19 results about "Slice method" patented technology

The invention provides a gear crack rigidity calculation and system vibration coupling solution method considering slice coupling, which comprises the following steps of: calculating bending rigidity, shearing rigidity and axial compression rigidity of slice gear teeth by adopting a slicing method based on gear tooth number, modulus and gear pair dynamic meshing force to obtain gear tooth rigidity of the slice gear teeth; according to whether the gear has cracks or not, slice coupling rigidities in the healthy state and the crack state of the gear are calculated in combination with the gear tooth rigidities of slice gear teeth; calculating the crack-containing gear time-varying meshing stiffness of a single gear pair by combining the contact stiffness and the matrix stiffness of the gear; based on the outer diameter, the inner diameter and the number of rolling bodies of the ball bearing, the bearing supporting force is calculated by combining the dynamic load borne by the bearing; and according to the time-varying meshing stiffness of the crack-containing gear of the single gear pair and the bearing supporting force, a gear-bearing-coupling system kinetic equation is constructed, and the vibration response of the gear-bearing-coupling system is solved. The method can provide reference for early fault diagnosis of the wind turbine generator gearbox.

The invention relates to the technical field of numerical simulation and data processing, in particular to slope stability multi-layer synchronous experiment equipment based on a splitting method and a control system. According to the invention, soil pressure transmission among different slippery mass strips is simulated through the multi-layer synchronous experimental equipment. Through the cooperation of the stress sensor matrix and the oil hydraulic cylinder matrix, the soil pressure of each sliding mass strip block can be transmitted to the next sliding mass strip block in real time, so that the evolution process of the soil pressure in the whole slope system is accurately simulated. The time sequence change of the soil pressure is recorded through the stress sensor, and mechanical modeling is carried out according to the data, so that the dynamic transmission of the soil pressure among different slippery mass strips is realized, and the defect that a soil pressure field is difficult to reproduce in a traditional experimental method is overcome; through the matrix positioning and loss compensation module, the problem of matrix position dislocation of the stress sensors and the oil hydraulic cylinders is solved, so that the positions of the stress sensors and the oil hydraulic cylinders of different sliding mass strip blocks in an experiment can be accurately aligned, and the precision of force field transmission is ensured.

The invention discloses an iterative calculation method for time-varying meshing stiffness of a face gear pair. The iterative calculation method is used for accurately calculating a load distribution coefficient and the time-varying meshing stiffness in the meshing process of the face gear pair. The face gear pair is sliced in the radial direction and the axial direction through a slicing method, the slices are calculated and coupled through a potential energy method, the load distribution coefficient is subjected to iterative correction through the time-varying meshing rigidity obtained through calculation in the iterative calculation process, and therefore accurate solving of the time-varying meshing rigidity of the face gear pair is achieved. According to the method, the calculation efficiency and reliability are improved, theoretical support is provided for face gear pair configuration design optimization, and the international related technical blank is filled.

The invention discloses an automatic resin slicing method without tabletting, and relates to the technical field of tissue slicing. The resin slicing method comprises the steps of resin embedding block preparation, block trimming, slicing, expanded sheet pretreatment, sheet expansion, sheet fishing, sheet drying, dyeing and sheet sealing, and specifically comprises the steps that S3, slicing is conducted, sheet pressing is not conducted, and a slicing machine is used for rapidly cutting a large number of slices with the needed thickness; and collecting the seriously curled slices. The method has the advantages that tabletting is not needed during slicing, so that the operation difficulty is greatly reduced; compared with a traditional manual slicing method, the method has the advantages that the slicing speed is remarkably increased, a large number of high-quality slices can be obtained within 5 minutes, and it is extremely difficult to obtain a high-quality slice through a common tabletting type slicing method, and operation needs to be carried out.

