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34results about How to "Improve R&D Capabilities" patented technology

Blade body sectional surface design method for die forging blade

The invention relates to a blade body sectional surface design method for a die forging blade. The blade body sectional surface design of the die forging blade is carried out according to the following requirements that: (1) firstly, a mathematical model of a blade body sectional surface line is built according to the coordinate values of the blade part blade body sectional surface points; (2) the inscribed circle of the air inlet and exhaust edges of the blade body is obtained according to the mathematical model; (3) the edge radius or the sectional line is optimized so that the sectional surface is precise and smooth; and (4) a blade forging element mathematical model is built on the basis, and in addition, the allowance increase is carried out. The method has the advantages that the design process is simple, the parametric design can be realized, the blade body sectional surface is smooth, the design model precision is high, and the like. The fast conversion and output process of the process files or parts, forging elements and the like can be realized, simultaneously, the resource sharing and the digital manufacture can be simultaneously realized, the design and manufacture period can be greatly shortened, the development process is accelerated, and the production efficiency is improved.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Satellite power temperature control method

ActiveCN111338404AReduce total power fluctuationsImprove long-term stable running timeAuxillary controllers with auxillary heating devicesTemperature controlControl system
The invention discloses a method for enabling a power temperature control function by sending an instruction on the ground. The method comprises the steps: enabling a satellite to autonomously carry out periodic power temperature control management; enabling an on-board computer to set a power temperature control target value, and then count the opening or closing states of all the active thermalcontrol mechanisms incorporating the management object at the moment tx, and obtain the power, temperature control threshold upper and lower limits and temperature control point temperature of all thethermal control mechanisms which are powered on and started; setting the power of the i-th path of started thermal control mechanism at the tx moment as Qi, counting the sum of the thermal control power of m paths of thermal control mechanisms which are in a starting state at the tx moment, and comparing the sum with a power temperature control target value; starting or stopping an active thermalcontrol mechanism according to the comparison result, so that the thermal control power sum is equal to the power temperature control target value as much as possible; therefore, the problem of long-term large-range fluctuation of the satellite thermal control total power is solved, and the overall energy consumption of the satellite thermal control system can be reduced so as to meet the development requirement of the low-energy-consumption thermal control technology.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Method for producing acetone and butanol by co-fermenting cellobiose, pentaglucose and hexose

The invention provides a method for producing acetone and butanol by co-fermenting cellobiose, pentaglucose and hexose, which comprises the following steps: adding water, or supplementally adding pentaglucose and hexose, or supplementally adding starch materials into a hydrolysate, which is obtained by hydrolyzing straw and other lignocellulose materials, according to the total saccharide content in the hydrolysate to regulate the total saccharide content to 30-90g/L; after adding a nitrogen source or phosphorus source, regulating the pH value to 4.5-8.0, and sterilizing the materials by boiling to obtain boiled fermented liquor; cooling the boiled fermented liquor to 42 DEG C or below, inoculating the strain, and fermenting; and filtering the fermentation liquor, distilling, and rectifying to obtain the final products acetone, butanol and ethanol. The invention solves the technical problem in producing acetone and butanol by co-fermenting cellobiose, pentaglucose and hexose in a hydrolysate obtained by hydrolyzing lignocellulose, effectively enhances the conversion rate of saccharides obtained by hydrolyzing lignocellulose, increases the yield of the products acetone and butanol, and can lower the cost for producing acetone and butanol from straw to a large degree.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Combined synchronous generator base and machining method thereof

The invention discloses a combined synchronous generator base. The combined synchronous generator base comprises a front base, a middle base and a rear base; the front base comprises two front end plates, a front shell and two front bottom foot plates, the two sides of the lower ends of the front end plates extend outwards to form front supporting lug plates respectively, and the two front bottomfoot plates are fixed to the lower sides of the corresponding front supporting lug plates respectively; the middle base comprises two middle end plates and a cylinder, and a plurality of ribs are uniformly and fixedly arranged on the inner wall of the cylinder at intervals; and the rear base comprises two rear end plates, a rear shell and two rear bottom foot plates, the two sides of the lower endof each rear end plate extend outwards to form rear supporting lug plates respectively, and the two rear bottom foot plates are fixed to the lower sides of the corresponding rear supporting lug plates respectively. The combined synchronous generator base is simple in structure and convenient to install, the three bases can be assembled after being machined at the same time, machining can be completed through existing equipment without purchasing large equipment even for a high-power generator, machining is quite convenient, the machining period is short, the cost is greatly saved, and the research and development capacity of a company is improved.
Owner:ZHENJIANG ZHONGCHUAN XIANDAI GENERATING EQUIP CO LTD

