other mounting frame, the two mounting frames are fixed through the fixing bolts b, wall splicing is facilitated, and mounting is convenient.

The invention belongs to the technical field of structural engineering, and relates to a self-resetting lateral force resisting module suitable for a beam through type frame. According to the technical scheme, a rotating support is an obtuse-angle triangular frame composed of an inclined support and a horizontal beam, the obtuse-angle top of the obtuse-angle triangular frame is hinged to the bottom of an upper-layer main beam of a beam-through type frame, and the center of the horizontal beam of the obtuse-angle triangular frame is connected with a thorn ring-disc spring reset system; the acute angle of the obtuse triangle frame is connected with an inner wedge-shaped plate-disc spring reset system and an outer wedge-shaped plate-disc spring reset system; the viscoelastic damping groove is connected to the lower portion of the horizontal beam and located between the thorn ring-disc spring reset system and the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system. The bottoms of the thorn ring-disc spring reset system, the viscoelastic damping groove, the inner wedge-shaped plate-disc spring reset system and the outer wedge-shaped plate-disc spring reset system are fixedly connected with the upper portion of a lower layer main beam of the beam through type frame. The characteristics of a beam through type steel frame are fully matched, and the weak layer effect of the beam through type steel frame in the application of a high-rise building structure in the background technology is solved.

The utility model provides a combined type double-layer corrugated steel plate viscoelastic damping wall. The combined type double-layer corrugated steel plate viscoelastic damping wall comprises a single-section corrugated steel plate, a double-layer corrugated steel plate wall body, a lower fixing support, an upper fixing support, steel stand columns at the two ends, triangular angle steel fixing connecting pieces, viscoelastic material filling bodies and high-strength bolts. The double-layer corrugated steel plate wall body is formed by splicing single-layer corrugated steel plates formed by splicing single-section corrugated steel plates end to end along the flanges, and the corrugated steel plates on the front side and the rear side are connected at the lap joint position through high-strength bolts. The upper fixing support and the lower fixing support are tightly attached to the wall body and symmetrically arranged along the center line of the damping wall, the stand columns at the two ends are formed by oppositely splicing angle steel flanges, and the three-corner angle steel fixing connecting pieces are arranged at the four corners of the front side and the rear side of the damping wall and connected with the wall body in a penetrating mode through high-strength bolts. Viscoelastic damping materials are filled in a cavity of the double-layer corrugated steel plate, and holes are formed in the wall body to meet different building function requirements. The energy-dissipation and shock-absorption steel structure has better ductility and energy-dissipation and shock-absorption capacity, and the ultimate bearing capacity and the lateral displacement resistance of a building structure are improved.

The invention discloses a multi-stage assembly type viscoelasticity-metal toughness damper and a vibration reduction method, and belongs to the technical field of engineering structure vibration reduction. The damper comprises a viscoelastic damper unit, a metal damper unit and an SMA self-resetting unit. The viscoelastic damper unit is composed of a constraint steel plate and a viscoelastic material layer which are laminated, and the two ends of the viscoelastic damper unit are connected with the first connecting plate and the second connecting plate correspondingly. The metal damper unit comprises outer restraining plates arranged on the two sides of the viscoelastic unit and metal energy dissipation webs connected between the outer restraining plates and the connecting plates. The SMA self-resetting unit comprises a force transmission steel plate, a stress steel plate and an SMA component. According to the damper, the viscous-elastic material is used for shearing and dissipating energy under small shock or wind vibration, the SMA component provides reset force, and the metal web keeps elasticity; the metal webs conduct buckling energy dissipation under medium earthquakes or large earthquakes and work in cooperation with the viscoelastic units and the SMA units, the energy dissipation capacity is remarkably improved, and residual deformation is controlled. The device has the advantages of multi-stage collaborative energy consumption, good self-resetting performance, assembling capability and easiness in maintenance.

The invention relates to the technical field of cables, provides an environment-friendly marine cable, and aims to solve the technical problem that an existing marine cable is insufficient in comprehensive protection capability. The cable sequentially comprises a cable core conductor, an insulating layer, an inner protective layer, a viscoelastic damping and stress decoupling layer, a dual-function sacrificial hydrogel layer and a high-durability environment-friendly outer sheath from inside to outside. By the adoption of the technical scheme, integrated cooperative protection of the structure and materials can be achieved, dual active protection on moisture and salt mist is provided, the cable is endowed with excellent mechanical stress tolerance, and high environmental protection performance and long-period durability of the cable are guaranteed.

