7 results about "Section analysis" patented technology

The invention discloses a white and black pavement structure exterior and interior disease one-key plotting method oriented to pavement health management, and relates to the technical field of road engineering detection and maintenance. Reflection crack tracing is realized based on an interlayer disease conduction rule by establishing a cement board joint coordinate system; the method comprises the following steps: determining the types of broken slabs and slab corner fractures by utilizing the spatial geometrical relationship between cracks and joints, calculating indexes such as a load transfer coefficient, a reflection crack rate, a slab breakage rate and a pavement condition index, and generating a visual result containing disease distribution and performance parameters in a linkage manner. According to the method, the traditional single structure layer analysis limitation is broken through, the reflection crack recognition accuracy rate exceeds 92%, the broken plate judgment accuracy rate reaches 94% or above, the batch data processing time complexity is optimized to O (n + m), the single road section analysis time is shortened to be within 5 minutes from 2 hours, the problems of low manual detection efficiency, large errors and the like are effectively solved, and quantitative support is provided for precise maintenance of white and black pavements.

An artificial intelligence-based joint quality prediction method includes collecting raw data including joint cross-section analysis data and joint equipment monitoring data and generating training data by preprocessing the raw data. The artificial intelligence-based joint quality prediction method also includes training, based on the training data, a joint quality prediction model configured to output joint quality of joint equipment based on real-time data collected in real time by the joint equipment. The artificial intelligence-based joint quality prediction method additionally includes validating the trained joint quality prediction model through a K-fold cross validation.

This invention provides a method and system for generating casting process models for automotive chassis components based on multimodal feature recognition. The entire process is automated, effectively addressing the industry pain points of traditional process modeling, such as excessive reliance on human experience, long design cycles, and poor consistency. This invention integrates multi-strategy feature recognition algorithms based on rules, cross-section analysis, and topology spread. It can accurately extract key process features such as spindle holes, machined holes, and complex curved surfaces, and establish a unified local coordinate system, significantly improving the accuracy of complex structural feature recognition. Through a standardized process rule library and standard parts library, it achieves automatic blank processing, automatic selection and assembly of standard parts, and automatic mold generation, compressing the traditional modeling cycle of several days to several hours. Furthermore, this invention performs specific optimizations after selecting chassis components, ensuring that the process scheme closely matches actual production, effectively guaranteeing the consistency and reliability of the process model, and significantly reducing casting process design costs and the risk of human error.

This application discloses a method for constructing a three-dimensional structural model based on cross-section analysis, belonging to the field of geological model construction technology. The method includes: acquiring borehole trajectory data and observation data for a target geological area, and determining virtual intersection points between each borehole trajectory; calculating the local gradient deviation and spectral vector of each borehole trajectory at the virtual intersection point based on the observation data; constructing a confidence weighting matrix based on the intersection angle and local gradient deviation between each borehole trajectory; determining the optimal observation value at the virtual intersection point with the smallest spectral vector error based on the confidence weighting matrix and the spectral vector deviation between each borehole trajectory; updating the observation data with the optimal observation value to generate a corrected observation sequence, and constructing a three-dimensional structural model based on the corrected observation sequence. This application achieves the technical effect of improving the reconstruction accuracy of the model structure under complex borehole layout conditions and enhancing the continuity of topological fractures or attribute fields in the model.

The application discloses a kind of composite briquette adding phase geometric structure and space distribution optimization method, adopt ellipsoid equation to simultaneously describe round ball type, whisker type, sheet type filling method, realize the optimization design of different geometric shapes;Specific steps are as follows:1, give the relevant condition of briquette;2, establish the r-θ2D section analysis model of briquette;3, given the discrete geometric number of adding phase;4, generate corresponding ellipse in model using random algorithm;5, determine whether the ellipse generated in 4 has problem, if there is problem, repeat 4;6, repeat steps 4, 5, generate M sets of data containing random geometry, space distribution;7, carry out mesh division;8, use numerical analysis method and solve in parallel, obtain M groups of key variables;9, based on the result in 8, using genetic algorithm and other optimization means, evaluate the pros and cons of M groups of design, then generate M groups of data again in combination with steps 4-6;10, repeat steps 4-9 until the optimization algorithm convergence condition is reached;11, output optimization result.

Disclosed is a combined numerical and graphical grid and matrix cross-section analysis method for use in structural simulation calculations. The method comprises the following steps: decomposing and discretizing an analyzed component object, and on the basis of grid locations occupied by units after decomposition and discretization, determining a cross-sectional shape and locations of the units; using a mathematical tool capable of performing a matrix operation, using a grid to express a cross-section, determining coordinates by means of a cross-section grid, and using a matrix sequence to represent a cross section of the entire component; implementing matricization of component information by means of combined graphical and numerical value assignment simulation of all cross sections. The present invention uses a spatial grid to simulate a cross section of a component, and by means of establishing discrete grid units, using combined numerical and graphical means, using a matrix positioning method for grid coordinates, and using a multi-dimensional digital matrix to record data, it is possible to establish a unified structural component input and analysis module, which can implement simulation of a structural system in the most intuitive and concise way, and provide considerably effective analysis result display.

The invention discloses an electric power system operation mode rapid backtracking method, system and device based on section analysis and a storage medium, and the method comprises the steps: executing AC power flow N-K scanning in a historical main operation mode of a power grid, and recognizing power flow sections with overload out-of-limit of other lines after elements are cut off; calculating a power transfer coefficient of the cut element to each overload line in the section, and establishing a section inequality describing a section power change relation based on the transfer coefficient; when the planned line is shut down and overhauled, reading a stored section inequality related to the line to be overhauled, performing backtracking calculation according to the section inequality in combination with historical operation data similar to the current operation scene, and evaluating the overload risk of other lines in the section after the overhauled element is cut off; and the controllability of the section in a historical similar scene is judged based on the overload condition so as to evaluate the feasibility of the maintenance plan. The requirements of scheduling personnel on calculation efficiency and real-time performance are met, and a basis is provided for line maintenance outage plan arrangement.