Bottle embryo glue melting injection molding process

PendingCN108481713AExpand the range of blank supplyImprove R&D CapabilitiesDomestic articlesHollow articlesMetallurgyEmbryo
The invention discloses a bottle embryo glue melting injection molding process. The process comprises the following steps: step I, preparing a processing site and an injection molding machine, whereinthe humidity of the processing site is below 35%; step II, preparing a raw material which is a PET raw material, and drying the PET raw material to enable the moisture content thereof to be 0.03% orbelow, wherein, the temperature is between 150 DEG C and 165 DEG C during drying, and drying time is more than 6 hours; step III, putting the raw material into the injection molding machine to carry out glue melting and injection molding, wherein the glue melting temperature in the injection molding machine is 258-262 DEG C, the glue melting revolving speed is 150-160rpm, the glue melting pressureis 50-60bar, the injection molding cycle is 29-30s, and the cooling time is 8-9s; and step IV, taking out a bottle embryo by using a mechanical arm after completing mold injection. By new methods such as adjusting the processing site environment and improving the injection molding process, based on adopting a common injection molding machine, the intrinsic viscosity of a CSD bottle embryo is 0.80dL/g or above, so that the embryo supplying range of a corporate is enlarged, and the research and development capacity of the corporate is increased.
Owner:GUANG DONG XING LIAN PRECISE MACHINERY

Direct finite element mesh generation method based on tire structure characteristics

The invention provides a direct finite element mesh generation method based on tire structure characteristics, which solves the technical problems of low efficiency and high difficulty of existing tire finite element analysis, and mainly comprises the following steps: S1, obtaining a tire material distribution diagram wireframe model; s2, generating a two-dimensional surface model; s3, identifying a material region; s4, extracting feature edges and feature points; s5, generating discrete grid lines; s6, dispersing the two-dimensional plane model of the tire material distribution diagram; and S7, generating a tire finite element mesh model file. According to the method, the finite element model file is obtained by adopting a method of directly dispersing the geometric model of the tire material distribution diagram, the dependence on commercial finite element modeling software is eliminated, the data transmission path and the data loss are reduced, and the difficulty of establishing the tire finite element model is greatly reduced through a full-automatic finite element grid division process; the simulation analysis efficiency and the product research and development capability are improved, and the method can be widely applied to the technical field of simulation analysis.
Owner:PRINX CHENGSHAN (QINGDAO) IND RES & DESIGN CO LTD

Island coastal wetland waterfowl identification method, distribution query system and medium

The invention belongs to the technical field of marine ecological environment monitoring, and discloses an island coastal wetland waterfowl identification method, a distribution query system and a medium. A novel regional convolutional network model and a full convolutional network model are used for automatically detecting and positioning the whole target waterfowl and key parts thereof in the image; and carrying out probability modeling on the high-level semantic features by using a deep convolutional probabilistic neural network model, enhancing the expression of the image content, and identifying the target waterfowl based on the expressed image. The invention provides an island / coastal wetland important waterfowl variety investigation technology based on artificial intelligence, provides efficient video target tracking, machine learning and target image intelligent detection and identification technologies, and provides a waterfowl image online intelligent detection and identification system based on a computer vision technology. The types, the number, the habitat conditions, the living states and the like of important waterfowls in the target area are monitored and recognized.
Owner:NATIONAL MARINE ENVIRONMENTAL MONITORING CENTRE

