49 results about "Structural coupling" patented technology

An adjustable roller assembly for a linear rail system carriage has an indexing collar, an eccentric bushing, an adjustable roller, a suspension element, and an adjustment collar. The indexing collar has a first indexing structure. The adjustable roller is rollably mounted to a roller side end of the eccentric bushing. A rolling axis of the adjustable roller is offset from the axis of the adjustable roller assembly. The suspension element is mounted in axial alignment with an adjustment side end of the eccentric bushing. The adjustment collar has a circumferential flange having a second indexing structure. The first indexing structure and the second indexing structure are coupled to rotationally couple the adjustment collar with the suspension element.

The invention relates to the technical field of intelligent manufacturing control, in particular to an MEMS device process error simulation and feedback control system which comprises a response data acquisition module, a coupling relation analysis module, a change parameter extraction module, a model construction module and an instruction generation module. According to the method, dynamic time sequence data of multi-point displacement and stress in the device are collected in real time in the whole process of the manufacturing process, the response relation between the dynamic time sequence data is deeply analyzed, traditional macroscopic measurement of static geometric errors can be exceeded, and in other words, the dynamic time sequence data are obtained from mechanical behaviors in the device. By calculating the ratio of the direction consistency to the change rate of stress vectors among different structural parts, the coupling effect strength among the stress vectors is quantified, the key transmission path of the process stress is identified, and the internal mechanism of how local stress finally causes performance deviation of a core functional area through structural coupling is revealed. For example, how stress concentration on the supporting arm specifically causes displacement and angle inclination of the boundary of the capacitor plate can be determined.

This invention discloses a bridge-tunnel co-construction method based on adaptive construction parameters, specifically relating to the field of bridge-tunnel collaborative construction technology. It collects disturbance response parameters such as foundation settlement rate, pile foundation lateral displacement, and tunnel arch convergence rate to form a set of construction disturbance parameters. This set is input into a structural coupling identification model to extract the pile-arch relative stiffness ratio, pile end support reaction difference, and tunnel deformation anomaly values, constructing a structural coupling state feature vector. Based on this, an optimal construction sequence combination strategy is matched to implement bridge-tunnel coupled construction. During construction, the disturbance response parameters are updated in real time, compared with historical curves, and the disturbance offset is calculated. When the offset exceeds a preset tolerance threshold, iterative updates of features and strategies are automatically triggered until the disturbance stabilizes. This method enables dynamic adjustment of construction sequences and structural collaborative control of bridge-tunnel connection sections, significantly improving the adaptability, safety, and construction efficiency of bridge-tunnel co-construction projects under complex geological conditions.

The application discloses a rotor coupling dynamics calculation method of complex three-dimensional shape layout. A coordinate conversion relationship caused by a front protrusion / after-sweeping / downward-reversing configuration is established; nonlinear elastic deformation of elastic blades waving, oscillating and twisting and nonlinear coupling relationship among them are described; nonlinear motion caused by the complex three-dimensional shape layout is described based on the coordinate conversion relationship and the nonlinear coupling relationship; and the relationship among strain energy, kinetic energy and virtual work of external force of the rotor is established based on the Hamilton principle according to the description of the nonlinear motion, and a finite element method of a 15-degree-of-freedom beam element is used to establish a rotor dynamics equation. The application can effectively reflect the structural coupling characteristics and coupling degree of the waving-torsion direction caused by the front / rear sweep of the blade tip, effectively reflect the structural coupling characteristics and coupling degree of the oscillation-torsion direction caused by the upward / downward reversal of the blade tip, and effectively reflect the rotor dynamics characteristic behaviors caused by the three-dimensional shape of the blade.

The invention discloses a device capable of localizing a surface acoustic wave center. The device comprises a device body and hard boundaries arranged on the upper surface and the lower surface of the device body. The device body comprises a plurality of primitive cells arrayed in the Z direction and an A-layer assembly arranged on the lower surface of the bottommost primitive cell. Each primitive cell comprises a B-A coupling layer assembly, a B-layer assembly, an A-B coupling layer assembly and an A-layer assembly which are sequentially stacked from bottom to top; pi phase difference delay exists between the A-layer assembly and the B-layer assembly. The primitive cell is constructed to be composed of a plurality of non-periodic structural units; the structural unit comprises a B-A coupling unit and a structure B which are arranged from bottom to top, the coupling strength of the A-B coupling unit and the coupling strength of the structure A are different, and the coupling strength of the A-B coupling unit and the coupling strength of the B-A coupling unit are different; rotation parameters are introduced into an X-Y plane in a three-dimensional space where the device is located, so that the primitive cell center has a vortex center, and the period of the primitive cell in the Z direction is of a limited size. Through the device, a zero-dimensional topological angular state can be formed, and surface acoustic waves are localized in the center of the top surface of the device.