The present invention discloses a method and device for analyzing the dynamic state of a suspended submarine cable based on a slicing method. The method comprises: constructing a geometric model and a calculation model for a target submarine cable; performing finite element meshing on the target submarine cable and the surrounding water body according to the geometric model and the calculation model, and dividing the flow field into finite elements by the slicing method; the fluid and the solid are solved by the finite element method, the former constructs a flow field simulation by solving the NS control equation, and the latter constructs a solid simulation model by solving the solid motion equation; the slicing method is used to calculate the flow field simulation model, and the immersed boundary method is used to perform fluid-solid coupling processing on the flow field simulation model and the submarine cable body motion simulation model to generate a dynamic response model of the suspended submarine cable; and the dynamic response characteristics of the suspended submarine cable are analyzed according to the dynamic response model of the suspended submarine cable. The present invention performs approximate calculations by the slicing method, saves calculation amount, and quickly realizes the numerical simulation of vortex-induced vibration of the suspended submarine cable.

The application discloses a kind of video intelligent slice method based on multi-modal information fusion and semantic constraint, it is related to video content analysis and intelligent editing technical field, it is characterized in that it proposes semantic priority audiovisual collaborative slice scheme, obtains shot interval by shot boundary detection, constructs voice interval and effective word information by voice recognition, adopts voice interval as semantic mask to remove visual cut point in the process of voice expression, and based on fragment length and effective word, content density determination is carried out to long fragment, and further adopts visual re-cutting, audio energy driving and uniform cutting Secondary slicing strategy of division, the method provided by the application solves the problem of semantic fragmentation and content perception loss in the prior art, can obtain video fragment with complete semantics, high content density and appropriate length, and is suitable for various application scenarios such as automatic editing, short video generation and video content retrieval.

The invention discloses an efficient slicing method and device based on a virtual mosaic technology. The method comprises the following steps: S1, preparing data; s2, metadata processing; s3, constructing a tile service; and S4, downloading the tiles. The device comprises the following modules: a metadata processing module, which is used for analyzing tiff file metadata and generating a mergeJSON file; the tile service module is used for calculating a quadkey integer code according to hierarchy and row and column number parameters, and generating a tile through a tiff file under the code; and the tile downloading module is used for converting the geographic coordinate range into a tile request address, and downloading and storing tile data in batches. According to the method, the query key character strings do not need to be checked one by one, and the slicing efficiency can be greatly improved.

The invention relates to the field of ship form optimization, in particular to a ship form comprehensive optimization method, which comprises the following steps: S1, setting constraint conditions; s2, designing a deformation control point and a deformation amplitude range thereof; s3, constructing a genetic algorithm and setting genetic algorithm parameters; s4, calculating still water resistance of the individuals and calculating fitness; s5, judging whether the maximum algebra of the genetic algorithm is reached or not; s6, selecting and copying individuals with high fitness; s7, carrying out crossover and variation on the individuals with high fitness, and returning to the step S4; s8, ending the genetic algorithm, and outputting no less than two still water resistance optimization schemes; s9, calculating the wave increase resistance of the still water resistance optimization scheme by using a slicing method; and S10, selecting a scheme which most meets the requirements of a ship owner as an optimal scheme, and calculating a corresponding optimal ship type through an FFD method. According to the method, the rapidity and seakeeping of the optimized ship are considered, and the calculation amount is reduced.

The application discloses a network slice method based on data clustering, and comprises the following steps: firstly, a plurality of user data are acquired, the characteristics in the user data are normalized, and corresponding threshold values are set; it is judged whether the characteristic values are greater than the corresponding threshold values; if yes, 1 is assigned; if no, 0 is assigned; secondly, the characteristic frequent occurrence times of each characteristic are defined as the total times of the characteristic values being 1 in single user data, and the characteristic frequent occurrence times of each characteristic are obtained by scanning the user data; then, the minimum characteristic frequent occurrence time is set, the characteristics with the characteristic frequent occurrence times less than the minimum characteristic frequent occurrence time are deleted, and the remaining characteristics are arranged according to the characteristic frequent occurrence times; a tree diagram is constructed according to the arranged characteristics, frequent item sets are found in the tree diagram, and a normalized hypergraph is made; finally, the strong correlation between the characteristics is judged by using the obtained hypergraph, and a network slice resource allocation scheme is made. The application can reasonably, efficiently and fairly allocate the network slice resources.

