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408results about How to "Shorten the development cycle" patented technology

Communication method between applications, terminal device and storage medium

The present application is applicable to the field of communication technology, a method of communication between applications, a terminal device and a computer readable storage media are provided. The method comprises: the first application establishes a connection with the server based on an interface provided by the first client, the second application establishes a connection with the serverbased on an interface provided by the second client, As such, a communication connection is established between that first application and the second application, the first application then sends a first communication message to the second application through the communication connection, the second application may return a second communication message to the first application through the communication connection, after the communication connection between the first application and the second application is completed, the communication connection between the first application and the second application is disconnected by the release request, and since the interface provided by the client has information for converting the data of the application to conform to the communication protocol. The communication method development period between the applications is short and the stability is good.
Owner:PAX COMP TECH SHENZHEN

Modeling method and device of airborne system functional architecture model, computer equipment and medium

The embodiment of the invention provides a modeling method and device for an airborne system function architecture model, computer equipment and a medium, and relates to the technical field of aviation architecture design, the method comprises the following steps: inputting a design requirement document into an airborne large language model, and in the large language model, under the structural constraint of an airborne system knowledge graph, establishing a design requirement document; the method comprises the following steps: extracting a logical relationship between entities required by airborne system modeling from a design demand document, screening a corresponding airborne meta-model according to the extracted logical relationship between the entities, and constructing a demand graph; constructing and outputting a text model of a concept scene, a text model of a task scene, a text model of a system function, a text model of a logic architecture and a text model of a physical architecture of the airborne system based on the demand graph; and inputting each text model into a system modeling language modeling terminal for visualization to obtain a multi-level functional architecture model of the airborne system. According to the scheme, the modeling efficiency, consistency and normalization are improved.
Owner:AVIC AIRBORNE SYSTEMS CO LTD

Fluent-based numerical simulation and experimental design method for shake of liquid in tank of tank truck

The invention discloses a Fluent-based numerical simulation and experimental design method for shaking of liquid in a tank of a tank truck, and belongs to the technical field of numerical simulation of fluid dynamics (CFD). The method includes the steps that the hole opening position of the wave-proof plate serves as an independent variable, multiple hole opening position schemes are designed, liquid shaking related indexes are determined to serve as dependent variables, a geometric model is established according to the actual structure of a tank truck tank body, a fluid mechanics model and boundary conditions are set, a solver is configured, output parameters and numerical simulation initial values are set, and an experiment is executed. The liquid shaking process of a certain swash plate trepanning scheme is simulated, acting force data, namely shaking index data, between liquid shaking and the inner wall of the tank body is recorded, the advantages and disadvantages of each trepanning position scheme are evaluated based on the shaking index data, and the optimal scheme is determined. According to the method, a real object experiment is replaced by CFD numerical simulation, parameter setting is carried out, the experiment cost and the experiment risk are remarkably reduced, the experiment efficiency is improved, and data support can be provided for industry design.
Owner:ZHEJIANG POLICE COLLEGE

Engineering potential safety hazard detection method based on multi-modal large model

PendingCN121921716AOvercome the problem of inaccurate positioningOvercome core flawsCharacter and pattern recognitionBiological modelsPattern recognitionData pack
The invention relates to an engineering potential safety hazard detection method based on a multi-modal large model. The method comprises the following steps: acquiring an on-site monitoring image of a target scene; identifying a key entity in the field monitoring image, and extracting positioning information of the key entity; generating a depth map based on the on-site monitoring image; based on the positioning information of the key entity, combining with the depth map, associating the positioning information and the depth information for the key entity, and generating a scene description text; based on the on-site monitoring image, the depth map corresponding to the on-site monitoring image and the scene description text, constructing a multi-modal input packet; inputting the multi-modal input packet into a learned engineering safety domain knowledge base and a visual language large model subjected to instruction fine tuning, and outputting a hidden danger judgment result; the instruction fine tuning of the visual language large model is based on a hidden danger inference chain data set, the data set has hidden danger images corresponding to hidden danger items in an engineering safety field knowledge base and annotation data of each hidden danger image, and the annotation data comprises step result data corresponding to each hidden danger detection step.
Owner:POWERCHINA HUADONG ENG CORP LTD +1

