813results about How to "Flexible design" patented technology

The invention relates to the technical field of dispatching automation, and discloses a dispatching automation system application state management method which comprises the following steps: dynamic task state management: monitoring dynamic state indexes of various computing tasks in real time; according to different characteristics of task types, making differentiated priority management strategies; the task priority is dynamically adjusted, and it is ensured that key tasks are preferentially and efficiently executed; dynamic resource state management: continuously monitoring dynamic state indexes of various computing resources, wherein the dynamic state indexes comprise utilization rates and load conditions; dynamically adjusting a resource allocation scheme according to the resource state; dynamically optimizing resource allocation to ensure that the overall resource utilization rate of the system is continuously improved; and optimizing a self-adaptive scheduling strategy: introducing a self-adaptive scheduling algorithm based on reinforcement learning. According to the application state management method of the dispatching automation system, dynamic state management is adopted, a traditional static dispatching mode is abandoned, and the method can better adapt to a complex and changeable computing environment.

The invention discloses an intelligent unmanned rescue boat, a rescue control method and rescue control equipment. The rescue boat comprises a boat body, a power system, a multi-sensor system, a communication system, a processor and a memory. The multi-sensor system comprises a visual sensor, a thermal imaging sensor, a sonar sensor, a positioning sensor and a meteorological sensor. The communication system is used for exchanging data with external equipment; the processor is connected with the multi-sensor system and the communication system; the memory is connected with the processor and stores a computer program; and the processor executes the program in the memory, controls the multi-sensor system to scan a surrounding water area, identifies and positions at least one drowning person, determines an obstacle avoidance demand, generates an optimal rescue path, and controls the power system to move the ship body according to the optimal path to implement rescue. According to the invention, rescue tasks can be efficiently and accurately executed under complex sea conditions, and the success rate and efficiency of sea rescue are improved.

The invention provides a road tunnel traffic incident real-time prediction method based on multi-model fusion, and the method comprises the steps: S1, collecting traffic data from a plurality of data sources, carrying out the data preprocessing of the traffic data, dividing the processed data into a training set, a verification set and a test set according to a specific proportion, carrying out normalization processing on data of the training set and the test set; s2, designing and training the processed data to obtain M models; and S3, constructing a stack model from the M models obtained in the S2 by adopting a stack ensemble learning strategy, and inputting the prediction probability of each model as feature input into the stack model for prediction to obtain a final prediction result. The problems that the prediction accuracy and reliability are insufficient due to the fact that complex traffic data features are difficult to fully capture in the prior art, the characteristics of various models cannot be effectively fused, the advantages of an integrated model cannot be fully played, and the prediction effect is uneven in hierarchy are solved.

The embodiment of the invention provides a differential Hall current sensor and a manufacturing method thereof, and belongs to the technical field of semiconductors. The differential Hall current sensor includes: a substrate; the magnet yoke is provided with a semi-enclosed structure formed by a bottom surface and two side surfaces positioned on the same side of the bottom surface, and the bottom surface is bonded on the substrate; the current bar is placed in the cavity of the semi-surrounding structure and allows two end parts of the current bar to extend out of the semi-surrounding structure; the insulating layer is arranged on the upper surface of the current bar and located in the cavity; the at least two Hall elements are symmetrically arranged on the two sides of the upper surface of the insulating layer in the current direction; the at least two groups of magnetism gathering blocks are attached to the magnetic induction surfaces of the at least two Hall elements; at least two groups of magnetism gathering blocks and the magnet yoke form a conducting magnetic circuit, and the magnetic field component of the current magnetic field in the parallel direction of the magnetic induction surface is deflected into the magnetic field component in the vertical direction. According to the differential Hall current sensor, the Hall perceptible magnetic field intensity is enhanced through the conduction magnetic circuit of the gathered current magnetic field, and the measurement sensitivity is improved.

