Long-life prediction simulation platform for mechanical components of space station docking mechanisms

Abstract

The present invention relates to a long-life prediction simulation platform for mechanical components of a space station docking mechanism, which includes a finite element simulation model, a combination dynamic load simulation analysis area, a result display area, a docking lock force attenuation simulation analysis area, a menu bar area, and a status bar area. The finite element simulation model includes a combination dynamic load finite element simulation model and a docking lock force attenuation finite element simulation model. The combination dynamic load simulation analysis area includes a material parameter area, a loading force area, and a loading torque area. The docking lock force attenuation simulation analysis area includes a simulation parameter calculation area and a lock system tension prediction area. The menu bar area includes a combination dynamic load simulation analysis menu and a docking lock force attenuation simulation analysis menu. The present invention can easily modify finite element model parameters, predict the life of the docking lock through simulation cloud maps and curve results, avoid frequent periodic inspections and maintenance, and has important practical significance.

Description

Technical Field

[0001] The present invention belongs to the technical field of computer graphics, and specifically relates to a long-life prediction simulation platform for mechanical components of a space station docking mechanism, which can modify finite element model parameters and display cloud maps and curve results. Background Art

[0002] At present, with the rapid development of my country's aerospace technology, the structure of spacecraft is becoming increasingly complex, and the performance and technical level are constantly improving. In this context, to ensure the more durable and stable operation of spacecraft in the complex space environment, it is particularly important to establish a digital twin of the mechanical assembly of the space station docking mechanism and the docking lock life study connection and separation performance, and to complete the performance simulation of the connection and separation process of adjacent spacecraft at any time point during the life cycle (service).

[0003] Establish a study on the lifespan of the mechanical components of the docking mechanism and the docking lock of the space station, connect and separate performance digital twins, facilitate modification of finite element model parameters, display of simulation cloud graph curve results, and docking lock life prediction. Dynamically update the model based on data to improve the diagnosis, evaluation, and prediction capabilities of the actual physical system. At the same time, optimize the operation, operation, and maintenance of the actual physical system online to avoid frequent periodic inspections and maintenance, and ensure the safety and reliability of the physical entity. Therefore, it is extremely urgent and important to establish a long-life prediction simulation platform for the mechanical components of the docking mechanism of the space station, which can modify finite element model parameters and display cloud graphs and curve results to effectively improve the work efficiency and operation and maintenance capabilities of the actual physical system. Summary of the Invention

[0004] In response to the above situation, the present invention provides a long-life prediction simulation platform for mechanical components of a space station docking mechanism, which includes a finite element simulation model, a dynamic load simulation analysis area for an assembly, a result display area, a docking lock force attenuation simulation analysis area, a menu bar area, and a status bar area. The finite element simulation model includes a finite element simulation model for the dynamic load of an assembly and a finite element simulation model for the docking lock force attenuation. The dynamic load simulation analysis area for an assembly includes a material parameter area, a loading force area, and a loading torque area. The docking lock force attenuation simulation analysis area includes a simulation parameter calculation area and a lock system tension prediction area. The menu bar area includes a dynamic load simulation analysis menu for an assembly and a docking lock force attenuation simulation analysis menu. The present invention can easily modify the finite element model parameters, predict the life of the docking lock through simulation cloud maps and curve results, and avoid frequent periodic inspections and maintenance, which has important practical significance.

[0005] The technical solution adopted by the present invention is a long-life prediction simulation platform for mechanical components of a space station docking mechanism, which includes a finite element simulation model, an assembly dynamic load simulation analysis area, a result display area, a docking lock force attenuation simulation analysis area, a menu bar area, and a status bar area. The finite element simulation model includes a finite element simulation model of the assembly dynamic load and a finite element simulation model of the docking lock force attenuation.

[0006] The dynamic load simulation analysis area of ​​the assembly includes a material parameter area, a loading force area, and a loading moment area. The material parameter area is used to display material parameters including the density, Young's modulus, and Poisson's ratio of the docking frame simulation model; the loading force area is used to display the loading force parameters F in three mutually perpendicular spatial directions applied by the dynamic load simulation of the assembly. x 、F y 、F z The loading moment area is used to display the loading moment parameters M in three mutually perpendicular spatial directions applied by dynamic load simulation x 、M y 、M z ; Input corresponding parameters in the material parameter area, loading force area, and loading moment area as input conditions for the dynamic load simulation analysis of the assembly;

[0007] The docking lock force decay simulation analysis area includes a simulation parameter calculation area and a lock tension prediction area. The simulation parameter calculation area calculates the simulation parameters required for the docking lock force decay simulation analysis based on the input service time, and updates the simulation parameters to the docking lock force decay simulation model through the Update Simulation Parameters menu under the docking lock force decay simulation analysis menu. The lock tension prediction area displays the remaining locking force of the docking lock, the docking lock locking force decay percentage, and whether the service requirements are met.

