18 results about "Basic dimension" patented technology

The invention relates to the technical field of product optimization, and discloses a product optimization method and device based on user feedback, equipment, a medium and a product, and aims to perform association analysis on multi-modal evaluation data of a user, realize semantic association of texts, voices and pictures and obtain user feedback data with relatively high reliability. And extracting a plurality of to-be-processed feedback suggestions from the user feedback data of the plurality of users, realizing multi-dimensional classification of the to-be-processed feedback suggestions by utilizing a knowledge graph architecture, and realizing classification refinement of the to-be-processed feedback suggestions. The scores of the to-be-processed feedback opinions in the multiple basic dimensions are evaluated by using the multi-dimensional classification result, and the quantum state priorities of the to-be-processed feedback opinions are obtained according to the quantum amplitude of each basic dimension, so that priority judgment is more flexible. And finally, sorting each to-be-processed feedback suggestion based on the quantum state priority, and generating a target product optimization scheme according to a sorting result, so that product optimization is performed, and the use experience of a user on the product is improved.

One variation of a method includes: accessing a rendering of a model depicting features of a part; accessing a set of target features of the rendering and a function of the part, the function defining a constrained degree of freedom for the part; defining a set of datums intersecting a subset of target features that constrain the part according to the constrained degree of freedom; populating an engineering drawing with a set of projections of the rendering; annotating edges of the subset of target features in the set of projections with datum callouts; annotating edges of the set of target features in the set of projections with feature control frames; annotating a set of edges in the set of projections with the basic dimension callouts representing numerical dimensions relative to the set of datums and reference dimension callouts representing maximal dimensions of the part; and rendering the engineering drawing.

The application discloses a kind of solving method of unmanned aerial vehicle equivalent simulation spacecraft kinematics characteristics, steps are as follows: the inertial coordinate system required for constructing equivalent model and satellite orbit coordinate system, relative motion equation in orbit coordinate system is established;According to the equation, the spacecraft orbit kinematics parameters and unmanned aerial vehicle equivalent kinematics parameters are determined;Combining each parameter basic dimension, dimension matrix is listed, and the basic parameter quantity describing physical process is determined according to the rank of matrix;Based on the similarity of model and prototype, the similarity condition is applied to dimensionless number, the equation describing two systems is established, and then the scale factor of each kinematics parameter is derived.The method makes full use of the controllable characteristics of unmanned aerial vehicle flight height, speed and vertical climbing / descending speed, and realizes the simulation of satellite motion process by unmanned aerial vehicle through formulating reasonable space-time scaling rules, combining spacecraft kinematics characteristics and unmanned aerial vehicle flight control technology.

The present invention discloses a comprehensive design method for a micro-reactor Brayton cycle system. This method considers the coupling relationship between component performance and cycle parameters, constructing a micro-reactor Brayton cycle-component joint design program. The thermodynamic parameters at each cycle point serve as component design boundary conditions, and the component design results serve as component performance input values within the cycle. The cycle thermodynamic calculation results and the component design results are interactively and iteratively corrected until the cycle efficiency error between the two calculations meets the required error. Component performance and basic dimensions can be obtained during the cycle design phase, enabling the simultaneous design of cycle and component parameters and significantly improving the accuracy of the design results. Furthermore, the present invention creatively proposes replacing the traditional cycle efficiency optimization target with "system power density" and employs a genetic optimization algorithm to optimize the cycle design parameters, resulting in a micro-reactor Brayton cycle system design scheme that balances high efficiency and compactness.

The application provides a regular wave slamming construction platform stress analysis method and system and a computer readable storage medium thereof. According to platform basic dimensions and wave basic parameters, a stress condition of the regular wave slamming construction platform is directly, quickly and efficiently calculated based on a large amount of test measurement data. The defects of the direct calculation complexity, measurement cost and the like of the slamming pressure load prediction in the existing theoretical calculation and model test are solved.