Method and device for predicting flavor of low-sodium myofibrillar protein

The invention discloses a low-sodium myofibrillar protein flavor prediction method and a low-sodium myofibrillar protein flavor prediction device. The method comprises the following steps: firstly, constructing a protein-flavor interaction system containing myofibrillar protein, potassium chloride, kappa-carrageenan and representative aldehyde flavor compounds; then, by means of spectroscopy, rheometer combination, an electronic tongue and the like, protein conformational change, typical aldehyde molecule binding rate and taste features are represented in a multi-dimensional mode. And establishing a random forest prediction model, taking protein conformation parameters as input, and taking a flavor binding rate and effective taste intensity as output. The model can reveal cross correlation between protein conformations and functions and identify key conformation parameters that affect flavor. And in combination with quantification and prediction capabilities of the model, a conformation-flavor relationship can be systematically analyzed, a basis is provided for optimization of a low-sodium formula, flavor is enhanced while salty taste is increased and bitter taste is inhibited, and healthy and sustainable development of low-sodium meat products is promoted.
Owner:SHANGHAI JIAOTONG UNIV

Bridging method and system for cross-language interface of KaihongOS, terminal and storage medium

The invention relates to the technical field of computer software, and discloses a bridging method and system for a cross-language interface of KaihongOS, a terminal and a storage medium. The method comprises the steps that an interface definition file is analyzed, and function declaration information of a target interface is obtained; analyzing a native interface definition file to obtain implementation information of a native interface corresponding to the target interface; and based on the function declaration information and the implementation information, according to a preset bridging rule, automatically generating a bridging function code conforming to a target operation environment, and bridging a cross-language interface through the bridging function code. According to the method, through automatic analysis and code generation, the bridging function code meeting the target operation environment is automatically generated by improving the code quality, and repeated labor and potential errors in manual writing are avoided. A preset bridging rule ensures the consistency and maintainability of codes, the technical threshold can be effectively reduced, and the project cycle is shortened.
Owner:深圳开鸿数字产业发展有限公司

A pump housing mold

The utility model belongs to mould technical field, concretely relates to a pump shell mould, including die blank and mould core, die blank includes base, top cover and thimble mechanism, the upper surface of base is equipped with lower accommodating groove, the lower surface of top cover is equipped with upper accommodating groove, the mould core is divided into upper die and lower die, is equipped with a plurality of extrusion module on die blank, extrusion module all includes drive mechanism and forming mechanism, forming mechanism is detachably connected with drive mechanism, and forming mechanism is used for forming the complete forming cavity of product with mould core cooperation, the mould core is provided with the slot mouth that is cooperated with forming mechanism. The utility model discloses a pump shell mould, is equipped with a plurality of extrusion module on die blank, and extrusion module includes forming mechanism, when the iterative product is only for the fine adjustment of some side or local position, can replace or modify the forming mechanism in the extrusion module of corresponding position alone, thereby reducing the development cycle and saving the cost.
Owner:HUNAN XINGRUI PRECISION MFG CO LTD

Amorphous alloy magnetic heat performance prediction method and system based on interpretable machine learning

The application provides an amorphous alloy magnetocaloric performance prediction method and system based on interpretable machine learning, relates to the technical field of material science and engineering, and comprises the following steps: step 1, constructing an amorphous alloy magnetocaloric performance data set, wherein the data set comprises alloy composition data, physical and chemical descriptors, external conditions and structural characteristics of a plurality of amorphous alloy samples and corresponding experimental values of maximum magnetic entropy change and Curie temperature; step 2, screening and optimizing the features in the data set, eliminating the collinearity between the features and performing recursive feature elimination to determine the final feature subsets for predicting the maximum magnetic entropy change and the Curie temperature respectively; and step 3, establishing machine learning models for predicting the maximum magnetic entropy change and the Curie temperature respectively through the final feature subsets, and training and optimizing the models to obtain the trained prediction models. The application realizes a closed loop of high-precision performance prediction, physical mechanism analysis and directional composition design.
Owner:HUNAN CITY UNIV

