5 results about "Inverse analysis" patented technology

This invention belongs to the field of 3D image rendering technology, and relates to a method and system for modeling and rendering packaging boxes. The invention generates a basic 3D mesh model by acquiring 2D die-cutting line data of the packaging box, extracts physical parameters of the substrate, binds features to the model, constructs multi-layer material rendering channels for optical interference calculations, and generates a model with anti-counterfeiting visual features. Further, through thermodynamic deformation calculations, a rendering model containing physical indentations is generated. Through interference verification and inverse analysis of 3D spatial features, physical processing control quantities are generated to drive production equipment to achieve automated linkage control of the packaging box. This invention solves the problem of traditional rendering mechanisms lacking accurate representation of physical deformation and complex optical scattering, improves the realism and physical accuracy of the rendered model, breaks down the data barriers from 3D rendering to physical processing, and provides effective support for high-precision packaging box production.

This invention relates to the field of tunnel and underground engineering safety monitoring technology, and discloses a method and system for graded early warning of water-soil coupled disasters in soft strata tunnels based on mechanism inversion. The method includes: using multi-scale coupling technology to parametrically couple a pre-constructed macroscopic continuous medium model and a microscopic constitutive model, and generating a mechanism inversion model based on the parameter coupling results to simulate the water-soil coupled disaster response of the tunnel surrounding rock; inputting pre-processed historical monitoring data into the mechanism inversion model, iteratively adjusting the parameters of the mechanism inversion model through inverse analysis to generate a combination of inversion parameters; and inputting pre-processed real-time monitoring data into the corrected mechanism inversion model. This invention, through local mesh refinement and erosion interface mapping based on level set functions, accurately embeds a microscopic constitutive model capable of describing soil particle migration and pore evolution into high-risk areas of the surrounding rock, achieving coupling of macroscopic and microscopic physical processes at key locations.

This invention discloses a reliability modeling and evaluation method for spacecraft separation control systems under radiation environments. The method constructs a system state transition model considering fault propagation, integrates the space radiation environment and the single-event sensitivity characteristics of the hardware, generates a particle incident time series conforming to a Poisson distribution, and performs fault injection simulation of the system based on the Monte Carlo method. On this basis, it extracts multi-dimensional evaluation indicators such as system reliability, fault shielding rate, fault shielding capability, and fault distribution uniformity to form a weighted comprehensive reliability score index. Furthermore, it utilizes Bayesian networks to conduct inverse analysis to identify critical fault paths and sensitive components. This invention can effectively characterize the fault propagation mechanism of single-event upset effects in spacecraft separation control systems, achieving high-reliability evaluation of critical space control systems, and providing theoretical and methodological support for system design optimization and safety verification.

This invention improves the search technology for phenolic compounds. A method for searching phenolic resins of the varnish type, executed by an information processing device, includes the following steps: using empirical data related to phenolic resins of the varnish type to generate multiple prediction models corresponding to multiple target variables; and searching for phenolic resins of the varnish type with a desired physical property balance by using inverse analysis of the multiple prediction models, wherein the empirical data includes the polymer composition, structural formula, reaction solvent, and reaction parameters related to the phenolic resins of the varnish type, and the target variables include developability, heat resistance, and molecular weight.

This invention provides a probabilistic inverse analysis method and system for shear strength parameters of soil and rock masses based on multi-source information fusion, relating to the field of geological hazard risk assessment technology. This invention integrates indoor experimental information, historical prior information, and vegetation age observation information for shear strength parameters. Through Bayesian updating and probabilistic inverse analysis methods, it obtains the final shear strength parameters, significantly reducing the uncertainty of these parameters. The accurate shear strength parameters of various soil and rock masses in deformable slopes output by this invention can be directly used for precise evaluation of slope stability, providing a reliable scientific basis for identifying potential instability and sliding locations and optimizing the design of support structures (such as anti-slide piles and anchors).