Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

30results about How to "Rapid design" patented technology

A shale oil system three-dimensional fracturing complex fracture network design method and system

ActiveCN119333090BStrong universalityReduce parameter requirementsGeometric CADMaterial analysis by optical means
This invention provides a method and system for designing complex fracture networks in three-dimensional fracturing of shale oil systems. The method includes: first, identifying the original three-dimensional seepage paths of reservoir samples, including natural fractures and pores, using core observation and microscopic identification. Then, using CT and NMR techniques, the number and morphology of fractures are quantitatively characterized and delineated, forming digital characterization units of the pore-fracture network structure. Next, appropriate fracturing processes are selected based on different original fracture matching relationships, including controlled near-to-far expansion, broadband expansion, and pressurized expansion processes. A CO2-based pre-fracturing acid initiation process is added. Finally, based on optimized and reasonable three-dimensional fracturing parameters for the well group, a refined three-dimensional geological model, a geostress model, and a numerical simulation model of the actual well group are established. This three-dimensional fracturing network design method has advantages such as high accuracy, comprehensive parameters, convenience, and ease of operation.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Deep learning optical imaging system design method based on complex function neural network

The application provides a kind of deep learning optical imaging system design method based on complex function neural network, comprising the following steps: step one, object distance, system focal length, F number as input, according to the ideal optical system imaging relationship, determine image distance, imaging scale ratio;Step two, according to the imaging scale ratio and the object image of ideal optical system, the image of ideal optical system is calculated;Step three, construct complex function generator network model, step four, construct discriminator network model, step five, after the establishment, training of the above-mentioned complex function neural network deep learning model, step six, use phase.The deep learning optical imaging system design method based on complex function neural network provided by the application solves the correlation between the advantages and disadvantages of the design result and the experience value of the designer, without the designer providing initial structure parameters;Greatly improve the computing ability and optimization speed.
Owner:HANGZHOU INST FOR ADVANCED STUDY UCAS

Intelligent integrated power supply system based on multi-source cooperation and control method

This invention relates to the field of power management technology, and particularly to an intelligent integrated power system and control method based on multi-source collaboration, including a main power module, a backup power cluster, an energy management unit, a voltage adaptation module, a status monitoring unit, a communication module, and a load interface. Compared to existing technologies that typically use a single type of battery pack as a backup power source, which suffers from slow response speed and difficulty in withstanding instantaneous high-power surges, this invention employs a heterogeneous energy storage system composed of parallel lithium battery packs and supercapacitor modules as the backup power cluster, and uses a bidirectional DC / DC converter for intelligent control. This solution fully leverages the different advantages of lithium batteries (high energy density) and supercapacitors (high power density and rapid response), enabling the system to provide both long-term backup power support and instantaneous high-power discharge, thereby significantly improving the dynamic response capability, power support reliability, and overall service life of the backup power source.
Owner:YANTAI HAIFA ELECTRIC SCI CO LTD

A magnetic resonance-compatible programmable synchronized optical stimulation system

A magnetic resonance-compatible programmable synchronized photostimulation system includes a main control unit and a stimulation execution unit. The main control unit is located outside the magnetic resonance scanning room, while the stimulation execution unit is located inside the scanning room and consists only of an LED light panel shielded by a magnetic field. The main control unit is configured to: receive photostimulation sequence parameters configured by the user in a modular manner through a graphical interface; receive a scan trigger signal from the magnetic resonance equipment, and automatically control the start and stop of the photostimulation sequence based on the trigger signal using hardware triggering; thereby achieving high-precision time synchronization between photostimulation and magnetic resonance scanning while maintaining magnetic resonance compatibility. This invention solves electromagnetic compatibility issues through a split architecture, achieves millisecond-level synchronization accuracy through hardware TTL triggering, and enhances experimental paradigm flexibility through modular programmable sequences, making it suitable for neuroscience research fields such as functional magnetic resonance imaging.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Sewing machine, needle bar crank of sewing machine and design method of needle bar crank

