13 results about "Lateral deflection" patented technology

The present application relates to a kind of pre-tensioned steel wire rope lateral impact response calculation method considering geometric and friction nonlinear coupling.First, the linear tensile constitutive model of pre-tensioned steel wire rope is constructed, Von Kármán large deflection theory is introduced, and the geometric hardening relationship of the nonlinear growth of axial tension with lateral deflection is established;Subsequently, a bilinear bending stiffness model is constructed to calculate the critical anti-sliding torque that evolves dynamically with tension;Based on the principle of energy conservation and Rayleigh-Ritz method, the system total potential energy functional of axial tensile potential energy and nonlinear bending potential energy is constructed, and the maximum impact deflection and tension response of the steel wire rope are obtained by solving the energy residual equation, the maximum response is substituted back into the constitutive equation, and the maximum nominal stress of the midspan cross section, the maximum axial tension and the extension length of the internal slip zone are calculated.The present application has very high calculation efficiency compared with full-size finite element simulation, and is suitable for the rapid design and safety evaluation of steel wire rope protection system.

This utility model discloses an anti-kink rigid lifting lug device, belonging to the field of lifting lug technology. It includes a connecting pipe and steel pipes respectively installed at both ends of the connecting pipe. Lifting lugs are installed on both steel pipes, and welding plates are provided on the inner side of each lifting lug. Two mounting holes are provided on the lifting lugs, with a bearing fixedly installed in the upper mounting hole. This utility model allows the outer wall of the welding plate to be flush with the outermost derrick of the vertical shaft. Two upper steel plates of the welding plate are welded to the outer crossbeam of the vertical shaft derrick, and the lower steel plate is welded to the side wall of the outer vertical beam. During welding, care is taken to ensure that the center line of the upper and lower mounting holes of the lifting lugs is parallel to the vertical beam of the vertical shaft derrick. The lifting buckle on the pulley block is installed in the bearing on the lifting lug. Because the lifting lug is welded and fixed to the steel pipe, it provides support on both sides and is in a rigid connection, preventing the vertical shaft derrick from lateral deflection during lifting. This ensures that the upper and lower pulley blocks are subjected to vertical force in the same direction, preventing the lower pulley block from twisting under force.

This invention discloses a method, system, and medium for real-time prediction of the response of a single pile in spatially variable clay. The method includes: establishing a stochastic finite element model of the pile foundation and characterizing the spatial variability of the undrained shear strength of marine clay to generate a pile response dataset. The pile response data in the dataset includes the pile's lateral deflection, rotation angle, bending moment, and shear force. Four depth operator network models are constructed and trained based on the pile response dataset. The trained depth operator network models are then used to predict the lateral deflection, rotation angle, bending moment, and shear force of the pile in real time. This invention overcomes the bottleneck of low computational efficiency in existing stochastic finite element models, constructs an efficient prediction model, and enables rapid and accurate prediction of the single pile response.

This invention provides a bridge tensioning control method, device, electronic equipment, and storage medium. The method includes: determining whether the current tensioning process is the first tensioning process; if so, performing a first-stage synchronous tensioning operation according to a tensioning method that synchronizes elongation; acquiring the elongation deviation and force deviation between the tensioning jacks at both ends of the steel strand; determining a first target tensioning method based on the elongation deviation and force deviation, and performing a next-stage synchronous tensioning operation based on the first target tensioning method; jumping back to the step of "acquiring the elongation deviation and force deviation between the tensioning jacks at both ends of the steel strand," and continuing with subsequent steps to complete the first tensioning process. This invention can avoid the problem of lateral deflection of the bridge.

This invention discloses a ground effect vehicle, comprising a fuselage and a bionic wing. The fuselage has a main wing in its midsection. The bionic wing is connected to the bottom of the main wing and is driven to swing around an axis perpendicular to the wing surface. In use, the bionic wing passively swings adaptively with the environment to streamline the wake, reduce induced drag, and suppress lateral deflection, thereby improving the stability of water gliding and low-altitude flight. The bionic wing does not require an independent drive mechanism and complex control logic, greatly simplifying the structure and reducing the failure rate. During cruise, the bionic wing swings naturally with the tail flow field, breaking up concentrated wake vortices into smaller vortices, accelerating vortex dissipation, significantly reducing induced drag and energy consumption. During water takeoff and landing, the bionic wing is immersed in the water and passively swings with the water flow to generate a restoring torque, automatically suppressing directional yaw caused by waves and improving wave resistance stability. It is suitable for long-term unmanned inspection operations on the sea surface.

This invention relates to the field of building foundation pit deformation detection technology, specifically a machine vision-based method for detecting the deformation of anti-buoyancy anchor bolts. The method includes setting a high-contrast array of artificial marker points on the anchor bolt observation section, and using a fixed industrial camera to periodically acquire image sequences. An improved template matching algorithm is used to locate the pixel coordinates of the marker points, which are compared with a reference image to obtain a two-dimensional pixel displacement vector. This vector is then converted into a local three-dimensional spatial displacement by combining the camera's intrinsic and extrinsic parameters, constructing a three-dimensional displacement field. This three-dimensional displacement field drives a parameterized elastic foundation beam flexural deformation model to solve for and invert the axial strain distribution and lateral deflection curves of the anchor bolt. This method achieves non-contact, full-domain three-dimensional deformation acquisition. By coupling the three-dimensional displacement field with the foundation beam model, axial strain and lateral deflection can be acquired simultaneously, improving the completeness and accuracy of anti-buoyancy anchor bolt deformation detection.

