14 results about "Geometric configuration" patented technology

The invention relates to the technical field of ball valve design and simulation, in particular to a three-dimensional simulation design method and system for a ball valve. The method comprises the following steps: performing reference geometric construction based on a ball valve design specification, and performing geometric parameterization to obtain an initial geometric configuration; importing the initial geometric configuration into a finite element analysis platform, and endowing material attributes to obtain a finite element mesh model; performing ball valve working stress analysis on the finite element mesh model to obtain a stress-strain field; performing model fluid domain grid division according to the initial geometric configuration and the stress-strain field to obtain a fluid domain grid; valve opening change setting is conducted on the fluid domain grids, and a CFD calculation model is obtained; internal flow field transient simulation of the ball valve under different opening degrees is conducted on the CFD calculation model, and fluid dynamic parameters are obtained. The dynamic characteristics of the valve under the complex working conditions are accurately captured, and the working performance of the valve under different working conditions is improved.

The upper / lower deflection of the wing variable-camber structure based on the fishbone imitating concept and the zero-Poisson-ratio lattice structure is realized by rotating and driving the symmetrically mounted eccentric levers. Every time the eccentric lever rotates by a certain angle, the wing variable camber structure presents a corresponding geometric configuration. And according to the geometrical relationship, the position of the web and the geometrical configuration of the wing variable camber structure when the eccentric lever rotates by different angles are solved. Work done by rotation of the eccentric lever is equal to strain energy stored by corrugation deformation of the upper surface and the lower surface of the wing variable-camber structure, and the driving torque-rotation angle relation of the wing variable-camber structure is further obtained.

The present invention discloses an optimal geometric configuration method for RSS source positioning of a drone cluster and its application. The method comprises the following steps: performing RSS measurement on a drone cluster under flight domain constraints to establish an optimal geometric configuration problem; in a hovering state, without considering flight altitude and horizontal distance, decomposing the optimal geometric configuration problem into conventional and unconventional cases according to framework theory, respectively establishing the optimal sensor-target geometry; then, considering domain constraints, determining the optimal geometric configuration scheme for the drone cluster in the hovering state through geometric and algebraic analysis; in low-speed and high-speed flight states, based on the optimal geometric configuration scheme in the hovering state, applying the sensor equivalence placement criterion and considering domain constraints, determining the optimal geometric configuration scheme for the drone cluster in low-speed and high-speed flight states. The method can be used to refine prior estimation results. The present invention greatly improves the accuracy of estimation results for RSS source positioning of drone clusters.

The invention relates to a multi-piece multi-dimensional functionally graded material optimization method, device, equipment and medium, and belongs to the technical field of functionally graded materials.According to the multi-piece multi-dimensional functionally graded material optimization method, a multi-piece three-dimensional functionally graded material porous structure is constructed based on a B spline or NURBS; the constructed PHT-AIGA is adopted to carry out self-adaptive solution and iterative refinement on the geometric configuration of the porous structure of the multiple pieces of three-dimensional functionally graded materials, a numerical analysis template grid meeting an error threshold value is obtained, and the PHT-AIGA comprises geometric analysis such as a PHT spline base, a super-convergence recovery base error estimation algorithm and a Doffler marking strategy; according to the method, a multi-objective optimization function is constructed with the minimum mass and the maximum free vibration fundamental frequency as optimization objectives, iterative solution is conducted on the multi-objective optimization function, optimized design variables are obtained, and the precision and efficiency of multi-objective optimization of the multiple pieces of three-dimensional functionally graded materials are improved.