Locking driving mechanism and ignition switch assembly

The utility model relates to the technical field of motorcycle accessories, and discloses a locking driving mechanism and an ignition switch assembly. The locking driving mechanism comprises a bottom plate with a shaft hole, a cover body covering the bottom plate to form a mounting cavity, a motor mounted in the cavity and provided with an output shaft with an output gear, and a telescopic rod penetrating through the shaft hole and an end driving tooth surface to be in meshing transmission with the output gear. The design abandons complex electromagnetic drive, the structure is simple, and the cost is reduced. Through combination of the motor and the telescopic rod, parts are reduced, and the manufacturing process is simplified; the modular design facilitates maintenance, improves reliability, can adapt to different ignition switch assemblies, and is flexible in application.
Owner:ZHEJIANG HENGYI INTELLIGENT TECH CO LTD

Method and system for controllably and automatically generating creativity evaluation situation based on evolution optimization

PendingCN121998176Astable generationStimulate creativity and divergent thinkingForecastingNatural language data processingClosed loopIndustrial engineering
The invention discloses a creativity evaluation situation controllable automatic generation method and system based on evolution optimization, and belongs to the technical field of intelligent education. According to the method, a closed-loop process of hierarchical constraint planning-Monte Carlo sentence level generation-evolution variation screening-simulation evaluation feedback iteration is adopted, a situation outline is planned firstly, then a seed text is generated, diversity and quality are optimized through Map-Elites, and a high-quality text is screened in combination with virtual evaluation feedback iteration. The system comprises a user request module, a data loading module, a model generation module and an interaction module. The problems that existing situation generation depends on experts, efficiency is low and controllability is insufficient are solved, the assessment situation with the complete structure and high adaptability is automatically generated, development cost is reduced, and large-scale standardized assessment is assisted.
Owner:EAST CHINA NORMAL UNIV

Internet of things multi-Android client state synchronization method

The invention relates to the technical field of Internet of Things communication, discloses an Internet of Things multi-Android client state synchronization method, and solves the problems of poor state consistency, high back-end dependence, large delay and insufficient compatibility in the prior art. According to the scheme, the method comprises the steps that after a client completes initialization, MQTT connection with a rear end is established, an MQTT state message pushed by the rear end is monitored, after the message is received, equipment state information is obtained through analysis, local state cache and a UI interface are updated, meanwhile, the client serves as a distribution node, a UDP synchronization message containing the equipment state and the IP of the distribution node is established, and the UDP synchronization message is sent to the client. The UDP synchronization message is broadcasted to the local area network, other clients in the local area network receive the UDP synchronization message and then verify whether the distribution node IP is the client in the local area network, if the verification is passed, the message is analyzed, the state updating timestamp and the local cache timestamp are compared, and the local state cache and the UI interface are updated only when the state updating timestamp is larger.
Owner:SICHUAN CHANGHONG EDUCATION TECH

A method for determining a forming tooling mold surface of a composite stiffened panel based on long stringer deformation capability

PendingCN122379832AFacilitates precise manufacturingConducive to iteration
The application belongs to the field of aircraft composite part manufacturing, and particularly relates to a method for determining a model surface of a composite stiffened panel forming tool based on the deformation capacity of a stringer. The method considers the deformation capacity of the stringer before tooling, effectively avoids the problems of scrapping, cycle, cost and the like caused by the mismatch between the stringer and the product skin after tooling, saves the development cycle, and is beneficial to the accurate manufacturing and iteration of the panel.
Owner:AVIC SAC COMML AIRCRAFT

Hover control method and device for tilt-rotor short take-off and landing aircraft