The invention provides a sewing machine, a needle bar crank of the sewing machine and a design method of the needle bar crank. The design method comprises the following steps: establishing a dynamic model of the needle bar crank in dynamic simulation software, and establishing a simulated mass center of the needle bar crank; setting a plurality of groups of parameter conditions, adjusting the simulated mass center according to the plurality of groups of parameter conditions in dynamics simulation software, and calculating the inertia force of the needle bar crank to the front bearing seat under different parameter conditions. The inertia force meeting the set condition is selected from the inertia force of the needle bar crank on the front bearing seat under the condition of different parameters, and the needle bar crank is designed according to the parameter condition corresponding to the inertia force. According to the technical scheme, the parameters of the mass center of the needle bar crank are simulated and adjusted through the dynamic simulation software, the parameter conditions enabling the inertia force of the needle bar crank mechanism to meet the set conditions are selected, the optimal needle bar crank can be rapidly designed according to the parameter conditions, then vibration and noise generated when the sewing machine works are weakened and improved, and the working efficiency of the sewing machine is improved. And the motion precision and stability of the sewing machine are improved.
Owner:JACK SEWING MASCH CO LTD

Nanoparticle, preparation method and application thereof in early cancer screening

ActiveCN121988296Aforced vertical active conformationImprove capture efficiencyComponent separationOther chemical processesAntigenStage tumor
The invention provides a nanoparticle, a preparation method and a cancer early screening related application thereof, the nanoparticle comprises a superparamagnetic nano core, a cationic polymer modified on the surface of the superparamagnetic nano core and a targeting polypeptide grafted on the cationic polymer, the targeting polypeptide can specifically recognize a tumor specific antigen protein, and has a modular structure comprising a rigid helix and a charge repulsion sequence. The plasma low-abundance protein-enriched nanoparticles provided by the invention can be used for early screening detection of tumors through liquid biopsy, can significantly improve the detection rate of early tumors, and have important clinical significance.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES

Low pressure loss lightweight injection molding machine mold closing control integrated unit

This invention discloses a low-pressure-loss, lightweight integrated control unit for injection molding machine mold clamping, comprising an integrated unit body and a hydraulically controlled directional valve and first to third cartridge valves integrated within it. First to fourth solenoid valves are superimposed on the outside of the unit body. The unit body has P-ports, T-ports, and multiple external working ports, which are connected to actuators such as the mold adjusting motor and the mold clamping cylinder. Each port is interconnected with the cartridge valve ports and solenoid valve mounting surfaces through internal process holes, forming a compact oil circuit. This invention, through high valve body integration and optimized oil circuit design, significantly shortens the flow path, reduces pressure loss and energy consumption, and improves system response speed and sealing reliability. The integrated unit body, cast in one piece, is compact, lightweight, easy to process and assemble, reduces the number of parts and maintenance costs, and is suitable for efficient control of injection molding machine mold clamping systems.
Owner:SHANXI SCENERY MACHINE MFG

Mica ceramic heating plate and assembling method thereof

The invention discloses a mica ceramic heating plate and an assembling method thereof, and belongs to the technical field of electric heating equipment, the heating plate comprises a plate body assembly, the plate body assembly comprises an upper plate cover and a lower plate seat, one end of the lower plate seat is provided with a mounting groove matched with the upper plate cover, and the other end of the lower plate seat is provided with a cavity communicated with the mounting groove; a heating assembly is arranged in the mounting groove and located between the upper disc cover and the lower disc base, the heating assembly comprises a base plate matched with the mounting groove and mica sheets arranged on the surfaces of the two sides of the base plate, and the mica sheets on the two sides of the base plate are flexibly attached to the lower disc base and the upper disc cover respectively. According to the heating disc of the scheme, thermal resistance caused by air gaps in the heating disc can be eliminated, and heat is efficiently conducted to the heating disc; meanwhile, stress generated by thermal expansion and cold contraction of an internal structure can be effectively absorbed, damage such as cracking of the disc body is prevented, and the service life of the disc body is effectively prolonged. According to the scheme, the assembly method is simple, and heat loss caused by air gaps in the heating disc can be effectively eliminated.
Owner:ZHEJIANG ADVANCED THERMOELECTRIC TECH CO LTD

Method and system for predicting elastic stability of aircraft under action of swinging nozzle thrust