The invention provides a spliced frame structure for a flat plate type satellite, and belongs to the technical field of satellite structures. The problems that an existing satellite frame is high in production cost and difficult to produce in batches are solved. The beam unit comprises an X-axis beam unit, a Y-axis beam unit and an inclined beam unit, the X-axis beam unit and the Y-axis beam unit are arranged in an orthogonal mode, an included angle is formed between the inclined beam unit and the X-axis beam unit, the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam, and the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam. The Y-axis beam unit comprises a first Y-axis beam, a second Y-axis beam and a third Y-axis beam, the oblique beam unit comprises a first oblique beam and a second oblique beam, and the splicing unit comprises a Y-axis separation mechanism connector and an X-axis separation mechanism connector. The frame structure is mainly used for a flat plate type satellite.

The invention relates to a preparation method of a multi-coated lithium-rich manganese-based battery positive electrode material and the positive electrode material, and belongs to the technical field of battery positive electrode materials. The multi-coated lithium-rich manganese-based material is prepared by adopting a wet chemical method. The defects of an existing coated modified lithium-rich manganese-based positive electrode material in the aspects of relieving transition metal dissolution, inhibiting surface and interface side reactions and improving ion transmission performance synergism are overcome; the invention provides a multi-coated lithium-rich manganese-based material formed by an inert oxide, a fast ion conductor and high-stability phosphate and a preparation method of the multi-coated lithium-rich manganese-based material. According to the invention, the generation of side reactions on the surface and the interface is inhibited, the electrolyte decomposition is reduced, the cycling stability is enhanced, and the discontinuous island-shaped coating discontinuously forms a protective layer on the surface of the material, and a plurality of uncovered areas are left, so that the high lithium ion transmission efficiency can be maintained, and the charging and discharging performance of the battery is improved.

The invention relates to the field of appearance defect detection machines, in particular to an intelligent terminal key appearance defect detection machine which comprises a main core module and an appearance defect detection module. Each appearance detection module comprises a turntable, a plurality of bearing seats and a plurality of detection camera devices which are arranged on one sides of the bearing seats and are used for detecting different visual angles of products; all the bearing seats are borne by the rotary table, all the bearing seats are arranged in a circle around the edge of the rotary table, a plurality of clamps used for clamping products are arranged on each bearing seat, and each clamp is rotationally arranged on the corresponding bearing seat; the first manipulator is used for transferring the product on the feeding module to the clamp on the bearing seat; through highly-automatic feeding, detecting, overturning and discharging processes, manual intervention is remarkably reduced, and the detecting speed and the production efficiency are improved. Compared with a traditional scheme, appearance defect detection of a large number of products can be completed more quickly.

According to the energy storage coupling heat pump steam generation method and system, the mode that the heat pump device and the energy storage device cooperatively operate is adopted, and efficient and economical steam supply is achieved. The method comprises the steps that high-temperature water is prepared and stored in the off-peak electricity period through the heat pump device, and the high-temperature water is further heated through the energy storage device to generate superheated steam for a user to use. The energy storage device comprises a plurality of energy storage modules, and a heat exchange pipeline of the energy storage device can be switched between a parallel connection mode and a series connection mode through switching, so that deep heat release and flexible regulation and control are achieved. According to the method, the energy storage capacity and heat release power of the energy storage module are dynamically adjusted, enthalpy increment distribution of the heat pump and the energy storage device is optimized in combination with load prediction, and diversified steam requirements are met. And meanwhile, preheating or dynamic supplement is conducted on the energy storage module through the heat pump device, waste heat recovery is achieved, and the energy efficiency is improved. According to the method, the operation cost is remarkably reduced, the capacity of the system for adapting to load fluctuation is enhanced, and the method is suitable for industrial steam use scenes and has the advantages of being efficient, stable and flexible.