[0008] The menu bar area includes a combination dynamic load simulation analysis menu and a docking lock force attenuation simulation analysis menu.

[0009] Furthermore, the combination dynamic load simulation analysis menu includes a first submenu including reading constant load parameters, reading sinusoidal load parameters, updating constant load parameters, updating sinusoidal load parameters, starting constant load calculation, starting sinusoidal load calculation, cloud map display-stress cloud map, cloud map display-strain cloud map, cloud map display-acceleration cloud map, stress curve-S16MAX, stress curve-SANY, strain curve-E16MAX, strain curve-EANY, acceleration curve-A8MAX, acceleration curve-AANY, analysis report-stress analysis report, analysis report-strain analysis report and analysis report-acceleration analysis report; the docking lock force attenuation simulation analysis menu includes a second submenu including calculating simulation parameters, updating simulation parameters, submitting calculation, shell stress cloud map, lock hook stress cloud map, docking lock tension cloud map and lock system tension prediction.

[0010] Preferably, the reading of constant load parameters and the reading of sine load parameters in the first submenu respectively read the material parameters, loading force parameters and loading moment parameters set in the combination dynamic load simulation analysis area, and display them in the text box of the combination dynamic load simulation analysis area; the updating of constant load parameters and the updating of sine load parameters respectively obtain the material parameters, loading force parameters and loading moment parameters in the text box of the combination dynamic load simulation analysis area, and update the parameters to the combination dynamic load simulation model; the starting of constant load calculation and the starting of sine load calculation create a combination dynamic load simulation analysis job, and submit the job for simulation calculation. Calculate and obtain the simulation calculation results; the cloud map display - stress cloud map, cloud map display - strain cloud map and cloud map display - acceleration cloud map display stress cloud map, strain cloud map and acceleration cloud map in the result display area, and realize the cloud map zooming in, zooming out, rotating and other viewing operations in the result display area; the stress curve - S16MAX selects the 16 strain gauges of the assembly and the position with the maximum stress, draws the stress curve and displays it in a separate window; the stress curve - SANY draws the stress curve of any point on the assembly according to the input coordinates and displays it in a separate window; the strain curve - E16MAX Select the 16 strain gauges of the assembly and the position with the maximum strain, draw the strain curve and display it in a separate window; the strain curve - EANY draws the strain curve of any point on the assembly according to the input coordinates of the point and displays it in a separate window; the acceleration curve - A8MAX selects the 8 strain gauges of the assembly and the position with the maximum acceleration, draws the acceleration curve and displays it in a separate window; the acceleration curve - AANY draws the acceleration curve of any point on the assembly according to the input coordinates of the point and displays it in a separate window; the analysis report - stress analysis report generates a simplified stress analysis report, The analysis report includes the loading force and loading moment parameters of the dynamic load simulation analysis, 16 strain gauge numbers, coordinate positions, maximum stress position, and maximum stress value; the analysis report - strain analysis report generates a simplified strain analysis report, which includes the loading force and loading moment parameters of the dynamic load simulation analysis, 16 strain gauge numbers, coordinate positions, maximum strain position, and maximum strain value; the analysis report - acceleration analysis report generates a simplified acceleration analysis report, which includes the loading force and loading moment parameters of the dynamic load simulation analysis, 8 acceleration numbers, coordinate positions, maximum acceleration position, and maximum acceleration value;

[0011] The calculation simulation parameters in the second submenu calculate the simulation parameters required for the docking lock force attenuation simulation analysis according to the service time input in the simulation parameter calculation area, and display them in the corresponding text box in the simulation parameter calculation area; the update simulation parameters updates the simulation parameter calculation results to the docking lock force attenuation simulation model; the shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map respectively display the shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map in the result display area, and realize the view operations such as zooming in, zooming out and rotating the cloud map in the result display area; the lock system tension prediction calculates the remaining locking force of the docking lock, the docking lock locking force attenuation percentage and whether the service requirements are met according to the initial load of the docking lock and the docking lock force attenuation simulation analysis results, and displays them in the lock system tension prediction area.

