450 results about "Catenary" patented technology

The invention discloses an automatic fastening system and method for overhead line system cantilever bolts. The system comprises a maintenance car, a visual ranging parking unit, a laser radar sensing unit, a mechanical arm execution unit, a force feedback control unit, a tail end execution unit, a digital twin unit and an operation management platform. The method comprises the following steps: S1, guiding a maintenance car to stop below a cantilever of the overhead line system; s2, scanning an overhead line system cantilever, generating a three-dimensional model and positioning a bolt; s3, planning a collision-free path; s4, smooth alignment of the bolt sleeve is achieved; s5, bolt fastening is completed according to the preset torque; s6, synchronously displaying the operation progress, and storing whole-process operation data; and S7, performing anomaly detection and task continuous transmission on the whole process, and performing data archiving and early warning. Intelligent and automatic bolt fastening operation is achieved for the first time in the field of railway contact network maintenance, and an effective solution is provided for improving the railway operation and maintenance efficiency and safety.

A control system for a towed object (1, 6; 20; 30; 50) in or on a body of water comprise one or more towing members (3) extending between the object (1) and a towing vessel (2). One or more ballast members (4) are movably connected to a respective one of said one or more towing members (3) and controllably movable at least a distance along its respective towing member. The towed object (1) may be controlled by moving one or more ballast members (4) on a towing member (3) in order to control the catenary (c) of a towing member (3). Individual ballast members (4) may be manipulated individually in order to correct, preserve or otherwise change the geometry of a trawl.

The invention relates to the technical field of railway catenary monitoring, in particular to a multi-source sensing fusion method and system for state evaluation of a catenary compensation device, and the method comprises the steps: obtaining multi-source sensing data such as vibration, temperature and current, generating a phase space trajectory through employing a self-adaptive phase space reconstruction technology, and carrying out the state evaluation of the catenary compensation device; multiple topological features are extracted to form topological feature vectors, and the vectors are combined with temperature and current data to construct a fault probability model. According to the method, the health degree score of the contact network compensation device can be calculated, trend prediction can be carried out, early warning information can be generated, high-precision early warning is realized, the clamping stagnation risk of the pulley block can be predicted three months in advance, passive response is converted into active prevention, the maintenance efficiency and safety of the contact network are remarkably improved, and the maintenance cost is reduced. By means of the innovative technology, the safety of railway operation is improved, the maintenance cost is reduced, and revolutionary transformation is brought to the railway industry.

The invention discloses a method and a system for evaluating the reliability of a contact network system under an icing galloping condition. The method comprises the following steps: collecting icing galloping data of the overhead line system in real time, and carrying out load conversion and statistics on parts of the overhead line system in icing galloping by adopting a rain flow counting method; the reliability of parts under the icing galloping condition is calculated through the Miner cumulative damage theory, and weight distribution of the overhead line system is conducted through an analytic hierarchy process; based on the reliability and the weight distribution result of each part under the icing galloping condition, evaluating the reliability of the overhead line system of the data acquisition anchor section until the evaluation task is finished; the method and the system provided by the invention are suitable for evaluating the operation reliability of the contact network system in the icing galloping section, can provide support for operation and maintenance of the contact network system after icing galloping occurs, and have wide application prospects.

The invention provides a metro section parameterized linear digital model construction method based on Revit and Dynamo, and the method comprises the steps: building a three-dimensional space control reference through analyzing track line design data, and constructing a metro section model in a manner of combining parameterized modeling with an intelligent algorithm; the contact network and pipeline models are ensured to meet the standard requirements through real-time verification of the conductor height change rate and the turning radius-pipe diameter matching matrix; space coordinate unification and interface matching precision control are achieved through a multi-professional model cooperation system, and a parameter linkage updating mechanism is established to respond to design changes; and finally, outputting an LOD400 precision BIM model and associating construction data for dynamic correction, and supporting RVT / IFC format conversion and engineering quantity automatic statistics. The method is mainly used for efficient collaborative design and construction management and control of metro sections, the modeling precision and the multi-specialty coordination efficiency can be improved, and the design error rate is reduced.

