A stability testing system for an assembled excavator bucket anchor working platform

Abstract

The present invention belongs to the technical field of stability testing of bucket anchor working platforms of excavators, and relates to a stability testing system for bucket anchor working platforms of assembled excavators. The present invention is based on a constructed three-dimensional model creation module, a finite element model acquisition model, a finite element model detection and analysis module, a physical test verification module, a comparative analysis module, and a cloud database. It is helpful to improve the design quality and performance of the bucket anchor working platform of the excavator, and also provides strong technical support and guarantee for the manufacture, use and maintenance of the bucket anchor working platform of the excavator, and helps to discover and solve potential problems before putting it into practical application, avoiding rework and losses caused by design defects in actual production, which not only reduces the risk of accidents, but also saves time and cost, and also helps to obtain more accurate data, thereby discovering possible problems and improvement space in the platform design, and providing a basis for subsequent optimization design.

Description

Technical Field

[0001] The invention belongs to the technical field of stability testing of an excavator bucket type anchor working platform, and relates to a stability testing system for an assembled excavator bucket type anchor working platform. Background Art

[0002] The assembled excavator bucket anchor work platform is a work platform formed by welding square steel and steel pipes. It is welded with the excavator bucket, and the anchor drill is fixed in the operating platform. The operating platform and the excavator are connected with a quick-connect joint, which does not affect the normal use of the excavator. And the working platform can be adjusted to any position by moving the excavator for drilling construction.

[0003] Stability test is an important means to evaluate whether the assembled excavator bucket anchor work platform can meet the safety, reliability and stability requirements under long-term operation or specific working conditions. Therefore, the stability test of the assembled excavator bucket anchor work platform is of great significance and role.

[0004] The traditional anchor frame beam construction is to set up a steel pipe scaffold on the slope surface after the slope is excavated and formed, set up a transverse anchor drilling platform on the scaffold, and then install a drill to drill holes. However, the traditional scaffolding construction of the cut slope anchor frame beam has problems such as the scaffolding erection and removal requires a lot of manpower, and the anchor drilling rig positioning is all carried out manually, resulting in slow construction progress and inaccurate anchor positioning. Summary of the invention

[0005] In view of this, in order to solve the problems raised in the above background technology, a stability testing system for an assembled excavator bucket anchor working platform is now proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides a stability testing system for an assembled excavator bucket anchor working platform, including: a three-dimensional model creation module, a finite element model acquisition model, a finite element model detection and analysis module, a physical test verification module, a comparative analysis module and a cloud database.

[0007] The three-dimensional model creation module is connected to the finite element model acquisition model, the finite element model acquisition model is connected to the finite element model detection and analysis module, the finite element model detection and analysis module is connected to the physical test verification module, the comparative analysis module is respectively connected to the finite element model detection and analysis module and the physical test verification module, and the cloud database is respectively connected to the finite element model detection and analysis module and the physical test verification module.

[0008] The three-dimensional model creation module is used to create a three-dimensional model of a target assembled excavator bucket anchor working platform in a three-dimensional modeling software.

[0009] The finite element model acquisition model is used to import the three-dimensional model of the target assembled excavator bucket anchor working platform into the FEA software, perform mesh division, and obtain each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform.

[0010] The finite element model detection and analysis module is used to simulate and detect the three-dimensional model of the target assembled excavator bucket anchor working platform, obtain the operation data of the three-dimensional model of the target assembled excavator bucket anchor working platform, and analyze the predicted stability of the target assembled excavator bucket anchor working platform.

[0011] The physical test verification module is used to make a scaled model of the target assembled excavator bucket anchor working platform, conduct actual laboratory working environment testing, obtain the operating data of the scaled model of the target assembled excavator bucket anchor working platform, and analyze the stability of the target assembled excavator bucket anchor working platform.

[0012] The comparative analysis module is used to analyze and compare the predicted stability of the target assembled excavator bucket anchor working platform with its stability, and to perform optimization and feedback accordingly.

[0013] The cloud database is used to store the reference stress of each unit of the three-dimensional model of the target assembled excavator bucket anchor working platform under various load conditions, store the maximum load of the target assembled excavator bucket anchor working platform, and store the resonance frequency of the target assembled excavator bucket anchor working platform under various load conditions.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention creates a three-dimensional model of a target assembled excavator bucket anchor working platform, imports it into FEA software, and performs mesh division to obtain each unit of the three-dimensional model of the target assembled excavator bucket anchor working platform, thereby helping to improve the accuracy of the target assembled excavator bucket anchor working platform, the accuracy and comprehensiveness of the analysis results, and the design optimization and improvement, which in turn helps to improve the design quality and performance of the target assembled excavator bucket anchor working platform, and also provides strong technical support and guarantee for its manufacture, use and maintenance.