[0012] Preferably, the simulation parameters include disc spring stiffness, TB2 equivalent modulus, TC4R equivalent modulus and 7A04 equivalent modulus.

[0013] Preferably, the result display area is used to display the results of dynamic load simulation analysis and docking lock force attenuation simulation analysis, and the results include combination stress-strain cloud map, acceleration cloud map, shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map.

[0014] Preferably, the status bar area is located at the bottom and displays prompt information including calculation status and calculation time.

[0015] The characteristics and beneficial effects of the present invention are:

[0016] 1. The long-life prediction simulation platform for mechanical components of the space station docking mechanism provided by the present invention can easily modify the finite element model parameters and predict the life of the docking lock through simulation cloud maps and curve results, avoiding frequent periodic inspections and maintenance.

[0017] 2. The long-life prediction simulation platform for mechanical components of the space station docking mechanism provided by the present invention, and the development means, control methods, calculation algorithms, etc. involved in the platform, provide an important empirical basis for the construction of other simulation platforms and have important practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a diagram showing the composition of the long-life prediction simulation platform for mechanical components of the space station docking mechanism of the present invention;

[0019] Figure 2 The finite element simulation model of the combined body dynamic load in the embodiment of the present invention;

[0020] Figure 3 This is a finite element simulation model of the docking lock force attenuation in an embodiment of the present invention;

[0021] Figure 4 The menu structure for the dynamic load simulation analysis of the assembly of the present invention;

[0022] Figure 5 The menu structure for the simulation analysis of the docking lock force attenuation of the present invention;

[0023] Figure 6 This is a constant load parameter test interface in an embodiment of the present invention;

[0024] Figure 7 This is an interface for updating constant load parameter test in an embodiment of the present invention;

[0025] Figure 8 This is a parameter input error prompt interface in an embodiment of the present invention;

[0026] Figure 9 A stress cloud diagram is shown in an embodiment of the present invention;

[0027] Figure 10 The strain cloud diagram in the embodiment of the present invention is displayed;

[0028] Figure 11 The acceleration cloud diagram in the embodiment of the present invention is displayed;

[0029] Figure 12 Selection of a location for drawing a stress curve in an embodiment of the present invention;

[0030] Figure 13 An arbitrary position coordinate input interface in an embodiment of the present invention;

[0031] Figure 14 The stress curve at any position in the embodiment of the present invention is drawn;

[0032] Figure 15 The stress analysis report content in the embodiment of the present invention;

[0033] Figure 16 The content of the strain analysis report in the embodiment of the present invention;

[0034] Figure 17 This is the content of the acceleration analysis report in the embodiment of the present invention. DETAILED DESCRIPTION

[0035] To fully describe the technical content, structural features, objectives and effects of the present invention, the following is a detailed description with reference to the accompanying drawings.

[0036] The present invention provides a space station docking mechanism mechanical component long life prediction simulation platform, such as Figure 1As shown, it includes a finite element simulation model, a combination dynamic load simulation analysis area, a result display area, a docking lock force attenuation simulation analysis area, a menu bar area, and a status bar area. The finite element simulation model includes a combination dynamic load finite element simulation model and a docking lock force attenuation finite element simulation model. In a specific embodiment, Figure 2 and Figure 3 shown.

[0037] The dynamic load simulation analysis area of ​​the assembly includes the material parameter area, the loading force area, and the loading moment area. The material parameter area is used to display the material parameters including the density, Young's modulus, and Poisson's ratio of the docking frame simulation model; the loading force area is used to display the loading force parameters F in three mutually perpendicular spatial directions applied by the dynamic load simulation of the assembly. x 、F y 、F z The loading moment area is used to display the loading moment parameters M in three mutually perpendicular spatial directions applied by dynamic load simulation. x 、M y 、M z ; Enter the corresponding parameters in the material parameter area, loading force area, and loading moment area as input conditions for the dynamic load simulation analysis of the assembly.

[0038] The docking lock force decay simulation analysis area includes the simulation parameter calculation area and the lock tension prediction area. The simulation parameter calculation area calculates the simulation parameters required for docking lock force decay simulation analysis based on the service time input. These parameters are updated to the docking lock force decay simulation model using the Update Simulation Parameters menu under the docking lock force decay simulation analysis menu. The lock tension prediction area displays the docking lock's remaining locking force, the docking lock's lock force decay percentage, and whether the service requirements are met. Simulation parameters include disc spring stiffness, TB2 equivalent modulus, TC4R equivalent modulus, and 7A04 equivalent modulus.