The invention belongs to the technical field of geospatial information systems, and particularly relates to a component-level catenary three-dimensional model lightweight three-dimensional tile conversion method, which comprises the following steps: S1, forming a component-level fine model data set with semantic annotations; s2, constructing a detail level division rule; s3, reconstructing a lightweight linear component model; s4, constructing a comprehensive evaluation function Q, deleting the body-shaped components of which the Q values are smaller than a preset threshold value, and retaining the body-shaped components of which the Q values are greater than or equal to the preset threshold value; s5, obtaining optimized body-shaped component model data; and S6, according to the detail level division rule in the S2, assembling and recombining the lightweight linear component model in the S3 and the optimized body-shaped component model data in the S5, generating a hierarchical component structure, converting each component into a three-dimensional instance model, and outputting a three-dimensional tile data structure. And efficient organization and visualization of the contact network BIM model in the GIS environment are realized.

The present invention provides a rigid catenary disconnection device, belonging to the technical field of catenary. It solves the problem that the existing disconnection device cannot close large-width vertical rotating flood control doors. This rigid catenary includes a fixedly arranged first busbar, a second busbar, a third busbar and a fourth busbar. The third busbar and the fourth busbar are located between the first busbar and the second busbar. The disconnection device includes a mounting post, a cantilever capable of rotating around the mounting post, and a switching clamp arranged on the cantilever. When the switching clamp is closed, it can clamp the third busbar and the fourth busbar to connect the third busbar and the fourth busbar. When the switching clamp is opened, the third busbar can rotate around the first busbar under the action of its own gravity, and the fourth busbar can rotate around the second busbar under the action of its own gravity. This disconnection device has the advantage that after the rigid catenary is disconnected, enough distance can be vacated to enable the large flood control door to be closed.

The invention discloses an intelligent surveying and mapping system for catenary equipment in a tunnel, which relates to the technical field of catenary engineering detection and comprises a multi-source data acquisition module, a multi-source data fusion module, an identification and parameter calculation module, a modeling and interaction module and a data management and application output module. According to the invention, by deploying the multi-dimensional sensor, the limitation of traditional manual inspection or dependence of a single sensor is broken through aiming at the environments of insufficient illumination, high dust concentration and the like in the tunnel, the laser scanner can penetrate through the dust to obtain the three-dimensional geometric framework of the equipment, and the Beidou positioning assembly is bound with the collection action in real time; the problem of positioning deviation caused by weak GPS signals in the tunnel is solved, the environment sensor group monitors parameters such as temperature, humidity and illumination in real time, and through a dynamic adaptation fusion coefficient formula, sensor data weight is calculated, original coordinate deviation is corrected, a four-dimensional fusion data set is constructed, and errors caused by environment interference or data isolation in a traditional method are solved.

The invention relates to the technical field of pantograph-catenary system monitoring, and discloses a nonlinear pantograph-catenary system state prediction method based on a physical information neural network, and the method comprises the steps: obtaining the structural parameters of a catenary and a pantograph in a nonlinear pantograph-catenary system, and the train speed; a multi-expert Mama network based on Fourier transform is constructed; utilizing the first full connection layer to map input features formed by the structural parameters of the contact net and the pantograph and the train speed to a high-dimensional feature space to obtain first high-dimensional features; frequency domain features are extracted from the first high-dimensional features by using a plurality of cascaded multi-expert Mamba network layers, and time sequence features are modeled at the same time; fusing the spliced frequency domain feature and the time sequence feature by using a second full connection layer to obtain a second high-dimensional feature fusing the time-frequency energy and the dynamic evolution information; and performing nonlinear pantograph-catenary system state prediction according to the second high-dimensional features. According to the invention, the state prediction accuracy of the nonlinear pantograph-catenary system can be improved.

The invention relates to the technical field of overhead line system deicing, and discloses an intelligent deicing method and system for an overhead line system. The method comprises the following steps: firstly, acquiring ice layer monitoring data such as ice layer thickness distribution information, environment temperature information and wind speed information of a contact network area in real time; inputting the data into a simulation modeling tool, and constructing a three-dimensional ice layer distribution model of the overhead line system; judging whether deicing is needed or not according to matching of ice layer thickness distribution information in the model and a preset ice layer thickness threshold value mapping table; if yes, deicing equipment position parameters and deicing agent type parameters are extracted from a preset parameter database, and the deicing agent applying process is simulated in the three-dimensional model; and finally, outputting an ice layer fracture path, an ice melting range and deicing efficiency data, analyzing rationality, matching degree and effectiveness, and generating a parameter optimization instruction to adjust subsequent deicing parameters.

