One-time in-place mounting method, device and equipment for elastic sling and storage medium
By establishing an installation tension calculation model, the working tension of the elastic sling is automatically adjusted to the installation tension, solving the problem of multiple adjustments during the installation of the elastic sling, and achieving efficient installation and reducing equipment wear.
Patent Information
- Application Number
- CN202511938739.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-06
AI Technical Summary
In existing technologies, the installation of elastic slings requires multiple adjustments, which increases redundant workload and equipment wear and tear, and makes it difficult to effectively control the installation tension within the specified range.
By establishing an installation tension calculation model, and calculating the deformation and tension changes of the elastic sling based on the contact network analysis model, the working tension is automatically adjusted to the installation tension, reducing the need for multiple installation and debugging operations.
This enables efficient installation of elastic slings, avoids equipment wear and redundant workload, and ensures that the installation tension is within the specified range.
Smart Images
Figure CN121608658A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of overhead contact line technology, and in particular to a method, apparatus, equipment, and storage medium for installing elastic suspension cables. Background Technology
[0002] In high-speed railway catenary systems, the precise installation and tension control of elastic suspenders are crucial for ensuring the dynamic performance of the catenary, the quality of current collection from the pantograph-catenary system, and the reliability of the system. The working tension of the elastic suspenders refers to the tension of the suspenders after the catenary construction is completed; it is a core parameter characterizing the working performance of the elastic suspenders. Maintaining the working tension of the elastic suspenders within the specified range plays an important role in reducing the elasticity non-uniformity coefficient of the catenary, increasing its stability, and improving the dynamic contact force between the pantograph and the catenary. To ensure project quality, according to relevant regulations, the construction error of the working tension of the elastic suspenders in catenary engineering must be controlled within 10%.
[0003] Because the tension of the elastic sling changes significantly before and after being subjected to the force of the dropper string, the common practice in current engineering installations is to first install the elastic sling at the specified tension (2kN or 2.5kN), and then, after the contact wire and dropper string are arranged, loosen one side of the elastic sling clamp, adjust the tension to the working tension (usually 3.5kN or 2.8kN), and reinstall the clamp. While this process meets the working tension requirements, it introduces redundant work due to the double installation of the elastic sling, and the repeated installation and adjustment can also cause some wear and tear on the equipment. Summary of the Invention
[0004] In view of this, this application provides a method, apparatus, equipment and storage medium for installing elastic slings, establishes a relevant installation tension calculation model, obtains the deformation of the elastic sling from the actual state of the current contact network, obtains the quantitative relationship between the installation tension and the working tension, converts the working tension of the elastic sling into the installation tension according to the quantitative relationship, and uses the installation tension to realize the installation of the elastic sling, avoiding the damage to the equipment caused by multiple installation and debugging, and reducing the workload.
[0005] The first aspect of this application provides a method for installing a flexible sling, the method comprising: Receive user input of target tension and information on the suspension wire to be loaded; The target tension of the elastic suspender during operation and the number of suspension wires are input into a pre-set catenary analysis model, and the first support force is calculated through the pre-set catenary analysis model; the first support force is the support force of the catenary base on the catenary after the suspension wires are installed; The target tension of the elastic suspender during operation and the number of suspension wires are input into a pre-set catenary analysis model, and the second support force is calculated through the pre-set catenary analysis model; the second support force is the support force of the catenary base on the catenary before the suspension wires are installed; Based on the total deformation formed during the process of the elastic sling suspension point from the first position to the second position, the change value of the first elastic sling tension caused by the direct action of the suspension wire force on the elastic sling is determined; the first position is the position of the end point of the elastic sling before the suspension wire is set, and the second position is the position of the end point of the elastic sling after the suspension wire is set; Based on the first support force and the second support force, determine the change in tension of the second elastic cable caused by the displacement of the elastic cable clamp position due to the dropper force; The installation tension is obtained by removing the first elastic sling tension change value from the target tension and adding the second elastic sling tension change value; During the installation of the elastic sling, the readings of the tension sensor are collected. When the reading of the tension sensor reaches the installation tension, a command is sent to the tensioning device to control the tensioning device to stop tensioning the elastic sling.