The invention relates to a transmission unit (12) for adjusting a headlight, comprising a flexible shaft (22) and a fixing unit (16) having two end regions and an axis of rotation, the first end region being provided with a positive locking structure (18) for coupling to a drive positive locking structure (14e) of an adjusting element to be driven, the second end region being provided with a positive locking structure (18) for coupling to a drive positive locking structure (14e) of the adjusting element to be driven. Therefore, the rotating motion around the rotating axis can be transmitted; wherein the fixing unit (16) is axially and fixedly connected to the flexible shaft (22) in a second end region in order to achieve a synchronous rotation in such a way that a rotational movement can be transmitted from the flexible shaft (22) to the positive locking structure (18). The invention is characterized in that the fastening unit (16) comprises a snap sleeve (20) and a clamping sleeve (18), the snap sleeve (20) being configured such that it can be moved relative to the clamping sleeve (18) from an introduction position (EP) to a clamping position (KP) in a locking direction (AR), the locking direction (AR) being parallel to the axis of rotation; wherein the clamping sleeve (18) has a clamping wall which is provided with at least one cutout which is open on the end side and which has two cutout edges which face each other in the circumferential direction, a circumferential clamping region being formed axially at least in the region along the at least one cutout; wherein the clamping sleeve (18) has an open cross-section and forms an insertion width when the snap sleeve (20) is in an insertion position (EP), and wherein the snap sleeve (20) interacts with the clamping sleeve (18) in a clamping position (KP) such that the clamping sleeve (18) is inserted into the clamping position (KP) by an axial displacement of the snap sleeve (20). According to the invention, the distance between the cutout edges (19a, 19b) and the opening cross-section of the clamping sleeve (18) in the clamping region are at least partially deformed by the clamping wall to form a clamping width, which is reduced in size compared to the introduction width.

The present application relates to a kind of multi-foot coupling spoke and tire for non-pneumatic tire, spoke includes first leg structure, second leg structure and third leg structure, first leg structure and second leg structure are connected in V type, third leg structure is connected in V type with second leg structure, the end of third leg structure is equipped with first coupling surface, second coupling surface is equipped with in the opposite side surface of second leg structure with the side of third leg structure, first coupling surface can coincide with second coupling surface in translation process.The third leg structure of present application is arranged, and the third leg structure is coupled and connected with second leg structure, realizes circumferential coupling arrangement, substantially reduces the stress of originally bearing tension side, avoids interface and rubber body due to repeated tension and leads to the failure of adhesive surface, such as rubber fatigue tear phenomenon.The multi-foot coupling spoke improves the vertical stiffness of spoke, enhances the carrying capacity, further improves its carrying stability.

The application provides a double-line shield tunnel optimization design method, device and equipment considering soil-water-structure coupling, and relates to the technical field of underground engineering and tunnel engineering. The method comprises the following steps: obtaining a construction stage stratum displacement field considering double-line mutual disturbance; establishing a groundwater seepage model to obtain a pore water pressure distribution and determine a consolidation additional displacement field; superimposing the construction displacement field and the consolidation additional displacement field to obtain a comprehensive stratum displacement field; analyzing the internal force and deformation response of the lining structure based on the comprehensive stratum displacement field; determining design indexes according to the response; if the design indexes do not meet the preset allowable value, adjusting the design parameters and repeating the above steps until all indexes meet the requirements. The application takes the stratum displacement field as a unified carrier, realizes continuous transmission and closed-loop optimization of construction effect, consolidation effect and structure response, and improves the reliability and consistency of double-line shield tunnel design.

This invention discloses a coupling system and a swimming pool cleaning system. The coupling system includes a coupling unit and a position detection unit. The coupling unit includes a coupling component I and a coupling component II. One of the coupling components I and II includes a protruding structure, and the other includes a groove structure coupled to the protruding structure. The position detection unit assists in the coupling of the coupling components I and II. The coupling system of this invention has the advantages of simple structure and high coupling efficiency.