[0039] The menu bar area includes the assembly dynamic load simulation analysis menu and the docking lock force attenuation simulation analysis menu.

[0040] like Figure 4 As shown in the figure, the combined body dynamic load simulation analysis menu includes the first submenu including read constant load parameters, read sine load parameters, update constant load parameters, update sine load parameters, start constant load calculation, start sine load calculation, cloud map display-stress cloud map, cloud map display-strain cloud map, cloud map display-acceleration cloud map, stress curve-S16MAX, stress curve-SANY, strain curve-E16MAX, strain curve-EANY, acceleration curve-A8MAX, acceleration curve-AANY, analysis report-stress analysis report, analysis report-strain analysis report and analysis report-acceleration analysis report; as ... Figure 5As shown, the docking lock force attenuation simulation analysis menu includes a second submenu including calculation simulation parameters, update simulation parameters, submit calculation, shell stress cloud map, lock hook stress cloud map, docking lock tension cloud map and lock system tension prediction.

[0041] Read constant load parameters and Read sine load parameters in the first submenu read the material parameters, loading force parameters, loading moment parameters set in the combined body dynamic load simulation analysis area respectively, and display them in the text box of the combined body dynamic load simulation analysis area; Update constant load parameters and Update sine load parameters respectively obtain the material parameters, loading force parameters, loading moment parameters in the text box of the combined body dynamic load simulation analysis area, and update the parameters to the combined body dynamic load simulation model; Start constant load calculation and Start sine load calculation to create a combined body dynamic load simulation analysis job, submit the job for simulation calculation, and get To the simulation calculation results; Cloud display - stress cloud map, cloud display - strain cloud map and cloud display - acceleration cloud map will display the stress cloud map, strain cloud map and acceleration cloud map in the result display area, and realize the cloud map zoom in, zoom out, rotate and other view operations in the result display area; Stress curve - S16MAX selects 16 strain gauges of the combination and the position with the maximum stress, draws the stress curve and displays it in a separate window; Stress curve - SANY draws the stress curve of any point on the combination according to the input coordinates and displays it in a separate window; Strain curve - E16MAX selects combination 1 The EANY function plots the strain curve for any point on the assembly based on the input coordinates and displays it in a separate window. The A8MAX function plots the acceleration curve for any point on the assembly based on the input coordinates and displays it in a separate window. The AANY function plots the acceleration curve for any point on the assembly based on the input coordinates and displays it in a separate window. The ANALYSIS REPORT - STRESS ANALYSIS REPORT generates a simplified stress analysis report, which includes the loading force and loading torque parameters for the dynamic load simulation analysis, the 16 strain gauge numbers and coordinate locations, the maximum stress location, and the maximum stress value. The ANALYSIS REPORT - STRAIN ANALYSIS REPORT generates a simplified strain analysis report, which includes the loading force and loading torque parameters for the dynamic load simulation analysis, the 16 strain gauge numbers and coordinate locations, the maximum strain location, and the maximum strain value. The ANALYSIS REPORT - ACCELERATION ANALYSIS REPORT generates a simplified acceleration analysis report, which includes the loading force and loading torque parameters for the dynamic load simulation analysis, the 8 acceleration numbers and coordinate locations, the maximum acceleration location, and the maximum acceleration value.

[0042] The calculation simulation parameters in the second submenu calculate the simulation parameters required for the docking lock force attenuation simulation analysis based on the service time (years) entered in the simulation parameter calculation area, and display them in the corresponding text box in the simulation parameter calculation area; update the simulation parameters to update the simulation parameter calculation results to the docking lock force attenuation simulation model; the shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map respectively display the shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map in the result display area, and realize the view operations such as zooming in, zooming out and rotating the cloud map in the result display area; the lock system tension prediction calculates the remaining locking force of the docking lock, the docking lock locking force attenuation percentage and whether the service requirements are met in the lock system tension prediction area based on the initial load of the docking lock and the docking lock force attenuation simulation analysis results.

[0043] The result display area is used to display the results of dynamic load simulation analysis and docking lock force attenuation simulation analysis. The results include stress and strain cloud diagrams of the assembly, acceleration cloud diagrams, shell stress cloud diagrams, lock hook stress cloud diagrams, and docking lock tension cloud diagrams.

[0044] The status bar area is located at the bottom and displays prompt information including calculation status and calculation time.

