33 results about "Aging factor" patented technology

The invention provides a bridge performance evaluation and life prediction method based on big data analysis, and relates to the technical field of bridge preventive maintenance in highway engineering, and the method comprises the steps: obtaining three-dimensional scanning data of an old bridge and a new bridge under a common service condition, and combining with complex service conditions such as dynamic load, temperature difference, creep shrinkage, etc. And the dynamic response of the connection part in an actual use environment can be accurately simulated and evaluated. Especially under the condition of common service of new and old bridges, the degradation and damage of the connection part are particularly significant, and by combining with a big data technology, the progress of material aging is tracked in real time, and possible hidden damage of the connection part is helped to be predicted. By constructing the aging factor, the damage index and the corrosion index and associating the aging factor, the damage index and the corrosion index with the connection coordination index graph, a specific rigidity loss factor can be provided for each connection unit, the performance degradation degree of the bridge connection part is reflected, and a scientific basis is provided for subsequent reinforcement and maintenance strategies.

The invention discloses a performance detection method and system for ultra-high performance concrete, particularly relates to the technical field of building material performance detection, and aims to solve the problem of strength test discreteness caused by neglecting of an aging effect after high-temperature maintenance in an existing detection method. The method comprises the following steps: recording a first time point when a test piece is cooled at room temperature and a second time point when a press machine is loaded, and generating a comprehensive aging factor in combination with double quantitative analysis of a fiber pull-out fragment proportion and a crack fractal dimension in a damage process image; matching a strength correction coefficient from a preset table according to the aging factor, and dynamically calibrating a first compressive strength test result; accurate association between the aging damage mechanism and the macroscopic strength is achieved, and the reliability evaluation precision of the ultra-high performance concrete in major engineering is remarkably improved.

The invention relates to a cable insulation aging evaluation method and device and a medium, and belongs to the technical field of electrical insulation, and the method comprises the following steps: obtaining the operation data of a cable, and obtaining a thermal aging factor, an electrical aging factor, a mechanical stress factor and a humidity influence factor according to the environment temperature, the electric field intensity, the mechanical stress and the relative humidity of the cable; and calculating the comprehensive aging index of the cable based on the factors. And inputting the operation data and the comprehensive aging index into the TCN-LSTM model, and outputting an insulation aging score of the cable. According to the method, various factors such as the environment temperature, the electric field intensity, the mechanical stress and the relative humidity are comprehensively considered, evaluation errors caused by only considering a single factor are avoided, the more comprehensive and accurate cable comprehensive aging index can be obtained, the cable insulation aging degree can be evaluated more accurately, and a reliable basis is provided for cable maintenance decision making.

The invention relates to the technical field of computer simulation, in particular to a loss stress simulation analysis method for an electronic packaging curing agent. The method comprises the following steps: acquiring physical and chemical parameters and mechanical property data corresponding to the electronic packaging curing agent to generate a packaging curing agent basic performance data set; generating curing agent microstructure evolution data based on the packaging curing agent basic performance data set, and performing stressor identification and packaging stress field distribution mapping to obtain packaging structure stress field initial distribution data; performing stress evolution simulation under a temperature cyclic load according to the initial distribution data of the stress field of the packaging structure, and calculating a loss factor and a stress relaxation coefficient corresponding to an electronic packaging curing agent to obtain a curing agent loss stress characteristic parameter; and acquiring a humidity aging factor, performing influence dynamic evaluation, and generating a curing agent loss stress life evaluation report. According to the invention, the precise simulation process of curing agent loss and stress distribution in the electronic packaging process can be realized.

The invention belongs to the technical field of epoxy material aging evaluation methods, particularly relates to a joint evaluation characterization method for aging characteristics of an epoxy insulating material, and aims to solve the problems that in the prior art, a method for simultaneously carrying out comprehensive evaluation on aging of epoxy resin on thermal, electromagnetic and mechanical property changes is lacked, and most of existing methods adopt simple threshold comparison. And the accuracy and objectivity of an evaluation result are limited. The characterization method comprises the following steps: providing an epoxy insulating material sample; comprehensive aging treatment of electrical aging, thermal aging and mechanical aging is applied to the epoxy insulating material sample so as to obtain epoxy insulating material samples aged at different time lengths; respectively measuring a thermal performance parameter, an electromagnetic performance parameter and a mechanical performance parameter corresponding to each aging time length; and inputting the obtained performance parameters into the neural network model, and outputting the aging grade and the aging factor of the epoxy insulating material so as to complete the joint evaluation of the aging characteristics of the epoxy insulating material.

