Soft collision checking method for BIM (Building Information Modeling) arrangement of multi-physics hydropower station equipment based on 3DE secondary development

Abstract

The invention provides a soft collision checking method for BIM (Building Information Modeling) arrangement of multi-physics hydropower station equipment based on 3DE secondary development, and the method comprises the steps: writing a program by utilizing an EKL secondary development language of a 3DE platform to assist the soft collision checking design of the BIM arrangement of the multi-physics hydropower station equipment; various technologies such as three-dimensional design and development, multi-physics field simulation and collision detection are combined, and the problem of multi-physics field, multi-scale and multi-dimensional coupling arrangement is solved based on a BIM visualization means. The method relates to the two stages of hydropower station equipment multi-physics field coupling effect soft collision checking algorithm design, hydropower station equipment soft collision checking and arrangement optimization software implementation. The accuracy and efficiency of soft collision checking of the hydropower station equipment can be remarkably improved, the arrangement optimization design of the hydropower station equipment is more comprehensive, scientific, accurate, efficient and intelligent, and powerful support is provided for optimization of arrangement of electromechanical equipment of the hydropower station.

Description

Technical Field

[0001] This invention relates to the field of BIM model layout technology for hydropower station equipment, specifically a soft collision verification method for multiphysics hydropower station equipment BIM model layout based on 3DE secondary development. Background Technology

[0002] Hydropower stations, as a crucial component of clean energy, involve multiple professional fields such as hydraulic machinery, electrical engineering, automation, computer science, fluid mechanics, materials science, thermodynamics, civil engineering, and architecture. The high degree of interdisciplinary nature, complexity, and integration places extremely high demands on equipment layout during the design and construction of hydropower stations. Hydropower station equipment involves the interaction of multiple physical fields, primarily electromagnetic, fluid, temperature, and structural fields. Therefore, when conducting collision checks on the BIM model layout of hydropower station equipment, in addition to traditional hard collision checks (direct interference and intersection checks on the physical space of the equipment), soft collision checks (distance checks to ensure compliance with multi-physics field requirements during equipment operation and maintenance) should also be performed. Currently, there are numerous software products for hard collision checks based on BIM software, and hard collision interference checks for hydropower station equipment BIM models are mature. However, soft collision checks for equipment in multi-physics environments still heavily rely on manual experience and lack effective algorithmic theoretical support and software implementation methods. This is a weak link in the current field of hydropower station equipment BIM model layout technology. Therefore, there is an urgent need for a multiphysics soft collision check method for the layout of BIM models of hydropower station equipment, which can solve the problems of current soft collision checks of hydropower station equipment relying on manual experience, low design efficiency, and incomplete check considerations. This method can fill the gap in the field of soft collision checks of BIM models of hydropower station equipment while checking hard collisions, and achieve comprehensive, accurate, scientific, efficient and intelligent layout design of hydropower station equipment models.

[0003] 3DE platform, developed by Dassault Systèmes, is an industrial software platform for product design and manufacturing across multiple industries. It is a computer-aided 3D design software. To improve the automation of 3D design, 3DE platform offers three forms of secondary development: interactive knowledge engineering templates, automated scripts, and component application architecture. In actual 3D BIM model application development, users can choose the appropriate development method or a combination of methods according to project requirements, and utilize the resources and tools provided by the 3DE platform for efficient development. However, currently, the 3DE platform does not have the function of directly performing soft clash verification for the layout of hydropower station equipment BIM models. Applying the 3DE platform to soft clash verification for the layout of hydropower station equipment BIM models would largely solve the problems of current soft clash verification methods, such as reliance on manual experience, low design efficiency, and incomplete verification considerations. Summary of the Invention

[0004] The purpose of this invention is to provide a soft collision verification method for the layout of BIM models of hydropower station equipment based on 3DE secondary development. This method utilizes the 3DE platform and adopts EKL scripts as a secondary development method to realize soft collision verification of the layout of BIM models of hydropower station equipment. While ensuring that the soft collision verification of the layout of hydropower station equipment models meets the requirements of multiphysics coupling environment, it realizes intelligent layout design, automated soft collision verification, and refined design quality control of BIM models of hydropower station equipment.

[0005] To achieve the above-mentioned technical features, the objective of this invention is as follows: a soft collision verification method for the layout of BIM models of multiphysics hydropower station equipment based on 3DE secondary development, the verification method comprising the following steps: S1, Physical Field Analysis: Determine the physical field type of the equipment BIM model in the hydropower station that requires soft collision verification, and analyze the physical field factors that affect soft collision verification; S2, Algorithm Design: Based on the physical field factors of S1, a verification formula for the soft collision distance between devices under the action of multiple physics fields is determined. S3, Hard Collision Verification: The program was written using the EKL secondary development language based on the 3DE platform to perform hard collision verification on the equipment BIM model; S4, Model Attribute Extraction: The program is written using the EKL secondary development language based on the 3DE platform to automatically extract the BIM model parameters of the equipment layout and the model parameters required for multiphysics verification calculations. S5, soft collision check: Based on the model parameters extracted from S4 and the soft collision spacing verification formula between devices under the action of multiple physics fields in S2, a secondary development program was written based on the EKL language of the 3DE platform to automatically calculate the soft collision verification values ​​between devices, thereby realizing the platform automatic verification of soft collisions between hydropower station equipment under the action of multiple physics fields. S6, Dynamic Iterative Optimization: When the soft collision check in S5 fails to meet the design requirements, iterative optimization is performed based on the 3DE platform. S7, optimization solution acquisition.