The invention provides a method and system for predicting the elastic stability of an aircraft under the action of swing nozzle thrust, and the method comprises the steps: S1, constructing a one-dimensional finite element model, and obtaining an inertial measurement assembly position vector L and a swing nozzle thrust action point position vector R; s2, checking the one-dimensional finite element model to obtain a generalized mass matrix, a generalized stiffness matrix, a generalized damping matrix and a modal shape matrix; s3, establishing a state space model of a transfer function from the projectile body angular velocity to the swing nozzle swing angle response and the swing angle acceleration response, and obtaining a state equation; s4, establishing a generalized structure kinetic equation under the action of the thrust of the swing nozzle; s5, the generalized structure kinetic equation and the state equation are combined; and S6, evaluating the elastic stability of the aircraft. According to the method, stylized prediction of the elastic stability of the aircraft under the action of servo control and swing nozzle thrust can be realized, and the method has good rapidness and applicability.
Owner:SHANGHAI INST OF ELECTROMECHANICAL ENG

A pareto optimal design method of wireless charging coil

The application provides a kind of pareto optimal design method of wireless charging coil, medium, coil and system, it is related to wireless power transmission technical field.The application obtains scene parameters and constraint conditions, defines the boundary conditions and input of optimization;By integrating the weight vector into the state space of reinforcement learning, using the powerful exploration ability of deep reinforcement learning as an efficient search tool, quickly traversing the complex solution space, thus efficiently and globally exploring and obtaining the pareto optimal solution set reflecting the complete trade-off relationship between transmission efficiency and anti-offset performance.The application uses deep reinforcement learning to efficiently explore the design space and obtain a complete set of pareto optimal solutions, allowing for quick selection of optimal coil parameters based on different design preferences, significantly reducing the design cycle, and ensuring that the designed coil achieves the optimal trade-off in physical performance.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

Cyclone milling machine special for short material worm

The utility model provides a whirlwind milling machine special for a short material worm, and belongs to the technical field of worm machining equipment. The problem that an existing whirlwind milling machine is low in short screw machining efficiency is solved. The whirlwind milling machine special for the short material worm comprises a machine body, a feeding mechanism assembly, a machine tool spindle assembly and a whirlwind milling head assembly, the machine tool spindle assembly is located between the feeding mechanism assembly and the whirlwind milling head assembly, the feeding mechanism assembly comprises a hopper, a lifting mechanism and a pushing mechanism, the lifting mechanism is used for lifting a workpiece upwards from the inside of the hopper, and the pushing mechanism is used for pushing the workpiece upwards from the inside of the hopper. The pushing mechanism is provided with a transversely-arranged push rod, and the push rod can push the lifted workpiece into the machine tool spindle assembly. The machine tool further comprises a tailstock mechanism which is located on one side of the whirlwind milling head assembly, and the tailstock mechanism is provided with a center which is transversely arranged and is opposite to the machine tool spindle assembly. According to the utility model, the workpiece to be processed can be designed to be shorter, the processing range is longer, the working procedures are fewer, and the processing efficiency is higher.
Owner:ZHEJIANG DEREBAO ELECTRIC TECH

A method for constructing a prefabricated computer room

ActiveCN120372763Brapid designSpeed up modelingGeometric CADConfiguration CADModelSimDesign phase
This invention provides a method for constructing a prefabricated computer room, relating to the field of prefabricated computer room construction technology. First, parameter information of various components within the computer room is acquired. Based on these parameters, basic families and basic models are created, resulting in a model library. Then, combined with the model library, the design of pipe components, pump sets, and pump set installation structures within the computer room is completed. Drawings are then output, and finally, construction is carried out. This invention establishes a model library for different components by acquiring information about the computer room components. During the design phase, by setting or modifying some parameters of the basic model, suitable component models can be obtained, enabling rapid design of modules of different types and sizes, greatly accelerating the efficiency of computer room modeling and refinement. Simultaneously, pipe components are segmented into multiple prefabricated sections, and pump sets and installation structures are prefabricated as modules, making pipe components and pump set modules easier to manufacture, transport, and install.
Owner:CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD +1

Multi-branched, spherical crown, flanged precast structure and its three-dimensional weaving method