[0015] 2. The present invention obtains the predicted stability of the target assembled excavator bucket anchor working platform based on FEA software analysis, which helps to discover and solve potential problems of the target assembled excavator bucket anchor working platform before it is put into practical application, and also avoids rework and losses caused by design defects in actual production, thereby reducing the risk of accidents and saving time and costs.

[0016] 3. The present invention obtains the stability of the target assembled excavator bucket anchor working platform based on physical experimental analysis, which helps to timely discover and eliminate potential safety hazards, ensure the safety of construction personnel, reduce work interruptions caused by failures or shutdowns, and improve the overall efficiency of anchor operations. In addition, in a laboratory environment, the test conditions can be controlled more accurately to obtain more accurate data.

[0017] 4. The present invention analyzes and compares the predicted stability of the target assembled excavator bucket anchor working platform with its stability, and optimizes and provides feedback accordingly, which helps to discover possible problems and room for improvement in the platform design, provides a basis for subsequent optimization design, and is conducive to quickly evaluating the feasibility of different design schemes and accelerating the product development process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of system module connection of the present invention. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 As shown, the present invention provides a stability test system for an assembled excavator bucket anchor working platform, and the specific modules are distributed as follows: a three-dimensional model creation module, a finite element model acquisition model, a finite element model detection and analysis module, a physical test verification module, a comparative analysis module, and a cloud database. Among them, the connection between the modules is as follows: the three-dimensional model creation module is connected to the finite element model acquisition model, the finite element model acquisition model is connected to the finite element model detection and analysis module, the finite element model detection and analysis module is connected to the physical test verification module, the comparative analysis module is respectively connected to the finite element model detection and analysis module and the physical test verification module, and the cloud database is respectively connected to the finite element model detection and analysis module and the physical test verification module.

[0022] The three-dimensional model creation module is used to create a three-dimensional model of a target assembled excavator bucket anchor working platform in a three-dimensional modeling software.

[0023] As a preferred feasibility example, the three-dimensional model of the target assembled excavator bucket anchor working platform is created in the three-dimensional modeling software, and its specific operations include: A1, inputting the technical specifications of the target assembled excavator bucket anchor working platform.

[0024] It should be further explained that the technical specifications include but are not limited to specific dimensions, materials and connection methods.

[0025] A2. Draw the shapes of the parts of the target assembled excavator bucket anchor working platform in a two-dimensional environment, further convert them to obtain the three-dimensional bodies of the parts of the target assembled excavator bucket anchor working platform, and add features to them to obtain the three-dimensional entities of the parts of the target assembled excavator bucket anchor working platform.

[0026] It needs to be further explained that the various parts include but are not limited to the platform bottom plate, the bracket, the bucket component and the anchor rod hole.

[0027] The specific operations of converting the three-dimensional bodies of the parts of the target assembled excavator bucket anchor working platform include but are not limited to commands such as stretching, rotating, and sweeping.

[0028] The added features include, but are not limited to, details such as holes, threads, chamfers, and fillets.

[0029] A3. In a three-dimensional modeling environment, assemble the three-dimensional entities of the various parts of the target assembled excavator bucket anchor working platform to the correct position, thereby obtaining a three-dimensional model of the target assembled excavator bucket anchor working platform.

[0030] The finite element model acquisition model is used to import the three-dimensional model of the target assembled excavator bucket anchor working platform into the FEA software, perform mesh division, and obtain each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform.

[0031] As a preferred feasibility example, the specific acquisition method of each unit belonging to the target assembled excavator bucket anchor working platform three-dimensional model includes: B1. Setting the global grid size control of the target assembled excavator bucket anchor working platform three-dimensional model in FEA software, and defining the minimum and maximum unit sizes.

[0032] B2. The target assembled excavator bucket anchor working platform three-dimensional model is meshed according to the automatically selected mesh type to obtain the initial units belonging to the target assembled excavator bucket anchor working platform three-dimensional model, and the mesh quality is checked. The mesh size of each unit with unqualified quality is adjusted or the mesh type is changed to obtain the units belonging to the target assembled excavator bucket anchor working platform three-dimensional model.

[0033] The present invention creates a three-dimensional model of a target assembled excavator bucket anchor working platform, imports it into FEA software, and performs mesh division to obtain each unit of the three-dimensional model of the target assembled excavator bucket anchor working platform, thereby helping to improve the accuracy of the target assembled excavator bucket anchor working platform, the accuracy and comprehensiveness of the analysis results, and the design optimization and improvement, which in turn helps to improve the design quality and performance of the target assembled excavator bucket anchor working platform, and also provides strong technical support and guarantee for its manufacture, use and maintenance.