The present application relates to a kind of mine dump truck wheel hub drive unit conceptual design method, to establish the technical system of the positive design of large tonnage mine dump truck wheel hub drive unit, including from the selection of structural form, the determination of transmission route, overall structure design and transmission system parameter optimization and component strength check and life calculation.Optimal scheme in feasible transmission route is explored according to accurate multi-working condition load spectrum, vehicle operation requirement, boundary condition of wheel hub drive, relevant component structure coupling requirement etc.;In the selected gear transmission route, according to the space arrangement of wheel hub drive, and the advantages and disadvantages of transmission form, determine to adopt transmission schematic diagram;According to the assembly condition of planetary row, adjacency condition, coincidence degree, concentricity condition and other constraint requirements, optimize the gear parameters with light mass and balanced load capacity under the premise of meeting the use strength.The complete design process of large tonnage mine dump truck wheel hub drive unit conceptual scheme is realized.

The invention relates to the technical field of pipeline repair, in particular to a drainage pipeline non-excavation repair optimization method based on hydraulic structure coupling simulation. Effective bearing wall thickness distribution description quantity and stress concentration coefficient distribution are introduced, modeling is conducted on the defect depth and defect length of the drainage pipeline in the axial direction, equivalent circumferential driving pressure is constructed by combining internal pressure, soil pressure, ground load and underground water pressure, and the thickness needing to be repaired is calculated point by point according to the axial position based on a judgment mechanism of the structural safety margin. According to the method, repair is in spatial self-adaptive distribution, the pertinence of structure safety is improved, on-way loss and local loss are calculated respectively in combination with the influence of repair thickness distribution on the inner diameter of the pipeline, and quantitative evaluation of the drainage capacity after repair is achieved; and through coupling optimization of structural safety constraint, hydraulic performance constraint and stability constraint, iterative adjustment of the repairing thickness is achieved.

A structural coupling for a suspension support system includes a coupling body (12) and a structural fastener (14) coupled to the coupling body and configured to secure the structural coupling to a structural support. A rod fastener (16) couples to the coupling body and defines at least one threaded opening (62A) configured to engage with a threaded rod. The rod fastener is selectively movable relative to the structural fastener to adjust an angle between an axis of the threaded opening and a longitudinal axis of the structural fastener.

The invention discloses a chip fan-out type packaging method and a chip fan-out type packaging structure, and aims to overcome the defect that a chip deviates in the curing process. According to the invention, a first platform is provided with a first bonding layer, and the first bonding layer is provided with a packaging assembly; the packaging assembly comprises a chip, a cofferdam structure and a plastic packaging layer, the cofferdam structure is arranged on a first bonding layer, the chip is arranged in the cofferdam structure, the active surface of the chip is attached to the first bonding layer, the plastic packaging layer is arranged on the passive surface of the chip and the outer surface of the cofferdam structure, and the cofferdam structure is arranged on the outer surface of the cofferdam structure. The plastic packaging layer fills a gap between the chip and the cofferdam structure, and the chip is embedded and packaged in the plastic packaging layer. Through structural coupling of the thinned chip and the photoetching cofferdam, chip limiting and high-precision position keeping in the plastic packaging process are considered.

The invention belongs to the technical field of aerodynamic / structural design of aircrafts, and discloses an aerodynamic-structural coupling data transmission optimization method and system.The method comprises the steps that a k-d tree is constructed according to initial structural grid node coordinates, the aerodynamic-structural gap scale and the structural grid spacing scale are calculated through k nearest neighbor query, and a k-d tree is constructed; determining a self-adaptive neighborhood and a self-adaptive kernel width; carrying out load-displacement transmission to obtain structural grid node load and pneumatic grid node displacement; according to the structural grid node load obtained in the round, if the load distribution uniformity reaches the standard, deforming the pneumatic grid node coordinates, and solving the structural displacement and the pneumatic load in the round; otherwise, re-determining the self-adaptive neighborhood and the self-adaptive kernel width until the load distribution uniformity of the round reaches the standard; and returning to start a new round of iteration until an iteration ending condition is met. According to the method, the space uniformity of a structure side load field and the smoothness of a displacement field are remarkably improved, and the numerical robustness and the engineering applicability in the load transmission process are improved.