Compensating for burn-in of static icons on an OLED display involves periodically sample display content to generate an aging factor map indicating a relative aging level of pixels associated with one or more static icons compared to an average aging level of the display. The aging factor map is analyzed to detect areas of static icon burn-in and determine the relative aging level of affected pixels. Based on the relative aging level, a burn-in compensation strategy is selected, ranging from disabling compensation for weak aging to aggressively applying compensation for high aging. The selected strategy is applied to adjust the luminance of the affected pixels using a formula that incorporates a brightness adjustment factor and low-frequency and high-frequency compensation maps. Aspects also can include gradual transitions between compensation states to minimize visual artifacts and a user interface for configuring and monitoring the burn-in compensation process.

The invention relates to an XLPE cable insulation multi-stress coupling accelerated aging device and method and application, and the method comprises the following steps: taking thermal aging stress, electrical aging stress and mechanical aging stress as aging stress forms which can be applied by the device according to aging factor characteristics of an XLPE cable under actual application conditions; the applied magnitude of three aging stresses can be adjusted, and an orthogonal test group of thermal, electrical and mechanical aging stresses is set, so that the influence degree of different aging stress application conditions on the insulation aging of the XLPE cable can be analyzed; two kinds of aging electrodes are arranged for subsequent different aging degree verification tests, and the two kinds of aging electrodes are a dumbbell-shaped sample target electrode customized for a mechanical tensile test and a square sample target electrode designed for general physicochemical electrical properties; by means of the equipment and the matched method, multi-stress accelerated aging treatment can be conducted on XLPE cable insulation, and the effect of providing a basic material for follow-up cable insulation life analysis is achieved.

The invention discloses a transformer aging calculation and life prediction method, device, equipment and medium, and relates to the technical field of transformers, and the method comprises the following steps: S1, calculating an accelerated aging factor FAA of transformer insulation affected by temperature; s2, calculating the life loss of the transformer according to the accelerated aging factor FAA; s3, calculating the total life of the transformer according to the life loss of the transformer; s4, calculating the life loss rate of the transformer according to the total life of the transformer, and predicting the residual life of the transformer. A traditional insulation paper aging calculation and life prediction method is improved from two aspects of transformer equivalent accelerated aging factors and life prediction, influence factors of temperature are considered when insulation paper aging is calculated, and the accelerated aging factors are calculated according to hot spot temperature so as to calculate transformer insulation equivalent life loss. And calculating the total service life, the service life loss rate and the residual service life of the transformer.

This invention discloses a method and apparatus for calculating characteristic vehicle speed by combining road surface and aging factors. It belongs to the field of vehicle technology. The method includes: determining a comprehensive aging factor based on vehicle mileage, tire condition, and suspension aging condition; determining a road surface identification factor based on vehicle condition parameters; and calculating a characteristic vehicle speed based on the comprehensive aging factor, the road surface identification factor, and pre-calibrated first and second characteristic vehicle speeds. The first characteristic vehicle speed is the characteristic speed obtained by testing the vehicle on a designated circular track using winter tires and an aging suspension, and the second characteristic speed is the characteristic speed obtained by testing the vehicle on the same circular track using summer tires and a sport suspension. This invention calculates the characteristic vehicle speed based on the comprehensive aging factor and the road surface identification factor, resulting in a characteristic vehicle speed that better reflects the actual vehicle conditions and road conditions, thus improving the accuracy of the characteristic vehicle speed calculation.

