10 results about "Aging factor" patented technology

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.

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 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.

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.