The invention relates to the technical field of structural engineering, in particular to a stable friction damper with segmented positive and negative stiffness characteristics and a modeling method of the friction damper. The friction damper comprises supports, and a pre-compression spring assembly, a lever assembly, a viscoelastic damper assembly and a rotating friction assembly which are arranged between the supports; the pre-compression spring assembly is used for achieving the negative stiffness effect, the lever assembly plays a role in increasing the force and the negative stiffness effect, and the pre-compression spring assembly and the lever assembly form a stable triangular deformation structure. The rotating friction assembly is used for providing friction damping force and guaranteeing the stability of the structure when the pre-compression spring assembly and the lever assembly rotate relatively. The viscoelastic damper assembly is used for applying vibration reduction control force to the structure when small-amplitude vibration of the structure is not enough to drive the friction surface to slide. The invention further provides a corresponding modeling analysis method, and the dynamic behaviors of the device in different working stages are accurately described.

The invention belongs to the technical field of rubber composite materials, and provides a low-noise rubber track composite material and application thereof. A double-filler synergistic damping design of montmorillonite / silicon carbide composite filler and carbon black grafted with a damping functional polymer is adopted, montmorillonite is loaded on the surface of silicon carbide in an intercalation-stripping composite structure, the stripping degree is 60-90%, the polymer is grafted on the surface of carbon black through a silane coupling agent, the grafting density is 0.3-0.8 chains / nm < 2 >, the mass ratio of the two fillers is 1.5: 1-3: 1, and the damping functional polymer is grafted on the surface of carbon black through a silane coupling agent. And a dual noise reduction mechanism in which rigidity enhancement and viscoelastic damping are cooperated is formed. The loss factor tan delta is larger than or equal to 0.15 in the frequency range of 20-1000 Hz, and compared with a conventional material, the noise is reduced by 10-30 dB. The invention solves the technical problems of poor damping effect and weak noise control capability of the traditional rubber track material, and has wide application value in the fields of engineering machinery tracks, automobile tires, shock absorption and noise reduction materials and the like.

The utility model discloses a double-sided plane grinding and polishing machine, which relates to the technical field of grinding and polishing equipment, aims to solve the technical problem that ultrathin or fragile products are easily damaged by the current double-sided lapping machine, and comprises a double-sided lapping machine, an outer matching ring, a lower grinding disc, a butt joint seat and a wandering star wheel. The wandering star wheel is composed of the hollowed-out ring and the butt joint gear ring, the reinforcing frame is arranged in the hollowed-out ring, on the premise that the strength of the wandering star wheel is guaranteed, unnecessary materials are removed, the mass of the wandering star wheel is reduced, and therefore inertia is reduced, meanwhile, a composite buffering structure is arranged in the wandering star wheel, and the service life of the wandering star wheel is prolonged. The first buffer layer of the composite buffer structure is made of elastic rubber and can absorb most impact force generated by inertia of the wandering star wheel, the damping layer is made of viscoelastic damping materials and can effectively restrain transmission of vibration, and the second buffer layer is made of silica gel and further buffers and disperses acting force on a product. And the phenomenon that ultrathin or fragile products are damaged in the machining process can be effectively avoided.

The utility model discloses an outer wall anti-crack and anti-seepage structure which comprises a first wall body and a second wall body, an anti-crack structure is arranged between the first wall body and the second wall body, and the anti-crack structure comprises a plurality of damping rods penetrating through the first wall body and the second wall body at the same time. The damping rods are arranged between the first wall body and the second wall body, the damping rods are matched with the viscoelastic damping waterproof assemblies, the anti-seismic performance and the waterproof effect of the wall body are effectively improved, meanwhile, through reinforcement of the fixing plates and the reinforcing steel bars, the wall body is not prone to falling off, and the wall body is not prone to falling off due to the fact that the damping rods are arranged between the first wall body and the second wall body. The stability and durability of the structure are enhanced; in addition, due to the design of the receding grooves, the space is reasonably utilized, the construction process is simplified, and construction simplicity and structural attractiveness are guaranteed.

