15 results about "Damping capacity" patented technology

This invention relates to the field of damping and vibration reduction technology, and discloses a bidirectional self-resetting TMD energy dissipation device, including a connecting plate, a load mechanism, and a damping energy dissipation component disposed between the load mechanism and the connecting plate. The damping energy dissipation component includes a hinge ball, with deflection rods rotatably connected to both sides of the hinge ball. The other ends of the two sets of deflection rods are rotatably connected to an L-shaped support plate fixed to the bottom of the connecting plate. This invention overcomes the problems of limited damping and vibration reduction energy dissipation direction and low damping efficiency in traditional dampers. By employing a multi-set distributed design, it can decompose the damping deflection, improve damping capacity and recovery capacity, enhance building stability and safety, facilitate installation and maintenance, achieve damping and energy dissipation in multiple directions, and facilitate counterweight addition and removal operations, making it suitable for different building vibration reduction needs.

The application belongs to the technical field of rail transit damping fasteners, and particularly relates to an air spring damping fastener, which comprises an upper iron pad, an air spring isolator, a lower iron pad, an anchoring system and a spring strip pressing system, wherein the air spring isolator is arranged between the upper iron pad and the lower iron pad and forms a sealed air cavity in the air spring isolator, the air spring isolator provides elastic support and damping effect for the steel rail through compression of the air cavity, the air cavity is communicated with the outside through a valve to realize air pressure adjustment, so as to change the elastic properties of the fastener, and the fastener has adaptive supporting and damping capacity under different load conditions. By introducing the air spring isolator as a core elastic element, the fastener can automatically match the reasonable rigidity under different load conditions, and the damping performance and structural safety are considered at the same time, so that the fastener has good damping effect, load adaptive capacity and engineering application value.

The application discloses the technical field of optical platform, and particularly provides an optical platform with good vibration isolation effect, which comprises an optical platform body, a vibration isolation device and a load-bearing damping device, the optical platform body is supported and connected through the vibration isolation device and the load-bearing damping device, and the optical platform body can stably place optical equipment, the vibration isolation device is arranged around the bottom of the optical platform body, and the vibration isolation device can isolate vibration of the four corners of the bottom of the optical platform body, the application can isolate the vertical vibration direction of the placing platform, increase the vertical vibration isolation capacity of the placing platform, and isolate the side of the placing platform and increase the damping capacity of the side of the placing platform.

The application provides a broadband inertia enhanced vibration isolator and a novel damping track, wherein the broadband inertia enhanced vibration isolator comprises an outer cylinder, a spring, a granular damping inertia container and an inner cylinder, the spring is arranged in the inner cylinder, and the granular damping inertia container is sleeved in the spring; the granular damping inertia container comprises a ball screw pair, a flywheel containing granular substances and a base, the flywheel is coaxially fixedly connected with the ball screw pair at a nut of the ball screw pair; a first end of the ball screw pair is fixedly connected on the outer cylinder, and a second end is connected in the base and can rotate around an axis. The broadband inertia enhanced vibration isolator provided by the application is composed of an outer cylinder, a spring, an inner cylinder and other components, the granular damping inertia container in the broadband inertia enhanced vibration isolator is both an inertia container and a granular damper, and is applied to a track, so that the comprehensive damping capacity of a spring floating slab track in a full frequency band can be effectively improved.

The utility model discloses a kind of spherical shock absorbers, the spherical shock absorber includes: main body, connecting piece and reinforcing part, connecting piece is set to the both ends of main body, reinforcing part is set to the inside of main body;Main body is set to hollow spherical structure, the top and bottom ends of main body along the direction of its axis are respectively provided with connecting end face;Connecting piece is respectively set to the connecting end face at the top and bottom ends of main body;Reinforcing part is set to annular structure, based on this, reinforcing part is embedded to the inner wall surface of main body, and the top and bottom ends of reinforcing part are respectively matched with the inside of two connecting end faces;Then, connecting piece is embedded to corresponding connecting end face and is matched and connected to the corresponding end of reinforcing part.The spherical shock absorber of the utility model can effectively reduce volume under the condition of guaranteeing damping capacity, so that it is more conducive to narrow application scene, and provides excellent damping performance.