[0034] The finite element model detection and analysis module is used to simulate and detect the three-dimensional model of the target assembled excavator bucket anchor working platform, obtain the operation data of the three-dimensional model of the target assembled excavator bucket anchor working platform, and analyze the predicted stability of the target assembled excavator bucket anchor working platform.

[0035] The physical test verification module is used to make a scaled model of the target assembled excavator bucket anchor working platform, conduct actual laboratory working environment testing, obtain the operating data of the scaled model of the target assembled excavator bucket anchor working platform, and analyze the stability of the target assembled excavator bucket anchor working platform.

[0036] As a preferred feasibility example, the operating data of the target assembled excavator bucket anchor working platform three-dimensional model and scaled model include static load operating data and dynamic load operating data.

[0037] Among them, the static load operation data of the three-dimensional model includes the static center of gravity position coordinates under each load condition corresponding to each operation scene and the stress, strain and displacement of each unit to which it belongs.

[0038] It needs to be further explained that the various operation scenarios include but are not limited to various mountain roads, railways and slopes of various water conservancy projects.

[0039] The various load conditions include, but are not limited to, various load conditions resulting from the target assembled excavator's own weight, the weight of additional equipment, the weight of the operator and the weight of materials appearing in different combinations on the target assembled excavator bucket anchor working platform.

[0040] Specifically, one load condition is the sum of the weight of the target assembled excavator itself, the weight of a certain additional equipment and the weight of an operator, and another load condition is the sum of the weight of the target assembled excavator itself, the weight of a certain additional equipment and the weight of two operators.

[0041] It is necessary to further explain that the specific method of obtaining the static center of gravity position coordinates of the target assembled excavator bucket anchor bolt working platform three-dimensional model under each operating scene and each load condition is as follows: the static center of gravity position of the target assembled excavator bucket anchor bolt working platform three-dimensional model under each operating scene and each load condition can be obtained by performing static analysis through FEA software. Further, the surface geometric center of the target assembled excavator bucket anchor bolt working platform three-dimensional model is taken as the coordinate origin, a horizontal straight line is drawn through the coordinate origin as the x-axis, a straight line perpendicular to the x-axis is drawn through the coordinate origin as the y-axis, and a straight line perpendicular to the surface of the target assembled excavator bucket anchor bolt working platform is drawn through the coordinate origin as the z-axis, thereby obtaining the three-dimensional coordinate system of the target assembled excavator bucket anchor bolt working platform three-dimensional model, in which the coordinates of the static center of gravity of the target assembled excavator bucket anchor bolt working platform three-dimensional model under each operating scene and each load condition are obtained, and recorded as the static center of gravity position coordinates of the target assembled excavator bucket anchor bolt working platform three-dimensional model under each operating scene and each load condition.

[0042] The specific method for obtaining the stress, strain and displacement of each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each working scenario is: using FEA software to directly detect each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each working scenario, so as to obtain the stress, strain and displacement of each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each working scenario.

[0043] The static load operation data of the scaled model include the coordinates of the static center of gravity position under each load condition in each operation scenario and the stress, strain and displacement of each stress concentration area.

[0044] It needs to be further explained that the stress concentration areas are the units belonging to the target assembled excavator bucket anchor working platform three-dimensional model whose stress is greater than the set stress threshold.

[0045] It needs to be further explained that the specific method of obtaining the static center of gravity position coordinates of the scaled model of the target assembled excavator bucket anchor working platform under each load condition in each operating scene is: using the deployed three-dimensional scanner to scan the scaled model of the target assembled excavator bucket anchor working platform under each load condition in each operating scene, and constructing a visualization model of the scaled model of the target assembled excavator bucket anchor working platform under each load condition in each operating scene according to the scanning data, and further extracting the static center of gravity position of the visualization model of the scaled model of the target assembled excavator bucket anchor working platform under each load condition in each operating scene. The three-dimensional coordinate system of the three-dimensional model of the target assembled excavator bucket anchor working platform can be constructed in the same way as the three-dimensional coordinate system of the target assembled excavator bucket anchor working platform scale model. The three-dimensional coordinate system of the visualization model of the target assembled excavator bucket anchor working platform scale model can be obtained in the same way, from which the static center of gravity coordinates of the visualization model of the target assembled excavator bucket anchor working platform scale model under each operating scene corresponding to each load condition are obtained, and are recorded as the static center of gravity position coordinates of the target assembled excavator bucket anchor working platform scale model under each operating scene corresponding to each load condition.