The invention discloses an intelligent detection method for a catenary concealment defect based on a multi-modal large model, and belongs to the technical field of intelligent inspection of a rail transit power supply system. According to the method, multi-source sensing data such as images, laser point clouds, infrared thermograms and structural sound waves are fused, and a unified multi-modal input data set is constructed. And the data quality and the fusion precision are improved through processing means such as space-time synchronization, registration and feature normalization. A multi-mode large model based on a Transform framework is adopted to carry out deep semantic modeling on fused data, feature information related to hidden defects is automatically extracted, and accurate recognition and positioning of early defects such as insulator fine cracks, early corrosion of hardware fittings, local corrosion of contact lines and micro displacement of a suspension system in an overhead line system are achieved. According to the method, the automatic and intelligent recognition capability of the catenary concealment defect can be remarkably improved, and the method is suitable for various scenes such as high-speed railways, urban rail transit and heavy haul railways.

The invention discloses a rigid contact network geometric parameter and abrasion measurement method based on point cloud data, and relates to the technical field of rail transit, and the method comprises the following steps: S1, collecting contact network point cloud image data in real time, and screening out a busbar-conductor point cloud profile area in the contact network point cloud image data; s2, extracting all busbar feature line segments in the busbar point cloud profile area; s3, performing rotation correction on the busbar-conductor point cloud profile area; and S4, clustering and fitting the corrected conductor point set in the conductor point cloud profile area by using a least square method to obtain a standard circle where the conductor is located and a conductor wear straight line, and measuring and outputting geometric parameters and wear of the overhead line system by using the standard circle and the wear straight line. According to the method, the noise interference is eliminated by adopting the minimum region method, the direction integral and the least square clustering, so that the precision of the measured abrasion and geometric parameters reaches the millimeter level, and the precision is high.

The invention provides a mountain slope transmission system catenary determining method and device, and the method comprises the steps: obtaining the arrangement parameters of a transmission system on a mountain slope, and the arrangement parameters at least comprise the horizontal distance between two fixed points of the transmission system, the vertical height difference, and the total length of a rope of the transmission system; based on the arrangement parameters, a simultaneous equation with the catenary opening coefficient as a core unknown quantity is established, and the simultaneous equation comprises the arc length constraint of the catenary and the height difference constraint of the two end points at the same time; solving the simultaneous equation to obtain a numerical solution of the catenary opening coefficient; and determining a catenary shape and a core engineering index of the transmission system on the mountain slope under the action of gravity according to the solved catenary opening coefficient. According to the method and the device, the engineering design precision is improved, and material redundancy and adjustment cost caused by shape uncertainty are saved.

The invention discloses a three-dimensional reconstruction method, device and equipment for a power transmission conductor, and a storage medium. The method comprises the following steps: acquiring original point cloud data of a conductor in a target area; performing coarse extraction on the original point cloud data to obtain coarse extraction point cloud data; performing classification extraction on the coarsely extracted point cloud data to obtain target point cloud data; conducting wire aerial form fitting on the target point cloud data based on a catenary equation to obtain a catenary aerial fitting result; according to the method, the lead in the target area is reconstructed according to the catenary air fitting result, the lead three-dimensional scene model is obtained, the real state and the space relation of the transmission lead can be reflected more accurately, and the reconstruction quality of the lead three-dimensional scene model is improved.

The invention provides a catenary height adjustment method and system, and relates to the technical field of catenary height adjustment, and the method comprises the steps: obtaining the on-site measurement data of the height of a conductor in the span of a catenary; establishing a statics model of the elastic chain type suspension based on a parabola unit hypothesis; calculating the dropper force of each dropper according to the measurement data and the stress balance principle of the parabola unit; the vertical displacement of each node of the carrier cable is solved through a moment balance equation, and then the space coordinates of the carrier cable are obtained; calculating the theoretical length of each dropper according to the coordinates of the carrier cable, the design height of the contact line and the dropper force; and comparing the theoretical length with the dropper length in a standard state to generate a dropper length adjustment strategy. The method provided by the invention not only can realize measurement bottleneck breakthrough, but also can be suitable for complex suspension conditions, and in addition, can also ensure the performability of an adjustment strategy, output a quantified dropper shortening amount and guide accurate construction.