[0006] A second aspect of this application provides a flexible sling installation device, the device comprising: The receiving module is used to receive the target tension and the information of the dropper to be loaded, which are input by the user. The input module is used to input the target tension of the elastic suspender during operation and the number of droppers into a pre-set catenary analysis model, and calculate the first support force through the pre-set catenary analysis model; the first support force is the support force of the catenary base on the catenary after the droppers are installed; the input module is also used to input the target tension of the elastic suspender during operation and the number of droppers into the pre-set catenary analysis model, and calculate the second support force through the pre-set catenary analysis model; the second support force is the support force of the catenary base on the catenary before the droppers are installed. The calculation module is used to determine the first elastic sling tension change value caused by the direct action of the dropper force on the elastic sling, based on the total deformation formed during the process of the elastic sling suspension point moving from the first position to the second position; the first position is the position of the elastic sling end point before the dropper is set, and the second position is the position of the elastic sling end point after the dropper is set; and to determine the second elastic sling tension change value caused by the movement of the elastic sling clamp position due to the dropper force, based on the first support force and the second support force. The output module is used to remove the first elastic sling tension change value and add the second elastic sling tension change value to the target tension to obtain the installation tension; The installation instruction execution module is used to collect the reading values of the tension sensor during the installation of the elastic sling. When the reading value of the tension sensor reaches the installation tension, an instruction is sent to the tensioning device to control the tensioning device to stop tensioning the elastic sling.
[0007] A third aspect of this application provides an electronic device, comprising: a processor and a memory, the processor and the memory being connected via a communication bus; wherein the processor is configured to call and execute a program stored in the memory; and the memory is configured to store the program, the program being configured to implement the elastic sling installation method provided in the first aspect of this application.
[0008] A fourth aspect of this application provides a computer-readable storage medium storing computer-executable instructions for performing the elastic sling installation method provided in the first aspect of this application.
[0009] Compared with the prior art, this application provides a method, apparatus, equipment, and storage medium for installing elastic slings. Its advantages are as follows: The embodiments of this application establish a relevant installation tension calculation model to obtain the deformation of the elastic sling from the actual state of the current contact network, obtain a quantitative relationship between the installation tension and the working tension, determine the first elastic sling tension change caused by the direct action of the dropper force on the elastic sling, and the second elastic sling tension change caused by the movement of the elastic sling clamp position due to the dropper force. Thus, the aforementioned elastic sling tension change is determined. Then, based on this quantitative relationship, the working tension of the elastic sling is converted into the installation tension, and the installation of the elastic sling is achieved using the installation tension. This avoids repeated installation and debugging that could cause equipment damage and reduces workload. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0011] Figure 1 This is a flowchart of the steps of the elastic sling installation method proposed in the embodiments of this application; Figure 2 This is a schematic diagram of an example catenary analysis model established in this application; Figure 3 This is a schematic diagram of a deformation analysis model established as an example in this application; Figure 4 This is a schematic diagram of a model corresponding to an example of performing the calculation of the total deformation in this application; Figure 5 This is a schematic diagram illustrating the simulated deformation of a load-bearing cable under an example loading of a dropper in this application; Figure 6 This is a functional block diagram of the elastic sling installation device proposed in the embodiments of this application.
[0012] Figure 7 These are the simulation verification and field test verification results of the examples in this application. Detailed Implementation
[0013] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0014] In this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.
[0015] Example 1 As can be seen from the above background technology, since the tension of the elastic sling changes significantly before and after being subjected to the force of the suspension cable, in order to ensure that the tension construction error of the elastic sling is controlled within the specified range, it is necessary to adjust the elastic sling before and after installing the suspension cable, which increases the workload.
[0016] In view of this, this application provides a method for installing a flexible sling. Based on the quantitative relationship between the working tension of the flexible sling after the dropper is installed and the tension of the flexible sling when the dropper is not installed, and according to the dropper required by the current application environment of the contact network corresponding to the flexible sling, the deformation of the contact network before and after the dropper installation is obtained, and then the tension change of the flexible sling is determined. After automatically adjusting the working tension of the flexible sling according to the tension change, the installation tension is output to the program for installing the flexible sling, avoiding secondary adjustment of the flexible sling and reducing redundant workload.