[0046] The specific method for obtaining the stress, strain and displacement of each stress concentration area of ​​the scaled model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each operating scenario is as follows: the visualization model of the scaled model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each operating scenario is imported into the FEA software, and then the stress, strain and displacement of each stress concentration area of ​​the scaled model of the target assembled excavator bucket anchor working platform under each load condition corresponding to each operating scenario is directly analyzed according to the FEA software.

[0047] The dynamic load operation data of the three-dimensional model and the scaled model include the expected maximum load in each operation scenario and the dynamic center of gravity position coordinates, vibration frequency, overturning torque and stability moment under each load condition in each operation scenario.

[0048] It should be further explained that the specific method for obtaining the expected maximum load of the target assembled excavator bucket anchor working platform three-dimensional model and the scaled model in each operation scenario is: in the FEA software, the target assembled excavator bucket anchor working platform three-dimensional model in each operation scenario is gradually loaded until it reaches the limit state, and the load at this time is recorded as the expected maximum load of the target assembled excavator bucket anchor working platform three-dimensional model in each operation scenario. Similarly, the expected maximum load of the target assembled excavator bucket anchor working platform scaled model in each operation scenario can be obtained.

[0049] Among them, the limit state is the maximum deformation state under the condition that the three-dimensional model of the target assembled excavator bucket anchor working platform is intact.

[0050] The specific method for obtaining the dynamic center of gravity position coordinates of the target assembled excavator bucket anchor working platform three-dimensional model and scaled model under each operating scene corresponding to each load condition is as follows: according to the method for obtaining the static center of gravity position coordinates of the target assembled excavator bucket anchor working platform three-dimensional model and scaled model under each operating scene corresponding to each load condition, the dynamic center of gravity position coordinates of the target assembled excavator bucket anchor working platform three-dimensional model and scaled model under each operating scene corresponding to each load condition can be obtained similarly.

[0051] The specific method for obtaining the vibration frequency of the target assembled excavator bucket anchor working platform three-dimensional model and the scaled model under each operating scenario corresponding to each load condition is as follows: detecting the number of times the target assembled excavator bucket anchor working platform three-dimensional model vibrates from top to bottom under each operating scenario corresponding to each load condition within a set time period, further dividing it by the set time period, and recording the quotient as the vibration frequency of the target assembled excavator bucket anchor working platform three-dimensional model under each operating scenario corresponding to each load condition. Similarly, the vibration frequency of the target assembled excavator bucket anchor working platform scaled model under each operating scenario corresponding to each load condition can be obtained.

[0052] The specific method for obtaining the overturning torque of the target assembled excavator bucket anchor working platform three-dimensional model and the scaled model under each operating scene corresponding to each load condition is as follows: the three-dimensional model of the target assembled excavator bucket anchor working platform under each operating scene corresponding to each load condition is subjected to mechanical analysis in FEA software to obtain the various forces of the target assembled excavator bucket anchor working platform three-dimensional model under each operating scene corresponding to each load condition. And the vertical distance from the point of action of each force to the fulcrum of the target assembled excavator bucket anchor working platform three-dimensional model ,in , is the number of each operation scene, , is the number of each load condition, , is the number of each force, according to the calculation model Obtain the overturning torque of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding load conditions The visualization model of the scaled model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition is imported into the FEA software. Further, according to the acquisition method of the rollover torque of the three-dimensional model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition, the rollover torque of the scaled model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition can be obtained in the same way.

[0053] It needs to be further explained that the various forces include but are not limited to the weight of the excavator and its supporting force on the platform, the gravity of the anchor bolter, the dynamic operating force during the anchor bolt operation, the gravity of the additional equipment and the gravity of the operator, etc.

[0054] The specific method for obtaining the stability moment of the target assembled excavator bucket anchor working platform three-dimensional model and the scaled model under each operating scene and each load condition is as follows: a mechanical analysis is performed on the target assembled excavator bucket anchor working platform three-dimensional model under each operating scene and each load condition in the FEA software to obtain the total platform gravity of the target assembled excavator bucket anchor working platform three-dimensional model under each operating scene and each load condition. and excavator support As well as the vertical distance from the static center of gravity of the platform and the point of action of the excavator support force to the fulcrum of the target assembled excavator bucket anchor work platform 3D model , according to the calculation model The stability moment of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding load conditions is obtained. The visualization model of the scaled model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition is imported into the FEA software. Further, according to the acquisition method of the stability moment of the three-dimensional model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition, the stability moment of the scaled model of the target assembled excavator bucket anchor working platform under each operating scenario and each load condition can be obtained in the same way.