The application belongs to the technical field of rail vehicles, and particularly relates to a rubber damping type sequence damping bogie and a rail train. The rubber damping type sequence damping bogie comprises a frame, a damping assembly, a bolster and a wheel set group. The damping assembly comprises an upper rubber damping mechanism and a lower rubber damping mechanism. The bolster is connected with the upper part of the frame through the upper rubber damping mechanism. The wheel set group is connected with the lower part of the frame through the lower rubber damping mechanism. The upper rubber damping mechanism and the lower rubber damping mechanism form a two-stage series rubber damping path. The two-stage series rubber damping mechanism is arranged in series, so that the vibration energy experiences two independent damping dissipation processes in the transmission path. The total damping capacity is significantly higher than that of a single rubber spring scheme, and the technical defect of insufficient damping of the single rubber damping is solved.

The utility model discloses a training protective pad with flame -retardant solid silica gel foam, including two protective pad main parts, the top of two protective pad main parts corresponds and is sleeved with two outer package flame -retardant layers of integral connection, be equipped with flame -retardant foam board between protective pad main part and outer package flame -retardant layer. The utility model, through being equipped with outer package flame -retardant layer, cooperate flame -retardant foam board, play the role of elasticity and flame -retardant protection, and the crack of support storage box body and protective pad main part is equipped with shock -absorbing protection subassembly, plays the role of elastic shock absorption and buffering damping, and the both sides of support storage box body and protective pad main part are integrally equipped with storage hanging buckle subassembly, plays the role of hanging and fixed, makes protective pad main part retractable and be stored in support storage box body, and two support storage box bodies are spliced and folded, makes the device to the fireproof protection performance of protective pad excellent, and gives consideration to structural formula shock -absorbing damping capacity and easy folding storage capacity, and the practicability and convenience are excellent.

The application discloses a hydraulic and pneumatic damping hub, a wheel and an automobile, relates to the technical field of automobile parts, and solves the problems of weak damping capacity and low damping sensitivity of the existing force-damping wheel, improves the damping effect, and specifically has the following arrangement: a hub inner ring and a hub outer ring connected through a plurality of damping connecting rods, two oppositely arranged support plates fixed on the middle position of the inner side surface of the hub outer ring along the ring direction, a plurality of support rods with ball ends uniformly distributed on the outer side surface of the hub inner ring, the support rods located between the two support plates, the plurality of damping connecting rods divided into two groups, the two groups of damping connecting rods obliquely arranged on the two sides of the support plates, one end of the damping connecting rod hinged to the inner surface of the hub outer ring, the other end hinged to the outer surface of the hub inner ring, and one hydraulic and pneumatic shock absorber hinged to each damping connecting rod.

The application provides a magnetic damping device containing an inerter in the field of damping, which comprises a shell, a flywheel assembly, a screw rod, an insulating sleeve, a moving ring, a first magnet, a second magnet, a third magnet and a fourth magnet; when the moving ring moves to the inside of the shell under the action of a thrust force, the moving ring drives the fourth magnet to move to the direction of the third magnet, the third magnet drives the screw rod to move linearly to the direction of the first magnet, and the flywheel assembly rotates simultaneously; the inerter damping structure has the advantages of not only damping capacity, but also simple and exquisite structure, high integration, and the current generated by the change of the magnetic field can be used as a detection signal of vibration.

This invention relates to the field of building engineering technology, specifically to a steel structure connection node with a damping energy dissipation mechanism. The damping energy dissipation mechanism includes a cylinder, inside which a first piston is inserted. A guide rod is fixedly mounted on the first piston, coaxially arranged with the cylinder and slidingly passing through it. At least one adjusting rod is also inserted inside the cylinder, parallel to the guide rod, and has a flow groove on its side wall. The flow groove consists of a middle section located in the middle of the adjusting rod and two adjusting sections located at both ends of the adjusting rod. A first through hole is formed on the first piston, through which the first piston is slidably fitted onto the adjusting rod. The side wall of the first through hole and the flow groove together form a damping flow channel. When the middle section aligns with the side wall of the first through hole, the length of the damping flow channel remains constant. When the adjusting sections align with the side wall of the first through hole, the length of the damping flow channel gradually increases from the middle to the end of the adjusting rod. This allows for adjustment of the damping capacity according to the vibration load.