The utility model relates to detection device technical field especially relates to building pipeline leakage detection device, including pipeline, the pipeline outside in proper order encircle and carry out the adaptive positioning leakage detection one -level pipe clamp leakage detection subassembly, two -level pipe clamp leakage detection subassembly and three -level pipe clamp leakage detection subassembly, one -level pipe clamp leakage detection subassembly, two -level pipe clamp leakage detection subassembly and three -level pipe clamp leakage detection subassembly both sides center all are equipped with the auxiliary rod that guides the adjustment along the pipe diameter traction, through one -level to three -level pipe clamp subassembly through the auxiliary rod and spring traction rope form distributed detection, when detecting, three -level assembly synchronous along the pipeline axial movement, counterweight bending plate and strong magnetic plate pass through spring column dynamic adjustment gravity center, offset when the lateral deflection moment of long pipeline detection, make overall device gravity always close to pipeline axis, reduce overall error degree, ultrasonic interaction module combines infrared camera, realize sound -light multimode data acquisition, improve overall leak point positioning accuracy.

This invention provides an explosion-proof central switchgear, relating to the field of high-voltage switchgear, including a middle frame, a double-door assembly, a grille, and a rear cover. This invention constructs a protective structure coupled with graded pressure relief and airflow path control by setting up a first assembly, a second assembly, and a first and second region formed by the grille. Specifically, when a low-pressure arc fault occurs inside the cabinet, the air pressure pushes the second plate of the second assembly to slide backward against elastic force, exposing a connecting opening on the grille. High-temperature, high-pressure gas inside the cabinet enters laterally into the first region through the connecting opening, and then is directionally discharged outside the cabinet through a first air hole on the side of the middle frame. During this process, the alternating arrangement of the first and second regions and the lateral opening of the connecting opening force the airflow to undergo multiple lateral deflections during the venting process, forming a serpentine flow path, significantly increasing airflow resistance and pressure loss along the flow path.

The application discloses a kind of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems, including hydraulic oil source module, servo loading module, attitude control module and brake module;Wherein attitude control module includes lateral inclination module, vertical module, lateral movement module, the main oil way of hydraulic oil source module is divided into two roads and enters servo loading module and attitude control module respectively, each module is connected with corresponding oil cylinder by element, and each module is simulated to the different control effect of aircraft tire by each oil cylinder action, to complete corresponding test.The application can fully meet the requirements of vehicle-mounted aircraft landing gear tire loading simulation test hydraulic systems of sliding test, falling experiment and obstacle test, the application is good in universality, can simulate the lateral inclination angle range of landing gear tire under different working conditions, lateral deflection angle range, vertical loading formation, lateral adjustment stroke, detect the reliability of aircraft landing gear tire under different working conditions.

The invention discloses an obstacle crossing and deicing device for a power transmission line, which comprises a mounting rack, and is characterized in that the mounting rack is provided with a deicing mechanism and at least three groups of advancing mechanisms arranged along the advancing direction of the power transmission line; the advancing mechanism comprises an advancing support arm in contact with a power transmission line and a driving wheel arranged on the advancing support arm, and the advancing mechanism is connected with the mounting rack through the three-degree-of-freedom parallel mechanism; the three-degree-of-freedom parallel mechanism comprises a fixed platform, a movable platform and at least three driving branch chains with the lengths capable of being independently controlled, and the advancing support arm is driven to achieve composite space pose transformation including lifting and lateral deflection by coordinately controlling the lengths of the driving branch chains, so that the advancing support arm can actively adapt to space distribution of obstacles along a power transmission line, and the power transmission line is driven to move. Stable obstacle crossing advancing is realized; meanwhile, through cooperation of the driving wheel and the clamping assembly, the stability and the bearing capacity in the advancing process are improved; the device is simple in structure and high in obstacle crossing adaptability, and the safety and reliability of deicing operation of the power transmission line can be effectively improved.

The application discloses an intelligent monitoring method for a cantilever structure climbing frame attached lattice column, and relates to the field of cantilever structure climbing frame attached lattice column, which comprises the following steps: constructing a critical instability database of the lattice column, providing a basis for monitoring data linkage critical state, determining three-dimensional core load parameters and test thresholds in combination with the actual stress field of the lattice column, carrying out indoor orthogonal critical instability tests based on the three-dimensional load parameters, collecting lateral deflection, vertical displacement, column axial force and strain data of the lattice column under different load combinations, on-site monitoring and data collection, and differentiating sensor arrangement for key monitoring points. By adopting miniaturized and high adaptability sensors and implementing differentiated encryption arrangement, in combination with multi-channel synchronous collection and data preprocessing, the application is beneficial to obtaining micro-deformation and internal force data that cannot be captured by traditional manual observation, is convenient for solving the safety hazards caused by data loss, and provides complete data support for subsequent evaluation.

This invention discloses a visual detection-based adaptive control method and system for scraper conveyor chain deflection, belonging to the field of intelligent control technology for mining machinery. The method includes: deploying a visual detection device on the scraper conveyor trough to acquire images of the scraper chain's operation and, through sequence deflection recognition, obtaining the lateral deflection angle and the rate of change of the deflection angle; constructing a scraper chain deflection state discriminator based on the rotational structure characteristics of the deflection chain loop, performing anomaly detection, and outputting abnormal deflection state parameters; calling the deflection strategy control channel to parse the target deflection control parameters, driving the deflection control module to execute scraper chain deflection control and monitor and provide feedback, thus achieving adaptive closed-loop control. This invention solves the technical problems of traditional detection methods being unable to accurately capture deflection-related states in real time, accurately identify deflection anomalies, and dynamically match and adapt control strategies, achieving adaptive control of the scraper conveyor chain deflection, and improving the technical effect of improving equipment operation stability and control accuracy.