31 results about "Hexahedron" patented technology

The utility model discloses a kind of splicing ornaments, belong to ornament technical field, including multiple splicing modules, the splicing module is triangle or square, its edge is equipped with zip structure, and splicing module can be connected by the zip structure between it. Through different combination mode, the splicing module can be assembled to form the ornament of tetrahedron structure, hexahedron structure or four pyramid structure. The splicing module is equipped with hole, for wearing external chain to realize the function of suspension. The utility model connects between splicing module by zip structure, with the characteristics of convenient splicing, combination form is various.

The application aims to provide a stress-based 3D printing continuity path planning method. The application obtains a to-be-printed model, discretizes the to-be-printed model into a hexahedral grid, the side length of the grid is twice the printing path width, and the height is the pre-printed layer thickness, and the principal stress field is obtained by using finite element analysis. Since the path is generated on a two-dimensional quadrilateral grid, the principal stress direction field is projected onto the two-dimensional domain. For the stress value of the unit close to zero, the stress direction is arbitrary, a method of uniform principal stress direction field is proposed, the stress line is extracted from the principal stress direction field, a plurality of connection rules are adopted, the isolated points are eliminated, and the continuity is optimized. Finally, each stress line is offset to generate a path with a closed loop, and different paths are connected to generate a globally continuous path. In addition, the extrusion rate is adjusted adaptively according to the path direction to alleviate the overfilling problem caused by grid discretization. The model printed by the method has strong mechanical properties under the premise of guaranteeing the surface quality and the curved surface accuracy.

The application discloses a kind of hexahedron measured piece detection method, device, system, equipment and storage medium.Method includes: obtaining the image corresponding to six faces of hexahedron measured piece, six faces include front, back and four sides;Front corresponding image and back corresponding image both include the image obtained by photographing under backlight respectively and the image obtained by photographing under annular light source;3D image of hexahedron measured piece is obtained by 3D camera;According to the detection result whether six face corresponding image of hexahedron measured piece exists defect, according to 3D image, determine the detection result whether the height of hexahedron measured piece is qualified.The technical scheme can automatically complete the defect detection of hexahedron measured piece, improve detection efficiency and accuracy.

The present disclosure relates to a kind of missile-borne phased array antenna near-field phase matching device and its use method.The device includes: phase matching box, including box, phase matching array surface, fixing frame and wave-absorbing embryo, box is the hexahedron of by main panel, back panel, upper panel, lower panel and two side panels;Clamp is set on the outer wall of main panel;Heat dissipation mechanism includes the first radiator and second radiator of movable setting on the outer wall of main panel;Adjustable lock buckle component is connected with the first radiator and second radiator.The present disclosure realizes the constraint of missile-borne antenna circumferential degree of freedom by positioning block, utilizes clamp and the shell back cover of antenna, realizes the constraint of missile-borne antenna axial degree of freedom, to realize the quick positioning of missile-borne antenna clamping and installation.The first radiator and second radiator are tightly adhered to the surface of the shell of missile-borne antenna by adjustable lock buckle, to realize the increase of heat dissipation area, to realize the heat dissipation of missile-borne antenna.

The utility model relates to a kind of chemical liquid component detection devices in the field of chemical liquid phase detection equipment, including ultrasonic detector, intelligent sight glass detector and multi-way valve;The multi-way valve includes the shell of regular hexahedron structure and the spherical inner cavity in the shell, liquid inlet and liquid outlet are respectively arranged on the upper and lower surface of the shell, the ultrasonic detector and the intelligent sight glass detector are installed with the structure of the included angle 90 ° in the side of the shell and with the spherical inner cavity being communicated. The utility model discloses chemical liquid component detection device, by integrating the liquid detection device of two different working principles of ultrasonic detector and intelligent sight glass detector on the multi-way valve of regular cubic structure, the detection precision of chemical liquid component can be significantly improved, while the deficiency of single detection instrument equipment is solved, and the application scenario is expanded.