The invention discloses a vortex-induced fatigue analysis method and device for a deep-sea steel catenary riser, electronic equipment and a storage medium, and belongs to the technical field of ocean facilities. The method comprises the following steps: acquiring motion data of an offshore platform; determining an equivalent oscillatory flow of the offshore platform based on the motion data; according to the equivalent oscillatory flow, vortex-induced vibration response of the deep-sea steel catenary riser is determined based on fluid-structure interaction effect analysis; according to the vortex-induced vibration response, the equivalent stress time history of the deep-sea steel catenary riser is obtained through calculation, and therefore a vortex-induced fatigue analysis result is determined. According to the invention, the platform motion can induce the riser to generate vortex-induced vibration, the equivalent mode is established to convert the platform motion into the oscillatory flow, and the fluid-solid coupling effect between the riser and the flow field is considered, so that the calculation is easy to realize and the precision is high; the perfection degree and reliability of the vortex-induced fatigue analysis result of the deep-sea steel catenary riser can be improved, and the fatigue damage degree of the deep-sea steel catenary riser can be accurately mastered.

The invention relates to the technical field of power transmission line construction, in particular to a continuous uphill and downhill construction sag determination method and system considering the influence of a strain string, and the method comprises the steps: obtaining basic parameters of a continuous uphill and downhill line; the method comprises the following steps: establishing a mechanical model containing a strain string, regarding the strain string as a catenary unit with distributed weight, forming a continuous span combined stress system with a lead, and constructing a mechanical equilibrium equation set of the system; based on the mechanical equilibrium equation set, adopting an iterative algorithm to solve the tension value of the continuous-gear wire gear by gear, taking the initial tension of the first gear as a starting point, and sequentially iterating to determine the final tension; calculating a construction sag value according to the final tension in combination with each span parameter and a tension string deflection angle; and outputting the sag value of each gear and the corresponding wire clamp installation position adjustment parameter. According to the method, the sag calculation precision of the continuous uphill and downhill terrains is improved, and the design and construction accuracy is guaranteed.

The invention discloses a submarine cable laying grounding tension control system and method, and belongs to the field of ocean submarine cable construction. The submarine cable laying grounding tension control system comprises a cable laying machine, a water entering bridge and a processor which are arranged on a cable laying ship, and a plurality of horizontal rollers arranged between the cable laying machine and the water entering bridge. The submarine cable forms a first catenary after being separated from the cable laying machine, and forms a second catenary after being separated from the water inlet bridge. A preset formula in the processor can calculate the difference value # imgabs0 # between the corrected submarine cable tension at the seabed grounding point and the minimum allowable submarine cable tension, and according to the difference value # imgabs0 #, the cable laying speed of the cable laying machine is adjusted, so that the # imgabs1 # tends to 0, and the # imgabs2 # is matched with TR, fine control over the submarine cable grounding tension is achieved, and the cable laying speed of the cable laying machine can be accurately controlled.

The present invention provides a hook attachment for hanging articles of any shape, size and weight, over a tightened horizontal wire, where the hook attachment resists forces in both horizontal directions and resists unwanted torque that may be imposed by the applied load of the article on the hook. The hook includes at least two parts: a wire coupling part and a load bearing part. The wire coupling part is a part of the hook where the hook flexibly couples with the tightened horizontal wire, and the load bearing part is the part where an article can be hanged in the hook.

The invention discloses a system for simulating the contact condition of a pantograph and a contact net after an earthquake. Relates to the field of railway bridge contact net anti-seismic tests. The system comprises a contact network simulation assembly, a train simulation assembly and a vibration table assembly. The contact network simulation assembly comprises a winch, a contact rope and two supporting columns. The two supporting columns are fixedly arranged at intervals, the winch is arranged at the top ends of the supporting columns and used for driving the contact rope to slide between the two supporting columns, the train simulation assembly comprises a train body, wheel parts arranged below the train body and a pantograph arranged on the train body, and the pantograph is in contact with the contact rope; the vibration table assembly comprises a table body and a vibrator used for vibrating the table body. The table body comprises a plurality of table tops which are independently arranged; the wheel part is placed on the table body; the vibration table assembly is adopted, each wheel below the train head is placed on the corresponding vibration table, and compared with the situation that a large vibration table top is placed below each wheel of a front bogie and a rear bogie, the real situation that the vibration states of all the wheels are different when a train runs on an unsmooth track after an earthquake is better met, the requirement for laboratory equipment conditions is lower, and the working efficiency is improved. Theoretically, test simulation is easier to realize, and the test result is more real, accurate and comprehensive.

