8results about How to "Improved dissipation capacity" patented technology

The application discloses a dry-type transformer production equipment and belongs to the field of transformer production. The device comprises a rack, a negative pressure dust collection workbench arranged at the middle part of the rack, a support arranged above the negative pressure dust collection workbench, two groups of support plates arranged at the top of the rack, a driving shaft one rotatably arranged in one group of the support plates, a driving shaft two rotatably arranged in the other group of the support plates, and clamping pieces arranged at the output ends of the driving shaft one and the driving shaft two and used for clamping an insulating cylinder. The negative pressure dust collection workbench is arranged at the middle part of the rack to adsorb and blow away the copper scraps and insulating dust. A hierarchical pressure relief gas path composed of a buffer pipe, a gradually expanding inverted conical middle nozzle and a circular corner exhaust hole pressure reduction circular plate is arranged to weaken the high pressure of the air compressor starting and stopping transient peak value, and the hierarchical pressure relief gas path is cooperated with the air compressor to improve the yield of the dry-type transformer winding.

The application belongs to the technical field of advanced manufacturing and mine machinery equipment, and discloses a preparation method of a full-negative Poisson ratio energy-absorbing component, which solves the problem that the existing energy-absorbing component design cannot meet the high energy-absorbing demand under extreme impact working conditions. The method comprises the following steps: (1) full-parameterization design of a macro-negative Poisson ratio structure based on multi-target Bayesian optimization; (2) preparation and process parameter simulation optimization of a micro-negative Poisson ratio steel forming powder; (3) laser additive-warm subtractive composite preparation of a full-negative Poisson ratio porous structure component; and (4) post-heat treatment of the full-negative Poisson ratio porous structure component and macroscopic and microscopic toughening regulation. The application greatly improves the energy-absorbing efficiency, breaks through the bottleneck of high-precision preparation of a complex interconnected porous structure, and realizes the optimal balance of full-parameterization design and multi-target performance.

This utility model discloses a vibration damping device, wall panel, and mechanical equipment based on a Mikaelian lens. The vibration damping device based on a Mikaelian lens includes: a conformal self-focusing lens; a vibration damping element disposed on a portion of the conformal self-focusing lens corresponding to at least one wave focus; and / or an energy harvesting element disposed on a portion of the conformal self-focusing lens corresponding to at least one wave focus. Thus, by disposing of the vibration damping element and / or the energy harvesting element on the portion of the conformal self-focusing lens corresponding to at least one wave focus, or on a portion of the conformal self-focusing lens adjacent to at least one wave focus, the vibration damping element can suppress vibrations transmitted to the conformal self-focusing lens, and the energy harvesting element can collect and utilize the vibrational energy transmitted to the conformal self-focusing lens.

The application discloses a rail corrugation suppression device and a mounting method, and belongs to the technical field of rail transit. The rail corrugation suppression device comprises a suppression mechanism, the suppression mechanism is symmetrically arranged on both sides of the rail waist of a rail, the bottom of the rail is provided with a fixing mechanism for fixing the suppression mechanism on the rail, an energy consumption box is arranged on the fixing mechanism, and the energy consumption box is located directly below the rail. The suppression mechanism comprises a plurality of box bodies arranged in a linear array, a plurality of first suppression layers and second suppression layers are arranged in the box bodies, and the first suppression layers and the second suppression layers are arranged at intervals. The rail corrugation suppression device and the mounting method can solve the problem that the existing rail corrugation suppression device has poor damping effect on rail vibration and noise.

The present application relates to a multiphase water self-sealing multi-pivot joint anti-explosion device, belonging to the technical field of anti-explosion devices, and is used to solve the technical problems of poor anti-explosion effect and low safety of anti-explosion devices. The anti-explosion device includes: an explosion-proof housing, a connecting pipeline, a first gravity airtight valve, and a first airtight valve gravity hammer. The explosion-proof housing is of a cylindrical structure, and the explosion-proof housing is suitable for containing water; the connecting pipeline includes: an air flow channel, a first opening and a second opening communicated with the air flow channel. The first opening is suitable for communicating with an explosive fluid, the second opening is communicated with the explosion-proof housing, and the second opening is located below the water level; the first gravity airtight valve has a first state and a second state. In the first state, the first gravity airtight valve can be closed under the gravity of the first airtight valve gravity hammer to disconnect the first opening from the second opening. In the second state, the first gravity airtight valve can be opened under the action of the air explosion airflow to connect the first opening with the second opening.

This invention discloses an additive manufacturing-based inertial amplification nonlinear low-frequency vibration isolation metamaterial structure, vibration isolation device, and its performance control method. The vibration isolation metamaterial structure includes a rhombic frame structure, an inertial amplification unit, and a square spring structure. The square spring structure is arranged within the rhombic frame structure, with its two ends connected to a pair of opposite corners of the rhombic frame structure. The elastic extension direction of the square spring structure is parallel to the diagonal of this pair of opposite corners of the rhombic frame structure. The inertial amplification unit has a centrally symmetrical structure, including a rigid rod, two counterweights, and two diagonal rods. The center of symmetry of the inertial amplification unit, the center of the rhombic frame structure, and the center of the square spring structure all coincide in projection. Therefore, the vibration isolation metamaterial structure of this invention significantly widens the bandgap range and enhances low-frequency vibration isolation performance, exhibiting excellent performance in suppressing longitudinal waves in the 0-1000Hz low-frequency range, increasing vibration damping, and energy absorption.

The invention relates to a floating plate type tuning liquid damping device which comprises a water tank and liquid in the water tank and further comprises a floating plate, a sliding connection assembly and a gravity center adjusting assembly, the floating plate is arranged in the water tank, and the sliding connection assembly surrounds the periphery of the floating plate and is used for being in sliding connection with the interior of the water tank in the vertical direction; the sliding connection assembly is provided with an energy consumption unit used for increasing resistance. The gravity center adjusting assembly is arranged at the top of the floating plate and used for changing the gravity center of the floating plate. Vibration energy can be more effectively dissipated, and the vibration reduction effect is remarkably improved.

This invention relates to the field of interlayer technology in laminated glass, and particularly to a binary composite plasticized gradient structure PVB interlayer, its preparation method, and laminated glass. The interlayer has a three-layer gradient structure, consisting of a first surface layer, a middle sound-insulating layer, and a second surface layer from the outside in. Both the first and second surface layers contain a first PVB resin and a first composite plasticizer, which includes diethylene glycol dibenzoate and 3GO. The middle sound-insulating layer contains a second PVB resin and a second composite plasticizer, which includes a mixture of diethylene glycol dibenzoate and 3GH. This invention, through innovative material formulation and structural design, provides a PVB interlayer solution that balances high weather resistance, excellent sound insulation, strong adhesion, low plasticizer migration tendency, and additional heat insulation functions. It also includes a stable and efficient preparation method, effectively overcoming the limitations of existing technologies where performance cannot be synergistically improved.