The application relates to the field of flight control technology, in particular to a hovering control method and device for a short take-off and vertical landing aircraft of a tilt-rotor type, wherein the method comprises the following steps: constructing a hovering nonlinear dynamics model of the short take-off and vertical landing aircraft containing a tilt-rotor power system; converting the hovering nonlinear dynamics model of the short take-off and vertical landing aircraft into a high-order full-drive system model to design a state tracking controller; designing an adaptive law based on a neural network to estimate nonlinear terms in the hovering nonlinear dynamics model of the short take-off and vertical landing aircraft; and feeding back the nonlinear terms to the state tracking controller to perform hovering mode stable control. Thus, the problems that the hovering control method based on dynamic inversion needs a large amount of linearization processing, the actuator dynamic characteristics are significantly different, the controller needs to verify the closed-loop performance through repeated simulation and experiment, and the multi-actuator decoupling efficiency of the aircraft is low and the robust control performance is poor are solved.
Owner:TSINGHUA UNIVERSITY

Decision-making system and method based on Dores database

PendingCN121935307AImprove real-time processing performancereal time monitoringDatabase updatingFinanceData synchronizationData aggregator
The invention discloses a decision-making system and method based on a Dores database, and the system comprises a data access layer which is used for accessing multi-source heterogeneous financial data in real time, a Dores storage calculation layer, and achieves the data storage, column-type bucket separation and materialized view pre-calculation based on the Dores database; the visual application layer is used for providing bidirectional interactive financial data visualization and decision support; wherein the data access layer acquires data in real time through a streaming computing engine and transmits the data to the Dores storage computing layer, and the visual application layer performs real-time data interaction with the Dores storage computing layer through a two-way communication protocol. According to the method, the synchronous delay of financial data is shortened from 6 hours to 1 second, second-level real-time integration is realized, the aggregation query response time of billion-level data is reduced to be within 1 second based on a Dores column type storage and materialized view technology, the user interaction response delay is lower than 500 milliseconds through WebSocket two-way communication, and real-time adjustment of parameters and dynamic refreshing of a billboard are supported.
Owner:商飞软件有限公司 +1

A ship intelligent navigation algorithm simulation verification system and test method

The application discloses a kind of ship intelligent navigation algorithm simulation verification system and test method, the system uses four-layer modular structure, including: virtual navigation environment module, standardization data interaction module, algorithm execution module, quantitative evaluation module;Between each module, standardization data interaction module is realized two-way data transmission, forms the complete simulation verification system capable of independent test and closed-loop operation.The method, using the system, the steps are: step 1: build inland virtual navigation scene, step 2: select test mode and configure algorithm, step 3: start simulation and data acquisition, step 4: evaluation index calculation, step 5: generate verification report.The algorithm unit of the application can be independently accessed to test, without overall reconstruction, perception, decision-making, control algorithm can be quickly adapted, greatly reduce the difficulty of integration debugging, improve algorithm development and verification efficiency, effectively shorten the intelligent ship development cycle.
Owner:THE 704TH RES INST OF CHINA STATE SHIPBUILDING CORP

A method for screening metal single-atom catalysts for the hydrochlorination of acetylene with nitrogen-containing functional groups

PendingCN122598837AReveal the influence of stabilityReveal the influence of structural stability
The present application belongs to the technical field of catalyst calculation design and screening, in particular to a screening method for metal monatomic catalysts with nitrogen-containing functional groups for acetylene hydrochlorination reaction, comprising the following steps: constructing a single-atom catalyst candidate structure model with nitrogen-containing functional groups coordinated with metal chlorides; using first-principle calculation method to optimize the geometric structure of all candidate structure models, obtaining the ground state stable configuration, calculating the binding energy, and performing preliminary stability evaluation; correcting the free energy of the optimized stable configuration, calculating the thermodynamic binding energy; obtaining the influence law of temperature and chlorine chemical potential on the stability of active center structure; screening out the functional group-metal chloride coordination configuration with negative binding energy under the target reaction conditions as the stable candidate active site. The present application provides a theoretical basis and prediction method for rationally designing high-stability acetylene hydrochlorination reaction catalyst active sites, which can significantly reduce the trial-and-error cost and research and development cycle of catalyst development.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES +1

A selection method and device for a compression mechanism type, an electronic device, and a storage medium