The application discloses a chain gear transmission type air-free damping wheel and vehicle, relates to the technical field of large engineering operation vehicle hubs, and solves the problems of poor damping effect, easy damage of tires and the like of existing engineering operation vehicles, and increases the separate damping capacity of the wheel, and the specific scheme is as follows: comprising a hub, the hub is composed of a hub inner ring and a hub outer ring which are relatively rotatable, an axle support is fixedly arranged on the inner circular surface of the hub inner ring, the axle support contains two vertically arranged collar support rods, an axle support collar is slidably arranged on the collar support rods and damping springs are arranged between the axle support collar and the collar support rods, an axle main sprocket for fixed connection with an axle is rotatably arranged in the axle support collar, the axle main sprocket is sequentially connected with a transition sprocket and a terminal sprocket arranged in the hub inner ring through a transmission chain mechanism, and a bevel gear is fixedly arranged on the hub outer ring along the ring direction, and the bevel gear on the hub outer ring is meshed with the bevel gear of the terminal sprocket.

The utility model discloses a spring shock absorber, this spring shock absorber includes: seat body, main part, first connecting piece, second connecting piece and elastic part, main part sets up in the top side of seat body, and the bottom of main part is connected with seat body top side surface cooperation, first connecting piece sets up in the geometric center of seat body, and first connecting piece is penetrated from the bottom side surface of seat body to the top side of seat body and is matched to the bottom of main part, second connecting piece sets up in the geometric center of the top of main part, and second connecting piece is penetrated and extends to main part inside from the end face of main part top, and second connecting piece is correspondingly set with first connecting piece, elastic part movably sets up in main part inside, and the both ends of elastic part along its energy absorption direction are correspondingly matched with first connecting piece and second connecting piece respectively. The spring shock absorber disclosed by the utility model can greatly improve the damping capacity of the spring shock absorber based on the synergistic effect of the buffering performance between the main part and the elastic part.

The application provides a composite slot wedge structure for inhibiting rotor eddy current of a two-axis excitation phase modifier and a two-axis excitation motor, and belongs to the technical field of two-axis excitation motors. Compared with a traditional slot wedge structure, the two-axis excitation motor adopts a double-layer composite slot wedge structure of a hard bakelite slot wedge and an aluminum bronze slot wedge, so that the two-axis excitation motor has the damping capacity and the ability of reducing eddy current at the same time, can guarantee the damping and oscillation inhibition capacity of the two-axis excitation motor, and can also run asynchronously with a large slip. The inertia support capacity of the two-axis excitation motor is improved, and the frequency stability of a power system is guaranteed. A multi-branch path ventilation groove is alternately connected by single branches and double branches, the winding heat dissipation area is significantly increased, and the turn conductor heat dissipation coefficient is improved. The stepped auxiliary slot ventilation groove and the unequal outlet diameters of the hard bakelite slot wedge are beneficial to improving the air flow distribution uniformity in each radial ventilation groove and reducing the rotor winding axial thermal imbalance.

The utility model provides a kind of foamed ceramic composite machine bed of integrated cooling runner, including foamed ceramic pedestal, reinforcing rib, workbench, the inside of foamed ceramic pedestal is equipped with the hole structure of net-like distribution, hole structure includes rib hole and runner hole, rib hole is used to fill reinforcing rib, runner hole constitutes cooling medium passage;Runner hole inner wall is equipped with sealing layer, runner hole is equipped with medium inlet and medium outlet on foamed ceramic pedestal side wall;Reinforcing rib is filled in the inner wall of rib hole, and is integrated with foamed ceramic pedestal solidification, form built-in reinforcing framework;Workbench is fixedly arranged on the upper surface of foamed ceramic pedestal, and workbench is integrally connected with reinforcing rib at the orifice of rib hole.This foamed ceramic composite machine bed of integrated cooling runner has active temperature control capability, and has the advantages of lightweight, strong vibration absorption and damping capacity, high structural strength, good dimensional stability.

The application relates to an MXene / amino acid-based polyurethane composite damping material and a preparation method thereof, and belongs to the technical field of high polymer composite materials. The polyurethane is composed of single-layer / few-layer MXene and polyurethane obtained by amino acid chain extension. The polyurethane contains multiple covalent-non-covalent interactions. When an external force is applied, a large amount of relative sliding and friction occurs between polymer molecular chains and between the molecular chains and the surface of MXene. The large-scale and microscopic internal friction directly converts a large amount of mechanical energy into heat energy and dissipates the heat energy, so that good damping capacity is obtained.