This invention discloses a structural thermo-mechanical coupling method and apparatus considering isogeometric analysis, belonging to the field of thermodynamics. The method includes: S1. Establishing an isogeometric NURBS model: providing the basis for expressing geometric and physical fields for thermo-mechanical coupling analysis, achieving seamless integration of CAD and CAE; S2. Calculating the transient temperature field based on the central difference method: obtaining the temperature distribution of the structure at different times, providing temperature input for subsequent thermo-mechanical coupling; S3. Transforming the temperature field into equivalent temperature loads: converting the thermal effects caused by temperature changes into equivalent loads identifiable by structural mechanics analysis; S4. Solving the stiffness equation of the structure under the combined action of external forces and temperature: obtaining the displacement matrix of the structural control points; S5. Solving the structural coupling field based on the displacement matrix: obtaining all key physical quantities in the thermo-mechanical coupling field, completing the coupling analysis. This invention can verify the feasibility of applying isogeometric analysis in coupled fields.

The invention discloses a preparation device of a structure coupling carbon-carbon composite material, and relates to the technical field of composite material preparation devices, the preparation device comprises a first atomization spraying system, a first liquid inlet unit, a second atomization deposition system and a second liquid inlet unit; the first liquid inlet unit provides a catalyst solution for the first atomizing and spraying system; the first atomizing and spraying system is used for atomizing a catalyst solution, spraying the prefabricated body in the spraying cavity in multiple directions and drying the prefabricated body sprayed with the catalyst solution; the second liquid inlet unit provides a carbon source precursor for the second atomization deposition system; and the second atomization deposition system atomizes and sprays the carbon source precursor into the deposition cavity and can heat the carbon source precursor in the deposition cavity, so that the atomized carbon source precursor is deposited on the preform. The preparation device of the structure coupling carbon-carbon composite material provided by the invention can improve the preparation efficiency and qualified rate of the integrated structure of the carbon-carbon composite material.

The application provides a concrete structure coupling construction method suitable for super-high ancient city wall construction. First, stone materials are subjected to slotting treatment, then hoisting and mortar setting treatment at the stone slot, and the process is repeated until all the stone blocks of the first batch are installed. Then, the first batch of structural wall steel reinforcement frameworks are bound, and the stirrups and reinforcement of the structural wall hidden beam, the tie reinforcement of the structural wall, and the formwork are installed and the concrete is poured to complete the first batch of stone blocks, the structural wall body and the structural wall hidden beam body. Then, other batches of structures are constructed by repeating the process. The application does not need to construct a large foundation, but realizes common stress by slotting mortar, tie reinforcement, structural wall hidden beam, stirrup, reinforcement and other structures, ensures the stability of the super-high ancient city wall stone blocks, ensures the construction quality, and is more convenient, time-saving and labor-saving in the construction process. Compared with the traditional construction method, the construction cost is lower.

This invention relates to the field of static multi-point coordinated loading of wind turbine blades, and discloses a static multi-point coordinated loading control system for wind turbine blades, including a sensing module, an execution module, and a central control unit. The sensing module is used to collect real-time loading data of the loading nodes on the blade. The central control unit includes a real-time calculation module and a feedforward control module. The real-time calculation module calculates the real-time stiffness based on the real-time tension value and the real-time displacement value. Preset data is input, and the feedforward control module calculates the feedforward control quantity based on the preset data, including the target tension curve and the structural coupling relationship. The execution module initially adjusts the loading speed on the loading nodes based on the feedforward control quantity. This establishes a representation model of "force-displacement-stiffness" coordination, constructs an intelligent control architecture that integrates multi-dimensional sensing data and performs feedforward compensation based on the structural coupling relationship, and forms an adaptive closed-loop control based on the real-time state of the blade.

This invention belongs to the field of radio frequency engineering technology, specifically disclosing a high-power dual-directional coupler and method based on an arc-shaped semi-circular coupling structure. The coupler includes: a housing body with a sealed electromagnetic shielding cavity inside; a dielectric support pillar inside the cavity, with a coaxial conductor running through it; two arc-shaped metal plates arranged in a semi-circular manner on the outer surface of the dielectric support pillar, with a predetermined gap between them; a filler block between the housing body and the arc-shaped metal plates, with a mounting groove inside the filler block that matches the shape of the arc-shaped metal plates; the two arc-shaped metal plates, along with the dielectric support pillar and coaxial conductor inside, form a coupling structure that is tightly embedded in the mounting groove, achieving a three-dimensional, rigid, enveloping fixation of the coupling structure by the filler block. This invention's dual-directional coupler can stably carry continuous wave radio frequency power in the tens of kilowatts range for extended periods, completely solving the fundamental power bottleneck of traditional planar couplers.