[0017] Figure 1 This is a flowchart of the steps for installing the elastic sling according to an embodiment of this application, as shown below. Figure 1 As shown, the steps include: S11: Receives user input of target tension and information on the suspension wire to be loaded.
[0018] Target tension refers to the working tension of the elastic sling when all components of the contact wire, including the droppers, are installed.
[0019] The information to be loaded for the dropper includes the number of droppers and the installation location of the droppers to be installed.
[0020] S12: Input the target tension of the elastic suspender during operation and the number of suspension wires into the pre-set catenary analysis model, and calculate the first support force through the pre-set catenary analysis model; the first support force is the support force of the positioning point on the catenary after the suspension wires are installed; the positioning point is the installation position of the catenary base.
[0021] Figure 2 This is a schematic diagram of an example catenary analysis model established in this application, such as... Figure 2 As shown, this application provides an example of the process for setting up a catenary analysis model: Based on different track slope conditions and the premise that the catenary suspension points are not at equal heights, a simulation model is constructed for the left and right spans of the contact network of the elastic cable. The track position of the vertical projection of the left side clamp position of the catenary base is used as the origin of the coordinate system, and the horizontal and vertical gravity directions are used as the two axes to establish a rectangular coordinate system.
[0022] Indicates the vertical axis coordinates of the catenary base. This indicates the coordinates of the positioning point on the left side of the catenary base. The coordinates indicate the location point on the right side of the support cable base. The location point can be the position of the clamp of the elastic sling before the suspension cable is installed. It is the first The pulling force of the suspension string, Indicates the first A suspension string, It is the tension of the contact wire.
[0023] α is the track gradient, in mm / m. Figure 2 The medium-speed railway line includes three operating conditions: Operating Condition 1: The line radius R is infinite, i.e., a straight line; Operating Condition 2: R gradually decreases, indicating that the gradient of the line is decreasing; Operating Condition 3: R gradually increases, indicating an increase in the track gradient; The height y correction of the line under the three working conditions is obtained by formulas (4), (5), and (6), respectively. in, The height of the calculation point relative to the rail surface, in meters; To calculate the horizontal distance of a point to the origin of the coordinate system, in meters (m). The gradient is expressed in mm / m. The length of the vertical curve is in meters (m).
[0024] This application embodiment also provides specific implementation steps for calculating the first support force, step S12 including sub-steps: S121: Establish a deformation analysis model to simulate the deformation of a specific contact network under the force of the suspension cable; the specific contact network is the left and right spans of the contact network of the elastic suspension cable.
[0025] Figure 3 This is a schematic diagram of a deformation analysis model established as an example in this application, such as... Figure 3 As shown, points A, B, and C are fixed on the vertical axis. Point B is the position of the support cable base above the elastic suspender cable at the calculation point, and A and C are the positions of the adjacent support cable bases on both sides, respectively. The model has translational degrees of freedom on the x-axis, and the coordinate system of the deformation analysis model is the same as that of the contact wire analysis model.
[0026] S122: Calculate the pulling force of the contact wire on each dropper according to the force exerted by the contact wire on each dropper in the specific contact network.
[0027] Based on the deformation analysis model established above, the contact wire to the hanger in segment AB is obtained. force and the contact wire of section BC to the dropper force ; (7) = (8) in, It is the weight per unit length of the contact wire. It is the tension of the contact wire; Based on the above contact wire and dropper The force exerted by the contact wire is used to determine the pulling force of the contact wire on each dropper. ; (9) in, The weight of the suspension string.
[0028] S123: Sum the pulling forces of each dropper and add the forces exerted on the catenary by the catenary base and the elastic dropper clamp to obtain the first torque of the multiple vertical forces on the catenary relative to the elastic dropper clamp, and the second torque of the multiple vertical forces on the catenary relative to the catenary base.
[0029] The summation of the tensile forces on each dropper cable, combined with the forces exerted on the dropper cable by the base of the catenary and the elastic dropper cable clamp, yields the first torque M, which can be expressed as: (10) in, It is the distance between the i-th group of suspension wires and the starting side positioning point. It is the pulling force of the i-th group of suspension strings. The weight of the elastic sling clamp. The design length of the elastic sling. The weight of the elastic sling clamp. It is the weight per unit length of the load-bearing cable.