The invention relates to the technical field of civil engineering structure analysis and design, in particular to a rapid modeling method and structure design method for a truss type arch rib, and the rapid modeling method for the truss type arch rib comprises the steps that a plurality of processing modules are established, the arch rib is divided into a plurality of feature areas according to web member distribution features, and a plurality of processing modules are established; modularization and parameterization of the arch rib modeling process are achieved, the arch rib plane geometric model can be rapidly, accurately and efficiently established on the basis of the drafted basic size information of the arch rib in combination with programming software, the modeling time is shortened, the labor cost is reduced, the efficiency of engineering technicians in the truss arch bridge design process is improved, and the construction efficiency is improved. According to the structural design method of the trussed arch rib, on the basis of rapid modeling of the trussed arch rib, an arch rib plane structure diagram can be rapidly obtained, the method can be rapidly applied to arch rib structural design, the efficiency and accuracy of structural design of the trussed arch bridge are improved, and the safety and applicability of design and construction of the arch bridge are improved.

The application provides an irregular wave slamming construction platform stress analysis method and system and a computer readable storage medium thereof. According to platform basic dimensions and wave basic parameters, a stress condition of the irregular wave slamming construction platform is directly, quickly and efficiently calculated based on a large amount of test measurement data. The defects of the direct calculation complexity, measurement cost and the like of the slamming pressure load prediction in the existing theoretical calculation and model test are solved.

The invention discloses a method and system for partitioning the engineering influence degree of ground loading on a tunnel below. The method comprises the steps that dependent variables and independent variables of the tunnel below influenced by the ground loading are determined; selecting a basic dimension from the plurality of physical and mechanical parameters, and performing dimensionless processing on independent variables and dependent variables except the basic dimension to obtain dimensionless parameters; carrying out combinatorial operation by utilizing the dimensionless parameters to form new dimensionless parameters; performing correlation analysis on the data of the dependent variables and the dimensionless parameters, and selecting the dimensionless parameters meeting target requirements as control variables; drawing the obtained values of the dependent variable and the control variable into a contour map, adjusting the level and the numerical value of a contour line, and carrying out detail amplification on the local area to obtain a detail contour map; and optimizing the detail contour map to form a straight and smooth partition division map. According to the invention, fine quantitative partitioning of ground loading influence can be realized, so that the tunnel safety assessment and risk management and control precision is improved.

The invention discloses a resolving method for equivalent simulation of spacecraft kinematics characteristics by an unmanned aerial vehicle, which comprises the following steps of: constructing an inertial coordinate system and a satellite orbit coordinate system required by an equivalent model, and establishing a relative motion equation in the orbit coordinate system; determining spacecraft orbit kinematics parameters and unmanned aerial vehicle equivalent kinematics parameters according to the equation; a dimension matrix is listed in combination with the basic dimensions of the parameters, and the number of basic parameters describing the physical process is determined according to a matrix rank; on the basis of the similarity between a model and a prototype, similar conditions are applied to dimensionless numbers, an equation is established to describe two systems, and then scale factors of kinematics parameters are deduced. According to the method, the controllable characteristics of the flight height, the flight speed and the vertical climbing / descending speed of the unmanned aerial vehicle are fully utilized, a reasonable space-time scaling criterion is formulated, and the kinematics characteristics of a spacecraft and the flight control technology of the unmanned aerial vehicle are fused, so that simulation of the unmanned aerial vehicle on the satellite motion process is realized.

The present invention discloses a method, system, and medium for optimizing a carbon-immersion lead-zinc reduction reactor. The method comprises: presetting basic dimensional parameters of an initial carbon-immersion lead-zinc reduction reactor, constructing a geometric model of the fluid computational domain of the carbon-immersion lead-zinc reduction reactor; determining reaction control equations of the geometric model; initializing operating parameters of the geometric model and meshing the geometric model; performing simulation calculations based on the meshed geometric model to obtain reaction parameters within the carbon-immersion lead-zinc reduction reactor, and obtaining gas-phase and slag two-phase flow field distributions, temperature field distributions, and lead-zinc depletion effects based on the reaction parameters; determining whether an optimization basis satisfies preset conditions: if so, terminating the simulation; if not, adjusting the structural parameters and / or operating parameters of the reactor based on the optimization basis until the preset conditions are met. This achieves efficient reduction and recovery of iron in the depleted slag.