The application provides a kind of intelligent monitoring method and device for pantograph, it is related to train safety monitoring field, solve in the pantograph monitoring, ignore the quality irregularity reduction problem caused by contact pressure and temperature of pantograph, and ignore the technical problem of adaptive monitoring to pantograph;The method comprises: obtaining the target data of current train pantograph;Adaptively set monitoring frequency based on target data, obtain the monitoring data of current train pantograph according to monitoring frequency;Determine the temperature aging factor based on the temperature of pantograph, determine the characteristic temperature aging factor of current pantograph based on the historical temperature aging factor;Determine the wear factor based on the contact pressure of pantograph, determine the characteristic wear factor of current pantograph based on the historical wear factor, issue the maintenance notice of current pantograph based on characteristic temperature aging factor and characteristic wear factor;The application can improve the accuracy of pantograph health quality identification.

The invention relates to the technical field of power equipment operation inspection, in particular to a nuclear magnetic resonance transverse relaxation time spectrum-based composite insulator aging evaluation method, which comprises the following steps of: measuring a composite insulator sample by using a nuclear magnetic resonance spectrometer to obtain a transverse relaxation time distribution T2 spectral line of the sample, and extracting key characteristic parameters; and establishing a mapping relation model of the characteristic parameters and the aging degree, calculating an aging index, and realizing evaluation of the aging degree of the composite insulator and judgment of aging factors. According to the method, starting from the change of the microstructure of the material, the aging degree is represented through the nuclear magnetic resonance signal, the signal abnormity at the initial stage of aging can be detected when the appearance of the insulator has no obvious change, and an earlier basis is provided for formulating a maintenance strategy.

The invention discloses a grading diagnosis and evaluation method for insulation resistance of a mutual inductor, and relates to the technical field of mutual inductors. The method comprises the following steps: acquiring real-time data of a mutual inductor; a humidity gradient value is determined according to the humidity data, whether the humidity gradient is larger than a preset threshold value or not is determined, if the humidity gradient is larger than the preset threshold value, the mutual inductor is divided into five layers in the set height direction, and the temperature weight of each layer and the humidity weight of each layer are determined; temperature and humidity effective compensation parameters are determined based on the temperature weight, the temperature data, the humidity weight and the humidity data of each layer; and determining a target compensation mode according to the equipment aging factor value, compensating the insulation resistance original value according to the temperature effective compensation parameter, the humidity effective compensation parameter and the target compensation mode, and determining a data quality score of the mutual inductor according to the humidity gradient and the electromagnetic interference value. The method has the remarkable advantages of high environmental adaptability, excellent anti-interference capability, low operation and maintenance cost and the like, and can effectively prolong the service life and improve the reliability of equipment.

This invention relates to a method for predicting the fracture toughness of CASS materials after service. The prediction method includes: S1, identifying CASS materials in various aging states and conducting tensile tests on them to obtain the tensile properties of the CASS materials in each aging state. S2, conducting fracture toughness tests on the CASS materials in their original state to obtain the elongation zone width of the original state CASS materials. Furthermore, determining the aging factor of the CASS materials under service conditions. S3, calculating the elongation zone width of the CASS materials in different aging states based on the aging factor and the elongation zone width of the original state CASS materials. S4, calculating the critical fracture strain of the CASS materials in different aging states. S5, estimating the fracture toughness of the aged CASS materials based on the material's elastic modulus, the tensile properties of the CASS materials in each aging state, the elongation zone width of the corresponding aging state CASS materials, and the critical fracture strain. This invention can quickly obtain the fracture toughness of materials after service.

This invention discloses a bio-dress containing multiple anti-aging factors and its preparation method. The bio-dress, by weight percentage, comprises 1-10% collagen solution, 2%-15% styraxine, 0.5%-8% ergothioneine, 1%-12% ectoine, and auxiliary ingredients. This bio-dress integrates multiple anti-aging factors, and through the synergistic effect of these factors, it can effectively improve skin aging problems. It is suitable for medical aesthetics and daily skincare, possessing good anti-aging effects and skin safety.