The invention belongs to the technical field of shock absorbers, and discloses a viscoelastic-superelastic shape memory alloy composite shock absorber and a working method.The viscoelastic-superelastic shape memory alloy composite shock absorber comprises a viscoelastic damping energy dissipation unit, and a limiting unit is installed in the viscoelastic damping energy dissipation unit; superelastic energy dissipation units are mounted on the two sides of the viscoelastic damping energy dissipation unit; by combining the advantages of a traditional viscoelastic damper and a hyperelastic shape memory alloy damper, the dynamic response of a building structure under different vibration frequencies in a wide deformation domain can be effectively controlled; and meanwhile, the contribution of the shock absorber to the damping force and the self-recovery force of the structure can be optimized by adjusting the viscoelastic damping energy dissipation unit and the hyperelastic energy dissipation unit, so that the failure damage probability of the structure is reduced, and the shock absorber can provide stable shock absorption capacity in a wide temperature range, a wide frequency range and a wide strain range.

The utility model discloses a magnetorheological sound insulation cotton damping with anti -interference structure relates to sound insulation material technical field, including sound insulation cotton layer and anti -interference structure layer. The composite electromagnetic shielding layer of the magnetorheological sound insulation cotton damping with anti -interference structure outermost layer is alternately woven composite by nanometer copper net and graphene film, can be all -round shielding to electromagnetic interference, creates stable electromagnetic environment for the inside magnetorheological liquid filling cavity, effectively avoids the outside electromagnetic signal interference magnetorheological liquid response to the magnetic field, guarantees its rheological characteristic stable play, the three -dimensional shock attenuation layer of inner layer adopts the even arrangement of hexagonal honeycomb -like elastic rubber film and viscoelastic damping block, and is matched with interval distribution's shock attenuation spring and shock attenuation rubber block, can form multistage shock attenuation system, effectively absorbs and buffers mechanical vibration, greatly reduced the influence of outside vibration to sound insulation cotton layer and magnetorheological liquid filling cavity, has improved the reliability of product under complex vibration environment significantly.

The invention discloses a self-repairing road concrete pipe with an anti-seismic structure, and relates to the technical field of civil engineering materials and structural seismic resistance. The structure comprises a concrete pipe joint, a repairing liquid main pipe network, an asphalt damping bonding layer and a high-density polyethylene exoskeleton which are sequentially and coaxially arranged from inside to outside, and the repairing liquid main pipe network is attached to the outer wall of the concrete pipe joint and filled with repairing liquid; the asphalt damping bonding layer coats the asphalt damping layer and the asphalt damping layer and provides viscoelastic damping; the high-density polyethylene exoskeleton is arranged outside in a sleeving mode, a mechanical weak line is arranged on the pipe wall of the high-density polyethylene exoskeleton, and seismic resistance and self-repairing are achieved through a three-stage mechanism: in the first stage, the exoskeleton dissipates main energy through plastic deformation of the weak line; in the second stage, the asphalt layer absorbs residual energy through viscous deformation; and in the third stage, when the concrete pipe cracks, the asphalt layer transmits deformation to the repairing liquid pipe network and enables the repairing liquid pipe network to be broken, and precise self-repairing is achieved. The structure integrates efficient energy consumption and repairing functions, and the anti-seismic toughness and durability of the underground pipeline are improved.

To efficiently increase damping capacity for vertical vibration between a floor member and a floor structure.SOLUTION: A vibration control structure disposed between a floor member and a floor structure comprises: a first member having one end pin-connected to the floor structure and rotatable around a first rotation axis via the pin connection; a second member having one end pin-connected to the floor member and rotatable around a second rotation axis via the pin connection, in which the second rotation axis is parallel to the first rotation axis; and a viscoelastic damper connecting the other ends of the first and second members.SELECTED DRAWING: Figure 2

The present invention provides a damping rubber composition that can form a damping member with excellent damping properties in low-strain areas such as wind sway, while suppressing adhesion to rolls and having good processability. [Solution] The damping rubber composition contains (a) a base rubber, (b) a tackifier, (c) carbon black, (d) an inorganic filler with a particle size of 3 μm or more as measured by the air permeability method, and (e) a fatty acid derivative as a lubricant, wherein the (a) base rubber contains at least one selected from the group consisting of polyisoprene rubber and polybutadiene rubber, and the amount of (b) tackifier is 70 to 110 parts by mass, the amount of (c) carbon black is 100 to 160 parts by mass, the amount of (d) inorganic filler is 5 to 100 parts by mass, and the amount of (e) lubricant is 0.5 to 10 parts by mass per 100 parts by mass of the (a) base rubber.