[0030] Summing the tensile forces of each dropper and adding the forces exerted on the dropper by the base of the catenary and the elastic dropper clamp, the second torque N can be expressed as: N = (11) in L For span.
[0031] S124: Calculate the first torque and the second torque to obtain the first supporting force. The calculation process is performed on the first torque M and the second torque N to obtain the first supporting force as follows: (12) (13) in, Represent Figure 3 The heights of points A, B, and C in the middle. , This represents the horizontal distance between point B and point A, and between point B and point C. For the tension of the load-bearing cable, Design tension for the elastic sling. , This represents the height of the support cable at the elastic sling clamp after the elastic sling is subjected to the sling force.
[0032] S13: Input the target tension of the elastic suspender when it is working and the number of suspension wires into the pre-set catenary analysis model, and calculate the second support force through the pre-set catenary analysis model; the second support force is the support force of the catenary base on the catenary before the suspension wires are installed.
[0033] This application provides an example of the process of running the corresponding calculation program to output the second supporting force: The pre-set catenary analysis model outputs the second support force through a calculation module based on formula (2). The second support force includes... and : (2) = (14) in, , These are the unit self-weights of the catenary and the elastic sling, respectively. The weight of the elastic sling clamp. , The spans on the left and right sides of the elastic sling point. Lt represents the tension of the load-bearing cable, and Lt represents the length of the elastic cable.
[0034] This indicates the second supporting force of the catenary base on the left catenary. This indicates the second supporting force of the catenary base on the right-side catenary. It is the weight per unit length of the elastic sling. The design length of the elastic sling. The weight of the elastic sling clamp. It is the coordinate of the support cable base on the horizontal axis. It is the coordinate of the support cable base on the vertical axis. It is the coordinate of the elastic suspender cable clamped on the vertical axis. It is the unit weight of the load-bearing cable. It is the tension of the load-bearing cable.
[0035] S14: Determine the first elastic sling tension change value caused by the direct action of the suspension wire force on the elastic sling based on the total deformation formed during the process of the elastic sling suspension point from the first position to the second position; the first position is the position of the end point of the elastic sling before the suspension wire is set, and the second position is the position of the end point of the elastic sling after the suspension wire is set.
[0036] This application embodiment also provides a process for determining the change in tension of the first elastic sling caused by the direct action of the suspension cable force on the elastic sling. Step S14 includes sub-steps: S141: Obtain the total deformation of the catenary, sling, and contact wire caused by the installation of the dropper.
[0037] Figure 4 This is a schematic diagram of a model corresponding to an example of performing the calculation of the total deformation in this application, such as... Figure 4 As shown, based on the stress and deformation of the elastic sling, the following is established: Figure 4 The execution determines the model corresponding to the calculation of the total deformation. The elastic sling is suspended at points A and D, and the string force F acts at points C and D respectively. After the string force is applied, the tension of the elastic sling is the working tension. Therefore, the tension is when there is no suspension. The tension in segment BC is F / tanθ. Based on the principle that the elongation of the rope is proportional to the increase in tension, the total deformation is calculated. ; (15) The distance between the suspension strings, It is the design length of the elastic sling.
[0038] S142: Determine the change in tension of the first elastic sling caused by the direct action of the sling force on the elastic sling through the calculation model established based on formula (1).
[0039] Based on the stress and deformation of elastic slings, as follows Figure 4 While determining the total deformation during the execution, according to, for example Figure 4 The execution determines the relationship between the force and deformation after the model is loaded with the suspension cable, and obtains the quantitative relationship between the change in tension of the first elastic cable and the distance between the elastic cable and the suspension cable.
[0040] (1) It is the target tension. The elastic modulus of the elastic sling. It is the equivalent cross-sectional area of the elastic sling. This represents the change in tension of the first elastic sling. It is the force exerted by the suspension wire on the elastic cable, collected by the sensor. This refers to the design length of the elastic sling.