The invention discloses a design method of a turbine disc characteristic simulation piece with bolt hole induced end tooth crack propagation, and belongs to the technical field of aero-engine fatigue fracture tests. The method comprises the following steps: designing an initial shape of a simulation piece dominated by arc end teeth; through double-stage static strength analysis, the characteristic sizes of bolt holes and the like are preferentially and alternately adjusted so as to be matched with a crack-free stress field of a real turbine disc; introducing a surface crack at a dangerous point, and optimizing the crack size by taking J integral of a crack tip and a correction stress gradient from a bolt hole to the crack tip as double standards; an initial defect with the controllable size is machined through the electric spark technology; and finally, on the basis of direct-current potential drop technology monitoring, the crack is prefabricated to the target size from the defect through the fatigue load. According to the invention, high-fidelity simulation of the crack propagation behavior under the structure coupling effect is realized, and a low-cost and high-reliability test means is provided for life prediction and safety evaluation of the turbine disc.

The invention discloses an experimental device and method for testing the shock absorption and energy dissipation effect of a bulk solid. The experimental device comprises a steel column, a steel plate base, a sliding block, a square bin, a spring and a guide rod. The four steel columns are vertically arranged, the lower ends of the steel columns are connected with the vibration table through the steel plate base, the steel plate base is provided with mounting holes, the two guide rods are arranged between every two adjacent left and right steel columns in parallel, the square bin is made of acrylic plates and located among the four guide rods, the guide rods are in sliding fit with two sliding blocks, and the sliding blocks are connected with one corner of the side face of the square bin. And the rod body of the guide rod is sleeved with a spring between the sliding block and the steel column. According to the invention, real boundary conditions can be simulated, inertia force and contact force can be separated and measured, and the device and the method are used for researching a bulk solid damping energy consumption effect and a friction energy consumption characteristic of a bulk solid-structure coupling interface.

The invention provides a design method of a ram for a machine tool and the ram for the machine tool, and relates to the field of design of the ram for the machine tool. S02, a thermal symmetry reference axis in the ram design process is defined; s03, the transverse rib plates in the ram are arranged with the thermal symmetry reference axis defined in the step S02 as the symmetry axis, so that the transverse rib plates located on the opposite inner walls are symmetrically arranged about the thermal symmetry reference axis; s04, establishing a finite element model of the ram, applying the heat source load obtained in the step S01, and performing heat-structure coupling simulation; and S05, evaluating a design effect, and optimizing the layout until thermal deformation is inhibited to be within a tolerance range. Thermal deformation of the ram can be greatly reduced, and the machining precision is improved.

The application discloses a preparation device for structure-coupled carbon-carbon composite material and relates to the technical field of composite material preparation devices.The preparation device comprises a first atomization spraying system, a first liquid inlet unit, a second atomization deposition system and a second liquid inlet unit.The first liquid inlet unit provides a catalyst solution to the first atomization spraying system.The first atomization spraying system atomizes the catalyst solution and can spray the catalyst solution in multiple directions on a preform in a spraying cavity, and can also dry the preform after the catalyst solution is sprayed on the preform.The second liquid inlet unit provides a carbon source precursor to the second atomization deposition system.The second atomization deposition system atomizes the carbon source precursor and sprays the atomized carbon source precursor into a deposition cavity, and can heat the deposition cavity to make the atomized carbon source precursor deposit on the preform.The preparation device for structure-coupled carbon-carbon composite material can improve the efficiency and qualified rate of the preparation of the integrated structure of the carbon-carbon composite material.

This invention discloses an intelligent control method and system for the construction quality of UHPC wet joints, specifically relating to the field of automatic control technology for construction processes. It addresses the problem of inaccurate control caused by environmental vibration interference in existing wet joint construction. The method involves collecting vibration signals from multiple preset locations on the wet joint structure, extracting first-type frequency domain features related to construction operations and second-type frequency domain features related to environmental disturbances, identifying vibration types based on feature energy distribution and transient characteristics, analyzing the attenuation gradient of energy values ​​with distance when identified as construction vibration to assess structural coupling, evaluating the concentration of the first-type frequency domain features based on structural coupling to assess construction vibration stability, adjusting the control parameters of the vibration equipment, and finally executing the adjusted control parameters to control the vibration operation, thereby achieving intelligent control of the construction quality of wet joints.