The invention relates to a permanent magnet synchronous motor design method based on a multi-objective optimization algorithm, and the method achieves the efficient design and optimization of a permanent magnet synchronous motor through the combination of finite element simulation, multi-physical field coupling analysis, neural network performance prediction, and a hybrid optimization algorithm of a genetic algorithm and particle swarm optimization. The method comprises the following steps: determining a plurality of design targets according to an application scene of a motor, selecting key design variables, performing data cleaning and normalization processing, performing electromagnetic field, thermal field and mechanical field simulation by using a multi-physics field coupled finite element model, predicting the performance of the motor by combining LSTM and Transform neural network models, expanding a training data set through a data enhancement technology, and performing data enhancement on the motor. Finally, a hybrid optimization algorithm combining a genetic algorithm and particle swarm optimization is adopted to carry out global optimization and adaptive adjustment of design parameters, and a Pareto optimal leading edge is utilized to find out an equilibrium solution between design targets, so that the accuracy and efficiency of motor design are improved, and the method is suitable for various motor design scenes.

The invention relates to a tab-free battery cell, a preparation method thereof and a solid-state battery, the tab-free battery cell comprises a tab-free battery cell unit, and the tab-free battery cell unit comprises a tab-free battery cell assembly and a conductive buffer plate which are stacked; the tab-free battery cell assembly comprises a first current collector, a positive plate, an electrolyte plate, a negative plate and a second current collector which are stacked in sequence; the first current collector and the second current collector are lug-free current collectors; the conductive buffer sheet comprises a conductor and a buffer area; the buffer region comprises an insulating substance; the electric conductor comprises a built-in conductor and an external conductor; the external conductor at least partially extends out of the edge of the conductive buffer sheet; the conductor is of a sheet-shaped structure, and the buffer area surrounds the periphery of the built-in conductor; and / or the conductor is of a net structure, and the insulating substance is filled in at least part of pores of the net structure. The influence of edge shearing force on the tabs does not need to be considered in the battery cell pressing process, and the battery design is more flexible when the battery cell units without the tabs are stacked into the solid-state battery in the later period.

The invention discloses a sound production device and electronic equipment, and relates to the technical field of electro-acoustic transformation.The sound production device comprises a shell, a magnetic circuit system and a vibration system, a common magnetic part of the magnetic circuit system is located on the outer side of a center magnetic part and is spaced from the center magnetic part to form a first magnetic gap, and side magnetic parts are located on the outer side of the common magnetic part and are spaced from the center magnetic part to form a second magnetic gap; an inner ring hole is formed in the center of a vibrating diaphragm of the vibrating system, the inner periphery of the vibrating diaphragm is connected with the magnetic circuit system, the first voice coil corresponds to the first magnetic gap, the second voice coil corresponds to the second magnetic gap, and the first voice coil and the second voice coil are connected to the vibrating diaphragm through a framework. According to the sound production device, the utilization rate of the magnetic circuit system is effectively improved, the BL value is improved, the loudness and sensitivity of the sound production device are improved, the first voice coil and the second voice coil are connected to the vibrating diaphragm through the framework, the positions of the first voice coil and the second voice coil in the magnetic circuit system are convenient to adjust, and the design of the magnetic circuit system is more flexible.

The invention discloses a thrombolysis prediction method based on deep learning and multi-modal fusion, and belongs to the technical field of thrombolysis prediction, and the method comprises the steps: S1, collecting an MRI image of a patient with ischemic cerebral apoplexy, and constructing a cerebral apoplexy automatic segmentation model; s2, carrying out image registration; s3, lesion segmentation; and S4, thrombolysis prediction. According to the cerebral apoplexy automatic segmentation model based on the gating parallel Mama network, the long-distance dependency relationship in the image can be effectively captured, ischemic cerebral apoplexy lesions can be rapidly and accurately segmented, and the lesion identification efficiency and accuracy are greatly improved; according to the algorithm provided by the invention, the linear time complexity is realized, the computing resource consumption is greatly reduced, and the bottleneck of the prior art is broken through; according to the cerebral apoplexy thrombolysis prediction model based on the multi-modal data, scientific automatic decision support is provided for judging whether the patient is suitable for thrombolysis treatment or not, and the quality and safety of medical decision are improved.