An imaging display device and method. Imaging information corresponding to speech information can be obtained by means of speech, and screen imaging is then controlled on the basis of the imaging information; moreover, an imaging display device is provided to refract imaging content by means of a beam-splitting film after the screen imaging, so as to display an image on a regular hexahedron for viewing. Since a formed image is generated on the basis of the speech of a user, the current requirements of the user can be met, and imaging content is enriched.

The utility model provides a kind of installation structure of thermocouple, including junction box, the junction box bottom is equipped with protective sleeve, the protective sleeve is equipped with hexahedron, the hollow outer thread column of the hexahedron lower surface is equipped with, the protective sleeve is equipped on the outer thread column, the side of the hexahedron away from outer thread column is equipped with connecting ring, the connecting ring is equipped on the protective sleeve, the connecting ring is connected with junction box by connecting piece, the connecting ring is connected with hexahedron by multiple screws, the utility model has the beneficial effects as follows: the damaged position of thread is replaced separately, without replacing entire thermocouple when thread is damaged, reduce maintenance cost.

This invention relates to a time-domain electromagnetic simulation method based on Tree-Cotree decomposition and a hybrid DG-FE / SE domain decomposition. The method includes: dividing the computational domain into a tetrahedral finite element subdomain and a hexahedral spectral element subdomain according to geometric dimensions and electromagnetic properties; constructing a minimum spanning tree and cotree based on mesh edges to apply Gaussian divergence constraints; discretizing both the finite element and spectral element regions using scalar and vector basis functions to obtain Galerkin weak solutions; uniformly processing the interface between the finite element and spectral element subdomains using a topology identification-polygon decomposition-Gaussian integration method, and combining this with upwind flux to achieve continuous field transfer; assembling the spatial discretization matrix of the Galerkin weak solutions, and completing time propagation using an explicit fourth-order Runge-Kutta scheme. Compared with existing technologies, this invention systematically eliminates the low-frequency collapse problem, ensures the non-singularity of the system matrix, and guarantees solution accuracy and efficiency.

The present application relates to a kind of based on silt thickness calculation open channel flow accurate measurement device and method, comprising: rectangular hexahedron frame is placed in the water bottom of open channel, the upper and lower surface of rectangular hexahedron frame is closed by top plate and bottom plate, left and right surface is closed by side plate, front and back surface is open, form water flow channel, flow velocity sensor group that can simultaneously measure different water depth layer is set on side plate, water level height sensor and data acquisition processor are set on top plate, bottom plate is flush with the bottom of open channel and is equipped with soil force meter;Data acquisition processor is electrically connected with flow velocity sensor group, water level height sensor, soil force meter.This application can accurately monitor the silt thickness of the bottom of open channel and correct flow measurement in real time, so as to still provide reliable flow data in the case of channel siltation.This has important significance for long-term operation of open channel flow monitoring, and can be widely applied in water conservancy engineering and environmental monitoring field requiring high-precision measurement.

The application provides a card reporter applied to a poker game. The card reporter is a hexahedron structure, and six surfaces of the card reporter are respectively marked with numbers "5, 6, 7, 8, 9 and 10" for representing the remaining card numbers of players. The players manually operate the card reporter to update and accurately report the remaining card numbers in real time, and the card reporting rule of the poker game is met. The device can be recycled, and effectively avoids card reporting errors, and improves the accuracy and fairness of the game. The innovation points are manual card reporting and real-time updating functions, and the information transmission efficiency and accuracy in the game process are optimized.