The invention discloses a cross-scale experimental method for regulating and controlling a high r value of ferrite austenite dual-phase steel, which comprises the following steps: (1) designing a multi-orientation sample: (1.1) geometric configuration: stretching the sample in three directions: designing an I-shaped sample based on the rolling direction, the transverse direction and the 45-degree direction of a plate; (1.2) a texture strengthening structure; (2) a cross-scale experiment method: (2.1) two-stage controlled rolling and controlled cooling simulation; (2.2) carrying out a multi-axis strain path experiment; and machine learning optimization: based on a random forest algorithm, inputting parameters such as annealing temperature, cooling speed and phase proportion and outputting r value and delta r, generating a process-performance Pareto leading edge, and recommending an optimal solution set. By precisely regulating and controlling the biphase texture, the phase interface morphology and the grain gradient distribution, the mean value of the r value is larger than or equal to 1.8, the anisotropy delta r is smaller than or equal to 0.3, and the deep drawing performance limit is broken through.

The application discloses a kind of end effector support rod structure automatic generation method and device.Therein, the method includes: determining the spatial position information of the reference component of end effector in the three-dimensional model of the end effector, wherein the reference component includes main rod and suction disc;Based on the spatial position information, the geometric configuration relationship model of the auxiliary component connected with the reference component is established, wherein the auxiliary component includes support rod, pipe clamp head, main rod joint and suction disc adapter;Based on the geometric configuration relationship model, the installation pose of the auxiliary component is determined, and based on the installation pose, the support rod structure of the end effector is generated.The application solves the technical problem that assembly adjustment is complicated due to the multiple degrees of freedom of parts in the existing end effector design technology.

An electronic device with a deformable housing supports at least one display and includes sensors to detect the device's geometric configuration. Processors, operable with the sensors, present content with visual indicia that identify the deformed geometry at which the content was originally created, unless the current device configuration matches the original geometric configuration. The visual indicia may include instructions for adjusting the device to match the original geometry, enhancing the playback experience. The content's originating geometric configuration can be stored as metadata, allowing for accurate reconstruction during playback. This system addresses the challenges of screen recording and playback on foldable devices by incorporating the device's folding angle information into the screen recording process, thus ensuring playback reflects the original recording conditions.

The application discloses a non-rotation type integral inertial particle separator design method, which comprises the following steps: S1, establishing an XY coordinate system and determining a plurality of key nodes on a meridian plane flow passage profile and coordinates of the key nodes; S2, setting a slope value for each key node; S3, calculating a two-degree-of-freedom adjustable curve between two key nodes which need to be connected into a line; S4, calculating the two-degree-of-freedom adjustable curve between all the key nodes which need to be connected, and sequentially connecting to form a meridian plane flow passage profile of the non-rotation type integral inertial particle separator; and S5, rotating the meridian plane flow passage profile by 360 degrees around the x-axis of the coordinate system to generate a solid of revolution, and obtaining a three-dimensional geometric configuration of the non-rotation type integral inertial particle separator. i,1 i,2 The application adopts a two-degree-of-freedom adjustable curve function, and the shape of the curve between any adjacent key nodes can be freely changed by changing free parameters O i,1 i,2 , O i,2 , so that the design and research of the parameterization of the non-rotation type integral inertial particle separator are more flexible and rapid.

The invention discloses a design method of a non-rotation type integral inertia particle separator, which comprises the following steps: S1, establishing an XY coordinate system, and determining a plurality of key nodes on a meridian plane flow channel profile and coordinates of the key nodes; s2, setting a slope value for each key node; s3, calculating and generating a two-degree-of-freedom adjustable curve between two key nodes which need to be connected into a line; s4, calculating to obtain a two-degree-of-freedom adjustable curve between all the key nodes needing to be connected, and sequentially connecting to form a meridian plane runner molded surface of the non-rotation type overall inertia particle separator; and S5, rotating the meridian plane flow channel molded surface by 360 degrees by taking the x axis in the coordinate system as a rotating shaft to generate a rotating body, and obtaining a three-dimensional geometric configuration of the non-rotation type integral inertial particle separator. According to the method, a two-degree-of-freedom adjustable curve function is adopted, the shape of a curve between any adjacent key nodes can be freely changed by changing free parameters Oi, 1 and Oi and 2, and parameterization design research of the non-rotation type overall inertial particle separator can be more flexibly and rapidly carried out.