This invention discloses a three-dimensional weaving method for a multi-branched prefabricated structure containing a spherical crown and a flange. The method includes: weaving the spherical crown using a three-dimensional six-directional or three-dimensional seven-directional weaving method, reserving yarn during the weaving process; weaving the flange using the same method based on the woven spherical crown; and weaving the branch structure using a three-dimensional five-directional weaving method with the yarn reserved during the spherical crown weaving process, thus obtaining the multi-branched prefabricated structure containing a spherical crown and a flange. This invention also discloses a multi-branched prefabricated structure containing a spherical crown and a flange obtained using the above weaving method. This invention enables three-dimensional weaving of multi-branched prefabricated structures containing a spherical crown and a flange, with a simple process that improves product quality and performance.
Owner:BEIJING SATELLITE MFG FACTORY

Automated optimization fitting method and system for automobile body Bézier curve

ActiveCN116385586BConvenient for CAD designCAD design fastGeometric CADInternal combustion piston enginesAlgorithmRectangular coordinates
The application provides an automatic optimization fitting method and system for a Bézier curve of an automobile body. Firstly, a deviation matrix and an average fitting distance are extracted, including extracting a deviation matrix of an area where a real line of the automobile body is located, discretizing an initialized Bézier curve, extracting a boundary deviation matrix, and determining an average fitting distance according to a deviation distance. Then, a control point update amount and an updated control point are extracted, including four control points of the Bézier curve, extracting an update amount of the control point in different directions in a rectangular coordinate according to a minimum deviation condition and a fitting distance in a fitting condition, obtaining a new control point, extracting an average fitting distance of the updated point, comparing the new average fitting distance with the average fitting distance calculated in the last step to determine whether the control point needs to be updated, adjusting the next control point in the same way, and iteratively updating the control point to finally obtain an optimized curve, so that the integration and smoothness of the reconstructed automobile body curve are realized after the discrete points of the original automobile body appearance are extracted.
Owner:WUHAN UNIV OF SCI & TECH

A rapid shaping method for large antenna arrays based on partition calibration and proximity coupling

PendingCN122088432AAccurately capture boundary effectsAccurately calculate port matching statusComputer aided designSpecial data processing applicationsAntenna designFull wave
This invention discloses a rapid beamforming method for large antenna arrays based on partitioned calibration and proximity coupling, belonging to the field of antenna design and electromagnetic simulation technology. It aims to obtain the actual realized gain pattern of large mutually coupled arrays at low cost and high speed. This invention models the array in differentiated regions: precise simulation of local coupling is performed on edge elements, while data reuse is achieved for central region elements using a pre-calibrated equivalent model. After acquiring the electric field data of each element, a global optimization algorithm based on the mutually coupled environment is used to directly solve for the element excitation distribution that optimizes beam pointing performance, and the actual realized gain pattern conforming to the actual port matching state is quickly synthesized. Simulation results show that, while maintaining accuracy similar to full-wave simulation, this invention only requires simulating a small number of key elements to efficiently synthesize the radiation pattern of a large-scale array, significantly improving design efficiency.
Owner:NANJING UNIV OF INFORMATION SCI & TECH

Microwave atomic force microscope probe based on coplanar waveguide structure and preparation method

The invention discloses a microwave atomic force microscope probe based on a coplanar waveguide structure and a preparation method, and belongs to the field of micro-nano detection and atomic force microscopes. The probe comprises a clamping part and a cantilever beam, a central conductor is laid on the axes of the upper surfaces of the clamping part and the cantilever beam, grounding metal layers are symmetrically arranged on the two sides of the central conductor at certain intervals, the grounding metal layers and the central conductor are parallel and equal in length, and the central conductor, the grounding metal layers and gaps between the central conductor and the grounding metal layers form a clamping part coplanar waveguide structure; and the central conductor and the grounding metal layer of the clamping part are respectively connected with the central conductor and the grounding metal layer of the cantilever beam to form a microwave transmission circuit, and the microwave transmission circuit is converted into a coaxial transmission line structure at the needle point to transmit a microwave signal to the needle point, so that emission and receiving of a near-field microwave signal are realized. According to the invention, the design is flexible, integration is easy, low-loss and low-dispersion transmission of microwave signals is facilitated, the design complexity and manufacturing cost of the probe are reduced, and effective support is provided for micro-nano detection and an atomic force microscope technology.
Owner:ZHEJIANG UNIV

Transmission structure and method of fuel injection pump and electronic unit pump system