The invention provides an accelerated aging test method for a nuclear power non-metallic hose, electronic equipment and a medium, and relates to the technical field of nuclear, the method comprises the following steps: carrying out an accelerated aging test on the nuclear power non-metallic hose, regulating and controlling the strength of multiple aging factors through an aging test platform, and obtaining the strength of the multiple aging factors at different time t; the comprehensive aging rate of the nuclear power nonmetal hose is determined according to the strength of the multiple aging factors; obtaining a difference function between the comprehensive aging rate and a target aging rate; and according to the difference function and the aging factor intensity adjustment function corresponding to each of the aging factors, continuously updating the intensity of the aging factors, and obtaining first aging characterization data of the nuclear power nonmetal hose at different time t in the accelerated aging test process.

The embodiment of the invention discloses a wear balance method and device, electronic equipment and a storage medium, and the method comprises the steps: determining the wear degree of each idle physical block according to a physical aging factor and a data heat factor corresponding to each idle physical block in a plurality of idle physical blocks of a memory, the physical aging factor is used for representing the aging degree of the physical block, and the data popularity factor is used for representing the data popularity characteristic of the logic block corresponding to the physical block; determining at least one idle physical block meeting a preset condition in the plurality of idle physical blocks as a target physical block, wherein the wear degree of the idle physical block meeting the preset condition is lower than that of the idle physical block not meeting the preset condition; and writing the to-be-written data into the target physical block. According to the embodiment of the invention, reasonable management of the memory is realized, and the service life of the memory is prolonged.

The invention provides an aging analysis method and device for a silicon oxide film. The method comprises the following steps: configuring an aging factor set of the silicon oxide film; according to a preset environment type, performing frequency analysis on the aging factor set to obtain an aging factor single-cycle fluctuation curve; according to the aging factor single-period fluctuation curve, carrying out an accelerated aging experiment on the silicon oxide film sample to obtain a surface contact angle fluctuation curve, a light refractive index fluctuation curve and a light transmittance fluctuation curve; based on the expected period number, curve trend prediction is conducted on the surface contact angle fluctuation curve, the light refractive index fluctuation curve and the light transmittance fluctuation curve, and the maximum value of the surface contact angle, the maximum value of the light refractive index and the minimum value of the light transmittance are obtained; and marking the silicon oxide film sample based on the maximum value of the surface contact angle, the maximum value of the light refractive index and the minimum value of the light transmittance. According to the invention, the technical problems of low automation degree and low test efficiency in the existing silicon oxide film test are solved, and the test efficiency can be improved.

The invention relates to the technical field of filter elements, and discloses an intelligent element replacement control method and device based on filter element life analysis, the method comprises the following steps: determining first multi-dimensional use information of a target filter element, the first multi-dimensional use information comprising at least two of use cycle information, water quality information, use pressure information and standing cycle information; analyzing service life information of the target filter element according to the first multi-dimensional use information; judging whether the target filter element meets a preset aging state replacement condition or not according to the service life information; when it is judged that the target filter element meets the preset aging state replacement condition, an aging factor of the target filter element is determined, and the aging factor is used for representing a factor enabling the target filter element to meet the preset aging state replacement condition; and according to the aging factor, generating a core changing control parameter of the target filter core. Therefore, the accuracy and timeliness of core changing control can be improved by improving the comprehensiveness and accuracy of core changing control analysis.

The present invention relates to a method for operating a chromatographic column, which comprises: (a) providing a first value of the service life of the chromatographic column (first service life value); (b) performing chromatographic separation of a sample on the chromatographic column; (c) providing a value of a weighted aging factor determined based on at least one aging parameter selected from sample type, sample dilution, and sample volume; and (d) determining a second value of the service life of the chromatographic column (second service life value) based on the first service life value and the weighted aging factor. The present invention also relates to additional methods, databases, devices, and uses related thereto.

A method and device for charging a battery are disclosed. The method estimates an aging mode of the battery reflecting an aging factor and an aging degree of the battery based on battery characteristics corresponding to a charging level of the battery, updates a battery model based on the aging mode, and charges the battery using the updated battery model.

The technology disclosed here relates to a method for determining an aging factor, based on which an aging state of a fuel cell can be determined, comprising the steps of: providing a new polarization curve (11) of a new fuel cell, providing a damage polarization curve (12) of a damaged fuel cell, and determining the aging factor based on the new polarization curve (11) and the damage polarization curve (12). The technology further relates to a determination device (10) and a computer program product (30) for executing the method, as well as a computer-readable storage medium (40) on which the computer program product (30) is stored.