[0041] In this embodiment of the application, after calculating the total deformation of the load-bearing cable, elastic cable and contact wire before and after the installation of the dropper, the total deformation is input into the calculation model established based on formula (1), and the calculation model outputs the first elastic cable tension change value caused by the dropper force acting directly on the elastic cable.
[0042] S15: Based on the first support force and the second support force, determine the change in tension of the second elastic sling caused by the movement of the elastic sling clamp position due to the suspension force.
[0043] This application embodiment also provides a process for determining the change in tension of the second elastic sling caused by the displacement of the elastic sling clamp position due to the sling force. Step S15 includes sub-steps: S151: Determine the length of the first support cable between the support cable base and the elastic suspension cable clamp before installing the suspension cable, based on the second support force.
[0044] This application provides an example of a specific implementation process for determining the length of the first catenary. Figure 5 This is a schematic diagram of simulated load-bearing cable deformation for an example of a loaded dropper in this application. Based on the simulation results, a calculation model for the length of the first load-bearing cable is established, as follows: Figure 5As shown, the first state is the state of the pre-loaded dropper cable, and the second state is the state of the post-loaded dropper cable. The length of the first dropper cable includes a first length and a second length. The first length is the length between the base of the pre-loaded dropper cable and the left elastic cable clamp, denoted as... The second length is the length between the base of the load-bearing cable and the left elastic cable clamp after the suspension cable is loaded. .
[0045] The calculation model for the length of the first supporting cable is obtained based on formula (16); (16) in, This indicates the second supporting force of the catenary base on the left catenary. This indicates the second supporting force of the catenary base on the right-side catenary. , yes. The calculation process is obtained from formula (17): (17) S152: Based on the dropper force collected by the first load sensor, the length of the second load-bearing cable between the cable base and the elastic cable clamp after the dropper is installed is obtained.
[0046] The length of the second load-bearing cable can be calculated based on the model constructed using formula (18); (18) in, It is the length between the base of the load-bearing cable and the left elastic cable clamp after the suspension cable is loaded. It is the length between the base of the load-bearing cable and the right-side elastic cable clamp after the suspension cable is loaded. It is the change in tension of the elastic sling before and after installation.
[0047] S153: Calculate and output the tension change value of the second elastic sling based on the length of the second load-bearing cable.
[0048] The calculation module based on formula (3) outputs the change value of the tension of the second elastic cable. : (3) This represents the change in tension of the second elastic sling. This indicates the length of the second support cable between the cable base and the elastic cable clamp after the dropper is installed. It is the length of the second catenary cable that lies to the left of the catenary cable. It is the length of the second catenary on the right side of the catenary.
[0049] Specifically, = , , yes inverse function, It is the supporting force of the load-bearing cable base on the left side of the first supporting force. It is the supporting force of the load-bearing cable base on the right side of the first supporting force.
[0050] S16: Based on the target tension, remove the first elastic sling tension change value and add the second elastic sling tension change value to obtain the installation tension.
[0051] The process of calculating installation tension can be expressed as: (19).
[0052] Indicates installation tension.
[0053] S17: During the installation of the elastic sling, the reading value of the tension sensor is collected. When the reading value of the tension sensor reaches the installation tension, a command is sent to the tensioning device to control the tensioning device to stop tensioning the elastic sling.
[0054] After the intelligent installation equipment converts the target tension into the installation tension, it executes step S17 to achieve the installation process of the elastic sling using the installation tension.
[0055] This application embodiment establishes a relevant installation tension calculation model to obtain the deformation of the elastic suspender from the actual state of the current contact network, obtains the quantitative relationship between the installation tension and the working tension, determines the first elastic suspender tension change value caused by the direct action of the dropper force on the elastic suspender, and the second elastic suspender tension change value caused by the movement of the elastic suspender clamp position due to the dropper force, thereby determining the above-mentioned elastic suspender tension change. Then, based on the above-mentioned quantitative relationship, the working tension of the elastic suspender is converted into the installation tension, and the installation of the elastic suspender is realized by the installation tension, avoiding the damage to the equipment caused by multiple installation and debugging, and reducing the workload.
