370 results about "Latticework" patented technology

The invention relates to an intelligent management and control method for a building energy-saving wall and a lattice structure wall applying the method, and solves the problems that although a traditional heat insulation material can reduce heat conduction, the function is single, and heat cannot be actively adjusted. Setting weights for the input data, and calculating the sum of the input data by adopting a weighted average method; according to a mapping relation between an interval range in which the sum of the input data falls and a grade, analyzing and determining the grade corresponding to the thermal working condition; according to the mapping relation between the thermal working condition grade and the overall regulation and control scheme, the overall regulation and control scheme is analyzed and determined, the determined overall regulation and control scheme is executed, and the overall regulation and control scheme comprises a phase change material regulation and control scheme, a lattice structure regulation and control scheme and a heat exchange fluid regulation and control scheme. The method has the following effects that the heat condition of the building is accurately regulated and controlled, the heat performance of the wall is improved, and efficient energy saving and intelligent management are achieved.

The invention provides a heat exchanger design method based on a mixed TPMS structure, and relates to the technical field of heat exchange, and the method comprises the following steps: 1, combining a sigmoid function to realize smooth transition of two original typical TPMS structure curved surfaces so as to construct a flexible mixed TPMS lattice structure mathematical expression; 2, lattice units are output in three-dimensional modeling software according to the obtained flexible mixed TPMS lattice structure mathematical expression; thirdly, periodic arrays of the target lattice units in a space coordinate system are achieved according to the structural requirements of a heat exchanger shell, independence of a hot flow basin and a cold flow basin is achieved by sealing opposite fluid areas at a hot fluid inlet and a cold fluid outlet respectively, and finally a flexible mixed heat exchange core structure is obtained and filled into the heat exchange shell to obtain the heat exchanger; and 4, flow and heat transfer characteristic analysis is carried out on the TPMS heat exchanger with different flexible mixing so as to obtain the optimal design. And by adopting the flexible TPMS structural design, the heat exchange area can be increased under the condition that the size is kept unchanged, so that the heat exchange performance is improved.

The invention relates to the technical field of welding, in particular to a battery shell laser welding process method and device.The battery shell laser welding process method comprises the steps that a battery shell joint face is subjected to laser fine tuning treatment, and image data are obtained; obtaining a lattice structure data set of the micro lattices, adjusting the arrangement direction and the grain boundary position of the micro lattices to optimize the lattice structure data set, and obtaining an optimized grain distribution data set; microtopography data in the surface state of the joint face are recognized to obtain surface roughness data, thermal stress simulation analysis is conducted, region division processing is conducted on the thermal stress distribution situation to obtain a thermal stress gradient data set, and the thermal conductivity difference of the joint face is analyzed based on the thermal stress gradient data set to obtain a thermal transfer data set; and the heat transfer data set and the grain distribution data set are combined, optimal laser welding parameters are obtained, and a welding robot is controlled to conduct welding. Welding defects caused by uneven thermal stress in the battery shell welding process are reduced, and the consistency of welding quality is improved.

A heat protective sleeve includes a body being cylindrical extending along a longitudinal direction and comprising a triply periodic minimal surfaces (TPMS) structure, an open cell foam structure, or a lattice structure. A strip extends along the longitudinal direction of the body. The strip is a same material as the TPMS structure, the open cell foam structure, or the lattice structure. The material of the strip is solid and without holes through it. An endcap removably couples to the body. In some examples, the body has fastening threads and the endcap has mating threads. The mating threads of the endcap are configured to engage with the fastening threads of the body to releasably couple the endcap to the body.

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 an ice hockey helmet 3D printing lining and a printing method thereof, and relates to the technical field of helmets, the ice hockey helmet 3D printing lining comprises a first helmet lining, a second helmet lining, a third helmet lining and a fourth helmet lining, under the cooperation of a double-layer lattice structure, a single-layer lattice structure, an elastic layer, a breathable layer, an external force dynamic adjusting layer, a buffer memory layer, a temperature adjusting layer and an attaching positioning layer, all functional layers are tightly combined into a whole through the layer-by-layer construction advantage of the 3D printing technology, the structural integrity and function collaboration of the lining are improved, and the service life of the lining is prolonged. The helmet lining is comprehensively improved in the aspects of protection, comfort, air permeability, sweat absorption adjustment and the like, in the printing process, gradual change type parameter adjustment is adopted in a transition area of a single-layer lattice structure and a double-layer lattice structure, smooth connection is improved, and the printing quality of the helmet lining is improved. And stress concentration points are avoided, so that the shape can be effectively changed and the impact force can be dispersed when the whole body is impacted.

A three-dimensional (3-D) composite structure has a 3-D lattice structure that includes a plurality of struts, a matrix phase surrounding the 3-D lattice structure, and a strain limiting structure positioned at or near a center of the 3-D lattice structure. The strain limiting structure is fixed to at least one of the plurality of struts. The 3-D composite structure can be made using additive manufacturing techniques.