The invention discloses a transmission structure and method of an oil injection pump and an electronic unit pump system, belongs to the technical field of engines, and solves the problems that a rotating shaft of an oil injection part is too large in torsional force and easy to damage. A transmission shaft sleeve used for being connected with an engine body is arranged at the end, close to a fuel injection pump cam shaft, of the fuel injection pump, a transmission shaft is rotationally arranged in the transmission shaft sleeve, an inner spline is arranged at one end of the transmission shaft, and a transmission outer spline sleeve is arranged on the inner spline. The transmission outer spline sleeve is sleeved on a fuel injection pump cam shaft of the fuel injection pump, a gear is arranged at the other end of the transmission shaft, a plurality of mounting grooves are arranged on the fuel injection pump on the outer side of the fuel injection pump cam shaft, and supporting bushes used for supporting the fuel injection pump cam shaft are arranged in the mounting grooves. According to the transmission structure and method of the fuel injection pump and the electronic unit pump system, the structure is compact, arrangement is convenient, camshaft faults are reduced, and the stability of the fuel injection pump is improved.
Owner:GUANGXI YUCHAI MARINE & GENSET POWER CO LTD

Helicopter main reducer rigidity collaborative optimization method based on orthogonal test

The invention provides a helicopter main reducer rigidity collaborative optimization method based on an orthogonal test, and belongs to the technical field of gear transmission. The method comprises the following steps: determining key parameters of the helicopter main reducer transmission system; respectively calculating the torsional rigidity, the supporting rigidity and the meshing rigidity of the transmission system; constructing a helicopter main reducer transmission system quasi-statics model based on the deformation coordination condition; in combination with orthogonal experimental design, multi-level experimental design is carried out on stiffness parameters of each level, a system uniform load coefficient is solved through a quasi-statics program, key influence factors and optimization level are determined by utilizing range analysis, and finally collaborative optimization of the system stiffness is realized. By systematically analyzing the influence of each rigidity on the uniform load coefficient of the system, collaborative optimization of the rigidity of the helicopter main speed reducer transmission system is realized, and the uniform load characteristic of the helicopter main speed reducer transmission system is improved.
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1

Design method for movable trash rack bars

The invention discloses a design method, particularly discloses a design method for movable trash rack bars, and belongs to the technical field of hydraulic metal structure design processes. According to the design method for the movable trash rack bar, the design and calculation workload can be remarkably reduced, and the overall comprehensive performance of the rack bar is fully considered. The design method comprises a grid frame, and comprises the following steps: firstly, taking an upper main beam and a lower main beam of the grid frame as two simple fulcrums, preliminarily determining the length l1 of each cantilever end of a grid bar, which is positioned on the outer side of each main beam supporting simple fulcrum, according to the following calculation formula, and then determining the length l0 of a simple supporting end of the grid bar, which is positioned on the inner sides of the two simple fulcrums, according to the following calculation formula, and finally determining the total length L of each grid bar, and when the total length L of the grid bars exceeds 3300mm, correcting according to the following calculation formula. By the adoption of the design method, the length of each section, with the simple supporting point as the supporting center, of the trash rack bar can be rapidly distributed.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Anchorage design method for irregular boundary slope surface based on topological relationship

ActiveCN118153155Bquick statisticsstatistically accurate
The application discloses an anchor design method for an irregular boundary slope surface based on a topological relation and is suitable for the technical field of dangerous rock mass prevention and control, and comprises the following steps: S1, determining an anchor arrangement area and establishing a two-dimensional plane corresponding to a three-dimensional model of the anchor arrangement area based on computer graphics; S2, defining an anchor arrangement rule based on the topological relation; S3, dividing the anchor arrangement area based on the anchor arrangement rule and the two-dimensional plane to obtain a division result; and S4, arranging anchors and updating anchor position space topological relations and anchor related information according to the division result. The three-dimensional irregular slope surface is projected on a two-dimensional plane for anchor arrangement through the topological relation, and the anchor arrangement rule is set, so that efficient, quick and compatible arrangement of various reinforcement combination schemes on the irregular geological body is realized, and then reinforcement engineering quantity is quickly and accurately counted, and the design efficiency is effectively improved.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Method for generating verification model through any-order ray tracing