[0056] Example 2 Based on the elastic sling installation method provided in Embodiment 1 of this application, correspondingly, Embodiment 2 of this application also provides an elastic sling installation device. Figure 6 This is a functional block diagram of the elastic sling installation device proposed in the embodiments of this application, such as... Figure 6 As shown, the device includes: Receiver module 61 is used to receive the target tension and the information of the suspension wire to be loaded input by the user; Input module 62 is used to input the target tension of the elastic suspender during operation and the number of droppers into a pre-set catenary analysis model, and calculate the first support force through the pre-set catenary analysis model; the first support force is the support force of the catenary base on the catenary after the droppers are installed; input the target tension of the elastic suspender during operation and the number of droppers into the pre-set catenary analysis model, and calculate the second support force through the pre-set catenary analysis model; the second support force is the support force of the catenary base on the catenary before the droppers are installed; Calculation module 63 is used to determine the first elastic sling tension change value caused by the direct action of the suspension wire force on the elastic sling based on the total deformation formed during the process of the elastic sling suspension point moving from the first position to the second position; the first position is the position of the elastic sling end point before the suspension wire is set, and the second position is the position of the elastic sling end point after the suspension wire is set; and to determine the second elastic sling tension change value caused by the movement of the elastic sling clamp position due to the suspension wire force based on the first support force and the second support force. Output module 64 is used to remove the first elastic sling tension change value and add the second elastic sling tension change value based on the target tension to obtain the installation tension; The installation instruction execution module 65 is used to collect the reading values of the tension sensor during the installation of the elastic sling. When the reading value of the tension sensor reaches the installation tension, it sends an instruction to the tensioning device to control the tensioning device to stop tensioning the elastic sling.
[0057] In one possible implementation, the device further includes: The module construction module is used to establish an analysis model of the contact network that simulates the deformation of a specific contact network under the force of the suspension cable; the specific contact network is the left and right spans of the contact network with elastic suspension cables; The pre-calculation module is used to calculate the tensile force of the contact wire on each dropper based on the force exerted by the contact wire on each dropper in the specific contact network. The input module is specifically used to sum the pulling force of each dropper and add the forces exerted on the catenary by the catenary base and the elastic dropper clamp, to obtain the first torque of multiple vertical forces on the catenary relative to the elastic dropper clamp, and the second torque of multiple vertical forces on the catenary relative to the catenary base. The first supporting force is obtained by calculating the first torque and the second torque.
[0058] In one possible implementation, the calculation module is specifically used to obtain the total deformation of the catenary, elastic sling, and contact wire caused by the installation of the dropper. The change in tension of the first elastic sling caused by the direct action of the sling force on the elastic sling is determined by the calculation model established based on formula (1); (1) It is the target tension. The elastic modulus of the elastic sling. It is the equivalent cross-sectional area of the elastic sling. This represents the change in tension of the first elastic sling. It is the force exerted by the suspension wire on the elastic cable, collected by the sensor. This refers to the design length of the elastic sling.
[0059] In one possible implementation, the calculation module is specifically used to determine, based on the first support force and the second support force, the change in the tension of the second elastic sling caused by the displacement of the elastic sling clamp position due to the suspension cable force, including: Based on the second support force, determine the length of the first support cable between the support cable base and the elastic support cable clamp before installing the dropper. Based on the dropper force collected by the first load sensor, the length of the second load cable between the cable base and the elastic cable clamp after the dropper is installed is obtained. The change in tension of the second elastic sling is calculated and output based on the length of the second support cable.
[0060] In one possible implementation, the input module is specifically used to output the second support force through a calculation module based on formula (2) from a pre-set catenary analysis model: (2) Indicates the second supporting force. It is the weight per unit length of the elastic sling. The design length of the elastic sling. The weight of the elastic sling clamp. It is the coordinate of the support cable base on the horizontal axis. It is the coordinate of the support cable base on the vertical axis. It is the coordinate of the elastic suspender cable clamped on the vertical axis. It is XXX. It is XX.
[0061] In one possible implementation, the calculation module is specifically used to output the change value of the second elastic cable tension through a calculation module established based on formula (3): (3) This represents the change in tension of the second elastic sling. This indicates the length of the second support cable between the cable base and the elastic cable clamp after the dropper is installed. It is the length of the second catenary cable that lies to the left of the catenary cable. It is the length of the second catenary on the right side of the catenary.