[0045] In a specific embodiment, the specific operation process of the space station docking mechanism mechanical component long life prediction simulation platform is as follows:

[0046] Click Read Constant Load Parameters and Read Sine Load Parameters in the first submenu, and the platform will automatically read the material parameters, loading force parameters, and loading moment parameters in the combined dynamic load (constant, sinusoidal) simulation model and display them in the corresponding area. After reading, a dialog box will pop up. Figure 6 shown.

[0047] Note: When reading constant and sinusoidal load parameters, the combined dynamic load (constant, sinusoidal) simulation model cannot be opened. Before reading, you can open the combined dynamic load (constant, sinusoidal) simulation model to record the relevant parameters to verify whether the platform reads the parameters correctly.

[0048] Enter the corresponding parameters in the input boxes of the material parameters, loading force, and loading torque areas of the combined body dynamic load simulation analysis area, click Update constant load parameters and Update sine load parameters in the first submenu, the platform will automatically obtain the corresponding parameters and update them to the combined body dynamic load (constant, sine load) simulation model. After the update is completed, a dialog box will pop up to prompt you. The update constant load parameter test interface is as follows: Figure 7 When the input parameter is not a number or is incomplete, a dialog box will pop up, such as Figure 8 shown.

[0049] Note: When updating the constant and sinusoidal load parameters, the combined dynamic load (constant, sinusoidal) simulation model cannot be opened. After the update, you can open the combined dynamic load (constant, sinusoidal) simulation model to view the relevant parameters to verify whether the platform update parameters are correct.

[0050] Click Start Constant Load Calculation or Start Sine Load Calculation in the first submenu. The platform will automatically call ABAQUS to complete the calculation of the combined dynamic load (constant and sinusoidal load) simulation model. The calculation time will be displayed in the status bar area, and a dialog box will pop up after the calculation is completed. The combined dynamic load simulation model calculation time is relatively long. Take ".\mysample.cae" as an example. Before the calculation, there is no result file in the "test" folder, and the result calculation time in the status bar area is 1 second. After the calculation is completed, the result file appears in the "test" folder, and the result calculation time in the status bar area changes to 2 seconds. A dialog box will pop up after the calculation is completed.

[0051] Note: Before starting the constant and sinusoidal load calculation, the combined dynamic load (constant and sinusoidal) simulation model cannot be opened.

[0052] Click on the first submenu - Stress Cloud Map, the platform will automatically obtain the data in the result file, open a new window, and display the stress cloud map, such as Figure 9 In this window, you can zoom in, zoom out, pan, and perform other operations on the cloud image.

[0053] Click on the first submenu - Strain Cloud Display submenu, the platform will automatically obtain the data in the result file, open a new window, and display the strain cloud map, such as Figure 10 In this window, you can zoom in, zoom out, pan, and perform other operations on the cloud image.

[0054] Click the Cloud Display-Acceleration Cloud Map submenu in the first submenu, and the platform will automatically obtain the data in the result file and open a new window to display the acceleration cloud map. Figure 11 In this window, you can zoom in, zoom out, pan, and perform other operations on the cloud image.

[0055] Click the stress curve-S16MAX submenu in the first submenu, and a dialog box will pop up, prompting you to select the strain gauge and the maximum stress position, such as Figure 12 As shown. Select the corresponding option in the drop-down menu and click "OK". The platform will draw the stress curve for that point and display it independently after the drawing is completed. In the curve display window, you can move the curve, enlarge it, change the coordinate layout, change the curve coordinate label name, change the curve shape and color, save the curve, etc. The operations in other locations are similar.

[0056] Note: During the drawing process, the platform will automatically open the ABAQUS interface to obtain data, and will automatically close after obtaining the data.

[0057] Click the Stress Curve-SANY submenu in the first submenu, and a dialog box will pop up. Enter the coordinates of any point in the dynamic load simulation model of the combined body. First enter the coordinate x, click "OK", then enter the coordinate y, click "OK", and finally enter the coordinate z, click "OK". Figure 13 After the input is completed, the platform will automatically draw the stress curve of the point, and it will be displayed independently after the drawing is completed, as shown in the figure below. Figure 14 As shown. Other operations on the curve are the same as above. When the input coordinates do not exist, a dialog box will pop up to prompt.

[0058] Note: The coordinate data of any point on the combined body dynamic load simulation model has been generated in advance. The data file is located in the ".\part_node_coordinate.txt" file and can be input according to the coordinate data in this file.

