194 results about "Latticework" patented technology

The invention belongs to the technical field of computer aided design and structural design, and discloses a multi-scale lattice structure and a design method thereof. The design method comprises the following steps: S1, designing a cubic unit cell with eight symmetrically distributed corner nodes according to a cubic lattice structure; s2, all the lattice unit cells are zoomed, one part of the lattice unit cells are zoomed into small lattice unit cells with the size being half of the original size, and the other part of the lattice unit cells are large lattice unit cells with the original size reserved; s3, in the macroscopic lattice structure, arranging the position relation of the small lattice unit cells and the large lattice unit cells; and S4, through a computer aided design method, adjusting the macroscopic lattice structure by adopting a large and small lattice unit cell connection mode based on rod diameter transition. A multi-scale large and small lattice unit cell arrangement mode is introduced into the lattice structure, so that the lattice structure has better mechanical performance under the same compression load.

The invention discloses a TPMS (Tire Pressure Monitor System) lattice design method, a lattice structure, a storage medium and a device, which are applied to the technical field of TPMS lattices, and the design method comprises the following steps: establishing a coordinate system o-xyz by taking the lattice direction of a TPMS basic unit cell as a reference; gradient transformation is carried out on the TPMS basic unit cells in the x-axis direction, and a gradient column structure is obtained; performing gradient transformation on the gradient column structure along the y-axis direction to obtain a gradient layer structure; array copying is conducted on the gradient layer structure in the z-axis direction, and a TPMS lattice is obtained. The lattice structure is obtained by adopting the design method. A terminal program is stored in the storage medium, and the design method is carried out when the terminal program is executed. The device comprises a memory, a processor and a computer program in which steps corresponding to the design method are stored. The TPMS lattice structure is expanded from one direction to a plurality of directions, so that the lattice structure can form continuously changing rigidity distribution in a plurality of lattice directions, a multi-direction continuous stress diffusion path is formed, and the impact resistance of the TPMS lattice is further improved.

The invention discloses a novel structure construction method using a gradient triple-period minimal surface lattice. The novel structure construction method comprises the following steps: defining a mathematical relationship of an entity part of a TPMS lattice according to a selected scene; the standard TPMS lattice in the original cube is deformed and matched into the pyramid space, a transition structure is formed, and a final TPMS distortion structure is output; connecting the upper-layer small unit lattices with the lower-layer large unit lattices by the TPMS twisted structure to generate gradient lattices without geometric defects; the gradient between different unit numbers is controlled by controlling the size of the top plane of the pyramid; the size of the transition area is adjusted, the transformation completion distance of the substructure is changed, and then the elastic modulus is adjusted and controlled; the number of layers of the base structure in the transition area is increased, and the buffering distance of structure transformation is prolonged. The problems that in the prior art, a gradient lattice transition area has geometric defects, the adjustable range of elastic modulus is small, and stress is concentrated are solved, and the stability and durability of the structure are improved.

An arc chamber that includes one or more components that include a low thermal conductivity region is disclosed. The low thermal conductivity region may be formed using additive manufacturing to create a lattice pattern, stochastic infill, or hollow void. The low thermal conductivity regions are used to direct the flow of heat to desired areas, such as the faceplate of the arc chamber. The lattice pattern may be located within the end plates of the arc chamber, such that the heat from the cathode and repeller are directed toward the faceplate and away from the bottom of the arc chamber. The lattice pattern may also be located in the side walls and the bottom wall to reduce the amount of heat that is lost to the environment through conduction and radiation.

An additively manufactured lattice includes a plurality of symmetrically oriented repeating unit cells. Each of the unit cells is comprised of a vertically oriented tubular structure having a top edge and bottom edge, said tubular structure defined by a circumferential side wall extending from said top edge to said bottom edge. The side wall has a lower portion, an intermediate portion, and an upper portion, with the lower portion terminating at the bottom edge, the upper portion terminating at the top edge, and the intermediate portion positioned between the lower portion and the upper portion. A plurality of spaced legs is included with each unit cell, with each leg formed as an outfolding of the side wall, each outfolding beginning at the side wall intermediate portion and extending progressively further outward through the side wall lower portion to the bottom edge.