The invention relates to a method for generating a verification model through any-order ray tracing. The method comprises the following steps: inputting and determining an incident point coordinate, an N-order reflection point coordinate and an emergent point coordinate after ray escape after the latest reflection; calculating an incident direction and a reflection direction of the ith reflection, and calculating a normal vector on a reflection point of the ith reflection; establishing a reflection local coordinate system of i-th reflection by taking the reflection point as an original point; and generating a model or a grid of the reflection system according to the reflection local coordinate system. According to the method, the accuracy of a ray tracing verification model is remarkably improved, the method can be adapted to any ray reflection scene of a positive integer order, and a high-fidelity model support is provided for design of various complex optical reflection systems and ray tracing simulation.
Owner:DONGXIN ELECTROMAGNETIC TECH (CHENGDU) CO LTD

A Machine Learning-Based Molecular Design Method for Ethylene Oligomerization Catalysts

This invention discloses a machine learning-based molecular design method for ethylene oligomerization catalysts, comprising: extracting descriptors of the catalytic system as independent variables and experimental or calculated oligomerization results as dependent variables to establish a database of the catalytic system; establishing a model relationship between the descriptors and experimental or calculated oligomerization results through database learning to obtain a machine learning model; and predicting the target catalytic system and its ligands based on the target oligomerization results according to the machine learning model. The machine learning-based ethylene oligomerization design method of this invention, applied to ethylene trimerization and tetramerization, shows a high degree of agreement between experimental and target values, providing a new approach for rapidly designing the required catalytic system and its ligands, thereby enabling rapid screening and highly accurate prediction of highly selective catalytic systems.
Owner:EAST CHINA UNIV OF SCI & TECH

Sysml-based design method and apparatus for resistive superconducting current limiter

The application discloses a kind of resistance type superconducting current limiter design method and device based on SysML, the method comprises the following steps: S1, the design requirement of resistance type superconducting current limiter is obtained and requirement analysis is carried out;S2, according to design requirement, the function logic architecture of resistance type superconducting current limiter is analyzed;S3, the physical architecture of resistance type superconducting current limiter is obtained by converting through design parameter and function logic architecture;S4, the design result of resistance type superconducting current limiter is output and obtained by physical architecture and the set thermoelectric analogy algorithm.The application solves the technical problems that the complexity of finite element simulation and numerical simulation in the prior art is too high, and the design process requirement analysis and architecture design are insufficient, can quickly design resistance type superconducting current limiter and improve the accuracy and consistency of its design result.
Owner:BEIJING RESEARCH INSTITUTE OF MECHANICAL & ELECTRICAL TECHNOLOGY CO LTD CAM

Suspension type converter valve corner type damping device and design method

PendingCN121993537AThe structure does not changeDoes not affect inspection workNon-rotating vibration suppressionPower conversion systemsDamperControl theory
The invention provides a suspension type converter valve corner type damping device and a design method, and the device comprises at least two groups of angular displacement type dampers which are respectively disposed at the corner positions of the top corner points of a suspension mechanism at the top of a converter valve. Two ends of the angular displacement type shock absorber are respectively connected with a top steel structure of the converter valve hall and an upper flange of the suspension mechanism; according to the device, the angular displacement type shock absorber is arranged at the corner position of the top corner point of the suspension mechanism, so that the original equipment structure of the suspension type converter valve is not changed, the normal work of equipment and the inspection work of a trolley below the converter valve are not influenced, the process layout in a valve hall is not damaged, and other adjacent electric power facilities are not interfered; the method has relatively high engineering implementability; according to the method, by determining the initial yield force and the initial damping coefficient, a finite element simulation model can be rapidly built for simulation calculation, and therefore shock absorber type selection design is rapidly completed.
Owner:国网电力工程研究院有限公司 +1

In-pump flow field prediction method based on arbitrary shape immersion boundary method, terminal and medium