[0059] Click the Strain Curve - E16MAX submenu in the first submenu. A dialog box will pop up, prompting you to select the strain gauge and the maximum strain position. Select the appropriate option from the drop-down menu and click "OK." The platform will then plot the stress curve for that point and display it independently. In the curve display window, you can move the curve, zoom in on it, change the coordinate layout, modify the curve coordinate label name, change the curve shape and color, and save the curve. The remaining positions are similarly operated.

[0060] Note: During the drawing process, the platform will automatically open the ABAQUS interface to obtain data, and will automatically close after obtaining the data.

[0061] Click the Strain Curve - EANY submenu in the first submenu. A dialog box will pop up. Enter the coordinates of any point in the dynamic load simulation model of the assembly. First enter the x coordinate and click "OK", then enter the y coordinate and click "OK", and finally enter the z coordinate and click "OK". After entering, the platform will automatically draw the strain curve for that point and display it independently after drawing. Other operations on the curve are the same as above. If the entered coordinates do not exist, a dialog box will pop up again, prompting "The entered coordinates do not exist. Please re-enter them."

[0062] Note: The coordinate data of any point on the combined body dynamic load simulation model has been generated in advance. The data file is located in the ".\part_node_coordinate.txt" file and can be input according to the coordinate data in this file.

[0063] Click the "Acceleration Curve - A8MAX" submenu in the first submenu. A dialog box will pop up, prompting you to select the sensor and the maximum acceleration position. Select the corresponding option in the drop-down menu and click "OK". The platform will draw the acceleration curve for that point and display it independently after the drawing is completed. In the curve display window, you can move the curve, enlarge it, change the coordinate layout, change the curve coordinate label name, change the curve shape and color, save the curve, etc. The operations for other positions are similar.

[0064] Note: During the drawing process, the platform will automatically open the ABAQUS interface to obtain data, and will automatically close after obtaining the data.

[0065] Click the Acceleration Curve - AANY submenu in the first submenu. A dialog box will pop up. Enter the coordinates of any point in the combined dynamic load simulation model. First enter the x coordinate and click "OK", then enter the y coordinate and click "OK", and finally enter the z coordinate and click "OK". After entering, the platform will automatically draw the acceleration curve for that point and display it independently after drawing. Other curve operations are the same as above. If the entered coordinates do not exist, a dialog box will pop up again, prompting "The entered coordinates do not exist. Please re-enter them."

[0066] Note: The coordinate data of any point on the combined body dynamic load simulation model has been generated in advance. The data file is located in the ".\part_node_coordinate.txt" file and can be input according to the coordinate data in this file.

[0067] Click the Analysis Report - Stress Analysis Report submenu in the first submenu, and the platform will automatically query the relevant data. A dialog box will pop up when a report is generated. The content of the analysis report is as follows: Figure 15 shown.

[0068] Note: Before generating an analysis report, the previous analysis report cannot be opened.

[0069] Click the Analysis Report - Strain Analysis Report submenu in the first submenu, and the platform will automatically query the relevant data. A dialog box will pop up when a report is generated. The content of the analysis report is as follows: Figure 16 shown.

[0070] Note: Before generating an analysis report, the previous analysis report cannot be opened.

[0071] Click the Analysis Report - Acceleration Analysis Report submenu in the first submenu, the platform will automatically query the relevant data, and a dialog box will pop up to prompt the generated report. The content of the analysis report is as follows Figure 17 shown.

[0072] Note: Before generating an analysis report, the previous analysis report cannot be opened.

[0073] The specific implementation method of the docking lock force attenuation simulation analysis of the long life prediction simulation platform for the mechanical components of the space station docking mechanism of the present invention is as follows:

[0074] Before using the calculation simulation parameters function in the second submenu, you should first enter an integer from 0 to 20 in the text input box after the service time (years) in the simulation parameter calculation area. If the service time is not entered or the entered parameters are incorrect, a dialog box prompt will pop up.

[0075] After entering the correct service time, click Calculate Simulation Parameters in the second submenu. The platform will automatically calculate the simulation parameters required for the docking lock force attenuation simulation analysis based on the entered service time and display them in the corresponding area. After the calculation is completed, a dialog box will pop up.

[0076] The Update Simulation Parameters function in the second submenu is used only after the simulation parameters have been calculated. Otherwise, the default docking lock force decay simulation parameters will be used. The default simulation parameters are the simulation parameters calculated with a service time of 0. After the simulation parameters are calculated, click Update Simulation Parameters in the second submenu. The platform will update the calculated docking lock force decay simulation parameters to the docking lock force decay simulation parameter model ".\11moxing.cae". A dialog box will pop up when the update is complete.