ActiveCN122413620BAchieve design index requirementsShorten the development cycle
The present application relates to the technical field of compressor design, and discloses a selection method and device for compressor type, electronic equipment and storage medium, wherein the present application obtains a set of index parameter values and a set of boundary constraint values of a compressor design point, then calculates the outlet conversion flow of the compressor based on the set of index parameter values, calculates the load coefficient of the compressor based on the set of index parameter values and the set of boundary constraint values, finally compares the outlet conversion flow of the compressor with a set of preset flow threshold values, compares the load coefficient of the compressor with a preset load coefficient threshold value, and determines the target compressor type, so that the selected compressor type can meet the design index requirements, and detailed argumentation design for compressor selection is not needed, which significantly shortens the engine development cycle.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Butt joint tolerance distribution method for fork ear type joints

PendingCN121859514ACalculated data is authentic and reliableshorten the timeGeometric CADDesign optimisation/simulationData packData set
The invention provides a fork lug type connector butt joint tolerance distribution method, belongs to the technical field of aeronautical manufacturing, and particularly comprises the steps that an assembly mathematical model of a fork lug type connector is imported into simulation analysis software, and then the assembly state of the fork lug type connector and the assembly state of a support lug type connector are integrally separated; the machining precision of butt joint holes of the fork lug type connector and the support lug type connector is input; performing rotation assembly iteration and translation assembly iteration on the model data generated by each simulation analysis software in sequence, and setting rotation assembly iteration times and translation assembly iteration times; rotation assembly iteration times and translation assembly iteration are carried out; after simulation is finished, a simulation result is output, data of the simulation result comprises a minimum containing value data set of each piece of model data, and the number of minimum containing values of each data set is equal to the number of the fork ear type connectors. By means of the processing scheme, the assembling quality and efficiency of the plug-in type connector are improved.
Owner:SHAANXI AIRCRAFT CORPORATION

A method for predicting a tire contact pressure distribution pattern based on a deep neural network

The application discloses a kind of based on deep neural network's tire ground pressure distribution form prediction method, method includes: generating simulation sample;Calibration is carried out to simulation sample, and calibration sample is obtained;Performing physical information-driven data enhancement operation, integration generates multi-working condition sample library;Deep neural network model is built;Deep neural network model is iteratively trained and model weight solidification is completed, and prediction model is obtained;It is predicted;The deep neural network of the application is constructed by encoder-decoder architecture, and the tire ground pressure distribution calculation that traditional finite element simulation needs several hours to complete is compressed to millisecond order, and the technical bottleneck of time-consuming physical simulation is broken through.In the absence of any physical sample, only by inputting structure design parameters and working condition parameters, the pressure distribution form covered in full working condition can be obtained in real time, supporting the rapid screening and optimization iteration of hundreds of tire structure schemes in a single day, significantly shortening the tire development cycle.
Owner:KUMHO TIRE (CHANGCHUN) CO INC

A method and system for generating a PLM business form through data modeling

The application discloses a method for generating a PLM business form through data modeling, which uses an import tool of a PLM system to import a business design scheme of the PLM system, generates a data model of the PLM system, a configuration item of the PLM business form and a corresponding navigation menu configuration item; obtains a navigation menu item input by a user, queries a unique identifier formId of a PLM business form corresponding to the menu according to a unique identifier menuId, queries the configuration item of the PLM business form according to the formId, generates the PLM business form according to the obtained configuration item, queries the imported data model according to parameters of the PLM business form, and generates details of each area of the PLM business form. The application can solve the technical problems of long time consumption, high cost and poor adaptability of the existing deep customization method, the technical problem of re-development for new business requirements when the business requirements of the user change, and the technical problem of incapability of the existing low-code generation method to handle complex forms and logic.
Owner:TIANYU SOFTWARE