The invention discloses a hybrid self-resetting support provided with a rate-dependent viscoelastic damper, which belongs to the technical field of seismic resistance of structural engineering, and comprises an outer pipe, an inner plate, a viscoelastic damper, a shape memory alloy U-shaped damper and channel steel, the viscoelastic damper is formed by stacking a viscoelastic material layer and a steel plate, is fixed between the inner plate and the outer pipe, and is arranged at the end part of the inner plate; when an earthquake acts, the inner plate moves in the axial direction relative to the outer pipe, the viscoelastic material layer is driven to be subjected to shear deformation, and damping force related to the loading frequency is provided; in addition, a plurality of shape memory alloy U-shaped dampers are arranged between the inner plate and the outer pipe at intervals in the supporting axial direction, and the self-resetting capacity is provided through bending deformation. The U-shaped damper and the viscoelastic damper are stressed in parallel, damping energy consumption and restoring force are generated at the same time, the floor acceleration and the base shearing force can be effectively reduced, and the device has the advantages of being simple in structure and reliable in connection.

To provide a viscoelastic damper capable of suppressing deterioration over time due to temperature changes in the installation environment. [Solution] The viscoelastic damper comprises a pair of plate-shaped bodies, a viscoelastic body arranged between the pair of plate-shaped bodies, and a sealing member that isolates the viscoelastic body from the outside, and the sealing member is arranged between the pair of plate-shaped bodies at a position away from the outer peripheral surface of the viscoelastic body.

damping device (40) for an optical system, in particular a projection optic (10) of a lithography system (1), comprising - a supporting, first element (42), in particular a support frame (34) for receiving at least one optical element (36); - a second element (50) incorporated in the first element (42), in particular the optical element (36); and - at least one damping element (38) arranged between the first element (42) and the second element (50), in particular a mechanical end stop, wherein the damping element (38) has a liquid crystalline elastomer (48) with viscoelastic damping properties.

The invention discloses a combined support combining a bio-based composite material framework and a high-performance filling material and a preparation process of the combined support, and belongs to the technical field of bridge engineering materials. According to the support, a porous net-shaped framework is made of a polylactic acid-based composite material, an interface bonding layer is formed on the inner surface of a framework pore through a bio-based polyurethane adhesive, and natural rubber, a viscoelastic damping material or a shape memory alloy complex is poured to serve as a high-performance filling material. The preparation process comprises the key steps of framework compression molding, interface treatment, vacuum pressure filling, segmented vulcanization and the like. According to the technical scheme, through the synergistic effect of the bio-based framework and the functional filling body, the bearing stability and environmental adaptability of the support are remarkably improved, meanwhile, the advantages of being high in maintainability and low in whole life cycle cost are achieved, the support is particularly suitable for a corrosive environment or a bridge engineering scene with the high anti-seismic requirement, and the application prospect is wide. And the balance between mechanical properties and ecological benefits is realized.

The utility model discloses a viscoelastic damper convenient to install, and relates to the technical field of viscoelastic dampers. The viscoelastic damper convenient to install comprises a damper body, the two ends of the damper body are each provided with a fixing plate, the two fixing plates are each provided with at least one locking assembly, and each locking assembly comprises a locking rod, a driving unit and containing grooves located in the two ends of the corresponding fixing plate; at least parts of the two locking rods are located in the corresponding containing grooves. The driving unit is configured to be used for driving the two locking rods to move in the direction away from each other so as to adjust the distance between the far ends of the two locking rods.

The invention relates to the technical field of building materials, and discloses a multi-surface-layer decorative sound-absorbing partition panel manufacturing process which comprises the steps that a multi-surface-layer decorative panel and a back plate are fixed to form a closed cavity; mixing the composite functional resin system and the curing and synergistic system under a specific pressure, and injecting the mixture into the cavity; and carrying out in-situ reaction at a specific temperature to foam and cure the mixture to form the viscoelastic damping core material which is integrally connected with the panel. The technical core is that the composite functional resin system comprises a self-adaptive interface coupling agent, the coupling agent can spontaneously migrate to the inner surface of the panel and be enriched in the in-situ reaction process, an interface of a core material and the panel is constructed by forming chemical bonding, and a traditional adhesive layer is replaced. The production process is simplified; a traditional adhesive is replaced by chemical bonding, so that the interface bonding strength is improved, and the acoustic bridge effect is avoided; through specific core material components, the board has excellent sound insulation and vibration damping performance.