The invention relates to the technical field of data processing, and discloses a BIM-driven steel structure collaborative design method, device and equipment. The method comprises the steps of performing parameterization processing on building information data to obtain intelligent BIM data; performing multidisciplinary data exchange processing on the intelligent BIM data to obtain collaborative design data; performing intelligent structure analysis processing on structure information in the collaborative design data to obtain optimized structure data; performing adaptive component design processing on the optimized structure data to obtain customized component data; performing virtual construction simulation processing on the customized component data to obtain construction optimization data; intelligent operation and maintenance processing is carried out on the construction optimization data and the actual construction data, full-life-cycle management data are obtained, and the full-life-cycle management data comprise real-time monitoring data, performance evaluation results and predictive maintenance suggestions. The efficiency and accuracy of steel structure collaborative design based on BIM driving are improved.

The invention discloses a Neo4j-based metadata blood relationship analysis method and device, equipment and a medium, and relates to the technical field of computers, and the method comprises the following steps: carrying out relationship graph construction on metadata of an obtained data source in a Neo4j library according to metadata entity information, entity attribute information and a metadata association relationship of a preset blood relationship graph, obtaining a metadata blood relationship graph; when a data analysis task is obtained, querying an association node and a target edge associated with a target node where target metadata is located in a metadata blood relationship graph of a Neo4j library through target metadata entity attribute information of a to-be-analyzed metadata blood relationship in the data analysis task and a preset query statement; and analyzing a transmission process and a conversion process of the target metadata corresponding to the target node through the association node and the target edge. The efficiency of metadata blood relationship analysis is improved, complex data relationship calculation is simplified, the increase of data scales and data source types can be coped with, and expansibility is achieved.

According to the thin-layer sound absorption superstructure composite acoustic enclosure and the using method, the acoustic enclosure is composed of the cover plate, the conformal frame, the thin-layer sound absorption superstructures and the porous sound absorption materials, the variety of the thin-layer sound absorption superstructures is not limited to one, and the broadband noise reduction effect can be achieved through the parallel superposition design of the thin-layer sound absorption superstructures and the porous sound absorption materials. Wherein the thin-layer sound absorption superstructure can absorb noise in different frequency ranges of medium and low frequency bands, the porous sound absorption material can absorb noise in medium and high frequency bands, and the working bandwidth of the composite acoustic shield after parallel connection and superposition can cover the low, medium and high wide frequency bands. The thin-layer sound absorption superstructure composite acoustic shield further has the advantages of being high in space utilization rate, high in space adaptability, small in thickness, low in surface density and high in material replaceability. Compared with an existing sound insulation cover, on the premise that the thickness is small and the surface density is low, the working frequency band is wider, the sound insulation effect is better, and the sound insulation cover has wide application prospects in noise control of various mechanical and electrical products.

The invention relates to the technical field of mechanical engineering, in particular to a multi-condition response speed reducer box variable density topological optimization method which comprises the following steps: S1, constructing a three-dimensional speed reducer box finite element model; s2, obtaining a plurality of stress distribution nephograms of the speed reducer box body; s3, carrying out topological optimization on the plurality of stress distribution nephograms; s4, the wall thickness of the speed reducer box body is adjusted, and the three-dimensional speed reducer box body finite element model is updated; and S5, verifying the updated finite element model of the three-dimensional speed reducer box body, determining that the speed reducer box body variable density topological optimization is successful when the verification is passed, and otherwise, repeating the step S3 and the step S4. According to the method, stress distribution under different installation modes and working conditions is considered, it is ensured that the design scheme can keep good performance in various environments, and meanwhile the design can better adapt to complex working conditions through the comprehensive stress distribution cloud atlas.