Aircraft structural part design method based on machine learning

The invention discloses an aircraft structural part design method based on machine learning. The aircraft structural part design method comprises the following steps: 1) inputting design requirements and related parameters of an aircraft structural part required to be designed through a human-computer interaction interface; 2) carrying out feature analysis on the aircraft wing structural member through OpenCv auxiliary feature recognition; (3) similar instances are retrieved based on rule type selection and instance reasoning, instances with high similarity are selected, and on the basis of the instances, designers modify the instances according to requirements needing to be designed; 4) classifying the extracted features according to a k-nearest neighbor algorithm, and adding the features as training learning results into a training library of machine learning; and 5) storing the corrected instance and the design solution as new instances in an instance library as a new instance. According to the method, knowledge-model-case library data is expanded, the utilization rate of design parameters of the aircraft structural component is increased, the design quality and design efficiency of the aircraft structural component are improved, and the research and development capability is improved.
Owner:NORTHEASTERN UNIV

Atomic component of organic compound molecular model

PendingCN111899619AIntuitive representation of interaction forceEasy to understandEducational modelsElectron delocalizationOrganic compound
The invention discloses an atomic component of an organic compound molecular model. The atomic component is an assembly structure with a macroscopic concrete solid form, wherein the assembly structureis manufactured on the basis of a shape of a known form deduced by combining an octangle electron stable structure of a main group atom of an organic compound in an actual state and a hybrid orbit theory according to an actual atom and orbit size amplification design. The atomic component comprises an atomic solid and chemical bonds; the chemical bonds are manufactured and formed by distributingto the distance positions of all atoms to be cut off with the bond length parameters of the molecular group connection chemical bonds as the benchmark and through macroscopic concrete design; atoms are used for indicating the intensity of positive charges. According to the invention, besides single bonds, double bonds and triple bonds, forms of lone pair electrons and multi-center multi-electron delocalization bonds in the atoms can be displayed, interaction between atoms and molecules, steric hindrance, energy barrier and functional group distribution of the whole molecules can be visually displayed, the atomic component is more convenient for users to understand, and the guidance of the model is improved.
Owner:东莞市圣英电子科技有限公司

Blade body sectional surface design method for die forging blade

The invention relates to a blade body sectional surface design method for a die forging blade. The blade body sectional surface design of the die forging blade is carried out according to the following requirements that: (1) firstly, a mathematical model of a blade body sectional surface line is built according to the coordinate values of the blade part blade body sectional surface points; (2) the inscribed circle of the air inlet and exhaust edges of the blade body is obtained according to the mathematical model; (3) the edge radius or the sectional line is optimized so that the sectional surface is precise and smooth; and (4) a blade forging element mathematical model is built on the basis, and in addition, the allowance increase is carried out. The method has the advantages that the design process is simple, the parametric design can be realized, the blade body sectional surface is smooth, the design model precision is high, and the like. The fast conversion and output process of the process files or parts, forging elements and the like can be realized, simultaneously, the resource sharing and the digital manufacture can be simultaneously realized, the design and manufacture period can be greatly shortened, the development process is accelerated, and the production efficiency is improved.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Model-based inertial navigation system simulation platform and simulation method

The embodiment of the invention relates to the technical field of simulation, and discloses a model-based inertial navigation system simulation platform and simulation method. The simulation platform comprises a simulation host, a simulation target machine and an inertial integrated navigation component which are connected in sequence, the simulation host is used for building a system simulation model of the inertial navigation system and transmitting the system simulation model to the simulation target machine; the simulation target machine is used for generating an excitation signal after simulating and resolving the system simulation model, and sending the excitation signal to the inertial integrated navigation component; and the inertial integrated navigation component is used for generating a feedback signal according to the excitation signal and returning the feedback signal to the simulation target machine so as to realize the closed-loop test of the inertial integrated navigation component. According to the simulation platform provided by the embodiment of the invention, the development period of the inertial navigation system can be shortened, the development cost is reduced, the development efficiency is improved, and the system development capability is improved.
Owner:SHANGHAI KELIANG INFORMATION ENG

Natural language processing technology research and development method based on graph theory