[0055] As a preferred feasibility example, the predicted stability analysis process of the target assembled excavator bucket anchor working platform needs to construct the predicted static load stability of the target assembled excavator bucket anchor working platform under various operating scenarios. The specific analysis method includes: extracting the stress of each unit of the target assembled excavator bucket anchor working platform under each operating scenario corresponding to each load condition ,strain and displacement ,in , is the number of each operation scene, , is the number of each load condition, , The predicted static load stability of the target assembled excavator bucket anchor working platform under various working scenarios is analyzed. ,in The target assembled excavator bucket anchor working platform 3D model extracted from the cloud database belongs to Unit in The reference stress under each loading condition is is the allowable difference between the set stress and the reference stress, are the allowable strain and allowable displacement of the target assembled excavator bucket anchor working platform, is a natural constant.

[0056] As a preferred feasibility example, the predicted stability analysis process of the target assembled excavator bucket anchor working platform needs to construct the predicted dynamic load stability of the target assembled excavator bucket anchor working platform under various operating scenarios. The specific analysis method includes: extracting the static center of gravity position coordinates of the target assembled excavator bucket anchor working platform three-dimensional model under various operating scenarios corresponding to various load conditions and the dynamic center of gravity position coordinates , analyze the center of gravity offset of the target assembled excavator bucket anchor work platform 3D model under various operating scenarios and corresponding load conditions .

[0057] Extract the expected maximum load of the target assembled excavator bucket anchor working platform 3D model in each working scenario , analyze the load safety index of the target assembled excavator bucket anchor working platform 3D model in various working scenarios ,in is the maximum load of the target assembled excavator bucket anchor working platform extracted from the cloud database.

[0058] Extract the overturning torque of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions and stability moment Analyze the stability index of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions .

[0059] It needs to be further explained that the stability index is an important indicator for evaluating the anti-overturning ability of the target assembled excavator bucket anchor working platform, which is defined as the ratio of the stability moment to the overturning torque.

[0060] Extract the vibration frequency of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding to each load condition , analyze the vibration safety index of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions ,in The target assembled excavator bucket anchor working platform extracted from the cloud database is The resonant frequency under each load condition is The set target is the allowable vibration frequency of the assembled excavator bucket anchor working platform under safe conditions.

[0061] Analyze the predicted dynamic load stability of the target assembled excavator bucket anchor work platform in various operating scenarios ,in are the weight factors of the predicted dynamic load stability corresponding to the set center of gravity offset, load safety index, stability index and vibration safety index respectively.

[0062] It should be further explained that the weight factors of the predicted static load stability corresponding to the set center of gravity offset, load safety index, stability index and vibration safety index can be set to 0.15, 0.25, 0.45 and 0.15 respectively.

[0063] The center of gravity offset is an important factor affecting the stability of the target assembled excavator bucket anchor work platform. When its center of gravity is offset, it will cause an overturning moment in its structure, increasing the risk of instability of the target assembled excavator bucket anchor work platform. Especially under dynamic loads or wind loads, the impact of the center of gravity offset is more significant. Therefore, the weight factor of the predicted dynamic load stability corresponding to the center of gravity offset is assigned to 0.15. This shows that it occupies a certain importance among the many factors affecting the static load stability, but it is not the most important factor.

[0064] The load safety index reflects the safety margin of the target prefabricated excavator bucket anchor work platform when it bears the design load. It is an important indicator to measure the strength, stiffness and stability of the structure. The higher the load safety index, the better the safety of the target prefabricated excavator bucket anchor work platform and the stronger its ability to resist damage. Therefore, the weight factor of the predicted dynamic load stability corresponding to the load safety index is assigned to 0.25, reflecting its important role in the prediction of static load stability.

[0065] The stability index is a measure of the ability of the target prefabricated excavator bucket anchor work platform to maintain its shape and position unchanged under static and dynamic loads. It is one of the core indicators of the stability of the target prefabricated excavator bucket anchor work platform and is of great significance for preventing structural instability and collapse. Therefore, the weight factor of the predicted dynamic load stability corresponding to the stability index is assigned to 0.45, indicating that it occupies the most important position in the static load stability prediction.

[0066] The vibration safety index reflects the stability and safety of the target assembled excavator bucket anchor work platform under vibration load. Although vibration load may not be the main load type borne by the structure in some cases, its impact on the long-term stability and fatigue life of the structure cannot be ignored. Therefore, the weight factor of the predicted dynamic load stability corresponding to the vibration safety index is assigned to 0.15, indicating that it has a certain role in the prediction of static load stability, but the impact is relatively small compared with other factors.