This application belongs to the technical field of synthetic diamond manufacturing equipment, specifically disclosing a pressurizing device for a six-sided press, comprising: a cage, the interior of which is provided with a regular hexahedral pressure chamber, each with a conical positioning countersunk hole on its inner wall; eight secondary anvils forming a regular hexahedral composite, the outer wall of which is provided with a frustum corresponding to the conical positioning countersunk holes; and an octahedral pressure chamber inside the regular hexahedral composite. The conical positioning countersunk holes and the conical surfaces of the frustums cooperate to uniformly decompose the concentrated load applied by the external pressurizing hammer into normal clamping force and radial constraint force. This ensures that under ultra-high pressure conditions of tens of GPa, the secondary anvil can only move centripetally along its axial direction, and cannot undergo radial slippage or torsion. This reduces the risk of stress concentration and anvil breakage caused by anvil surface misalignment, ensuring the geometric stability and reusability of the secondary pressurizing device under extreme conditions.

To provide a battery that can prevent a gap from being generated at a joined portion to prevent structural reliability from being reduced, the battery includes: a battery element that is a hexahedron as a whole; and a package including a laminate sheet and side face members, the battery element being sealed in the package, the laminate sheet covering four faces of the hexahedron of the battery element, having at least one joined portion of end parts thereof to form a tube, the side face members facing other two faces of the hexahedron of the battery element, and being arranged to cover openings of the tube of the laminate sheet, wherein each of the side face members is a hexahedron as a whole, and has a protrusion at a portion thereof which is located at the joined portion of the laminate sheet.

This invention belongs to the field of digital deformation technology for ship and marine engineering structures, specifically relating to a method, program, device, and storage medium for body-fitting free deformation of ship and marine structures based on a general convex hexahedron. This invention improves upon traditional free deformation methods by replacing the cuboid control frame with a general convex hexahedron control frame. It innovatively combines coplanarity / convexity checks with trilinear interpolation to achieve the construction and verification of the convex hexahedron control frame and the generation of control points. It combines intelligent optimization methods with Bernstein basis functions and proposes a two-step screening criterion to achieve efficient parametric expression and deformation of three-dimensional geometry. This invention can maintain accurate deformation of complex three-dimensional geometry even when the deformation control frame fits the bow or stern plate, areas with large curvature changes and high tilt angles, and can also reduce the space of design variables to achieve efficient numerical optimization design.

The application discloses a kind of based on industrial CT sequence image direct generation hexahedral grid method, comprising the following steps: 1) reading the CT sequence image of workpiece;2) the CT sequence image is preprocessed, to obtain target area with workpiece information;3) based on octree, target area is divided into several hexahedral grid;4) extracting core grid and its outer surface in hexahedral grid;5) fitting is carried out to core grid, and boundary grid is obtained;6) boundary grid unit is optimized in quality, and then the hexahedral grid corresponding to workpiece is obtained.This method uses the CT sequence image of workpiece as input, first image pre-processing, secondly, using octree divides grid, extracts core grid and outer surface, then boundary fitting is carried out, finally, grid optimization is carried out, realizes that CT image directly generates hexahedral grid, does not need third party commercial software to reconstruct the CAD model of workpiece, can improve automation degree, efficiency is promoted.

The application relates to an emergency rescue device, and discloses a rescue air cushion module and a combined device thereof. The rescue air cushion module comprises a square air bag, the square air bag is provided with an inflation opening, the square air bag is a hexahedron, the four side surfaces of the square air bag are provided with hook-and-loop magic tapes, and the rescue air cushion module is detachably connected with another rescue air cushion module through the hook-and-loop magic tapes. The combined device comprises a plurality of rescue air cushion modules, among the plurality of rescue air cushion modules, adjacent rescue air cushion modules are detachably connected through the hook-and-loop magic tapes on the square air bags. According to the application, the rescue air cushion is designed as an independent square air bag module, the side surfaces are provided with hook-and-loop magic tapes to realize detachable connection. During rescue, the shape and size can be flexibly spliced and adjusted according to narrow lanes, irregular terrains and the like, the complex terrain can be attached, the coverage range is enlarged, and the rescue success rate is improved. The modular design facilitates transportation and replacement, reduces the cost, and enhances the practicability and economy.