The invention discloses a mechanical retention optical fiber Fabry-Perot liquid level sensor capable of calibrating the cavity length and a method. The sensor comprises a base, an inner conical surface fixing nut, a ceramic ferrule, an adjusting rod, a viscoelastic damping block, a high-reflectivity sensitive diaphragm, a diaphragm fixing screw, a diaphragm fixing block and an F-P cavity. The adjusting rod and the ceramic ferrule are tightly connected through interference fit. A conical surface self-locking jacket is arranged in the base and is matched with an inner conical surface fixing nut to form an axial adjusting and fixing assembly, and accurate mechanical fixing and radial fixing of the ceramic ferrule at any axial position are achieved. Meanwhile, a square notch is reserved in the other end of the base and used for installing the high-reflectivity sensitive diaphragm assembly. According to the sensor structure, the ceramic ferrule and the base can be coaxial, mechanical retention is stabilized, the parallelism of the end face of the ceramic ferrule and the sensitive diaphragm is guaranteed, and the multi-application-scene adaptability of the sensor is guaranteed.

This utility model discloses a connection structure for a plate viscoelastic damper in a structure, used for connecting the viscoelastic damper to the main structure. It includes: a plate viscoelastic damper, a pin, and connecting parts. The plate viscoelastic damper consists of connecting steel plates on both sides, a connecting steel plate in the middle, and a viscoelastic damping layer. The viscoelastic damping layer is formed by alternating layers of rubber and steel plates, vulcanized and bonded. The connecting parts consist of double-clamped plates, a single-clamped plate, and a pin. This utility model utilizes the pin and connecting parts to connect the viscoelastic damper to the structure, avoiding the high temperatures generated during welding from damaging the rubber layer in the viscoelastic damping layer. It also facilitates later maintenance and replacement of the viscoelastic damper by disassembling the pin. This solves the accuracy and quality problems in the production and installation processes of plate viscoelastic dampers, effectively improving construction efficiency and installation quality.

The application provides an assembled staged viscoelastic-friction composite damper, belonging to the technical field of dampers, which comprises a viscoelastic damping unit, a self-resetting friction damping unit and an intermediate connecting plate, the viscoelastic damping unit and the self-resetting friction damping unit are arranged on the two sides of the intermediate connecting plate; the viscoelastic damping unit and the self-resetting friction damping unit each comprise two fixed plates and one movable plate, the fixed plates are connected to the intermediate connecting plate, and the movable plate is arranged between the two fixed plates; a plurality of viscoelastic material blocks are arranged between the fixed plate and the movable plate of the viscoelastic damping unit, and a plurality of friction plates are arranged between the fixed plate and the movable plate of the self-resetting friction damping unit; a plurality of SMA wires are further connected between the fixed plate and the movable plate of the self-resetting friction damping unit, and the SMA wires are used for limiting the displacement of the movable plate along the length direction of the fixed plate; the application can avoid invalid wear of the self-resetting friction damping unit and damage of the viscoelastic damping unit, and effectively dissipate energy and damp.

The application belongs to the technical field of structural vibration control devices, and discloses a high-stability multidirectional vibration isolator. The vibration isolator comprises horizontally arranged upper and lower steel plates, a spiral spring fixed between the upper and lower steel plates, a threaded sleeve and a viscoelastic damping block. The threaded sleeve is rigidly connected to the upper and lower steel plates and located outside the spiral spring. The viscoelastic damping block is arranged in the spiral spring and fixed below the upper steel plate and above the lower steel plate. The viscoelastic damping block is a curved surface. The application improves the vertical vibration isolation effect and displacement control capacity of the spring vibration isolator, makes up for the horizontal vibration isolation defects caused by the insufficient lateral stability of the spring vibration isolator, increases the application scenarios of the spring vibration isolator, and does not excessively increase the implementation complexity, thereby facilitating application.

Viscoelastic damper assembly applicable both in air and submerged applications and with improved efficiency over prior art solutions for adding damping to an object or structure.

This invention relates to the field of vibration reduction system technology, specifically to a broadband damping composite system, its construction method, and its application. The broadband damping composite system comprises a viscoelastic damping layer, an adhesive layer, and a magnesium alloy restraint layer; the viscoelastic damping layer is made of butyl rubber, acrylate polymer, or polyurethane. This invention also provides a construction method for the broadband damping composite system, including the following steps: bonding the viscoelastic damping layer and the magnesium alloy restraint layer together using an adhesive layer to obtain the broadband damping composite system. This invention further provides an application of the broadband damping composite system obtained by this construction method in steel structure floor slabs. This invention solves the problem that existing building damping systems struggle to simultaneously achieve high energy efficiency, extreme lightweight design, broadband adaptability, and ease of implementation.