11 results about "Parametric analysis" patented technology

This invention relates to the field of fluid machinery and valve engineering, and discloses a computational fluid dynamics (CFD) steady-state simulation method based on the adjustable opening of a V-type ball valve. This method establishes a three-dimensional geometric model including the valve body, valve sleeve, and V-type ball valve core, defining the cone angle of the V-type ball valve core as a function of the valve opening to achieve a continuously adjustable description of the valve opening. By meshing the internal fluid computational domain of the valve and locally refining the mesh at the valve core leading edge, the valve core-seat gap, and the boundary layer region, and combining the set initial and boundary conditions, the continuity equation and momentum conservation equation are solved using computational fluid dynamics methods to obtain the steady-state flow characteristics of the V-type ball valve at different openings. This invention describes the valve opening change in a functional form, improving the numerical stability of steady-state simulation under small opening conditions, while also improving the accuracy of flow characteristic calculations under large opening conditions, making it suitable for multi-condition parametric analysis of V-type ball valves.

The invention discloses a method for optimizing the stand column position and the framework section of a sunlight greenhouse of a single-tube arch structure. The method comprises the steps that a three-dimensional finite element model comprising an arch frame, stand columns and straining beams is established; determining the optimal distance from the stand column to the north wall through parametric analysis; sensitivity analysis is carried out, and key skeleton section parameters influencing the allowable snow load are identified; establishing a random forest model to establish a relationship between different skeleton section parameter combinations and allowable snow load values; and on the basis of the allowable snow load value predicted by the random forest model, the optimal skeleton section combination is determined in combination with the calculated steel consumption. The optimal stand column position can be effectively determined, the ultimate bearing capacity and the allowable snow load value of the arch structure are remarkably improved, meanwhile, the steel consumption is reduced by optimizing the cross section of the framework, the technical problem that the structural safety and economical efficiency of a large-span sunlight greenhouse under the snow load condition are difficult to balance is solved, and the construction cost is reduced. And a reliable theoretical basis and a practical optimization means are provided for the design of the sunlight greenhouse.

This invention discloses a method for analyzing the horizontal stress performance of pile foundations in layered transversely isotropic foundations, belonging to the field of pile foundation design and analysis in geotechnical engineering. The method includes: establishing a theoretical model of the pile-soil system, treating the foundation as a multi-layered transversely isotropic material and the piles as Bernoulli-Euler beams; establishing the pile stress-displacement equation based on the finite difference method; establishing the soil stress-displacement equation based on the fundamental solution of the multi-layered transversely isotropic material; constructing the overall stress-displacement equation for a single pile; introducing pile-pile interaction coefficients to extend the single-pile model to pile group analysis; solving the equation system using the full principal component Gaussian elimination method and writing a FORTRAN program for automated calculation; verifying the correctness of the method through numerical examples and conducting parametric analysis. This invention is applicable to the horizontal stress analysis of single piles and pile groups in non-uniform, transversely isotropic foundations of any number of layers, providing a reliable numerical tool for pile foundation engineering design and safety assessment under complex geological conditions.

The invention relates to the technical field of traceability tracking, in particular to a traceability tracking platform construction method and system based on multi-source heterogeneous data fusion, and the method comprises the steps: collecting operation state index parameters of a target traceability tracking platform in a historical period; the operation state index characterization value is analyzed; determining whether the operation efficiency of the target traceability tracking platform meets the standard; in response to the condition that the operation efficiency of the target traceability tracking platform meets the standard, collecting risk assessment parameters of the target traceability tracking platform in a historical period; analyzing the risk assessment characterization value; determining whether the target traceability tracking platform meets a risk assessment standard; and determining a processing strategy based on a difference result between the risk assessment characterization value and a predetermined risk assessment characterization threshold value in response to the fact that the target traceability tracking platform does not conform to the risk assessment standard. According to the invention, the accuracy and response efficiency of the traceability tracking platform are improved.

This invention relates to the field of thermal simulation technology for aircraft braking systems, specifically to a numerical simulation method for the temperature field of aircraft wheel brakes based on Ansys Workbench. The method includes constructing a three-dimensional geometric model of the braking system; defining the geometry, materials, and contact relationships of each component based on the three-dimensional geometric model and the operating conditions of the aircraft wheel brakes; writing APDL code based on the operating conditions of aircraft taxiing, takeoff, and landing, and the geometry, materials, and contact relationships of each component; setting boundary conditions according to typical braking conditions; simulating the braking conditions based on the written APDL code using the boundary conditions; and obtaining the temperature field distribution through transient thermal analysis. This invention, through the synergistic application of APDL command stream embedding and parametric analysis techniques, significantly improves the simulation model's responsiveness and predictive reliability in complex braking environments, providing important technical support for the thermal management design, life assessment, and structural optimization of aircraft braking systems.