Disclosed are lattice materials including a truss structure obtained by arranging struts to form at least two triangles on each side of a polygon (i.e., a triangle, a quadrilateral, or a hexagon), which are used in many engineering fields, especially in materials engineering. The elastic modulus values per unit weight of many of the lattice materials produced from the truss structure are higher than those of the most existing cellular solids with stochastic cell distributions and many existing lattice materials. Using the truss structure disclosed herein, it is possible to produce two-dimensional (planar) lattice materials as well as spherical or tubular lattice structures in the form of a first cylindrical tube or a second cylindrical tube.

An aerospace panel includes a first skin, a second skin spaced apart from the first skin, and a first truss structure connecting the first skin to the second skin. The first truss structure includes a plurality of truss members. Each truss member is integral with the first skin and the second skin, such that the first skin, the second skin, and the first truss structure collectively form a single monolithic joint-free structure. At least one of the skins also includes at least one lattice region that includes a lattice grid and an array of openings.

A self-climbing tower crane includes a crane base configured to be placed on a support at a hoisting site, tower segments to erect a crane tower, a crane tower lifting unit mounted on the crane base, and a slewable jib unit. The tower crane is configured to, with the slewable jib unit connected to an upper tower segment, erect the crane tower by stacking tower segments onto one another from below to lengthen the crane tower under the slewable jib unit. The crane tower includes an upper section to be composed of a series of multiple upper tower segments and a lower section to be composed of a series of multiple lower tower segments. Each upper tower segment is embodied as a tubular girder type tower segment. Each lower tower segment is embodied as a latticed structure type tower segment. The tower crane further includes an upper stabilizer device and a lower stabilizer device, each configured to horizontally connect the upper section of the crane tower to an external tall structure, e.g. a wind turbine mast.

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 present invention discloses a sound-generating device, which relates to the technical field of sound boxes. The sound-generating device includes a shell, a lattice structure and a sound-generating device. The shell is provided with a mounting cavity and a sound outlet connected to the mounting cavity. The lattice structure is provided in the mounting cavity. The lattice structure is provided with a receiving groove corresponding to the sound outlet. The lattice structure is a porous structure formed by connecting a plurality of ribs. The sound-generating device is provided in the receiving groove and corresponds to the sound outlet. The volume of the mounting cavity is defined as V1, and the volume occupied by the plurality of ribs in the lattice structure is defined as V2, V2 = (0.5% to 30%) V1. The present invention aims to provide a sound-generating device that effectively improves the resonance phenomenon. The sound-generating device not only increases the acoustic volume in the shell, but also does not block the transmission of sound waves in the shell, and at the same time improves the resonance phenomenon of the shell, thereby effectively improving the acoustic performance and sound quality of the sound-generating device.

A golf club head that includes a body that has a topline, a sole, and a front face. The front face defines a rear surface that extends along a plane and the body defines a center of gravity plane. The golf club head also includes a lattice structure formed on a portion of the body, layer by layer, via an additive manufacturing process. The portion of the body is bounded by the plane, the center of gravity plane, and an intersection between the plane and the center of gravity plane.

The invention provides a design method and system for a load-bearing and impact-resistant integrated support with variable lattice filling density. The design method comprises the steps that initial structure design of an aircraft support is completed; the initial structure of the aircraft support is decomposed into a lattice filling area and a non-filling area; determining a lattice filling density rule in the lattice filling area; performing lattice filling on the lattice filling area to obtain lattice filling area structures with different lattice unit wall thicknesses, and calculating to obtain an optimized structure of the aircraft bracket according to the lattice filling area structures with different lattice unit wall thicknesses and the non-filling area; performing modal analysis on the lattice filling structure; fitting the relationship between the lattice unit wall thickness and the inherent frequency of the optimized structure of the aircraft support under the current lattice packing density rule; and selecting the lattice unit wall thickness under the current lattice filling density rule and carrying out lattice filling to complete the design of the aircraft bearing and shock-resisting integrated support with the variable lattice filling density. According to the invention, the frequency selectable design of the structure model is realized.

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.

The invention belongs to the technical field of mechanical metamaterials, and particularly discloses an energy-absorbing three-dimensional metamaterial with interactive combination of positive and negative Poisson's ratio structures, which comprises a plurality of microcosmic unit structures, each microcosmic unit structure comprises a reverse four-chiral auxetic structure and a bionic diagonal bracing structure, and the reverse four-chiral auxetic structures and the bionic diagonal bracing structures are arranged in an interactive combination manner. According to the technical scheme, the microscopic unit structures are three-dimensional structures and are simple in structure, the lattice metamaterial obtained by combining the microscopic unit structures has good isotropic characteristics and has three-stage strain hardening characteristics under the compression effect, the plastic deformation capacity is enhanced, the energy absorption capacity of the structures is effectively improved, and the energy absorption efficiency of the structures is improved. And the bearing capacity is relatively high. The structure size of the metamaterial can be flexibly adjusted according to an actual scene, and the metamaterial can be used as a part or a structural member to be flexibly applied to different fields.