This invention relates to the field of ship hull optimization, specifically to a comprehensive ship hull optimization method, comprising: S1, setting constraints; S2, designing deformation control points and their deformation ranges; S3, constructing a genetic algorithm and setting its parameters; S4, calculating the hydrostatic resistance and fitness of individuals; S5, determining whether the maximum number of generations of the genetic algorithm has been reached; S6, selecting and replicating individuals with high fitness; S7, performing crossover and mutation on individuals with high fitness, and returning to S4; S8, terminating the genetic algorithm and outputting at least two hydrostatic resistance optimization schemes; S9, using the slicing method to calculate the wave resistance increase of the hydrostatic resistance optimization schemes; S10, selecting the scheme that best meets the shipowner's needs as the optimal scheme, and calculating the corresponding optimal ship hull hull using the FFD method. This invention achieves a balance between optimizing the speed and seakeeping of ships while reducing computational load.

The present invention provides a terrain slicing method and system based on irregular triangulated mesh partitioning. The method comprises: receiving a terrain file to be sliced; based on a predetermined target projection mode, calculating the total number of tiles and tile indexes, and creating multiple tile subtasks; executing the multiple tile subtasks in parallel, partitioning the terrain file, and generating multiple triangulated mesh tiles; and generating the meta information of the triangulated mesh tiles according to the tile indexes. The present invention combines irregular triangulated mesh partitioning with map slicing, greatly reducing the tile storage space and the amount of data transmitted by tile data, and can support faster terrain rendering and smaller rendering memory consumption.

The invention relates to the technical field of material microstructure three-dimensional characterization, and discloses a material microstructure three-dimensional reconstruction method, which comprises the following steps: acquiring multi-source data of multiple layers of material slices of a to-be-reconstructed material; the multi-source data corresponding to each layer of material slice comprises three-dimensional shape information and microscopic structure characteristic information of the material slice; for each layer of material slice, based on the multi-source data, constructing a three-dimensional point cloud picture corresponding to the material slice, and based on grain boundary feature constraints, performing interpolation processing on missing value pixel points in the three-dimensional point cloud picture; and generating a three-dimensional reconstruction image corresponding to the to-be-reconstructed material based on the three-dimensional point cloud atlas corresponding to each material slice. According to the method, the problem of reconstruction errors caused by neglecting the characteristics of the non-flat slices prepared by the continuous slicing method in the traditional three-dimensional reconstruction technology is effectively solved, the three-dimensional reconstruction precision of the non-flat continuous slices is remarkably improved, and a high-precision solution is provided for three-dimensional crystallography representation of metal materials.

The invention provides a slicing device for cable sampling and a slicing method thereof, and relates to the technical field of cable sampling, the slicing device for cable sampling comprises an operation table, a movable part, a limiting part and an adjusting part, the adjusting part is used for adjusting the length of a cable in the movable part extending out of the movable part; the fixed part is arranged on the operation table, and the fixed part is used for fixing the cable in the movable part; the cutting part is arranged on the operation table, and the cutting part is used for performing fixed-length cutting on the part, extending out of the movable part, of the cable; the material guiding part is arranged on the operation table, the material guiding part is matched with the adjusting part to enable the cable slices on the limiting part to enter the material guiding part, when the device is used, by arranging a turnover limiting plate, a sleeve, a sealing cap and a first spring, the cable in the sleeve can stretch out of the sleeve by the same length every time, and therefore the cable slices can be cut out of the sleeve; therefore, the uniformity of the cable slice thickness is ensured, and the accuracy and effectiveness of detection are improved.

The present invention discloses a rapid slicing device and a slicing method for ham processing, which belongs to the field of ham sausage slicing, and comprises an operating table, on which there is a mounting plane; a mounting table, which is detachably arranged on the mounting plane, on which there is a detachably mounted feed hopper; and a pusher positioning member, which is detachably mounted on the mounting table. The rapid slicing device and the slicing method for ham processing of the present invention, through the arranged slicing member, the staff turns on the second drive motor, which can drive the first drive wheel to rotate, the first drive wheel drives the second belt to drive the second drive wheel and the oil injection cylinder to rotate, and when the oil injection cylinder rotates, it can drive the core rod to rotate, so as to drive the cutter and the oil injection cotton plate to rotate, and when the cutter cuts into the ham to be sliced, the slicing operation of the ham to be sliced ​​can be completed, and when the oil injection cotton plate contacts the ham to be sliced, the oiling operation of the ham to be sliced ​​can be completed.

