7results about How to "Reduced simulation time" patented technology

This invention discloses a high-performance computing-based system and method for evaluating colorectal cancer screening strategies, belonging to the field of medical information processing technology. It includes: a dual-pathway disease model module supporting both adenoma-carcinoma pathways and serrated adenoma pathways, modeled using age-dependent normal distribution progression time; an individualized risk scoring module integrating risk factors such as family history, inflammatory bowel disease, obesity, and diabetes; a screening strategy simulation module supporting combined screening strategies using different tools, employing compliance parameters specific to the Chinese urban population; a high-performance computing module using Numba JIT compilation technology for acceleration, multi-process parallel processing for further acceleration, and data structure optimization such as integer age to reduce memory usage; and a health economics evaluation module calculating indicators such as QALY, LYG, and ICER. This invention achieves significant performance improvements while maintaining model accuracy, greatly reducing simulation time for large-scale populations.

This invention relates to the field of sliding bearing simulation and optimization technology, and more specifically to a high-precision simulation and optimization design method for hydrostatic thrust sliding bearings. It establishes an efficient decoupling model of the fluid-solid-thermal three-physics field of the hydrostatic thrust sliding bearing, decomposing the overall thermodynamic field into two subfields, which are coupled with the fluid force field and the solid force field, respectively. Then, it constructs a gap oil film flow / thermal field model and a friction pair deformation solid / thermal field model, achieving equivalent coupling through data transfer. The oil film control equations are iteratively solved to obtain oil film pressure, temperature, and flow velocity; the friction pair equations, including elastic constitutive and thermal strain equations, are solved to obtain their elastic and thermal deformations, with bidirectional data transfer achieving coupled iteration. Based on the above method, simulations are performed, establishing sub-models of oil film flow and friction pair deformation, using local interpolation and dynamic meshing to process the interface; the oil cavity is optimized based on the simulation results, parametric analysis is used to establish the mapping between structural parameters and lubrication performance, the objective function and constraints are defined, and the optimal oil cavity structure is obtained through algorithms.

The application discloses a kind of based on space-time feature separation's gas-solid coupling reaction system modeling and system state prediction method, first using model description to the gas-solid coupling reaction system of metallurgical equipment;Then, extract the key parameters in reaction system model and combination construction different working conditions of system;Again, using the multi-working condition system excitation method based on orthogonal test, excite system under each working condition, obtain the system characteristic data corresponding to working condition;Finally, by intrinsic mode decomposition, the system characteristic data is decomposed into spatial basis function and time coefficient, then establish the prediction model of time coefficient, predict the system state of future time through the prediction value of time coefficient and spatial basis function.The present application can realize the accurate modeling of gas-solid coupling reaction system of metallurgical equipment, and the prediction accuracy of model to system state is high.

This invention relates to a design method for cross-flow ducts. A two-dimensional model of the axial cross-flow fan is created, meshed, and imported into a solver. Material properties, boundary conditions, and time steps are set, and the solver is run to monitor the volumetric flow rate Q at the cross-flow duct outlet. v The numerical change of Q v When periodic fluctuations are reached, the solver stops solving; then the time step is reduced, and the solver is run again; the noise model is enabled, and the solver is run again, outputting Q. v And A-weighted sound pressure level dB(A), finally selected Q v The design method identifies the range of variables to be designed when the airflow design requirements are met and the dB(A) noise design requirements are met. Within each range, the minimum value of the variable is selected as the optimal value. The cross-flow duct is then designed according to the optimal value of each variable. This design method is efficient and improves design reliability.

This invention discloses a rapid beamforming method for large antenna arrays based on partitioned calibration and proximity coupling, belonging to the field of antenna design and electromagnetic simulation technology. It aims to obtain the actual realized gain pattern of large mutually coupled arrays at low cost and high speed. This invention models the array in differentiated regions: precise simulation of local coupling is performed on edge elements, while data reuse is achieved for central region elements using a pre-calibrated equivalent model. After acquiring the electric field data of each element, a global optimization algorithm based on the mutually coupled environment is used to directly solve for the element excitation distribution that optimizes beam pointing performance, and the actual realized gain pattern conforming to the actual port matching state is quickly synthesized. Simulation results show that, while maintaining accuracy similar to full-wave simulation, this invention only requires simulating a small number of key elements to efficiently synthesize the radiation pattern of a large-scale array, significantly improving design efficiency.

Full caliber grinding and polishing controllable ring belt removal method relates to the field of full caliber polishing and grinding technology, solves the problems that the existing technology cannot accurately predict the surface removal amount distribution of the measured element, and has poor controllability, the method obtains the ring belt to be removed by detecting the actual ring belt characteristic representation of the surface of the workpiece to be polished and ground; and carries out processing simulation to obtain the simulated removal amount distribution; the simulated ring belt characteristic representation is compared with the actual ring belt characteristic representation obtained by detection, when the characteristics coincide, the speed and pressure data used in the processing simulation are used as the optimal processing parameters, and the ring belt is removed according to the optimal processing parameters. In the method, the ring belt characteristic representation is a simplified representation method of the workpiece surface, which can quantify the surface information and more intuitively reflect the surface characteristic information, and can realize the preliminary ring belt controllable removal of the full caliber polishing technology.