The invention discloses a natural language processing technology research and development method based on a graph theory, and the research method comprises the following steps: 1, storing a natural conversation through a graph database according to a Chinese character sequence, and instantly forming character association statistics of an N-Gram model; 2, conversation sentences are processed according to a sentence segmentation rule, a connection chain of characters is formed, when the class of data reaches a certain magnitude, the occurrence frequency of adjacent Chinese characters on the same chain is counted, and N-Gram data is formed; and 3, forming a pyramid structure from Chinese characters to words to phrases to sentences based on the rules, tightly binding the rules and Chinese character data, forming a processing method of data, namely a processing unit, through a graph theory method, and carrying out intervention calibration on the formed rules through a semi-supervised learning method. By means of the mode, the relation between the elements of the natural language can be extracted more quickly and more visually, and the extracted natural language rule is more accurate, more concise and easier to maintain.
Owner:苏州英特雷真智能科技有限公司

A method for satellite power temperature control

ActiveCN111338404BReduce total power fluctuationsImprove long-term stable running timeAuxillary controllers with auxillary heating devicesTemperature controlLower limit
The invention discloses a function of enabling power temperature control by sending instructions from the ground, and the satellite independently performs periodic power temperature control management. The computer on the satellite first sets the power temperature control target value, and then counts all the active thermal control mechanisms included in the management objects. at t x The open or closed state at any time, and obtain the power of all thermal control mechanisms that are powered on, the upper and lower limits of the temperature control threshold and the temperature of the temperature control point, so that at t x The power of the thermal control mechanism that is turned on at the i-th road at any time is Q i , statistics at t x After the sum of the thermal control power of the m-channel thermal control mechanisms that are in the open state at all times, it will be compared with the power temperature control target value; according to the comparison result, the active thermal control mechanism is turned on or off, so that the total thermal control power and the power temperature control target value are as close as possible. may be equal; therefore, the present invention solves the problem of long-term and large-scale fluctuations in the total power of satellite thermal control, and can reduce the overall energy consumption of the satellite thermal control system to meet the development needs of low-energy thermal control technology.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Unified modeling method and system supporting reactor core multi-specialty computing software

The invention discloses a unified modeling method and system supporting reactor core multi-specialty computing software. The method comprises the steps that standardization processing is conducted on reactor core data; according to the reference relationship between the reactor core data and each software calculation model, association synchronization is performed on the standardized data and each software calculation model, and based on association synchronization, association data information between the standardized data and the software calculation models is obtained; data information needed by reactor core calculation software corresponding to any software calculation model is obtained from the standardized data, an input file of the software calculation model in the reactor core calculation software is formed, the reactor core calculation software executes calculation according to the input file, and the real-time state of reactor core calculation software operation calculation is synchronously displayed. According to the method, unified centralized management and unified centralized visual display of various software calculation models are realized, the modeling accuracy and modeling efficiency of the reactor core calculation model are improved, and the development efficiency of a nuclear reactor is further improved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Decomposition test method for sliding resistance of a passenger car

ActiveCN108168752BMeet the requirements of the resistance testFind resistance problems quicklyVehicle testingApparatus for force/torque/work measurementElectric machineryRolling chassis
The invention provides a vehicle coasting resistance decomposition test method for a passenger vehicle. The method includes the following steps of: A, vehicle and transmission system parameter preparation; step B, road coasting testing; step C, chassis dynamometer testing; step D, 4-wheel-drive five-motor testing; and step E, two-wheel-drive three-motor testing. The step D further includes the following steps that: step d1, the rolling resistance of tires is calculated according to test results of the step C and the step D; and step d2, brake caliper drag force and wheel hub bearing force testing is performed. The vehicle coasting resistance decomposition test method for the passenger vehicle of the invention can be applied to the research and development verification of a vehicle including the resistance comparative analysis of quality competing vehicle models, the resistance decomposition and transmission system part selection of development vehicle models and the resistance test aswell as optimization and improvement of mass-produced vehicle models. The method has the advantages of high universality, high accuracy, high repeatability and high interchangeability, and can meet the requirements of the resistance test of a transmission system.
Owner:CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1

Test platform and system for research and development of electrical properties of insulating adhesives