[0067] As a preferred feasibility example, the specific method of obtaining the predicted stability of the target assembled excavator bucket anchor working platform is: according to the analytical formula Get the predicted stability of the target assembled excavator bucket anchor working platform ,in They are the weight coefficients corresponding to the set predicted static load stability and predicted dynamic load stability respectively.

[0068] It should be further explained that the weight coefficients corresponding to the set predicted static load stability and predicted dynamic load stability can be set to 0.3 and 0.7 respectively.

[0069] The static load is the load borne by the target prefabricated excavator bucket anchor work platform in a static state. The stability of the static load is directly related to the basic stability and long-term safety of the target prefabricated excavator bucket anchor work platform. Therefore, the weight coefficient corresponding to the predicted static load stability is assigned a value of 0.3.

[0070] The stability of dynamic load is directly related to the safety and durability of the target assembled excavator bucket anchor work platform. Under the action of dynamic force, the structure may produce vibration, fatigue and other problems, which will affect its overall performance and life. Therefore, the weight coefficient corresponding to the predicted dynamic load stability is assigned to 0.7.

[0071] The predicted stability of the target assembled excavator bucket anchor working platform is compared with the set predicted stability threshold. If it is less than the predicted stability threshold, the predicted stability of the target assembled excavator bucket anchor working platform is recorded as unstable; otherwise, the predicted stability of the target assembled excavator bucket anchor working platform is recorded as stable.

[0072] The present invention obtains the predicted stability of the target assembled excavator bucket anchor working platform according to FEA software analysis, thereby helping to discover and solve potential problems of the target assembled excavator bucket anchor working platform before it is put into practical application, and also avoiding rework and losses caused by design defects in actual production, thereby reducing the risk of accidents and saving time and costs.

[0073] As a preferred feasibility example, the specific method for obtaining the stability of the target assembled excavator bucket anchor working platform is: the stability of the target assembled excavator bucket anchor working platform can be obtained by the method for obtaining the predicted stability of the target assembled excavator bucket anchor working platform.

[0074] The present invention obtains the stability of the target assembled excavator bucket anchor working platform based on physical experimental analysis, which helps to timely discover and eliminate potential safety hazards, ensure the safety of construction personnel, reduce work interruptions caused by failures or shutdowns, and improve the overall efficiency of anchor operations. In addition, in a laboratory environment, the test conditions can be controlled more accurately to obtain more accurate data.

[0075] The comparative analysis module is used to analyze and compare the predicted stability of the target assembled excavator bucket anchor working platform with its stability, and to perform optimization and feedback accordingly.

[0076] As a preferred feasibility example, the comparative analysis module specifically includes: comparing the predicted stability of the target assembled excavator bucket anchor working platform with its stability. If the stabilities are consistent and both are stable, no optimization is required, and the results are fed back.

[0077] If the stability is inconsistent, it is further analyzed according to predefined principles and optimized.

[0078] If the stability is consistent and both are unstable, the results will be fed back.

[0079] As a preferred feasibility example, the specific content of the predefined principles includes: obtaining the predicted static load stability and predicted dynamic load stability of the target assembled excavator bucket anchor working platform in each operating scenario, as well as the center of gravity offset, load safety index, stability index and vibration safety index of the three-dimensional model of the target assembled excavator bucket anchor working platform in each operating scenario.

[0080] The static load stability and dynamic load stability of the target assembled excavator bucket anchor working platform in each operating scenario as well as the center of gravity offset, load safety index, stability index and vibration safety index of the scaled model of the target assembled excavator bucket anchor working platform in each operating scenario are obtained.

[0081] Further comparative analysis is carried out according to the preset analysis principles.

[0082] It should be further explained that the preset analysis principle is specifically as follows: C1. Extract the predicted static load stability of the target assembled excavator bucket anchor working platform in each working scenario And its static load stability , according to the calculation model Obtain the difference between the predicted static load stability of the target assembled excavator bucket anchor working platform and its static load stability ,in , is the number of each operation scene, is the number of working scenes, which is further compared with the set difference threshold. If it is less than or equal to the set difference threshold, the matching of the static load stability of the target assembled excavator bucket anchor working platform 3D model and its scaled model is recorded as mismatch; otherwise, the matching of the static load stability of the target assembled excavator bucket anchor working platform 3D model and its scaled model is recorded as match.

[0083] Similarly, the matching of the dynamic load stability, center of gravity offset, load safety index, stability index and vibration safety index of the target assembled excavator bucket anchor working platform three-dimensional model and its scaled model can be obtained.

[0084] The mismatched parts in the static load stability and dynamic load stability as well as the center of gravity offset, load safety index, stability index and vibration safety index of the target assembled excavator bucket anchor working platform three-dimensional model and its scaled model are identified and fed back.