The present invention provides an evaluation method and system for time-delay rockburst induced by blasting disturbance, which relates to the technical field of tunnel engineering, including selecting basic dimensions from multiple physical factors based on dimensional analysis, and constructing a general model of blasting impact stress by using the basic dimensions and basic models; establishing a numerical analysis model of the tunnel according to parameter information of the tunnel to be blasted, simulating vibration acceleration data and blasting impact stress data of surrounding rock particles in adjacent tunnels facing blasting under different charge amounts and different blasting center distances in the numerical analysis model; substituting the acceleration data and blasting impact stress data into the general model to fit a blasting impact stress calculation model of the tunnel to be blasted; constructing an evaluation model for the probability of inducing time-delay rockburst in adjacent tunnels when the tunnel to be blasted is blasted by using the blasting impact stress calculation model. The present invention provides a set of systematic evaluation systems to evaluate the risk of time-delay rockburst, and provide scientific guidance and early warning for construction.

The invention relates to the field of spring machining and manufacturing, in particular to a technological method and system for increasing the effective stroke of a spring. 2, when the spring is compressed to the maximum use state, the ideal distance between every two adjacent working rings of the spring is calculated, and the existing distance between every two adjacent working rings of the spring is measured; thirdly, when the springs are compressed to the maximum use state, the difference value between the ideal distance between the adjacent working rings and the existing distance is obtained; fourthly, the difference value obtained in the third step and the distances, obtained in the first step, of the adjacent working rings are added correspondingly, and a new spring working ring distance distribution diagram in the free state is obtained; fifthly, spring winding is conducted according to the new spring working ring distance distribution diagram in the free state obtained in the fourth step; compared with an existing equidistant winding method, the effective use interval of the spring is greatly increased, the basic size of the spring is not changed, and the assembly structure size of a product is not affected.

The invention discloses a feature simulation piece design method and an engine wheel disc test method.The feature simulation piece design method is used for a crack propagation test of an engine wheel disc, and the feature simulation piece design method comprises the steps that S1, a three-dimensional geometric model is constructed based on actual components of the engine wheel disc; s2, establishing a finite element analysis model based on the three-dimensional geometric model of the actual component of the engine wheel disc and the material parameters; s3, designing a simulation piece, enabling the simulation piece to have a stress concentration simulation structure and a stress gradient distribution simulation structure, and determining an initial basic size of the simulation piece; s4, performing finite element simulation analysis; and S5, judging whether the stress test data of the simulation piece is consistent with the stress test data of the actual component or not, if so, completing the design of the simulation piece, and if not, adjusting the size of the stress concentration simulation structure of the simulation piece and / or adjusting the size of the stress gradient distribution simulation structure of the simulation piece, and repeating the steps S4-S5 until the stress test data of the simulation piece is consistent with or tends to be consistent with the stress test data of the actual component.

The embodiment of the invention provides a material wrinkle detection method and device, electronic equipment and a medium, and relates to the technical field of tire manufacturing. The method comprises the steps that a target spliced image corresponding to a to-be-detected flexible material is obtained, and the target spliced image is formed by splicing all material conveying images sequentially shot by an industrial camera in the conveying process of the to-be-detected flexible material on a material conveying machine; based on the target spliced image, basic dimensions of the to-be-detected flexible material are determined, and the basic dimensions comprise the overlap amount, the dislocation amount, the off-center amount and the material width; determining a position area of the to-be-detected flexible material in the target spliced image based on the basic dimension, and intercepting a material area image containing the to-be-detected flexible material from the target spliced image based on the position area; and inputting the basic dimension and the material area image into a pre-trained target deep learning model, and determining whether the to-be-detected flexible material has wrinkles or not through the target deep learning model.

