12 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 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 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 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 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 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.