The invention relates to the technical field of in-pump flow field analysis, and discloses an in-pump flow field prediction method based on an arbitrary shape immersion boundary method, a terminal and a medium. The method comprises the following steps: importing a fixed boundary part model in a pump, and analyzing and identifying a fluid domain according to the model; dividing a fluid domain grid based on a Cartesian grid, and refining a local grid of the fluid domain grid to generate a computational domain of the pump body; importing a rotating part model in the pump, and combining the fluid domain grid and the rotating part model to update the computational domain; setting a rotation parameter, a boundary condition, a used solving format and a turbulence model, and completing initialization; and solving the flow field by using an immersion boundary method based on any shape. According to the method, the impeller is virtually embedded into the fluid domain grid, the solid-liquid boundary is automatically identified and processed, the rigid body speed of the impeller is forcibly applied through a constructive force item, the speed field and the pressure field in the pump are rapidly and accurately solved under the condition that a complex body-fitted grid does not need to be generated, and the simulation efficiency and the prediction precision are improved.
Owner:HEFEI GENERAL MACHINERY RES INST +1

GAN-based framework-support building structure design method, system and computer

The application discloses a framework-support building structure design method and system based on a generative adversarial network and a computer. The design method comprises four steps of pre-training a generative adversarial network, inputting and identifying a building drawing, sequentially arranging columns, supports and a structure drawing based on the building drawing and outputting the structure drawing. Evaluation indexes of the generative adversarial network comprise not only picture quality but also subjective and objective evaluations of the building structure. According to a conditional probability formula and characteristics of the generative adversarial network, the design method decomposes a design process into two steps, improves accuracy of a design result, realizes component arrangement design of the building structure in a short time, is very accurate, has little difference in performance from a design result of a senior structure designer, is simple to use, can obtain a corresponding structure drawing by inputting a processed building drawing, can assist a building designer to complete component design of the building structure and has strong popularization.
Owner:TONGJI UNIV

Movable goal hockey game machine

The utility model discloses a movable goal hockey game machine, and relates to the field of game devices. Through the unique design of the clamping block, the pressing block and the driving mechanism, the outer seat can be quickly and conveniently replaced when the outer seat is abraded or damaged, extra tools are not needed, players or maintenance personnel can easily disassemble and assemble the outer seat by pressing the pressing rod, and the maintenance cost and the time cost are greatly reduced; due to the design that the outer base can be replaced quickly, the outer base can be replaced in time after being abraded, the situation that use of the whole control rod is affected due to damage of the outer base is avoided, the overall service life of the game machine is prolonged, and the cost performance of equipment is improved; the stability of the control rod in the using process is ensured, a player can more accurately control the movement direction and strength of the ball body, and the operation experience and competitive performance of a game are improved.
Owner:GUANGZHOU COLORFUL PARADISE ANIMATION TECHNOLOGY CO LTD

Design method for single-face butt joint of wallboards

The invention belongs to the field of wing wallboard butt joint design, and particularly relates to a wallboard single-face butt joint design method. Comprising the following steps: S1, acquiring a wallboard load of each typical calculation unit in a wallboard single-side butt joint structure; s2, determining the fastener load and fastener parameters of the typical calculation unit according to the wallboard load; s3, determining wall plate parameters of the typical calculation unit according to the fastener load; and S4, determining a butt joint structure load according to the wallboard load and the fastener load, and determining a butt joint structure parameter of the typical calculation unit according to the butt joint structure load. According to the method, wall plate single-face butt joint design aiming at integral T-shaped profile butt joint can be achieved, the method mainly comprises fastener selection, stiffened wall plate parameter design, material selection and parameter design of integral T-shaped profiles in a butt joint area and the like, and rapid design of wall plate single-face butt joint is achieved.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Rapid design method and system for spatial trend of slender pipeline in random vibration environment

The invention relates to pipeline space trend design, in particular to a rapid design method and system for the space trend of a long and thin pipeline in a random vibration environment. The method comprises the following steps: acquiring change parameters and constraint parameters of a to-be-designed slender pipeline; establishing constraint conditions; establishing a random vibration analysis model; judging whether the current change parameter accords with a constraint condition and a constraint rule or not, and if not, optimizing the change parameter; if so, obtaining random vibration result data through a random vibration analysis model; and 5, judging whether the random vibration result data accords with an optimization target or not, if so, completing the design, and if not, optimizing the current change parameter, and returning to the step 5 until the optimization target is met. The method solves the problem that the spatial trend of the elongated pipeline of the liquid rocket power system meeting the design requirement is difficult to accurately obtain at present in a heterogenous random vibration environment, and improves the reliability of the pipeline trend design.
Owner:XIAN AEROSPACE PROPULSION INST