The invention relates to the technical field of five-axis machining. The invention discloses a five-axis machine tool RTCP precision detection method. The method comprises the following steps: determining the machining size allowance of a test piece according to the preset basic size of the test piece and the target size of the test piece; the test piece is machined through the five-axis machine tool according to the machining size allowance of the test piece, and the machined test piece is obtained; measuring the processed test piece to obtain the actual size of the processed test piece; and obtaining error data of the five-axis machine tool RTCP according to the target size of the test piece and the actual size of the processed test piece. According to the method, the RTCP precision of the five-axis machine tool is detected in a test piece cutting mode, errors, influencing the RTCP precision, in all directions can be recognized, the error recognition precision is improved, therefore, the RTCP precision of the five-axis vertical machining center can be rapidly and accurately adjusted, the RTCP precision adjusting time is shortened, and meanwhile the final RTCP precision of the machine tool is improved.

The present invention discloses a method for designing a feature simulation component and a method for testing an engine disk. The method for designing the feature simulation component, where the feature simulation component is used for the crack propagation test of the engine disk, includes: S1. constructing a three-dimensional geometric model based on the actual component of the engine disk; S2. establishing a finite element analysis model based on the three-dimensional geometric model and material parameters of the actual component of the engine disk; S3. designing the simulation component to have a stress concentration simulation structure and a stress gradient distribution simulation structure, and determining the initial basic dimensions of the simulation component; S4. performing finite element simulation analysis; S5. judging whether the stress test data of the simulation component is consistent with that of the actual component. If so, the design of the simulation component is completed. If not, adjust the dimensions of the stress concentration simulation structure of the simulation component and / or adjust the dimensions of the stress gradient distribution simulation structure of the simulation component, and repeat steps S4 - S5 until the stress test data of the simulation component is consistent or tends to be consistent with that of the actual component.

The application provides a design method of a V-shaped notch ultrasonic fatigue variable cross-section cylindrical sample, and relates to the technical field of ultrahigh cycle fatigue performance analysis, and comprises the following steps: obtaining one-dimensional longitudinal vibration equation of the V-shaped notch ultrasonic fatigue variable cross-section cylindrical sample based on elastic wave theory; obtaining displacement amplitude differential equation by separation of variables method; giving vibration displacement amplitude function and harmonic length analytical formula of the V-shaped notch sample; obtaining required harmonic length and basic size of the sample according to test material and given conditions. The reliability of the analytical design method is verified by analyzing the inherent frequency of the sample under the axial tension and compression state by the finite element method. The method is suitable for analytical design and verification of the notch variable cross-section cylindrical sample under the ultrasonic fatigue loading working condition, enriches the sample type and design method of the ultrasonic fatigue test, and when the notch angle, test design frequency and metal material change, the sample only needs to be adjusted in the harmonic length, the principle is simple, and the method is convenient to apply.

The application discloses a multi-dimensional old building reconstruction effect evaluation method and device, and relates to the field of building engineering quality evaluation.The method comprises the following steps: acquiring project characteristic parameters of a building to be evaluated and real-time evaluation data corresponding to each evaluation dimension of the building to be evaluated; inputting the project characteristic parameters into a dynamic weight prediction model to obtain target weights of each evaluation dimension; inputting the real-time evaluation data corresponding to each evaluation dimension into a scoring prediction model to obtain basic scores corresponding to each basic dimension and a core score corresponding to a core dimension; and performing weighted processing on the target weights of each evaluation dimension, the basic scores of the building to be evaluated and the core score of the core dimension to obtain a reconstruction effect score of the building to be evaluated.The application sets multiple evaluation dimensions for evaluation, can cover the life cycle of old building construction, the reconstruction score is more objective, and the application no longer depends on personal experience and judgment, so that the accuracy and authenticity are improved.