3 results about "Integration point" patented technology

This invention relates to the field of geophysical exploration technology, specifically to a well-to-surface electromagnetic forward modeling method, apparatus, and storage medium. The method includes: S1, modeling based on an octree mesh; S2, constructing vector Nédélec basis functions on the elements based on Gauss integration points and Gauss-Legendre-Lobatto (GLL) integration points set in the elements; S3, deriving the governing equations of the well-to-surface electromagnetic finite element method starting from Maxwell's equations; S4, constructing block diagonal preconditions and solving using an iterative method; S5, after exiting the iteration, calculating the electromagnetic response using the iterative model. This invention significantly reduces the number of elements in the mesh while maintaining model accuracy, thereby reducing computational costs. Higher-order shape functions are constructed and used in the forward modeling calculation to improve the accuracy of the numerical solution.

This invention provides an AI-adaptive finite element mesh and integral optimization method, system, medium, and device, belonging to the field of finite element simulation technology. The method includes: dividing the target region into an initial mesh and setting integration points; performing a preliminary simulation to obtain the physical field distribution; extracting physical field gradient data; constructing an input feature set by combining geotechnical medium parameters, mesh, and integration point information; training an AI optimization model using a physical information neural network to generate a dynamically adjusted scheme; and after performing a secondary simulation, re-inputting the updated gradient data into the AI ​​model, iteratively optimizing based on the topology change rate and physical field error until convergence. This invention aligns with geotechnical mechanics and seepage laws, avoids purely data-driven biases, significantly reduces redundant calculations while ensuring computational accuracy, and significantly improves the simulation efficiency and accuracy of physical fields such as stress, strain, and seepage. It is suitable for complex geological and nonlinear working conditions and has a high level of automation and intelligence.

This application provides a method and apparatus for solving the completed state of a sealed assembly, relating to the field of sealing component design technology. It includes: acquiring the geometric model of an elastic component and its mating components and constructing an initial assembly configuration; discretizing the sealed assembly system using finite element methods and setting integration points in the elastic component; during the assembly iteration process, determining the corresponding projection point based on the integration point and the component combination it contains, and calculating the contact force at the integration point by combining material parameters, the projection point position, and the surface geometry information of the mating components; and unifying the contact force and the internal elastic force generated by the elastic component under the current configuration into a unified force balance relationship for nonlinear iterative solution until a preset convergence condition is met, thereby obtaining the completed state of the sealed assembly. This application can stably solve the completed state of a sealed assembly even with initial geometric interference, and improves the convergence and computational stability of the assembly simulation by uniformly handling the contact force and internal elastic force.