The present invention provides a bridge performance evaluation and life prediction method based on big data analysis, which relates to the technical field of preventive maintenance of bridges in highway engineering. The present invention obtains three-dimensional scanning data of old and new bridges under common service conditions, and combines complex service conditions such as dynamic loads, temperature differences and creep shrinkage, so as to accurately simulate and evaluate the dynamic response of the connection parts under actual use conditions. Especially in the case of old and new bridges serving together, the degradation and damage of the connection parts are particularly significant. In combination with big data technology, the progress of material aging can be tracked in real time to help predict potential hidden damage to the connection parts. By constructing an aging factor, a damage index and a corrosion index, and correlating them with a connection coordination index diagram, a specific stiffness loss factor can be provided for each connection unit, reflecting the degree of performance degradation of the bridge connection parts, and providing a scientific basis for subsequent reinforcement and maintenance strategies.

The invention relates to an aging experiment method of a glass fiber-methacrylate CIPP (CIPP Induced Induced Polypropylene) material. The method comprises the following steps: 1) carrying out dipping treatment on a hose containing multiple layers of glass fiber cloth in methacrylate; (2) the hose subjected to dipping treatment is taken out, and curing treatment is conducted in an ultraviolet curing mode; 3) cutting the hose cured in the step 2) to obtain an experimental sample; and 4) performing an aging experiment on the experimental sample obtained in the step 3) in one aging factor of acid, alkali, temperature and stress or coupling of any two or more aging factors. According to the invention, the glass fiber-methacrylate-based CIPP material under the CIPP technology can be simulated, and the aging effect of the glass fiber-methacrylate-based CIPP material under different acidic environments, different alkaline environments, different temperatures, different stresses and more than two composite factors can be researched.

The utility model relates to the technical field of anti-aging testing of materials, and particularly discloses an anti-aging testing device for automotive trim materials, which comprises a box body, an opening is arranged at the top of the box body, a sealing cover is arranged at the opening in a sealing manner, a frame is rotatably connected to the bottom of the sealing cover, the frame is provided with a plurality of mounting surfaces, and the mounting surfaces are uniformly distributed on the periphery of the frame. A material body is fixedly arranged on the mounting surface, a friction mechanism for rubbing the material body is arranged at the bottom of the sealing cover, a driving mechanism for driving the frame to rotate is arranged on the sealing cover, and a xenon lamp body is fixed at the bottom of the box body. According to the utility model, more comprehensive and more accurate anti-aging test can be realized, and by combining an illumination aging factor and a dynamic friction aging factor, the actual use condition is effectively fitted, and a more comprehensive test effect is obtained.

The application discloses an IGBT module aging characteristic decoupling parameter monitoring method based on temperature characteristics, and specifically comprises the following steps: establishing an IGBT-radiator system thermal network model, iteratively calculating the steady-state temperature difference of each loss period starting node and the steady-state temperature difference of the half loss period node, and constructing an aging characteristic parameter; combining the IGBT module thermal resistance, the saturation voltage drop failure standard, deducing an aging factor calculation formula, and establishing a mapping relationship between the aging characteristic parameter and the aging degree; fixing the working condition, measuring the junction temperature curve of the healthy module under the periodic loss, and calculating the aging characteristic parameter value of the healthy state; measuring the junction temperature curve of any module with different aging degrees under the periodic loss, and calculating the aging characteristic parameter value of the module; and finally calculating the heat dissipation path and the bonding wire aging level of the measured module. The aging characteristic decoupling parameter extraction is more simple and convenient, has small invasion and low cost, decouples the failure mode, and is more comprehensive in representation.