The present application relates to the field of cold rolling technology, in particular to a rolling force prediction method of finite element enhancement and PSO optimized PINN; the method comprises the following steps: collecting cold rolling site process parameters and rolling force data, and constructing a finite element simulation model of a six-high cold rolling mill; simulating a multi-parameter coupled rolling process through eight-node hexahedral elements and transition mesh division to obtain simulation data; fusing the site measured data and the finite element simulation data to form an enhanced data set; constructing a physical information neural network framework based on an artificial neural network, introducing process-sensitive physical features and Hill formula as physical constraint terms, and weighting data loss and physical loss to form a total loss; performing global optimization by using a particle swarm optimization algorithm; standardizing the input features and dividing the training set, the validation set and the test set, and outputting high-precision rolling force prediction results after completing the model training. The present application realizes high-precision physical consistent rolling force prediction.

This invention relates to the field of geophysical exploration technology, specifically to a high-precision three-dimensional forward modeling method for airborne electromagnetic spectral elements considering induced polarization effects. Based on the Cole-Cole model, a complex conductivity expression considering induced polarization effects is established, and the frequency domain Helmholtz equation is introduced to construct the corresponding governing equations. A regular hexahedral mesh is generated, and reference domain vector basis functions are constructed using the Gauss-Lobatto-Legendre orthogonal polynomial method according to the spectral element method. The mapping relationship between these functions and physical mesh elements is established. The Galerkin weighted residual method is applied to discretize the governing equations into element system matrices, which are then assembled to form the overall system matrix and the corresponding linear equation set. A direct solver is used to obtain the frequency domain three-dimensional electromagnetic response, and the time domain three-dimensional forward modeling result of the computational region is obtained through Hankel transformation. This invention achieves rapid and high-precision three-dimensional forward modeling simulation of complex geological models containing induced polarization effects.

The present application relates to a kind of time-varying chatter prediction methods in thin-walled part milling process, comprising: at initial time, un-milled thin-walled part is divided into multiple units, each unit is the same eight-node hexahedron of length-width-height;At the t time, the unit node information of each unit in the machined, to-be-cut and target machining forming part of thin-walled part is obtained, and the stiffness matrix of each unit is obtained according to the unit node information of each unit and the unit stiffness matrix of eight-node hexahedron;The stiffness matrix of each unit is assembled, and the time-varying stiffness matrix of thin-walled part is obtained;And the time-varying stiffness matrix of thin-walled part is corrected;Cutting force model in thin-walled part milling process is constructed;According to cutting force model and the time-varying deformation of corrected time-varying stiffness matrix, the time-varying deformation of thin-walled part is calculated;Finally, the time-varying chatter of thin-walled part is predicted according to time-varying deformation.This method can significantly improve the efficiency and accuracy of thin-walled part machining stability prediction.

The application belongs to the technical field of electric data processing, and particularly relates to a fast modeling method and module for a finite element model of a sandwich structure, comprising the following steps: obtaining a three-dimensional model with hexahedral element composition by stretching a two-dimensional grid surface, and stretching each rectangular grid of the two-dimensional grid surface to obtain a hexahedral element; obtaining a boundary node set of the two-dimensional grid surface, and taking a first boundary node in sequence in the boundary node set as a search node; searching out a hexahedral element corresponding to the search node that meets a preset direction condition, when the searched hexahedral element is two, judging the hexahedral element that meets the preset direction condition, and performing a first type operation on the hexahedral element, when the searched hexahedral element is one, performing a second type operation on the hexahedral element; deleting the search node in the boundary node set, and taking a next boundary node in sequence in the boundary node set as the search node until the boundary node set is empty; and outputting a three-dimensional model after the operation.