[0077] Note: When updating simulation parameters, the docking lock force attenuation simulation model cannot be opened. You can open the docking lock force attenuation simulation model after the update to view the relevant parameters to verify whether the platform update parameters are correct.

[0078] Click Submit Calculation in the second submenu. The platform automatically calls ABAQUS to complete the calculation of the docking lock force attenuation simulation model, and the calculation time is displayed in the status bar. A dialog box pops up after the calculation is complete. The calculation of the docking lock force attenuation simulation model is relatively long. The Submit Calculation function is also illustrated using ".\mysample.cae" as an example. Before the calculation, there is no result file in the "test" folder, and the result calculation time in the status bar is 1 second. After the calculation is complete, the result file appears in the "test" folder, and the result calculation time in the status bar changes to 23 seconds. A dialog box pops up after the calculation is complete.

[0079] Click the Shell Stress Contour submenu in the second submenu. The platform will automatically retrieve the data from the result file and open a new window to display the shell stress contour. In this window, you can zoom in, out, and pan the contour.

[0080] Click the Hook Stress Contour Display submenu in the second submenu. The platform will automatically retrieve the data from the result file and open a new window to display the hook stress contour. In this window, you can zoom in, out, and pan the contour.

[0081] Click on the "Dock Lock Tension Cloud" submenu in the second submenu. The platform will automatically retrieve the data from the result file and open a new window to display the dock lock tension cloud. In this window, you can zoom in, out, and pan the cloud.

[0082] The Locking Tension Prediction function in the second submenu is used after submitting the calculation to generate the docking lock force decay simulation analysis result file. Clicking Locking Tension Prediction in the second submenu will cause the platform to obtain the remaining locking force data from the docking lock force decay simulation analysis results and complete the Locking Tension Prediction. The results are displayed in the Locking Tension Prediction area. After the prediction is completed, a dialog box pops up to prompt you.

[0083] The long-life prediction simulation platform for the mechanical components of the space station docking mechanism provided by the present invention can easily modify the finite element model parameters, predict the life of the docking lock through simulation cloud maps and curve results, and avoid frequent periodic inspections and maintenance; the development means, control methods, calculation algorithms, etc. involved in the platform provide an important empirical basis for the construction of other simulation platforms and have important practical significance.

[0084] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A space station docking mechanism mechanical component long life prediction simulation platform, characterized by: It includes a finite element simulation model, a combination dynamic load simulation analysis area, a result display area, a docking lock force attenuation simulation analysis area, a menu bar area, and a status bar area. The finite element simulation model includes a combination dynamic load finite element simulation model and a docking lock force attenuation finite element simulation model. The dynamic load simulation analysis area of ​​the assembly includes a material parameter area, a loading force area, and a loading moment area. The material parameter area is used to display material parameters including the density, Young's modulus, and Poisson's ratio of the docking frame simulation model; the loading force area is used to display the loading force parameters in three mutually perpendicular spatial directions applied by the dynamic load simulation of the assembly. F x 、 F y 、 F z The loading moment area is used to display the loading moment parameters of the three mutually perpendicular spatial directions applied by the dynamic load simulation. M x 、 M y 、 M z ; Input corresponding parameters in the material parameter area, loading force area, and loading moment area as input conditions for the dynamic load simulation analysis of the assembly; The docking lock force attenuation simulation analysis area includes a simulation parameter calculation area and a lock tension prediction area; The simulation parameter calculation area calculates the simulation parameters required for the docking lock force attenuation simulation analysis based on the input service time, and updates the simulation parameters to the docking lock force attenuation simulation model through the Update Simulation Parameters under the Docking Lock Force Attenuation Simulation Analysis menu. The lock system tension prediction area displays the remaining locking force of the docking lock, the docking lock locking force attenuation percentage, and whether the service requirements are met. The menu bar area includes a combination body dynamic load simulation analysis menu and a docking lock force attenuation simulation analysis menu; The combination body dynamic load simulation analysis menu includes a first submenu including: read constant load parameters, read sinusoidal load parameters, update constant load parameters, update sinusoidal load parameters, start constant load calculation, start sinusoidal load calculation, cloud map display - stress cloud map, cloud map display - strain cloud map, cloud map display - acceleration cloud map, stress curve - S16MAX, stress curve - SANY, strain curve - E16MAX, strain curve - EANY, acceleration curve - A8MAX, acceleration curve - AANY, analysis report - stress analysis report, analysis report - strain analysis report and analysis report - acceleration analysis report; The docking lock force attenuation simulation analysis menu includes a second submenu including calculation simulation parameters, update simulation parameters, submit calculation, shell stress cloud map, lock hook stress cloud map, docking lock tension cloud map and lock system tension prediction.