The invention discloses a lightweight cylindrical lattice structure based on bionic gulfweed stalks, and belongs to the technical field of lightweight lattice structures. The problems that an existing cylindrical lattice structure is generally weak in bearing capacity and too fast in rigidity attenuation under the condition of low relative density are solved. The invention discloses a lightweight cylindrical lattice structure based on bionic gulfweed stalks. The lightweight cylindrical lattice structure is mainly a hollow cylindrical structure formed by arraying a plurality of lattice unit cells. Each lattice unit cell comprises an outer truss, an inner truss and an inclined connecting rod, the outer trusses and the inner trusses are the same in structure, the outer trusses are arranged outside the inner trusses in a sleeving mode and are arranged in the same shape, and the vertex angles of the outer trusses and the vertex angles of the inner trusses are connected into a whole through the inclined connecting rods; the outer trusses between every two adjacent lattice unit cells share one frame, so that an integrated cylindrical lattice structure is obtained. A bionic principle is adopted, and a cylindrical lattice structure with light weight and high mechanical property is obtained.

The invention discloses an optimization method and system for a lattice support, computer equipment, a medium and a computer program product. The optimization method for the lattice support comprises the following steps that a 3D printing model corresponding to a target part and the lattice support of the 3D printing model are obtained; wherein the lattice support is composed of a plurality of support units; determining a suspended support unit in the lattice support; wherein the suspended supporting units are supporting units of which the lower ends are spaced from a construction plane and are not capable of bearing and supporting; and for each suspended supporting unit, establishing a connecting support which is connected with the lower end of the suspended supporting unit, can form a bearing support between the lower end of the suspended supporting unit and the construction plane and comprises at least one supporting unit, so as to obtain an optimized lattice support.

To provide a manufacturing method of a fence capable of improving workability.SOLUTION: A manufacturing method of a fence includes the following steps. a. A step of erecting support pillars 1, 1... at intervals. b. A step of mounting lattices 3, 3... on longer direction both end parts of furring strips 2, 2 and assembling lattice units 4a, 4b. c. A step of mounting the lattice units 4a, 4b on the support pillars 1, 1... d. A step of mounting the lattices 3, 3 on a longer direction intermediate part of the furring strips 2, 2 of the lattice units 4a, 4b.SELECTED DRAWING: Figure 5-1

A transparent wood surface imprinting optical device is provided. A preparation method for the device includes cleaning and drying surfaces of transparent wood, spin-coating polymethyl methacrylate (PMMA) on a substrate of the transparent wood to obtain a PMMA layer, and spin-coating an ultraviolet (UV) glue on the PMMA layer to obtain a UV glue layer; placing the transparent wood on a silicon wafer, attaching a transparent grating array imprinting template on the UV glue layer, exposing the UV glue layer, and removing the transparent grating array imprinting after the exposing, thereby to obtain a grating-structure-based transparent wood; and replacing the grating structure imprinting template by a lattice structure imprinting template to prepare lattice-structure-based transparent wood. The diffraction efficiency of the grating structure and the lattice structure on the transparent wood are greater and more stable than those of PMMA substrates.

The present invention discloses a method for preparing a voxelized multi-material structure based on the capillary cascade effect. The above-mentioned preparation method includes the following steps: S1 constructing a lattice unit model with different implosion pressures in software and arranging them in three dimensions, and using a 3D printer to print out the arranged lattice units to obtain a microlattice structure; S2 injecting a precursor solution into the microlattice structure and filling its internal space; S3 depositing the precursor solution in the target lattice unit based on the capillary cascade effect by liquid depletion; S4 solidifying the precursor solution deposited in the target lattice unit to form a single-material voxel structure; S5 repeating steps S2-S4, sequentially depositing and solidifying different precursor solutions in lattice units with different implosion pressures, to complete the preparation of the voxelized multi-material structure. The purpose of the present invention is to provide a voxelized multi-material preparation method that can be completed with high precision and speed using simple equipment.