This application discloses a method, apparatus, equipment, and medium for optimizing the geometric layout of an aircraft under the influence of aerodynamics and aero-thermal coupling, relating to the field of aircraft layout design technology. The method involves determining the geometric shape and parameters corresponding to the geometric configuration, calculating the geometric deformation of the configuration under steady-state conditions, determining the deformation location and deformation value of the aircraft under the influence of aerodynamics and aero-thermal coupling, characterizing the deformation value to obtain a geometric representation, sampling the geometric parameters and deformation values ​​to obtain geometric configurations under different combinations of geometric parameters and deformation, constructing an aerodynamic performance prediction model, inputting the current geometric parameters and current geometric representation into the aerodynamic performance prediction model, outputting predicted aerodynamic performance indicators, selecting the optimal predicted aerodynamic performance indicators, and using the corresponding optimal geometric parameters to determine the optimized geometric layout shape of the aircraft. This solves the uncertainty optimization problem in aircraft aerodynamic layout design and improves the robustness of aircraft aerodynamic performance.

The application discloses an energy element numerical solution method for bending of a two-dimensional medium-thick plate with an arbitrary geometric configuration. The method comprises the following steps: a hole is dug in a standard rectangular domain to simulate a two-dimensional medium-thick plate domain with an arbitrary geometric configuration; then, a discrete variable-thickness matrix and a discrete variable-stiffness matrix are formed based on Gaussian integral points; then, a structure global discrete variable-stiffness system is constructed to represent the distribution of energy in space; the geometric boundary is controlled through discrete energy; finally, the numerical solution of the bending problem of the two-dimensional medium-thick plate with the arbitrary geometric configuration is obtained by solving an energy functional under the control of a global trial function. The application can solve the problem that the Reissner method cannot solve the bending problem of the two-dimensional medium-thick plate with the arbitrary geometric configuration by using a global trial function.

The invention relates to the technical field of welding and industrial robot automation, and discloses a welding track planning method and device, a welding robot and a medium. The welding track planning method comprises the steps that three-dimensional geometric model data of a welding workpiece is obtained, and a welding seam path and geometric characteristics of a welding seam are determined based on the model data; establishing a welding seam local coordinate system based on the geometric features; welding bead arrangement is planned according to the local coordinate system, and space arrangement information of each welding bead is obtained; determining geometric configuration parameters of each welding bead based on the spatial arrangement information; and the geometric configuration parameters are mapped to the corresponding welding line paths, and a welding track point set forming the welding track is obtained. According to the method, reliable trajectory planning of the pure linear welding seam is achieved, the application range of the multi-layer multi-pass welding automatic trajectory planning technology is remarkably expanded, and the automation level, the repetition precision and the field implementation efficiency of the welding technology are comprehensively improved.

The invention discloses a method and a device for automatically generating a tooling support rod structure. The method comprises the steps that spatial position information of a reference part of the tooling in a three-dimensional model of the tooling is determined, and the reference part comprises a main rod and a suction cup; based on the spatial position information, a geometric structure relation model of an auxiliary component connected with the reference component is established, and the auxiliary component comprises a supporting rod, a pipe chuck, a main rod connector and a suction cup adapter; and based on the geometric construction relation model, determining an installation pose of the auxiliary component, and based on the installation pose, generating a support rod structure of the tooling. The technical problem that in an existing tooling design technology, due to the fact that the degree of freedom of parts is large, assembling and adjusting are tedious is solved.

An electronic device with a deformable housing supports at least one display and includes sensors to detect the device's geometric configuration. Processors, operable with the sensors, present content with visual indicia that identify the deformed geometry at which the content was originally created, unless the current device configuration matches the original geometric configuration. The visual indicia may include instructions for adjusting the device to match the original geometry, enhancing the playback experience. The content's originating geometric configuration can be stored as metadata, allowing for accurate reconstruction during playback. This system addresses the challenges of screen recording and playback on foldable devices by incorporating the device's folding angle information into the screen recording process, thus ensuring playback reflects the original recording conditions.