The invention relates to the technical field of medical apparatus and instruments, in particular to a scar rehabilitation therapeutic apparatus for realizing treatment based on AI evaluation analysis, which comprises a host, an AI evaluation system and a magnetic treatment component, and is characterized in that the host comprises a shell and an electric control system; the AI evaluation system comprises a data acquisition module and a treatment planning module; the data acquisition module is used for acquiring human body scar area information, the treatment planning module identifies data acquired by the data acquisition module, scar information is obtained after the data are identified and processed, and a scar rehabilitation treatment scheme is planned according to the scar information; the electric control system controls the magnetic treatment assembly to perform scar rehabilitation treatment according to the scar rehabilitation treatment scheme; the magnetic treatment assembly comprises a magnetic fixing device, a magnetic driving device and a magnetic patch; the magnetic patch is attached to a human body scar area, and the magnetic driving device executes a scar rehabilitation treatment scheme under the control of the electric control system, so that the magnetic patch rotates and moves.

The utility model discloses an annular rechargeable parking layer, which comprises more than one transfer connection parking space, an annular frame body, an annular turntable and a rechargeable parking space, the transfer connection parking space is arranged around an elevator, the annular frame body surrounds the transfer connection parking space, the annular turntable is rotatably connected with the annular frame body, and the rechargeable parking space is arranged on the annular turntable. The annular rotating disc comprises a plurality of chargeable parking spaces. The beneficial effects of the utility model are that: can be integrated with current next car garage, satisfy increasing electric car parking charging demand, design is flexible, the degree of modularization is high.

The invention provides an engine test verification system and method based on a virtual rack, and belongs to the field of engine testing. A control upper computer is used for acquiring a control instruction, controlling the virtual rack to start, setting the input quantity and initial test conditions of the virtual rack, and receiving data fed back by the virtual rack in the running state of the virtual rack; the test upper computer is used for calibrating test parameters of the ECU and receiving, displaying and storing real-time data of the ECU when a test is executed; the ECU receives the control quantity of the actuator fed back by the virtual rack and the test parameters sensed by the sensor, compares the control quantity and the test parameters with a target value required by the engine under the current test working condition, and controls the control quantity of the actuator of the virtual rack through a closed loop; according to the invention, the simulation of the engine is carried out by using the virtual rack, the test of the engine on the real rack is effectively replaced, and the flexibility and convenience of the test are improved.

The invention relates to the technical field of non-standard automation, in particular to full-automatic lock catch feeding, injection molding and transferring equipment which comprises a feeding mechanism, a plate placing mechanism, a material taking mechanism, an injection molding mechanism and a discharging and transferring mechanism. The feeding mechanism comprises a fixed shaft feeding assembly and a shaft sleeve feeding assembly, the fixed shaft feeding assembly is used for locking fixed shaft feeding, and the shaft sleeve feeding assembly is used for locking shaft sleeve feeding; the wobble plate mechanism comprises a wobble plate mechanical arm, a wobble plate driving assembly and a wobble plate material frame, the wobble plate mechanical arm is used for grabbing the locking fixed shaft and the locking shaft sleeve on the fixed shaft feeding assembly and the shaft sleeve feeding assembly respectively and placing the locking fixed shaft and the locking shaft sleeve on the wobble plate material frame for positioning and placing, and the wobble plate driving assembly is used for driving the wobble plate material frame to rotate. The placed locking fixing shaft and the locking shaft sleeve face the injection molding mechanism; full-automatic lock catch feeding, injection molding, taking and transferring are achieved, manpower and material resources are saved, and the production efficiency is improved.