The utility model relates to the technical field of building engineering, concretely relates to the optimization design of the structure of external scaffold and steel sheet net connecting device, the utility model is realized through the following technical scheme: a kind of external frame steel sheet net connecting device, including connecting steel pipe and connecting plate, the one end of connecting steel pipe is provided with the slot for the insertion of connecting plate along its length direction, and the slot extends the clamping interface of connecting steel pipe in the circumferential direction;Connecting plate includes the horizontal main part of part insertion in the connecting steel pipe, and the convex part of the clamping interface resistance cooperation that is outwardly extended horizontally from horizontal main part. The utility model aims at the improvement of the structure of connecting steel pipe and connecting plate itself, the stable connection of both can be realized without additional connecting bolt, eliminate the security risk caused by bolt drop, enhance the security and stability in construction process.

The application belongs to the technical field of compressed air energy storage, and particularly relates to a compressed air system waste heat cross-seasonal storage device and method based on solid-state compression card effect, comprising: an air compression loop, a compression heat storage loop and a compression heat release loop. The application recycles compression heat to heat compression card materials, changes the lattice structure of the materials, and stores the compression heat energy in the compression card materials; when heat supply is needed, a certain pressure is applied to the compression card materials, the lattice structure of the materials returns to the original state, and a large amount of heat energy is released. The application can realize cross-seasonal and long-time storage of heat, and can controllably release heat energy according to different heat supply requirements, realizes recycling and reuse of waste heat, and effectively improves energy utilization rate.

The invention relates to the technical field of additive manufacturing, and discloses a supporting structure for additive manufacturing of a large-size thin-wall workpiece, which comprises a hollow rib plate control frame, a variable density lattice support and a solid grid lattice distribution structure, the hollow rib plate shape control frame is arranged in the thin-wall part or in an opening area, the variable-density lattice support is arranged at a key part and an easy-to-deform area of the thin-wall part, and the solid grid lattice distribution structure is arranged in a stress concentration area or a sudden change surface area of the thin-wall part. A sawtooth cutting contact structure is arranged at the contact part of the cutter and the thin-wall part; according to the supporting structure for additive manufacturing of the large-size thin-wall part, mechanical linkage and thermal expansion self-adaption design of the movable assembly are utilized, transmission cooperation of a driving plate, a toothed plate and a gear is combined with the limiting effect of a bevel gear set and a limiting plate, an abutting plate is attached to the inner wall of a frame all the time, and gaps and stress concentration caused by thermal expansion are counteracted; and the supporting stability and the fitting degree are maintained.

This invention relates to the field of parts processing equipment technology, and discloses a modular assembly and welding equipment for metal chassis parts. The equipment includes a processing table with adjustment slots on both sides of the top center of the processing table. A central plane seat, movable forward and backward, is slidably connected within each adjustment slot. A workpiece positioning mechanism, mounted on the processing table, is used to position the vertical columns and internal partitions of the chassis to be welded before processing. By adding and setting the pre-processing mechanism, the internal partitions can be uniformly preheated throughout the entire area. This method not only avoids softening and deformation of the sheet metal caused by localized overheating, but also slowly releases the residual lattice stress from previous bending and stamping processes, laying the foundation for subsequent welding shrinkage balance. Simultaneously, pulsed current further enhances the stress release effect, maintaining the original mechanical properties of the partitions without additional heat input and solving the problem of pre-processing lattice distortion.

A hot-dip plated steel sheet includes a hot-dip plated layer formed on a steel sheet. An absolute value of a difference in an area fraction of a first region between a pattern portion and a non-pattern portion is 30% or more. A cross section parallel to a surface is exposed at any position of 3t / 4 position, t / 2 position, or t / 4 position from the surface of the hot-dip plated layer, virtual lattice lines are drawn on each of the cross sections, a region in which a proportion of an area fraction B of a [Zn phase] to a total area fraction A of the [Zn phase] and an [Al / MgZn2 / Zn ternary eutectic structure] is 20% or more in each of a plurality of regions partitioned by the lattice lines is defined as the first region, and a region in which the proportion is less than 20% is defined as the second region.

The utility model belongs to the technical field of 3D printing, and particularly relates to a 3D printing waterproof sunscreen mask. The utility model discloses a 3D printing waterproof and sunscreen mask which mainly comprises an elastic structural surface and a lattice structural surface. The lattice structure surface is arranged on the elastic structure surface; a plurality of air channels are arranged in the lattice structure surface; the lattice structure surface can fit the human body surface. The 3D printing waterproof and sunscreen mask fits the facial contour of a user, has good air permeability, is comfortable to wear, and also has waterproof and sunscreen effects.