2. The space station docking mechanism mechanical component long life prediction simulation platform according to claim 1 is characterized in that: The read constant load parameters and read sine load parameters in the first submenu respectively read the material parameters, loading force parameters, and loading moment parameters set in the dynamic load simulation analysis area of ​​the assembly, and display them in the text box of the dynamic load simulation analysis area of ​​the assembly; the update constant load parameters and update sine load parameters respectively obtain the material parameters, loading force parameters, and loading moment parameters in the text box of the dynamic load simulation analysis area of ​​the assembly, and update the parameters to the dynamic load simulation model of the assembly; the start constant load calculation and the start sine load calculation create a dynamic load simulation analysis job for the assembly, submit the job for simulation calculation, and obtain the simulation calculation results; the cloud map display-stress cloud map, cloud map display-strain cloud map and cloud map display-acceleration cloud map display the stress cloud map, strain cloud map, and acceleration cloud map in the result display area, and realize the zooming in, zooming out, and rotating of the cloud map in the result display area; the stress curve-S16MAX selects 16 strain gauges of the assembly and the position with the maximum stress, draws the stress curve and displays it in a separate window; the stress curve-SANY According to the input coordinates of any point on the assembly, the stress curve of the point is drawn and displayed in a separate window; the strain curve - E16MAX selects the position with the largest strain among the 16 strain gauges on the assembly, draws the strain curve and displays it in a separate window; the strain curve - EANY according to the input coordinates of any point on the assembly, draws the strain curve of the point and displays it in a separate window; the acceleration curve - A8MAX selects the position with the largest acceleration among the 8 strain gauges on the assembly, draws the acceleration curve and displays it in a separate window; the acceleration curve - AANY Based on the input coordinates of any point on the assembly, the acceleration curve of that point is plotted and displayed in a separate window. The analysis report - stress analysis report generates a simplified stress analysis report, which includes the loading force and loading torque parameters of the dynamic load simulation analysis, 16 strain gauge numbers, coordinate positions, maximum stress position, and maximum stress value. The analysis report - strain analysis report generates a simplified strain analysis report, which includes the loading force and loading torque parameters of the dynamic load simulation analysis, 16 strain gauge numbers, coordinate positions, maximum strain position, and maximum strain value. The analysis report - acceleration analysis report generates a simplified acceleration analysis report, which includes the loading force and loading torque parameters of the dynamic load simulation analysis, 8 acceleration numbers, coordinate positions, maximum acceleration position, and maximum acceleration value. The calculation simulation parameters in the second submenu calculate the simulation parameters required for the docking lock force attenuation simulation analysis according to the service time input in the simulation parameter calculation area, and display them in the corresponding text box in the simulation parameter calculation area; The updating simulation parameters updates the simulation parameter calculation results to the docking lock force attenuation simulation model; the shell stress cloud map, the lock hook stress cloud map and the docking lock tension cloud map respectively display the shell stress cloud map, the lock hook stress cloud map and the docking lock tension cloud map in the result display area, and the cloud map can be zoomed in, zoomed out and rotated in the result display area; the lock system tension prediction calculates the remaining locking force of the docking lock, the docking lock locking force attenuation percentage and whether the service requirements are met in the lock system tension prediction area based on the docking lock initial load and the docking lock force attenuation simulation analysis results.

3. The space station docking mechanism mechanical component long life prediction simulation platform according to claim 1, characterized in that: The simulation parameters include disc spring stiffness, TB2 equivalent modulus, TC4R equivalent modulus and 7A04 equivalent modulus.

4. The space station docking mechanism mechanical component long life prediction simulation platform according to claim 3 is characterized in that: The result display area is used to display the results of dynamic load simulation analysis and docking lock force attenuation simulation analysis, and the results include stress and strain cloud map of the assembly, acceleration cloud map, shell stress cloud map, lock hook stress cloud map and docking lock tension cloud map.

5. The space station docking mechanism mechanical component long life prediction simulation platform according to claim 3, characterized in that: The status bar area is located at the bottom and displays prompt information including calculation status and calculation time.

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