This invention provides an integrated topology optimization method for materials and structures based on ordered MFSE interpolation, belonging to the field of integrated material and structure design for high-performance launch vehicles. The optimization method mainly comprises four parts: generation of arbitrary structure regular hexahedral meshes, macroscopic ordered material field series expansion multi-material interpolation method, microscopic correlation function-driven connectivity method, and multi-scale concurrent topology optimization. This invention does not introduce additional constraints during the optimization process, enabling connectivity between microstructures while significantly reducing the number of design variables, thus greatly improving the efficiency of topology optimization. This invention is expected to be applied to the integrated topology optimization design of materials and structures for small aerospace components and can be extended to high-complexity problems widely faced in the aerospace field, such as thermo-structure coupling and impact energy absorption.

A battery of the present application has a hexahedron-shaped electrode laminate, a can that encloses the electrode laminate, and a heat spreader that contacts at least four faces of the can and the electrode laminate. The heat spreader is composed of a heat spread sheet.

The application belongs to the technical field of finite element numerical analysis, and particularly relates to a modular hexahedral mesh model construction method for a taper thread structure of an extruding machine, which firstly acquires characteristic parameters of a target taper thread, and then processes the parameters by using a commercial finite element software: an original mesh entity of a single pitch is constructed by drawing and combining a cylindrical ring mesh and a transition mesh; after being scaled by an equal ratio to match a target size, an overall structure original mesh covering a full length of the thread is formed by arraying and merging in an axial direction; based on an accurate geometric expression of the constructed taper thread profile, node coordinate deformation of the above mesh is driven by a linear interpolation algorithm, so that it accurately matches a target geometric shape, thereby automatically generating high-quality hexahedral mesh models of inner and outer taper threads. The method avoids tedious work of manual mesh division of a complex taper thread structure, and significantly improves the efficiency and model accuracy of finite element analysis of a taper thread connecting structure of a perforating system of a heavy extruding machine.

The application discloses a kind of topological optimization design method and device of target engineering structure. The method comprises: obtaining the three-dimensional geometric model of target engineering structure, dividing optimization design domain and non-design domain, setting load constraint parameter, material performance parameter, volume constraint upper limit and structure minimum compliance optimization target;Complete hexahedral patch grid discrete and isoparametric coordinate mapping construction, obtain bidirectional smooth derivable mapping function by P-type three-period minimal surface cell implicit function fitting;With patch grid node density as design variable, obtain unit pseudo-density through multi-stage filtering, construct macroscopic finite element balance equation through homogenization calculation, obtain convergence design variable through iterative optimization, finally complete implicit function field construction and manufacturability post-processing, and obtain optimized structure model. The application can realize the patchy porous topological optimization of complex structure, ensure the stability of topology and iterative convergence, and improve the specific stiffness of structure and the adaptability of additive manufacturing.

The application provides an auxiliary device for door and window processing, and belongs to the technical field of door and window processing. The technical scheme is that a workbench is provided with a polishing mechanism. The polishing mechanism comprises a support plate arranged on the lower side of the workbench, a rotating shaft one arranged on the support plate, a vertical hexahedron arranged on the rotating shaft one, and edge polishing assemblies one, two and three evenly arranged on the peripheral side of the hexahedron. The application has the beneficial effects that labor is saved for manual polishing with a file, and the polishing process is simplified by using a polishing machine. The application creatively uses a rotatable hexahedron structure, and the edge polishing assemblies one, two and three are respectively arranged on the outer side of the hexahedron. The hexahedron is rotated to polish different parts of the sliding rail, space is saved, efficiency is improved, and the design of the clamping mechanism makes the sliding rail conveniently align with the polishing mechanism.

The application belongs to the technical field of additive manufacturing, and discloses a simulation method and system for stress deformation of laser powder bed fusion based on a particle-spring model. The method comprises the following steps: S1, dividing a three-dimensional model of a substrate and a to-be-formed part into a plurality of hexahedral grid models, and equivalently coupling each hexahedral grid model into a three-type spring system; S2, under a temperature field at a current time, calculating forces borne by each vertex of the hexahedron and updating coordinates of each vertex; S3, judging whether a displacement increment of each vertex relative to a last time is greater than a preset threshold value, and if yes, returning to step S2 until the condition is met, otherwise, outputting current coordinates of each vertex and calculating stress and strain; and S4, repeating steps S2-S3 until coordinates of each vertex under temperature fields at all times and stress and strain are obtained. Through the application, problems such as low calculation efficiency, poor convergence, and complex model in LPBF forming stress deformation simulation are solved.