The invention provides a three-dimensional staggered lattice structure design method derived from a two-dimensional grid, and belongs to the technical field of lattice structure design. The method comprises the following steps of: 1, performing array and dislocation displacement on two-dimensional grid unit cells to form a three-dimensional staggered lattice structure; 2, when the dislocation displacement distance is smaller than the single-layer thickness and equal to the single-layer thickness, additional connecting rod pieces do not need to be added between two adjacent layers of two-dimensional grid unit cells for connection, and when the dislocation displacement distance is larger than the single-layer thickness, additional connecting rod pieces need to be added between two adjacent layers of two-dimensional grid unit cells for connection; 3, when the dislocation displacement distance is larger than the thickness of a single layer, the number and positions of interlayer connecting points between two adjacent layers of two-dimensional grid unit cells and the form of connecting rod pieces are designed according to requirements, and optimization is conducted through topological optimization and rod piece hollowing. Compared with an original two-dimensional grid structure, the weight and the occupied space are not greatly increased, the out-of-plane rigidity is greatly improved, and the structure is simple and effective.

The application discloses a three-dimensional lattice array structure with a controllable z-direction Poisson's ratio, and a basic unit comprises a lower bottom layer, an upper bottom layer, an intra-unit connecting rod and an inter-unit connecting rod, and the intra-unit connecting rod and the inter-unit connecting rod are symmetrical about the lower bottom layer or the upper bottom layer; a surface formed after arraying the lower bottom layer and the upper bottom layer is a novel negative Poisson's ratio plane structure, which comprises a central concave-arc-side hexagonal structure composed of concave-arc-sides and a chiral structure composed of plane connecting rods, and the plane connecting rods of the lower bottom layer and the upper bottom layer are opposite to each other around the direction of the central concave-arc-side hexagonal structure. The structure proposed by the application couples a chiral structure and a concave-arc-side polygonal structure on the upper bottom layer and the lower bottom layer, has a negative Poisson's ratio characteristic, and simultaneously improves the deformation capacity and the energy absorption and vibration reduction characteristics of the structure; the three-dimensional lattice array structure proposed can change the inclination direction of the connecting rods according to actual requirements, so as to realize a variable Poisson's ratio characteristic, and thus the application range of the structure is expanded.

Methods and an induction curing system for curing a composite panel. The induction curing system comprises; a rigid curing tool configured to hold a composite material; a vacuum bagging material sealed to the rigid curing tool; and a dimensional control structure having a lattice and an open casing formed of a rigid material, the lattice positioned within a concavity of the open casing, the dimensional control structure sealed to at least one of the vacuum bagging material or the rigid curing tool.

This application provides a heat dissipation module and a motor. The heat dissipation module includes a housing and a lattice structure. The lattice structure includes multiple stacked lattice sub-parts, each lattice sub-part having multiple heat dissipation sub-channels spaced apart along a direction perpendicular to the stacking direction of the lattice structure. The arrangement directions of the heat dissipation sub-channels of adjacent lattice sub-parts are different. Along the stacking direction of the lattice structure, the heat dissipation sub-channels of the multiple lattice sub-parts are sequentially connected to form a heat dissipation channel penetrating the housing, which is used for the flow of cooling gas. This application uses a lattice structure formed by multiple lattice sub-parts as a heat sink, which increases the heat dissipation surface of the heat dissipation module, ensures sufficient flow space in the heat dissipation channel, and, by limiting the arrangement directions of the heat dissipation sub-channels of adjacent lattice sub-parts to different directions, results in a heat dissipation channel composed of heat dissipation sub-channels of various shapes, which is beneficial for creating turbulence in the cooling gas, thereby improving the heat dissipation effect of the heat dissipation module.