The invention relates to the technical field of structural engineering, in particular to a sliding energy consumption node between an added elevator module and an existing structure and a building. The sliding energy consumption node between the added elevator module and the existing structure comprises a connecting beam, a T-shaped plate and a connecting plate; the connecting plate comprises a bottom plate and a side plate which are integrally connected; the bottom plate is perpendicular to the side plates; the T-shaped plate comprises an upper plate and a lower plate which are integrally connected; the upper plate and the lower plate are vertically arranged; a first connecting hole and a second connecting hole are respectively formed in opposite positions of the lower plate and the side plate; a pin shaft penetrates through the first connecting hole and the second connecting hole to connect the connecting plate with the T-shaped plate; a third connecting hole is formed in the upper plate; and fourth connecting holes are formed in the connecting beams. The sliding energy dissipation nodes do not slide under the action of wind loads and small earthquake loads, and the additionally-installed elevator structure and the original structure can work cooperatively in the horizontal direction.

The invention discloses an FPGA prototype verification platform based on an RISC-V chip. The FPGA prototype verification platform comprises the RISC-V chip, an RISC-V processor core is instantiated in FPGA logic resources, and the RISC-V processor core realizes a standard RISC-V instruction set, supports an RV32I / RV64I basic integer instruction set, M standard multiplication and division extension, A atom operation extension and F single precision floating point extension; the off-chip memory is used for providing code and data storage for the RISC-V chip by using FPGA off-chip storage resources; the RISC-V chip is connected with the off-chip memory through the memory controller and the bus interface; the external interface circuit realizes that an I / O interface is externally connected with a sensor and an actuator, and the application range of the RISC-V chip is expanded; the programmable logic circuit constructs various hardware acceleration units according to needs by utilizing programmable logic resources of the FPGA and is interconnected with the RISC-V chip through a standard AXI bus or a custom bus, and the hardware acceleration units cooperate with the RISC-V chip to work, so that the system performance is improved; and the software and hardware collaboration system provides a software development environment and a hardware development suite.

The invention discloses a multi-dimensional monitoring and intelligent fire extinguishing module linkage system for transformer fire. The system comprises a fire early warning system, a fire detection system, a mobile track system, an intelligent fire extinguishing module and an interactive communication system. The fire early warning system judges the overload risk by collecting the real-time operation data of the transformer, and sends out an early warning signal through the early warning unit when detecting that the load fluctuation exceeds a preset threshold value. The fire detection system monitors the environment in the transformer room in real time, positions the abnormal signal generation position, dispatches the multiple intelligent fire extinguishing modules, and cools temperature abnormal points or starts fire extinguishing measures in a centralized mode through the transformer surface moving track system. The intelligent fire extinguishing module and the multi-dimensional monitoring system are interconnected in real time, and the fire extinguishing posture is dynamically adjusted. Through real-time monitoring, accurate positioning, flexible regulation and control and real-time interconnection, early-stage temperature and fire abnormity of the transformer substation can be found in time, and a reliable intelligent protection scheme is provided for fire extinguishing.

The invention discloses a document travel scene data transaction secure storage method and a medium. The method comprises the following steps: collecting necessary data of a data provider through a client of a document travel transaction platform; encrypting the sensitive data, and uploading the encrypted sensitive data, the privacy preference data of the data provider and the information of the data visitor to a server side of the text travel transaction platform; packaging the encrypted sensitive data, the privacy preference data and the data visitor information into a structured privacy tuple; storing the privacy tuple in a relational database, and storing the hash value of the privacy tuple in a block chain; configuring an access control strategy, and limiting that only authorized users or system nodes can access and operate data stored in the relational database; the access request of the privacy tuple data is verified and authorized through the block chain platform, and all data accesses are ensured to conform to the privacy preference of a data provider. According to the invention, the security of the user sensitive data in the text travel scene data transaction can be effectively improved.

The invention provides a textile fabric anti-ultraviolet performance detection device, and relates to the technical field of fabric detection, the textile fabric anti-ultraviolet performance detection device comprises an unwinding mechanism, a first traversing mechanism, a second traversing mechanism and an adjusting traversing mechanism. The unwinding mechanism is used for unwinding and winding the to-be-detected cloth; cloth horizontally penetrates through the first transverse penetrating mechanism and the second transverse penetrating mechanism. The adjusting and penetrating mechanism has a first state and a second state which can be switched, so that the cloth can horizontally extend in the first state, and a downward arc-shaped recess and an upward arc-shaped bulge are formed in the second state. The linear ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the cloth in the horizontal state; and the arc ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the arc part of the cloth. The method can accurately detect the ultraviolet permeability of the fabric in different forms, is suitable for quality evaluation of anti-ultraviolet functional textiles, and reduces the quality defects after the textile fabric leaves a factory.