[0085] Further check whether the geometric dimensions, material properties, boundary conditions and loads of the target assembled excavator bucket anchor working platform 3D model and its scaled model are correctly input. Based on the inspection results, the target assembled excavator bucket anchor working platform 3D model and its scaled model are corrected.

[0086] The cloud database is used to store the reference stress of each unit belonging to the three-dimensional model of the target assembled excavator bucket anchor working platform under various load conditions, store the maximum load of the target assembled excavator bucket anchor working platform, and store the resonance frequency of the target assembled excavator bucket anchor working platform under various load conditions.

[0087] The present invention analyzes and compares the predicted stability of the target assembled excavator bucket anchor working platform with its stability, and optimizes and provides feedback accordingly, which helps to discover possible problems and improvement space in the platform design, provides a basis for subsequent optimization design, and is conducive to quickly evaluating the feasibility of different design schemes and accelerating the product development process.

[0088] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A stability test system for an assembled excavator bucket anchor work platform, characterized in that: include: A three-dimensional model creation module, used to create a three-dimensional model of a target assembled excavator bucket anchor working platform in a three-dimensional modeling software; The finite element model acquisition model is used to import the three-dimensional model of the target assembled excavator bucket anchor working platform into the FEA software, perform mesh division, and obtain each unit of the three-dimensional model of the target assembled excavator bucket anchor working platform; The finite element model detection and analysis module is used to simulate and detect the three-dimensional model of the target assembled excavator bucket anchor working platform, obtain the operation data of the three-dimensional model of the target assembled excavator bucket anchor working platform, and analyze the predicted stability of the target assembled excavator bucket anchor working platform; The physical test verification module is used to make a scaled model of the target assembled excavator bucket anchor working platform, conduct laboratory actual working environment testing, obtain the operating data of the scaled model of the target assembled excavator bucket anchor working platform, and analyze the stability of the target assembled excavator bucket anchor working platform; A comparative analysis module is used to analyze and compare the predicted stability of the target assembled excavator bucket anchor work platform with its stability, and to optimize and provide feedback accordingly; A cloud database is used to store the reference stress of each unit of the three-dimensional model of the target assembled excavator bucket anchor working platform under each load condition, store the maximum load of the target assembled excavator bucket anchor working platform, and store the resonance frequency of the target assembled excavator bucket anchor working platform under each load condition; The operating data of the three-dimensional model and the scaled model of the target assembled excavator bucket anchor working platform include static load operating data and dynamic load operating data; The static load operation data of the three-dimensional model includes the coordinates of the static center of gravity position under each load condition in each operation scene and the stress, strain and displacement of each unit to which it belongs; The static load operation data of the scaled model includes the coordinates of the static center of gravity position under each load condition in each operation scenario and the stress, strain and displacement of each stress concentration area to which it belongs; The dynamic load operation data of the three-dimensional model and the scaled model include the expected maximum load in each operation scenario and the dynamic center of gravity position coordinates, vibration frequency, overturning torque and stability moment under each load condition in each operation scenario.

2. The stability testing system for an assembled excavator bucket anchor work platform according to claim 1, characterized in that: The specific operations of creating a three-dimensional model of a target assembled excavator bucket anchor working platform in the three-dimensional modeling software include: A1. Input the technical specifications of the target assembled excavator bucket anchor work platform; A2. Draw the shapes of the parts of the target assembled excavator bucket anchor working platform in a two-dimensional environment, further convert them to obtain the three-dimensional bodies of the parts of the target assembled excavator bucket anchor working platform, and add features therein to obtain the three-dimensional entities of the parts of the target assembled excavator bucket anchor working platform; A3. In a three-dimensional modeling environment, assemble the three-dimensional entities of the various parts of the target assembled excavator bucket anchor working platform to the correct position, thereby obtaining a three-dimensional model of the target assembled excavator bucket anchor working platform.

3. The stability testing system for an assembled excavator bucket anchor work platform according to claim 1, characterized in that: The specific acquisition method of each unit of the target assembled excavator bucket anchor working platform three-dimensional model includes: B1. Set the global mesh size control of the target assembled excavator bucket anchor work platform 3D model in FEA software and define the minimum and maximum unit sizes; B2. The target assembled excavator bucket anchor working platform three-dimensional model is meshed according to the automatically selected mesh type to obtain the initial units belonging to the target assembled excavator bucket anchor working platform three-dimensional model, and the mesh quality is checked. The mesh size of each unit with unqualified quality is adjusted or the mesh type is changed to obtain the units belonging to the target assembled excavator bucket anchor working platform three-dimensional model.