This invention provides buoyancy blocks for artificial islands that minimize the subsidence of artificial islands and the ground supporting them, as well as a construction method for artificial islands using these buoyancy blocks. [Solution] A floating structure 2 is formed by arranging multiple artificial islands 1 in appropriate locations, and the artificial island buoyancy block 3 is equipped with a buoyancy material 6 that generates buoyancy. The artificial island buoyancy block 3 comprises a concrete hollow block 4 with a hollow section 5 formed inside the block body which is made up of a hexahedron, and a buoyancy material 6 which is installed in the hollow section 5 of the hollow block 4 and has a specific gravity less than that of water. The volume of the hollow section 5 of the hollow block 4 is 60% or more of the total volume, and the volume of the buoyancy material 6 provided in the hollow section 5 is 60% or more.

This application discloses a method, apparatus, device, and medium for generating hexahedral dominant meshes for simulating mechanical structural components of aircraft. It relates to the field of mesh generation technology, including: subdividing a quadrilateral dominant mesh to obtain a triangular mesh; adding the vertices of the surface triangular pieces of the tetrahedral mesh generated from the triangular mesh to a preset queue, and generating target points by traversing the frame of the first vertex in the queue in each direction; querying other position points within the target range, and determining hexahedral edge pairs based on the distance relationship between the target point and other position points; generating a lattice-like tetrahedral mesh based on the triangular mesh and the position field, and determining hexahedral element edges based on the hexahedral edge pairs and the lattice-like tetrahedral mesh; determining right-angled triangular faces based on the selected hexahedral element edges, determining tetrahedral combinations through the right-angled triangular faces, and merging the tetrahedral combinations to generate a hexahedral dominant mesh for simulating mechanical structural components of aircraft. This method rapidly generates high-percentage hexahedral meshes.

The application provides a gravity anomaly underwater continuation method and device based on an upright hexahedron section, a track gravity anomaly of a submarine is read by a boat-borne gravimeter; an upward continuation calculation surface elevation is obtained, the track gravity anomaly is upwardly continued to the calculation surface to obtain a continuation gravity anomaly; a seawater gravity anomaly is calculated by constructing an upright hexahedron model; an upward continuation gravity correction value is calculated according to the continuation gravity anomaly and the seawater gravity anomaly; a standard deviation of a difference value between a sea surface gravity anomaly and the upward continuation gravity correction value is calculated; if the standard deviation is less than or equal to a continuation threshold value, the upward continuation gravity correction value is determined as the continuation gravity value; real-time coordinates of the submarine are obtained according to the track gravity anomaly and the continuation gravity value. The track gravity anomaly and the sea surface gravity anomaly are matched on the same observation surface, the positioning accuracy of gravity matching navigation is enhanced, the continuation result is more accurate, and the matching speed is faster.

The application provides a method and system for fusing irregular geological anomaly bodies with three-dimensional geology, which utilizes half-edge rules to perform surface rendering on a predicted body predicted by a three-dimensional point cloud; utilizes an octree to construct a three-dimensional geological hexahedron grid; obtains a directional bounding box of a three-dimensional surface formed by surface rendering and acquires a hexahedron inside the directional bounding box; judges whether all hexahedrons intersect with the three-dimensional surface, and determines all intersected hexahedrons; performs a polyhedral Boolean operation on all intersected hexahedrons and the three-dimensional surface; and fuses the polyhedral Boolean operation result into the three-dimensional geological hexahedron grid. The application can quickly fuse advanced detection results into front three-dimensional geology in tunnel excavation construction, and more intuitively display the display fidelity of geological anomaly bodies in front strata.