The invention relates to a preparation method of yarn and velvet triboelectric fabric and a friction nanometer generator, and belongs to the technical field of intelligent textile materials. The friction nanometer generator comprises a positive friction unit and a negative friction unit; at least one of the positive friction unit and the negative friction unit comprises the velvet friction electric fabric. According to the invention, more technical possibilities can be provided for the development of flexible and diversified friction nano-generators, and the application prospects of the friction nano-generators in the fields of clothing, wearable equipment and the like are greatly expanded.

The invention discloses a protein de novo reverse design method and system based on a spectrum structure-activity relationship, and the method comprises the steps: obtaining a data set which comprises protein structure feature data, protein simulation spectrum data and protein-ligand interaction data; establishing a multi-task neural network model, training the multi-task neural network model by using the data set, inputting protein simulation spectrum data into the trained multi-task neural network model, and simultaneously obtaining a distance matrix between protein skeleton atoms and the number of protein amino acids; integrating the distance matrix between protein skeleton atoms and the number of protein amino acids to obtain a final protein distance matrix; obtaining an initial protein PDB structure according to the final protein distance matrix; optimizing the initial protein PDB structure by using an SCUBA-D protein structure optimization model to obtain a full-atom protein structure; proteinMPNN is applied, a full-atom protein structure is used as input, and a plurality of amino acid sequences are obtained. The development period of the medicine can be accelerated.

The invention relates to the technical field of vibration and noise reduction, in particular to a thickness-enhanced spiral acoustic black hole structure and an annular rib cylindrical shell, which comprise a spiral curling part and a mounting piece for mounting the spiral curling part on a structure to be subjected to vibration reduction, the spiral curling part comprises an extension thickness enhancing part, a damping part and a one-dimensional acoustic black hole batten with the gradually-changed thickness, the damping part is tightly attached to the inner ring wall of the extension thickness enhancing part, and the inner end of the damping part is flush with the inner end of the extension thickness enhancing part; the outer end of the extending and thickness-enhancing part is connected with the end part of the mounting piece, a one-dimensional acoustic black hole batten is tightly attached to the inner ring wall of the extending and thickness-enhancing part between the outer end of the damping part and the end part of the mounting piece, and the thicker end of the one-dimensional acoustic black hole batten is connected with the end part of the mounting piece; and the thinner end of the one-dimensional acoustic black hole batten is connected with the damping part. According to the invention, low-frequency vibration reduction and broadband vibration reduction can be realized at the same time under the condition of relatively low space occupancy.

The invention relates to a heat dissipation surface expansion device based on a high-thermal-conductivity graphene film. The heat dissipation surface expansion device comprises a satellite body, single-machine equipment, a graphene film, a heat pipe and a bracket, the stand-alone device is installed inside the satellite body, and the graphene film and the support are installed outside the satellite body; the graphene film is connected with the satellite body and the support, and at least one heat pipe is connected to the graphene film. The device has the advantages that heat on a single machine is firstly transmitted to the satellite mounting plate and the graphite film, the heat dissipation surface is expanded through the graphene film, the heat conduction effect is enhanced through the heat pipe, and finally the heat is radiated to a cold space through the graphene film, so that the problem of insufficient heat dissipation capability of a satellite is solved; the whole set of device is high in structural reliability, the whole set of device product is not provided with movable parts, passive thermal control measures are adopted, and the problems of starting, stopping and failure of a system do not exist; the problem of heat dissipation of high-heat-consumption single-machine equipment under the conditions of satellite envelope and insufficient weight is solved.