The invention provides a test platform and system for research and development of the electrical performance of an insulating adhesive, and relates to the field of transformers. The test platform includes high voltage generating equipment, transformer oil tank equipment for testing, oil processing equipment and an oil storage tank, the high voltage generating equipment, the transformer oil tank equipment for testing, the oil processing equipment and the oil storage tank are connected successively, the transformer oil tank equipment for testing includes a high voltage sleeve and a transformer oil tank, the transformer oil tank is provided with a test electrode, one end of the high voltage sleeve is connected with the high voltage generating equipment, the test electrode includes a high voltage side electrode, a low voltage side electrode and an insulating material arranged between the high voltage side electrode and the low voltage side electrode, the insulating material includes a paperboard layer and an adhesive layer, the high voltage side electrode is connected with the other end of the high voltage sleeve, and low voltage side electrode is grounded. The problems that the development speed of the research and development field of the performances of transformer insulating material adhesives existing in the prior art is slow and research and development demands for the performances of insulating material adhesives of the transformer field cannot be met are solved, and improvement of the research and development efficiency of the electrical performance of the insulating adhesive is facilitated.
Owner:常州市英中电气有限公司

Energy consumption measuring system and measuring method for electric vehicle

The invention discloses an energy consumption measuring system for an electric vehicle. The energy consumption measuring system for the electric vehicle comprises a battery measuring module, a vehicleweight module, a motor measuring module, a motor controller measuring module, a VCU measuring module and a calculating module, wherein, the battery measuring module is used for measuring current andvoltage at the output end of a battery, the motor measuring module is used for measuring the current and the voltage at the input end of a motor, the motor controller measuring module is used for measuring the current and the voltage at the input end of an electric motor controller, the VCU measuring module is used for measuring rotating speed and torque of the motor when driving, the vehicle weight module is used for simulating the measurement results of the battery measuring module, the motor measuring module, the motor controller measuring module and the VCU measuring module by carrying outweight balancing at different positions of the vehicle. The energy consumption measuring system and measuring method for the electric vehicle are closer to the actual use state of the electric vehicle, so as to make a more effective analysis on energy consumption and the efficiency of the whole vehicle of the electric vehicle and ensure that the data accuracy and authenticity of the measurement system.
Owner:SHANDONG JIAOTONG UNIV

Power construction industry information interaction system

The invention is applicable to the field of computers, and provides a power construction industry information interaction system, which is characterized in that an enterprise information acquisition module is arranged in the system and used for acquiring real-time dynamic information of each enterprise, and information of more power enterprises with strength is stored for calling at any time; the bid invitation project acquisition module is used for acquiring power construction bid invitation projects published by a cloud network and acquiring various power construction bid invitation information published on the market in real time; and a bid invitation project analysis module, an enterprise collection module, a project amount sending module, a claim information receiving module and a distribution scheme output module are also arranged, so that the acquired bid invitation information can be sent to each small-sized power enterprise, a plurality of small-sized power enterprises are integrated, resources are integrated, and the efficiency is improved. According to the invention, a plurality of small power enterprises can jointly undertake a large project, so that the pressure of the large and powerful enterprises can be conveniently reduced, the construction of the power industry is promoted, and the cultivation of more power enterprises with strength is facilitated.
Owner:ZHONGSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID

System and method for automatically generating and evaluating schemes based on knowledge engineering

The invention discloses a knowledge-engineering-based automatic scheme generation and evaluation system. The automatic scheme generation and evaluation system comprises a project management subsystem, a demand management subsystem, a product database subsystem, a collaborative design subsystem and an electronic product design technology platform, wherein the project management subsystem is in charge of providing solving ideas and tools; the demand management subsystem is used for decomposing the product design demand, converting into task indicators and multi-level task sequences, realizing dependence mapping and providing real-time monitoring of the indicators; the product database subsystem is used for managing design data and setting data standards and regulations; the collaborative design subsystem plays the role of a bridge; the electronic product design technology platform is in charge of generalizing and managing typical data, design methods and digital prototype models of all products and pushing information to the collaborative design subsystem. A method comprises the steps of knowledge extraction and classification, professional knowledge base setting, knowledge-engineering-based platform construction and automatic design scheme generation and evaluation. According to the invention, knowledge engineering is introduced into the electronic product design, so that the reuse rate of knowledge and other resources is effectively improved, automatic generation and evaluation of product schemes are realized, the product research and development time is shortened and the intelligence degree is high.
Owner:SICHUAN UNIV +1
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