This invention relates to a chloride ion diffusion-phase field coupling analysis method for corrosion damage in reinforced concrete. The method includes determining the chloride ion diffusion-phase field coupling analysis method and establishing multi-field coupling of chloride ion diffusion and phase field. It achieves full-process analysis of chloride-induced corrosion damage in reinforced concrete and predicts concrete durability. The method also involves macroscopic simulation of the corrosion process of reinforced concrete by chloride ion diffusion, comparing and verifying the correctness of the chloride ion diffusion-phase field coupling analysis method. Furthermore, it conducts parametric analysis to explore the influence of single or multiple reinforcements, protective layer thickness, or reinforcement position on cracking and durability degradation of reinforced concrete. Based on unified phase field theory, gradient damage theory, damage mechanics theory, and finite element simulation technology, this invention improves the accuracy of concrete durability prediction by performing full-process analysis of chloride-induced corrosion damage in reinforced concrete through multi-field coupling.

Systems and methods are described for performing analysis of parametric events. The method may include: (1) measuring, by one or more processors, an initial composition for an area via one or more sensors associated with the area; (2) using a trained machine learning algorithm, a likelihood of a trigger activation for a parametric event for a user, wherein the calculating includes: (a) predicting a total composition fluctuation for the area, (b) calculating a predicted composition change from the initial composition for the area based upon the total composition fluctuation, and (c) calculating the likelihood of the trigger activation, wherein the trigger activation occurs when the predicted composition change from the initial composition for the area reaches a predetermined threshold value; and (3) an estimated loss for the user based at least upon the likelihood of the trigger activation.

An apparatus comprising means configured to: receive at least one channel speech audio signal and metadata associated with the at least one channel speech audio signal, the at least one channel speech audio signal and metadata being generated from at least one microphone audio signal; and receive at least one channel ambient audio signal and metadata associated with the at least one channel ambient audio signal, wherein the at least one channel ambient audio signal and metadata are generated based on a parametric analysis of the at least one microphone audio signal and the at least one channel ambient audio signal is associated with the at least one channel speech audio signal; generate an encoded multi-channel audio signal based on the at least one channel speech audio signal and metadata and further based on the at least one channel ambient audio signal and metadata, such that the encoded multi-channel audio signal enables spatial rendering of the at least one channel speech audio signal spatially independent of the at least one channel ambient audio signal.

This invention provides a method for analyzing the dynamic characteristics of rigid pile composite foundations involving the interaction between the foundation and the structure. By establishing an overall finite element model of the rigid pile composite foundation-raft slab-superstructure, and systematically performing elastic and elasto-plastic dynamic time-history analyses under minor and major earthquakes, a refined simulation of the dynamic response of the composite foundation system throughout the entire earthquake process is achieved. Parametric analysis clarifies the distribution of internal forces in the rigid piles under minor and major earthquakes, the amplification factor of the pile's dynamic response, and the damping and energy dissipation mechanism of the cushion layer under different earthquake magnitudes. In particular, it quantitatively reveals the influence of the cushion layer thickness on its coordinated deformation and energy dissipation efficiency, thus providing crucial basis for performance-based seismic design. This method can output specific design optimization suggestions, such as the optimal thickness range of the cushion layer, effectively overcoming the errors of traditional separate analysis methods and the shortcomings of empirical design.

The invention relates to the technical field of data analysis, in particular to an SDK anti-fraud monitoring system and method based on multi-dimensional behavior analysis, and the method comprises the steps: extracting key performance indicator parameters; analyzing the key performance indicator characterization value; determining whether the stability of the target website meets a standard or not based on a difference result between the key performance indicator characterization value and a predetermined key performance indicator characterization threshold value; in response to the fact that the stability of the target website meets the standard, risk index data parameters are extracted; analyzing a risk index data representation value; determining whether the risk security of the target website meets a standard or not based on a comparison result of the risk index data representation value and a predetermined risk index data representation threshold value; and in response to the fact that the risk security of the target website does not meet the standard, determining the adjustment amplitude of the key performance indicator characterization threshold value based on a difference result between the risk indicator data characterization value and a predetermined risk indicator data characterization threshold value. According to the method, the anti-fraud efficiency of the SDK is improved through self-adaptive regulation and control.

A method that includes receiving audio content in a first-order ambisonics (FOA) format that includes a first plurality of audio signals, producing a plurality of spatially rendered audio signals by spatially rendering the first plurality of audio signals according to a layout of a virtual loudspeaker array, determining one or more filters by performing a parametric analysis upon at least one of the first plurality of audio signals, filtering at least one of the plurality of spatially rendered audio signals using the one or more filters; and producing a second plurality of audio signals in a higher-order ambisonics (HOA) format based on the plurality of spatially rendered audio signals.