The present invention discloses a flexible floating net wave-breaking device and its implementation method. The device includes relatively arranged support brackets, a double-layer wave-breaking net, a plurality of liquid-carrying buoys, and tension cables. The wave-breaking net is composed of a plurality of lattice mesh units arranged in a matrix. The lattice mesh units are fishbone-like structures, including an I-shaped main structure and a plurality of highly elastic ribs arranged on both sides of the I-shaped main structure. Each lattice mesh unit is provided with a plurality of cable-through structures, which are connected to the support brackets by tension cables passing through the cable-through structures. The double-layer wave-breaking nets are arranged in parallel. The liquid-carrying buoys are arranged between the double-layer wave-breaking nets and arranged in a matrix. The liquid-carrying buoys are provided with perforations, which are connected to the support brackets by tension cables passing through the perforations. By arranging the flexible wave-breaking net and the liquid-carrying buoys, the device can effectively absorb wave energy and reduce erosion of coastlines and marine structures. It has the advantages of low cost, easy installation, and environmental friendliness.

The present invention relates to lattice materials (5) used in many engineering fields, particularly materials engineering. These materials are formed from a lattice structure (1) comprising an inner element (2) in the form of an irregular polygon having at least six edges, with struts arranged along each edge to create at least one triangle (3.1).

A porous media transport diffusion plate is provided. The porous media diffusion plate has an outer support perimeter configured to be coupled to a process chamber that delivers a flow of material through the porous media transport diffusion plate; and a built porous media transport layer has a plurality of lattice structures contained in the outer support perimeter to receive and diffuse the flow of material. The lattice structure is formed by a plurality of struts and plurality of ribs coupled by joints and connection points.

The embodiment of the present disclosure provides an anti-impact and vibration-reducing and noise-reducing integrated multifunctional metamaterial structure and a preparation method thereof, and relates to the technical field of multifunctional metamaterials.The method comprises the following steps: manufacturing a super-elastic material structure, which is based on a curved beam structure; taking the super-elastic material structure as a core and a polygonal metal frame as a boundary, a single cell structure with super-damping effect is constructed; the single cell structure is constructed into a lattice structure in the form of a fractal structure, and the lattice structure is arranged according to a preset requirement to synthesize a metamaterial plate; and the polygonal metal frame boundary form and the number of the metamaterial plates are adjusted according to an application scenario to form an anti-impact and vibration-reducing and noise-reducing integrated multifunctional metamaterial structure.The anti-impact and vibration-reducing and noise-reducing integrated multifunctional metamaterial structure and the preparation method thereof can solve the defects that the current anti-impact metamaterial structure has a large thickness and a single function and is difficult to be applied to actual engineering problems.

The invention relates to a large-aperture reflector lightweight topological structure based on three-stage reinforcing ribs, a reflector is composed of a plurality of groups of hexagonal lattice arrays, a plurality of first-stage equilateral triangles are processed in each hexagonal lattice, and the sides of the first-stage equilateral triangles form first-stage reinforcing ribs; every six first-stage equilateral triangles form a second-stage equilateral triangle, and the edges of the second-stage equilateral triangles are heightened and thickened on the basis of the first-stage reinforcing ribs to form second-stage reinforcing ribs; the outermost side of each second-level equilateral triangle serves as the side of the hexagonal lattice, and the height and the thickness are increased on the basis of the second-level reinforcing ribs, so that third-level reinforcing ribs are formed. According to the invention, the weight of the large-aperture reflector can be fully reduced, and the lightweight rate of the reflector is improved.

The invention relates to the technical field of metamaterial lattice structures, in particular to a construction method of a mixed positive and negative Poisson's ratio structure. According to the method, a lattice structure is constructed based on a plurality of FCC, then the lattice structure and a 3D RH structure are fused to form a new concave lattice structure, and the structure solves the problems that an existing negative Poisson's ratio structure is large in plastic section stress fluctuation and low in platform stress under compression loads, so that the energy absorption performance of the negative Poisson's ratio structure is improved, and the energy absorption performance of the negative Poisson's ratio structure is improved. The invention discloses a mixed positive and negative Poisson's ratio structure constructed by the method, a metamaterial comprising the structure and a preparation method of the metamaterial.

The present disclosure provides a 3D-printed bicycle saddle including a shell and an elastic pad disposed on the shell, wherein the elastic pad has a bottom surface facing the shell and a top surface facing away from the bottom surface. The elastic pad features a 3D-printed lattice structure including a plurality of lattice struts, wherein the diameter of each lattice strut gradually increases in a gradient manner from the top surface to the bottom surface of the elastic pad. The difference between the maximum diameter and the minimum diameter of each of the lattice struts is smaller than or equal to 0.5 mm.