Adaptive torque compensation method, device and air conditioner

PendingCN122316159Areduce vibrationReduce manual debugging costs
This application provides an adaptive torque compensation method, device, and air conditioner, applied in the field of air conditioner control. The method includes: obtaining the speed difference between a given speed and an observed speed, and transforming the speed difference according to a preset conversion strategy based on the correspondence between the load torque and the speed difference to obtain a load torque pulsation observation value; calculating a load torque current feedforward compensation value based on the load torque pulsation observation value and the torque constant of the controlled object, and performing feedforward compensation on the load torque current based on the load torque current feedforward compensation value; wherein, the preset conversion strategy includes: performing a direct-axis quadrature-axis conversion on the speed difference. dq Transformation and qd Inverse transformation. The adaptive torque compensation method, device, and air conditioner provided in this application can automatically calculate the compensation value based on the operating data, which not only reduces the cost of manual debugging and shortens the development cycle, but also adapts to various load conditions and reduces pipeline vibration under different operating conditions.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

A rear subframe, rear suspension assembly and vehicle

The utility model discloses a kind of rear subframe, rear suspension assembly and car, comprising: main body frame, including front crossbeam, rear crossbeam, left side sill and right side sill, the front crossbeam, rear crossbeam, left side sill and right side sill are all made of hollow pipe material, the main body frame forms rear drive motor installation space between the front crossbeam and rear crossbeam, the middle part of left side sill and right side sill is curved upwards, the main body frame forms transmission shaft arrangement space below the curved position of left side sill and right side sill;Rear suspension mounting bracket is set in the main body frame.The utility model realizes the maximization of rear subframe universality of front drive and rear drive vehicle type, improves development efficiency, reduces rear subframe development cost, shortens development cycle.
Owner:GAC HONDA AUTOMOBILE CO LTD +1

A digital human muscle model pose generation method and device

The application relates to the technical field of digital human body models, in particular to a digital human body muscle model posture generation method and device. The method comprises the following steps: obtaining a tomographic image of an initial posture of a human body by using high-precision CT, and inversely modeling a geometric model of human body bones and muscles according to the tomographic image; calculating a first motion influence weight of each muscle node attached to a bone node according to each muscle node and the bone node; calculating a second motion influence weight of each muscle node according to the influence of adjacent muscle nodes on each muscle node; calculating a comprehensive weight of each muscle node according to the first motion influence weight and the second motion influence weight; and calculating a Laplace coordinate of a next moment of a current muscle node according to the comprehensive weight of the current muscle node, the position of the current muscle node and adjacent muscle nodes. The application generates a high-fidelity muscle geometric model by using a Laplace mesh deformation constraint technology.
Owner:CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD

Automatic production method and production system for pump

The invention belongs to the technical field of automatic production of pumps, and particularly relates to an automatic production method and system of a pump. An automatic production method of a pump comprises the following steps that S1, according to target performance, final optimization parameters of a basic impeller in a basic pump are calculated; s2, casting the special impeller according to the final optimization parameters; and S3, the specially-made impeller and other parts in the basic pump are assembled, and then the specially-made pump is obtained. Intelligent design is integrated into the production process, the development and production period of the special pump is shortened, and the overall cost of the special pump is reduced.
Owner:ZHEJIANG SCI-TECH UNIV

Charger assembly, vehicle charging method, and vehicle

PendingCN122645915Areduce usagesimple topologyElectrical batteryIn vehicle
The application provides a charger assembly, a vehicle charging method and a vehicle, and belongs to the technical field of automobiles. The core is that the on-off execution unit of the main circuit, namely, the positive electrode relay and the negative electrode relay, is accommodated and integrated in the vehicle-mounted charger assembly. On the physical connection, the passage from the battery positive electrode to the positive electrode of the charging pile through the positive electrode relay and the passage from the battery negative electrode to the negative electrode of the charging pile through the negative electrode relay are formed, so that the charging control logic is internalized in the charger assembly. Since the relays are no longer scattered in the battery or the external distribution box, but are uniformly designed and packaged as internal components of the charger assembly, the development of the external distribution box and the complex wire harness is avoided at the physical level, the number of external connectors and wire harnesses is reduced, the topology of the whole vehicle is effectively simplified, the development cycle of the whole vehicle is shortened, and the hardware cost of the whole vehicle is reduced.
Owner:CHERY AUTOMOBILE CO LTD