[0062] Ultimately, the installation tension of the elastic sling... It can be obtained from the following formula: (19) The verification results are shown below. Figure 7 The chart statistically analyzes the finite element verification of the solution method for the elastic sling tension, as well as the measured error of the working tension of the elastic sling after installation using this tension.
[0063] The specific principles and execution processes of each unit or module in the elastic sling installation device disclosed in Embodiment 2 of this application are the same as those of the elastic sling installation method disclosed in Embodiment 1 of this application. Please refer to the corresponding parts of the elastic sling installation method disclosed in Embodiment 1 of this application, and they will not be repeated here.
[0064] Example 3 Embodiment 3 of this application provides an electronic device, including: a processor and a memory, the processor and the memory being connected via a communication bus; wherein, the processor is used to call and execute a program stored in the memory; the memory is used to store the program, the program being used to implement the elastic sling installation method provided in Embodiment 1 of this application.
[0065] Example 4 Embodiment 4 of this application provides a computer-readable storage medium storing computer-executable instructions for performing the elastic sling installation method provided in Embodiment 1 of this application.
[0066] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computing software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0067] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.
[0068] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A method of installing an elastomeric sling in a single trip, the method comprising: The method is applied to intelligent installation equipment and comprises the following steps: receiving a target tension input by a user and information about a to-be-loaded dropper; inputting the target tension of the elastic sling in operation and the number of the droppers into a pre-set catenary analysis model to calculate a first supporting force by the pre-set catenary analysis model, wherein the first supporting force is a supporting force of a support cable base on the support cable after installation of the dropper; inputting the target tension of the elastic sling in operation and the number of the droppers into the pre-set catenary analysis model to calculate a second supporting force by the pre-set catenary analysis model, wherein the second supporting force is a supporting force of the support cable base on the support cable before installation of the dropper; determining a first elastic sling tension change value caused by a direct action of the dropper force on the elastic sling according to a total deformation of the elastic sling suspension point from a first position to a second position, wherein the first position is a position of an end point of the elastic sling before installation of the dropper, and the second position is a position of the end point of the elastic sling after installation of the dropper; determining a second elastic sling tension change value caused by a position movement of the elastic sling clamp caused by the dropper force according to the first supporting force and the second supporting force; obtaining an installation tension by removing the first elastic sling tension change value and adding the second elastic sling tension change value on the basis of the target tension; collecting a tension sensor reading value during installation of the elastic sling, and sending a command to a tensioning device to control the tensioning device to stop tensioning the elastic sling when the tension sensor reading value reaches the installation tension.
2. The method of claim 1, wherein, The method further comprises the following steps: establishing a catenary analysis model simulating deformation of a specific catenary caused by a dropper force, wherein the specific catenary is a left and right span catenary of the elastic sling; calculating a pulling force of a contact wire on each dropper according to the force of the contact wire on each dropper in the specific catenary; inputting the target tension of the elastic sling in operation and the number of the droppers into the pre-set catenary analysis model to calculate the first supporting force by the pre-set catenary analysis model, comprising the following steps: summing up the pulling force of each dropper and superimposing the force of the support cable base and the elastic sling clamp on the support cable to obtain a first moment of a plurality of vertical forces on the support cable relative to the elastic sling clamp and a second moment of the plurality of vertical forces on the support cable relative to the support cable base; calculating the first moment and the second moment to obtain the first supporting force.
3. The method of claim 1, wherein, determining the first elastic sling tension change value caused by the direct action of the dropper force on the elastic sling according to a total deformation of the elastic sling suspension point from a first position to a second position, comprising the following steps: obtaining a total deformation of the support cable, the elastic sling and the contact wire caused by installation of the dropper; determining the first elastic sling tension change value caused by the direct action of the dropper force on the elastic sling by a calculation model established based on formula (1); （1） is the target tension, is the elastic modulus of the elastic sling, is the equivalent cross-sectional area of the elastic sling, denotes the first elastic sling tension change value, is the force of the lacing cord on the elastic sling as collected by the sensor, is the design length of the elastic sling.