The invention discloses a natural aging influence factor decoupling test box, and belongs to the technical field of material aging resistance test auxiliary tools, and the test box is provided with a box body used for lamellar simulation of a product service environment; the box body comprises a top plate which is used for forming an open type natural aging working condition service environment on the top layer; the partition plates are arranged below the top plate and are used for partitioning the inner space of the box body, so that different service environment layers are formed above and below the partition plates, ventilation openings are formed in the side wall of at least one layer of the box body and are used for air circulation, the box body can be separated at the positions of the top plate and the partition plates to form a plurality of box body split bodies, and the box body split bodies are arranged in the box body. According to the natural aging influence factor decoupling test box, main factors causing material aging are clear, accurate weather resistance test data are provided for aging research of high polymer materials, and the natural aging influence factor decoupling test box has the beneficial effects of simple structure, low manufacturing cost and wide application range.

The invention discloses an anti-aging cable sheath material which comprises the following components in parts by weight: 80-90 parts of SG-5 polyvinyl chloride resin, 15-25 parts of a polyolefin elastomer, 3-8 parts of nano montmorillonite, 4-7 parts of an integrated anti-aging agent, 5-10 parts of core-shell structure modified reinforcing filler, 12-18 parts of an environment-friendly plasticizer, 3-6 parts of a calcium-zinc composite stabilizer and 2-4 parts of a lubricant. The core-shell structure modified reinforcing filler is modified by polydopamine and KH550, so that the interfacial compatibility is good, and the tensile strength and the elongation at break are remarkably improved; the integrated anti-aging agent has efficient anti-aging and stabilizing effects, and is matched with nano-montmorillonite to synergistically obstruct aging factors, so that the aging resistance is greatly improved; and by adopting a segmented temperature control mixing and twin-screw extrusion granulation process, the components are uniformly dispersed, and the processing is stable. The cable sheath material is excellent in mechanical property, outstanding in anti-aging effect and suitable for long-term outdoor and complex working condition cable sheaths.

The embodiment of the invention provides a post-processing temperature limit value control method, a control unit, a storage medium and a vehicle, and belongs to the technical field of engine control. The control method comprises the steps that in the current driving cycle of an engine, a plurality of temperature values of an engine aftertreatment system are obtained at preset time intervals; according to the obtained multiple temperature values, based on a preset temperature and aging factor mapping table, calculating the sum of aging factors used for predicting the aging degree of the engine post-processing system; and comparing the sum of the aging factors with a preset limit value to control the first temperature limit value or the second temperature limit value to serve as the temperature limit value of engine aftertreatment. In the normal operation process of the engine without maintenance, the problem of frequent post-processing high-temperature code reporting can be solved, and meanwhile, post-processing can meet the performance requirement in the whole life cycle; when the engine has a problem and needs to enter the station for maintenance, the embodiment of the invention can timely remind a customer of entering the station for maintenance.

This invention discloses a multi-field coupled aging assessment method for meta-aramid insulating paper based on molecular simulation, relating to the fields of high-voltage insulating materials and computational materials science and technology. It involves loading three aging factors—temperature, moisture content, and electric field strength—into molecular dynamics and reaction kinetics simulations, and outputting the system's microstructure and energy information at preset time intervals to describe the aging evolution process of the meta-aramid insulating paper. The beneficial effects of this invention are: utilizing molecular dynamics and reaction kinetics to simulate the microstructure evolution and reaction behavior of meta-aramid insulating paper under the combined influence of multiple factors such as temperature, moisture, and electric field, achieving mechanism identification and key parameter extraction of the aging process, shortening the assessment cycle, and improving the assessment effect.

The invention discloses an asphalt concrete ultraviolet aging depth characterization method based on a nanoindentation test. The method comprises the following steps: (1) forming an asphalt concrete test piece; (2) performing ultraviolet radiation treatment on the asphalt concrete test piece in an ultraviolet accelerated aging testing machine, and simulating ultraviolet aging of the asphalt concrete; (3) cutting the test piece to obtain small samples required by nanoindentation; (4) grinding and polishing the sample, and grinding off a certain thickness to obtain an asphalt concrete sample at a corresponding depth; and (5) carrying out nanoindentation test on the asphalt concrete samples at different depths to obtain elastic moduli at different depths, and characterizing the ultraviolet aging gradient effect of the asphalt concrete by using aging factors. The method has the advantages of being simple, convenient to operate, clear and visual in result and the like, and the gradient aging behavior of the asphalt concrete under the action of ultraviolet irradiation can be effectively represented.