A subsea catenary riser comprises a rigid riser pipe that is suspended from a floating support on the surface and extends through a sagbend to the seabed. A hang-off interface allows rotation or pivoting of the riser pipe relative to the support about mutually orthogonal horizontal axes. A subsea buoy is positioned on the riser pipe above the sagbend. The buoy applies buoyant upthrust force to the riser pipe via an attachment interface that allows rotation or pivoting of the riser pipe relative to the buoy about mutually orthogonal horizontal axes. In response to movement of the support, the riser pipe deflects with S-shaped curvature to vary the inclination, relative to the buoy, of the portion of the riser pipe to which the buoy is attached. The curvature comprises mutually opposed curves respectively above and below the buoy, joined by a region of inflection that coincides with the buoy.

The invention discloses a spring pantograph force adjusting system which comprises a bottom frame, a spring system, a force adjusting mechanism and an electric drive system. The bottom frame is of a frame welding structure, located at the bottom of the pantograph and used for supporting connecting components, the spring system is used for driving the lower arm to enable the pantograph to rise, and the force adjusting mechanism and the electric drive system are used for adjusting force. According to the spring pantograph force adjusting system, a force adjusting mechanism, an electric drive system and a spring drive system are integrally designed at the position of a pantograph underframe, the purpose that the spring force is adjustable in the pantograph running process is achieved, and the problems that the spring force of a high-speed spring pantograph cannot be adjusted, and the pantograph net following performance under high-speed running cannot be guaranteed are solved. And the high-speed operation current collection performance of the spring pantograph is ensured.

The invention discloses a modeling method, device and equipment for a sling lifting net blocking system and a storage medium. The method comprises the following steps: acquiring working state parameters of a bearing cable under the overhead line crossing construction working condition, and determining an initial bearing cable curve based on a catenary formula, boundary conditions of suspension points on two sides of the bearing cable and the working state parameters of the bearing cable; constructing a finite element analysis model based on the initial bearing cable curve, and determining stress distribution data and deformation data of the bearing cable based on the finite element model; and under the condition that the stress distribution data and the deformation data meet preset engineering requirements, determining the finite element analysis model as a target mechanical analysis model. The technical effects of accurately simulating the stress and deformation of the bearing cable and guaranteeing the construction safety are achieved.

The invention discloses a tension-leg-like mooring system suitable for a shallow-water-depth floating structure. The tension-leg-like mooring system comprises an anchor foundation, a mooring cable, a limiting spring and a suspension weight. The anchor foundation is fixed to the seabed and used for resisting horizontal and vertical mooring force. Three stand columns are arranged on the periphery of the floating body, balance weight cabins are arranged in the stand columns, overhanging weights are arranged in the balance weight cabins in the vertical direction in a sliding mode, limiting springs are installed at the top ends and the bottom ends in the balance weight cabins, one end of a mooring rope is connected with the anchor foundation, and the other end of the mooring rope is connected with the overhanging weights. The phenomenon that the mooring tension is sharply increased due to wave frequency motion of the floating body is avoided, and the problem that the catenary mooring platform with the low pretension design deviates too large is solved.

The invention discloses a linear variation stiffness matrix method for suspension bridge space cable forming form finding, relates to the technical field of bridge numerical simulation, and solves the defects of a stiffness matrix in the process of solving the suspension bridge forming form finding through a segmented catenary method. The method comprises the steps that a suspension bridge is simplified into a space cable system composed of a main span, a side span and an anchor span, and the main span, the side span and the anchor span are sequentially subjected to a bridge forming and shape finding process; the linear change stiffness matrix solved in the bridge forming and shape finding process of the main span is used for representing the linear relation between the displacement change of the control point and the initial force change of the main cable; according to the method, an analytical expression of a linear change stiffness matrix is deduced, and an efficient iterative algorithm is established. According to the algorithm, the initial force correction is directly calculated according to the displacement error of the control point in each iteration.

The utility model provides a polishing device for a contact line of a rigid contact net, which relates to the field of polishing of the contact line of the rigid contact net, and adopts the technical scheme that a polishing mechanism comprises a polishing motor and a polishing wheel, the polishing motor is arranged on a support plate I, and the support plate I is of an L-shaped structure; the first supporting plate is connected with a wing plate on the outer side of the moving seat through a first guide column, the first supporting plate and the first guide column can move relatively, a first follow-up spring is vertically arranged between the first supporting plate and the moving seat and arranged on the first guide column in a sleeving mode, and the upper end of the first guide column penetrates through the first supporting plate and is provided with a first limiting nut. A first straight hole groove is vertically formed in the corresponding position of the movable base, a motor shaft of the grinding motor extends into the first straight hole groove to be connected with a grinding wheel, and the axis of the grinding wheel is perpendicular to the advancing direction of the movable base. The polishing mechanism can float along with the change of the diameter of the contact line, and deformation caused by bearing of a large load is greatly avoided.