A mechanical metamaterial adaptive to an applied stress comprises a plurality of meta-capsules arranged in a lattice structure. Each meta-capsule comprises a plurality of rigid parts and a plurality of elastically deformable soft parts coupled to the plurality of rigid parts, such that at least a subset of the plurality of meta-capsules undergo a reconfiguration under the applied stress. The reconfiguration includes a deformation of the soft parts of the meta-capsules in the subset, and a reduction of a gap between adjacent rigid parts of the meta-capsules in the subset, thereby increasing a stiffness of the mechanical metamaterial from a first stiffness to a second stiffness when the adjacent rigid parts come into contact.

The invention belongs to the technical field of additive design, comprises structure improvement and simulation analysis, and relates to an additive pipe fitting topological structure design method based on a three-period minimal curved surface. And different TPMS crystal lattices are applied to design, so that the TPMS system can adapt to various working conditions with different loads. Different filling modes are selected according to the geometrical morphology of the to-be-filled area, so that the number of interrupted areas is smaller, and the design freedom degree is higher. Through a gradient wall thickness command, a rod diameter gradual change effect appears in a non-contact area of a TPMS lattice and a part, and the supporting capacity is effectively enhanced under the condition that the removal difficulty is not improved. Adjustment of different unit densities enables TPMS crystal lattices to independently perform enhanced control on stress concentration points without affecting other areas. The actual conditions of a wind field and a temperature field are described through conjugate heat transfer analysis modeling, so that heat conduction and forced convection exist in the whole physical field at the same time, and the result accuracy is improved. According to static analysis, TPMS crystal lattices with the better strengthening effect are selected from the angle of load resistance.

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.

This invention relates to a method for entire removal of a space truss, and an assistive support mechanism therefor. The assistive support mechanism is arranged on a vertical support rod of a truss structure, the assistive support mechanism comprises an assistive support assembly, a lattice support member, and a conversion platform. The lifting assembly is arranged at a top of the conversion platform and comprises a stranded wire, a lifting member, and a control member. The method for entire removal of a space truss comprises mounting the assistive support mechanism, and performing initial removal of the truss structure; lowering the truss structure; and then performing secondary removal of the entire space truss. The major removal work is done on the ground, thereby reducing the requirement for removal-assisting measures and the operational risks, and improving the working efficiency.

The utility model relates to the technical field of shoe sole components, in particular to a 3D printing foot arch supporting structure which comprises a shoe sole and a supporting component, and the supporting component is installed at the foot arch of the shoe sole. Wherein the supporting component comprises frames and a lattice structure, the lattice structure is formed by stacking a plurality of hollow polygonal parts, the sides of the lattice structure are connected with the frames, the frames are installed on the two sides of the arch of the shoe sole, and the lattice structure is installed on the plane of the arch of the shoe sole. The supporting component is arranged on the arch portion of the sole, the frame on the supporting component abuts against the two sides of the arch, the inner side and the outer side of the sole can be effectively balanced, imbalance caused by uneven stress of the inner side and the outer side is prevented, the sole is better stabilized, and the torsion resistance is achieved; the weight can be effectively reduced, enough arch support can be provided, sweat accumulation can be reduced through the holes of the lattice structure, the wearing comfort is improved, and the practicability is improved.

To provide a lattice structure that enables weight reduction while having sufficient curved surface formability.SOLUTION: A lattice structure made of a material containing reinforcing fibers has a rectangular shape when viewed from a side face, and has a plurality of notches extending substantially parallel to a short side thereof in a comb-tooth manner, and has a plurality of comb-tooth-shaped plate-like members opened at one side or both sides of a long side by the notches, wherein the plurality of plate-like members are fitted to each other at the notches to cross each other to form fitting portions, and the plurality of plate-like members have, among all adjacent fitting portions, at least between some of the fitting portions, a region curved with the same or substantially the same curvature across a short side direction, or a region bent at the same or substantially the same angle across the short side direction.SELECTED DRAWING: Figure 3

An aerospace panel includes a first skin, a second skin spaced apart from the first skin, and a first truss structure connecting the first skin to the second skin. The first truss structure includes a plurality of truss members. Each truss member is integral with the first skin and the second skin, such that the first skin, the second skin, and the first truss structure collectively form a single monolithic joint-free structure. At least one of the skins also includes at least one lattice region that includes a lattice grid and an array of openings.

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.

An electronic device includes: a display, glass configured to cover the display, and a metal plate on an opposite side of the glass with respect to the display and configured to support the display, in which the metal plate may include a plurality of slits formed through the metal plate, a plurality of main bridges defined by the plurality of slits, the plurality of main bridges being a portion of the metal plate between adjacent slits of the plurality of slits and formed in a first direction, and a plurality of connection bridges defined by the plurality of slits and connected to the plurality of main bridges, the plurality of connection bridges being another portion of the metal plate between adjacent slits of the plurality of slits and formed in a second direction. The plurality of connection bridges may have a thickness less a thickness of a metal plate body.

According to an embodiment, an electronic device may comprise: a first housing; a second housing supporting the first housing to be slidable; a display; a lattice plate connected to the display; a plurality of first support bars connected to an exposed region of the display; a plurality of second support bars connected to a non-exposed region of the display; a first welding part connecting the plurality of first support bars and the lattice plate; and an adhesion layer connecting the plurality of second support bars and the lattice plate.

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.