Additive manufacturing of integrated diffuser

The utility model provides additive manufacturing integrated expansion pipe, this integrated expansion pipe includes: expansion pipe upper cover, expansion pipe lower cover fixed connection with expansion pipe upper cover one side, form the passageway between expansion pipe upper cover and expansion pipe lower cover, expansion pipe entrance, the passageway intercommunication formed between expansion pipe upper cover and expansion pipe lower cover of expansion pipe entrance, the passageway other end inner wall between expansion pipe upper cover and expansion pipe lower cover installs first axial flow blade and second axial flow blade. Expansion pipe upper cover, expansion pipe lower cover, first axial flow blade, second axial flow blade and expansion pipe entrance are integrated structure, do not have any welding joint, and adopt metal additive manufacturing (3D printing) integrated molding, and the expansion pipe after molding only needs to the local processing of welding position, need not mould and control shape frock, fixture, can reduce manufacturing cost greatly, shorten development cycle, guarantee structural size stability.
Owner:ANHUI YINGLIU AVIATION TECH CO LTD

A UAV wing flutter analysis method, device, equipment and medium for a scheme design stage

This application discloses a method, apparatus, equipment, and medium for flutter analysis of UAV wings during the design phase, relating to the field of aircraft design. The method includes: generating a first component by calling a corresponding structural component simulation model from a finite element structure module library based on the shape parameters of the wing to be analyzed; constructing a skin finite element mesh model based on the first component; determining the installation position of a second component at the node positions of the skin finite element mesh model; generating the second component by calling a corresponding structural component simulation model from the finite element structure module library; installing the second component at the corresponding node positions of the skin finite element mesh model based on the installation position to obtain a target wing model; performing aerodynamic modeling using the skin finite element mesh model to obtain a flutter calculation file; performing flutter analysis based on the flutter calculation file and the target wing model; and optimizing the wing to be analyzed that has a flutter risk based on the flutter analysis results. This application shortens the UAV design cycle.
Owner:AVIC (CHENGDU) UAS CO LTD

Direct-current fan and serialization design method

PendingCN121959776AGuaranteed versatilityEnsure the initial universal electromagnetic structure is universalCAD customisation/personalisationGeometric CADMechanical engineeringElectromagnetic simulation
The invention relates to the technical field of direct-current fans, and discloses a direct-current fan and a serialization design method.According to the direct-current fan and the serialization design method, general electromagnetic structure design of a series of direct-current fans is conducted through electromagnetic simulation optimization, magnetic steel surface magnetism is analyzed through a static magnetic field to determine the magnetic steel machining magnetizing inspection standard, and a boss in a shaft sleeve is adopted for replacing a clamping ring for limiting; a low-cost and standardized direct-current fan series structure is formed, and only the required performance output corresponding to the number of turns of the winding needs to be adjusted, so that low-cost and quick-response series product development is realized.
Owner:AVIC SHENYANG XINGHUA AREO ELECTRIC APPLIANCE CO LTD

A six-degree-of-freedom underwater robot and a control system thereof

PendingCN122354739AOptimize hardware layoutOptimize layoutControl systemControl engineering
This invention discloses a six-degree-of-freedom underwater robot, comprising a frame, a propulsion system, a sensor monitoring system, and a controller. The propulsion system includes four horizontal vector thrusters and two vertical thrusters. The controller is communicatively connected to the propulsion system and the sensor monitoring system, and achieves independent, decoupled control of the propulsion system's six degrees of freedom based on multi-dimensional sensor data collected by the sensor monitoring system. This invention also discloses a corresponding six-degree-of-freedom underwater robot control system, including a host computer layer, a ROS core layer, a control layer, a drive layer, and a hardware terminal layer, all connected by communication. This solution optimizes the hardware layout, achieves independent, decoupled control of the six degrees of freedom, and improves underwater motion and hovering stability. This design features deep hardware and software synergy, improving underwater operational stability, shortening the development cycle, and enhancing operational safety, making it suitable for various scenarios such as underwater exploration, detection, and scientific research.