The invention provides a lead length measurement and fault determination method based on a Beidou GNSS positioning technology, and relates to the technical field of power transmission line monitoring, the method comprises three groups of GNSS modules, and the three groups of GNSS modules are used to respectively obtain coordinate points A, B and C of corresponding positions on a lead; fitting the track of the overhead transmission conductor between two adjacent iron towers by using a catenary curve equation; and the wire length L is solved through integration. According to the method, the track of the overhead transmission conductor between the two adjacent iron towers is fitted by adopting the catenary curve equation, and when the overhead transmission conductor is not coated with ice, the fitting degree with the catenary curve equation is relatively good, so that the solved conductor length L meets the preset requirement; however, as the middle section of the overhead transmission conductor is firstly iced and the weight is increased, the fitting degree of the actually formed shape and the track of the overhead transmission conductor is poor, so that the solved conductor length L deviates from an expected threshold value I, and the icing fault of the transmission line can be judged.

The invention relates to a bridge and culvert jacking contact network rod moving and changing method. The method comprises the steps that the height H of a bridge and culvert jacking structure and the span L1 of a bridge and culvert jacking structure are determined; the method comprises the following steps: acquiring a friction angle phi in a soil body in a jacking area of a jacking bridge and culvert, determining a fracture angle alpha of the jacking area to be 45 degrees + phi / 2 by adopting a Mohr-Coulomb intensity criterion, and calculating the length L2 of a fracture line in the railway direction to be H * tan alpha according to the fracture angle alpha; the method comprises the steps that a fracture line serves as an excavation stable face in the bridge and culvert jacking process, a span frame crossing the fracture line area is installed in the railway direction, the two ground fixing ends of the span frame are arranged at the positions L3 away from the fracture line end, L3 is the safe distance, and the span of the span frame is L1 + 2 * (L2 + L3); and the existing contact net is installed on the straddle frame according to the original position, composition structure and connection mode of the existing contact net. A permanent and temporary combination method is adopted, normal proceeding of bridge and culvert jacking construction is guaranteed, the contact net rod moving and changing steps are reduced, the railway key point time is shortened, and the influence on railway operation is reduced.

The invention discloses a method for calculating and visualizing the bearing capacity of a power transmission line under extreme meteorological conditions based on GIM and WebGIS. The method comprises the whole process from data analysis to real-time stress monitoring. A three-dimensional model of a power assembly is constructed by analyzing a GIM file of a power transmission line, and the three-dimensional model is exported into a standard format for verification. Meteorological data are collected and processed, meteorological parameter influence coefficients are configured, ultimate bearing capacity is calculated, and stress analysis and safety evaluation are carried out. The space coordinates of the sag conductor are calculated based on the three-dimensional model of the power transmission line, and a real-time conductor model is generated in combination with meteorological data and physical parameters of the catenary. And dynamically updating the state of the power transmission line through a three-dimensional visualization technology in combination with the tower model, the stress data, the lead model and the lead deformation degree, so as to find potential risks in time and take countermeasures. According to the scheme, accurate decision support can be provided for safety monitoring and maintenance of the power transmission line.

The invention discloses a cable-stayed bridge inhaul cable design method, device and equipment and a readable storage medium, and relates to the technical field of bridge design, and the method comprises the following steps: obtaining cable-stayed bridge inhaul cable calculation parameters, and constructing an endpoint tangent two-dimensional catenary equation; calculating the length of a catenary according to the cable-stayed bridge cable calculation parameters; calculating a projection vector of a catenary and an included angle between the catenary and an XYZ coordinate axis according to the cable-stayed bridge cable calculation parameters and an end point tangent two-dimensional catenary equation; inputting the projection vector of the catenary and the included angle between the catenary and the XYZ coordinate axis into the tower end conduit geometric model to obtain the length of the cable conduit and the coordinates of the two ends of the cable conduit; outputting the length of the catenary, the projection vector of the catenary, the included angle between the catenary and the XYZ coordinate axis, the length of the cable conduit and the coordinates of the two ends of the cable conduit, and completing the design of the cable-stayed bridge cable. In the cable-stayed bridge cable design, manual calculation is reduced, the design efficiency is improved, and complex manual iterative calculation and the situation that a formula needs to be redesigned due to the change of the shape of a bridge tower are avoided.