4. The stability testing system for an assembled excavator bucket anchor work platform according to claim 1, characterized in that: In the process of predictive stability analysis of the target assembled excavator bucket anchor working platform, it is necessary to construct the predicted static load stability of the target assembled excavator bucket anchor working platform in various working scenarios. The specific analysis methods include: Extract the stress of each unit of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding load conditions ,strain and displacement ,in , is the number of job scenarios, is the number of each operation scene, , is the number of each load condition, , The predicted static load stability of the target assembled excavator bucket anchor working platform under various working scenarios is analyzed. ,in The target assembled excavator bucket anchor working platform 3D model extracted from the cloud database belongs to Unit in The reference stress under each loading condition is is the allowable difference between the set stress and the reference stress, are the allowable strain and allowable displacement of the target assembled excavator bucket anchor working platform, is a natural constant.

5. The stability testing system for an assembled excavator bucket anchor work platform according to claim 4, characterized in that: In the process of predictive stability analysis of the target assembled excavator bucket anchor working platform, it is necessary to construct the predicted dynamic load stability of the target assembled excavator bucket anchor working platform in various working scenarios. The specific analysis methods include: Extract the static center of gravity position coordinates of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding to each load condition and the dynamic center of gravity position coordinates , analyze the center of gravity offset of the target assembled excavator bucket anchor work platform 3D model under various operating scenarios and corresponding load conditions ; Extract the expected maximum load of the target assembled excavator bucket anchor working platform 3D model in each working scenario , analyze the load safety index of the target assembled excavator bucket anchor working platform 3D model in various working scenarios ,in The maximum load of the target assembled excavator bucket anchor working platform extracted from the cloud database; Extract the overturning torque of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions and stability moment Analyze the stability index of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions ; Extract the vibration frequency of the target assembled excavator bucket anchor working platform 3D model under each operating scenario and corresponding load conditions , analyze the vibration safety index of the target assembled excavator bucket anchor working platform 3D model under various operating scenarios and corresponding load conditions ,in The target assembled excavator bucket anchor working platform extracted from the cloud database is The resonant frequency under each load condition is The permissible vibration frequency of the target assembled excavator bucket anchor working platform under safe conditions; Analyze the predicted dynamic load stability of the target assembled excavator bucket anchor work platform in various operating scenarios ,in are the weight factors of the predicted dynamic load stability corresponding to the set center of gravity offset, load safety index, stability index and vibration safety index respectively.

6. The stability testing system for an assembled excavator bucket anchor work platform according to claim 5, characterized in that: The specific method for obtaining the predicted stability of the target assembled excavator bucket anchor working platform is as follows: According to the analytical formula Get the predicted stability of the target assembled excavator bucket anchor working platform ,in They are the weight coefficients corresponding to the set predicted static load stability and predicted dynamic load stability; The predicted stability of the target assembled excavator bucket anchor working platform is compared with the set predicted stability threshold. If it is less than the predicted stability threshold, the predicted stability of the target assembled excavator bucket anchor working platform is recorded as unstable; otherwise, the predicted stability of the target assembled excavator bucket anchor working platform is recorded as stable.

7. The stability testing system for an assembled excavator bucket anchor work platform according to claim 6, characterized in that: The specific method for obtaining the stability of the target assembled excavator bucket anchor working platform is: the stability of the target assembled excavator bucket anchor working platform can be obtained in the same manner as the method for obtaining the predicted stability of the target assembled excavator bucket anchor working platform.

8. The stability testing system for an assembled excavator bucket anchor work platform according to claim 1, characterized in that: The comparative analysis module includes: Compare the predicted stability of the target assembled excavator bucket anchor work platform with its stability. If the stability is consistent and both are stable, no optimization is required and the results are fed back; If the stability is inconsistent, it is further analyzed according to predefined principles and optimized; If the stability is consistent and both are unstable, the results will be fed back.

9. The stability testing system for an assembled excavator bucket anchor work platform according to claim 8, characterized in that: The specific contents of the predefined principles include: Obtain the predicted static load stability and predicted dynamic load stability of the target assembled excavator bucket anchor working platform in each operation scenario, as well as the center of gravity offset, load safety index, stability index and vibration safety index of the three-dimensional model of the target assembled excavator bucket anchor working platform in each operation scenario; Obtain the static load stability and dynamic load stability of the target assembled excavator bucket anchor working platform in each operation scenario, as well as the center of gravity offset, load safety index, stability index and vibration safety index of the scaled model of the target assembled excavator bucket anchor working platform in each operation scenario; Further comparative analysis is carried out according to the preset analysis principles.

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