A bit-slicing method comprises: dividing input data into predetermined bit units to obtain a plurality of intermediate representation slice data; and sequentially obtaining higher-order slice data by adding, to a higher-order intermediate representation slice data, a sign bit that is a most significant bit of lower-order slice data obtained in a previous step and a carry bit generated in a process of obtaining the lower-order slice data.

The present invention discloses a method for constructing an analysis model of the seismic stability of an unsaturated soil slope by the horizontal slice method. Based on the pseudo-dynamic assumption, the present invention proposes an improved horizontal slice method to evaluate the seismic response characteristics of an unsaturated soil slope. This method is used to calculate the external power done by the gravity of the unsaturated soil, the energy dissipation of the capillary cohesion and the anchoring force of the prestressed anchor cable, construct an energy balance equation, and obtain a semi-analytical numerical expression of the safety factor of the soil slope according to the principle of increased unit weight. The minimum safety factor of the slope and the corresponding critical slip surface are searched based on the enumeration method. The analysis model constructed by the present invention combines the advantages of the limit analysis analytical method and the limit analysis finite element method, effectively combines the unsaturated soil strength theory and the limit analysis method, can reasonably explain the action mechanism of the slope suction effect, and has important academic value and practical significance for guiding slope design, construction and reinforcement under complex conditions.

The present application discloses a tissue slicer slicing method, device and system. The tissue slicer slicing method comprises: obtaining the relative position relationship between the slicer's knife holder and the tissue block to be sliced; moving the slicer's knife holder to the target position according to the relative position relationship; setting initial cutting thickness information; cutting the tissue block to be sliced ​​at least twice according to the initial cutting thickness information, wherein the position of the slicing separation needle is obtained by image recognition after each cutting of the tissue block to be sliced; judging whether the position of the slicing separation needle needs to be adjusted according to the position of the slicing separation needle and the position of the uncut surface of the tissue block to be sliced. The tissue slicer slicing method of the present application performs automated cutting processing by image recognition and by presetting the cutting thickness, thereby improving the drawbacks of the existing slicing technology of the purely manual operation of the slicer and realizing intelligent cutting of the slicer.

The present invention discloses a method for measuring the volume of unordered point clouds based on voxelization and filling algorithms, belonging to the technical field of point cloud mapping, including: determining algorithm parameters; inputting point cloud data and performing direct filtering slicing according to the determined slicing operation parameters; only considering the non-slicing coordinate direction and performing two-dimensional voxelization according to the voxelization resolution; constructing a two-dimensional voxel matrix; using the X-scan line filling algorithm to fill the two-dimensional voxel matrix; traversing the two-dimensional voxel matrix and counting the slice unit quantity value of the point cloud; obtaining the area of the point cloud slice and the volume of the sliced point cloud data, and accumulating them into the point cloud volume; adjusting the starting point of the slice, iterating until the sum of the starting point of the slice and the slice step is greater than the highest point of the point cloud data, and obtaining the volume of the entire point cloud data. The present invention achieves a balance between efficiency and accuracy by setting different parameters, is faster than the slicing method, reduces errors, improves the point cloud slicing method, and enhances the practicality and engineering level.

The present invention discloses a method and device for analyzing the stability of the bottom of a narrow foundation pit against heave, which relates to the technical field of geotechnical engineering. Among them, the method for analyzing the stability of the bottom of a narrow foundation pit against heave is applicable to anchored and braced narrow foundation pits, and includes the following steps: determining whether the current foundation pit is a narrow foundation pit; when the current foundation pit is a narrow foundation pit, dividing the soil mass into slices based on the principle of the Swedish slice method; analyzing the forces acting on the divided slices and calculating the safety factor for the stability of the bottom of the foundation pit against heave. The present invention can avoid excessive embedment depth of the retaining structure and has better social and economic benefits.