4. The method of claim 1, wherein, determining the second elastic sling tension change value caused by the position movement of the elastic sling clamp caused by the dropper force according to the first supporting force and the second supporting force, comprising the following steps: determining a first support cable length between the support cable base and the elastic sling clamp before installation of the dropper according to the second supporting force; Based on the first length of the bearing cable, a second length of the bearing cable between the cable bottom and the elastic cable clamp is obtained after the installation of the dropper; According to the second length of the bearing cable, the second elastic cable tension change value is calculated and output.
5. The method of claim 1, wherein, The target tension of the elastic cable in operation and the number of droppers are input into the pre-set catenary analysis model, and the second support force is calculated by the pre-set catenary analysis model, including: The pre-set catenary analysis model outputs the second support force through a calculation module established based on formula (2): （2） represents the second support force, is the unit length weight of the elastic sling, is the design length of the elastic sling, is the weight of the elastic sling clamp, is the coordinate of the load-bearing cable base on the horizontal axis, is the coordinate of the load-bearing cable base on the vertical axis, is the coordinate of the elastic sling clamp on the vertical axis, is the unit self-weight of the load-bearing cable, is the tension of the load-bearing cable.
6. The method of claim 4, wherein, According to the second length of the bearing cable, the second elastic cable tension change value is calculated and output, including: The second elastic cable tension change value is output through a calculation module established based on formula (3): （3） represents a second elastic sling tension change value, represents a second load cable length between the installed chaser cable bottom base and the elastic sling wire clamp, is a partial length of the second load cable length on the left side of the load cable, is a partial length of the second load cable length on the right side of the load cable.
7. An elastic sling mounting device, characterized by The device comprises: A receiving module is configured to receive a target tension input by a user and dropper information to be loaded; An input module is configured to input the target tension of the elastic cable in operation and the number of droppers into a pre-set catenary analysis model, and calculate a first support force by the pre-set catenary analysis model; the first support force is a support force of the bearing cable bottom on the bearing cable after the installation of the dropper; the target tension of the elastic cable in operation and the number of droppers are input into the pre-set catenary analysis model, and a second support force is calculated by the pre-set catenary analysis model; the second support force is a support force of the bearing cable bottom on the bearing cable before the installation of the dropper; A calculation module is configured to determine a first elastic cable tension change value caused by the direct action of the dropper force on the elastic cable according to a total deformation formed in the process of the elastic cable suspension point from a first position to a second position; the first position is a position of an end point of the elastic cable before the installation of the dropper, and the second position is a position of the end point of the elastic cable after the installation of the dropper; a second elastic cable tension change value caused by the position movement of the elastic cable clamp caused by the dropper force is determined according to the first support force and the second support force; An output module is configured to remove the first elastic cable tension change value and add the second elastic cable tension change value on the basis of the target tension, so as to obtain an installation tension; An installation instruction execution module is configured to collect a tension sensor reading value in the process of installing the elastic cable, and send an instruction to a tensioning device to stop tensioning the elastic cable when the tension sensor reading value reaches the installation tension.
8. The apparatus of claim 7, wherein, The device further comprises: A module construction module is configured to construct a catenary analysis model simulating the deformation of a specific catenary under the action of a dropper force; the specific catenary is a left and right span catenary of the elastic cable; A pre-calculation module is configured to calculate a pulling force of a contact line on each dropper according to the force of the contact line on each dropper in the specific catenary; The input module is specifically configured to sum the pulling force of each dropper, and superimpose the force of the bearing cable bottom and the elastic cable clamp on the bearing cable, so as to obtain a first moment of a plurality of vertical forces on the bearing cable relative to the elastic cable clamp, and a second moment of the plurality of vertical forces on the bearing cable relative to the bearing cable bottom; The first moment and the second moment are calculated to obtain the first support force.
9. An electronic device, comprising: including: A processor and a memory connected by a communication bus, wherein the processor is configured to invoke and execute a program stored in the memory; The memory is configured to store a program, and the program is configured to implement the elastic sling mounting method according to any one of claims 1-6.
10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions, and the computer executable instructions are configured to execute the elastic sling mounting method according to any one of claims 1-6.