The present invention relates to a modular slide for a firearm, particularly applicable to semiautomatic pistols that operate by means of a blowback system during the firing cycle. The invention comprises a base slide structure (1) configured to move longitudinally on the firearm frame and including weight-reducing openings (1g) intended to reduce the component's mass while maintaining the structural strength necessary for its operation. The base structure further comprises structural coupling interfaces (1h) intended to allow the removable installation of interchangeable panels (2) on at least one side or top surface of the slide, at least partially covering said openings. The panels have a functional outer surface that may incorporate reliefs or textures intended to improve the user's grip during slide manipulation.Additionally, the panels can be manufactured with materials that provide ergonomic properties, thermal dissipation, vibration damping, identification or integration of sensors, keeping the mass and center of gravity within a functional range for the proper functioning of the weapon.

This invention relates to the field of fluid-structure interaction (FSI) technology, and discloses a method, apparatus, device, and medium for simulating fluid-structure coupling. The invention establishes a first mapping relationship between SPH boundary particles and FEM surface nodes, and in the iterative calculation, utilizes the allocation weights of the FEM surface nodes to distribute fluid forces to the corresponding surface nodes, improving the accuracy of load transfer at the FSI interface. A second mapping relationship is established between SPH boundary particles and FEM element nodes, and in the iterative calculation, the interpolation weights of the FEM element nodes are used to update the physical quantities of the SPH boundary particles based on the updated node physical quantities, ensuring the accuracy of kinematic information transfer at the coupling interface. By sequentially performing fluid force calculation, load allocation, FEM solution, and boundary particle interpolation update in each iteration step, this invention can completely and accurately simulate the dynamic process of fluid-structure interaction.

The invention discloses an assembly type rice hulling rubber sleeve and a coreless rice hulling rubber roller, and belongs to the technical field of rice processing equipment. The rice hulling rubber sleeve is a cylindrical rubber body, a plurality of protruding connecting structures are evenly distributed on the inner circumferential face of the rice hulling rubber sleeve and used for being coupled with corresponding structures on a supporting roller or a fast and slow shaft of the rice huller, and detachable fixing is achieved. The coreless rice hulling rubber roller comprises a rigid supporting roller and the rice hulling rubber sleeve arranged outside the rigid supporting roller in a sleeving mode. A spiral female groove is formed in the outer circumferential face of the supporting roller, a protruding connection structure on the inner circumferential face of the rubber sleeve is a spiral male tenon matched with the protruding connection structure, and the protruding connection structure and the rubber sleeve are embedded to transmit torque. The cross section of the spiral male tenon is in a dovetail shape or a similar self-locking shape, and the spiral male tenon and the spiral female groove form a reverse self-locking tenon-and-mortise structure. The spiral direction is opposite to the working rotation direction; and the matching surface has axial taper. Chemical bonding is replaced by physical connection, rapid online replacement of the rubber sleeve is achieved, and the rubber sleeve has the advantages of being reliable in connection, stable in operation, environmentally friendly and low in cost.

The invention discloses a method for calculating parameters of an asymmetric three-roller steel plate bending forming process, which comprises the following steps of: aiming at a steel plate cold bending forming process of a positive pressure asymmetric three-roller plate bending machine, establishing a loading-unloading full-flow mechanical model considering material elastoplasticity, positive pressure distribution and asymmetric roller system structure coupling; on the basis of the model, the coupling influence rule of positive pressure parameters, asymmetric structure parameters (the offset of an upper roller and the center distance of two lower rollers) and geometric parameters on the forming radius is analyzed, and a steel plate forming radius accurate pre-judgment calculation algorithm fusing positive pressure regulation and control is formed; based on a mechanical model, residual stress distribution of the steel plate under the synergistic effect of positive pressure and asymmetric rolling is calculated, and accurate stress reference and process guidance are provided for machining processes such as subsequent welding and assembling of the asymmetric cylinder. The plate bending machine has important significance on efficient, accurate and low-cost construction of asymmetric large-diameter cylinders in oceanographic engineering, and can provide core technical support for automatic and energy-saving upgrading of the plate bending machine at the same time.