[0006] Preferably, S1 specifically includes: The BIM model objects of the equipment that need soft collision verification in the hydropower station are identified, as well as the physical field types between the equipment. The physical field factors affecting the soft collision verification of the equipment are comprehensively analyzed, and the theoretical calculation formulas for equipment spacing under multi-physics are considered. The equipment spacing requirements are then modified in combination with the design, installation, operation and maintenance stages.

[0007] Preferably, S2 specifically includes: The required parameters for the multiphysics analysis model and the soft collision spacing verification formula between devices under each physics field are determined based on the multiphysics calculation requirements of the device.

[0008] Preferably, S3 specifically includes: The program is written using the EKL secondary development language based on the 3DE platform to automatically extract the distance between the equipment being checked and other equipment, thereby realizing hard collision detection of the equipment BIM model; at the same time, it automatically extracts other model distance parameters required for soft collision verification in steps S1 and S2. The equipment BIM model is a hydropower station equipment BIM model designed based on the 3DE platform.

[0009] Preferably, the equipment BIM model parameters extracted in S4 and the physical parameters required for multiphysics verification calculation include model size and material properties.

[0010] Preferably, S6 specifically includes: If the soft collision check value in step S5 does not meet the design requirements, then a program is written based on the EKL secondary development language of the 3DE platform, a certain step size is set, and automatic iterative optimization is performed until the soft collision check value between the device and other devices meets the design requirements.

[0011] Preferably, S7 specifically includes: A secondary development program was written based on the EKL language of the 3DE platform. It iterates through all equipment spacing soft collision checks, looping through steps S3-S6 until the soft collision check of the BIM model layout of all equipment meets the design requirements, and obtains the equipment layout design optimization scheme.

[0012] Preferably, the process of determining the BIM model objects of the hydropower station requiring soft collision verification, the physical field types between the equipment, comprehensively analyzing the physical field factors affecting the soft collision verification of the equipment, considering the theoretical calculation formulas for equipment spacing under multi-physics, and modifying the equipment spacing requirements in conjunction with the design, installation, operation, and maintenance stages, specifically includes: S1.1, Determine the verification object: Select the BIM model of the hydropower station equipment to be verified in the 3DE platform and clarify the physical field type between the equipment; S1.2, Definition of physical field parameters: Define the key parameters of each physical field according to the equipment operating environment; S1.3 Spacing Correction Rules: Combining the requirements of the design, installation, and operation and maintenance phases, including the requirements of standards, specifications, design documents, and empirical formulas in the design phase, the requirements of construction space, safety intervals, and transportation channels in the installation and construction phase, and the requirements of maintenance space, dismantling space, and emergency passages in the operation and maintenance phase, the minimum safe spacing correction coefficients for equipment under different physical fields are set.

[0013] Preferably, the BIM model of the hydropower station equipment in S1.1 includes: turbine, generator, transformer and pipeline; the physical field types include: electromagnetic field, temperature field, mechanical vibration field, fluid dynamic field, structural stress field and sound field; The key parameters in S1.2 include: electromagnetic field strength, thermal conductivity, fluid velocity, and mechanical stress threshold.

[0014] Preferably, the step of determining the required multiphysics analysis model parameters and the soft collision distance verification formula between devices under each physics field, based on the multiphysics calculation requirements of the device, specifically includes: S2.1, Multi-physics coupling modeling: Establish equipment spacing verification formulas under the coupling effects of various physical fields, including but not limited to electromagnetic field, temperature field, mechanical vibration field, fluid dynamics field, structural stress field, and sound field. Combining theoretical formulas, standards and specifications, empirical formulas, and design requirements, construct the minimum spacing under electromagnetic effects for each physical field. Minimum interval under the action of temperature field Minimum interval under mechanical vibration field Minimum Interval under the Action of Fluid Dynamics Field Minimum spacing under structural stress field Minimum interval under the action of sound field If there is strong coupling between multiple physics fields, numerical simulation is used for accurate verification. S2.2, Considering the correction of the verification formula for the entire life cycle: integrate the verification results of each physical field into a comprehensive spacing requirement, and superimpose the safety spacing margin considering the design, construction, operation and maintenance stages to obtain the minimum spacing of the equipment under the action of multiple physical fields, considering the entire life cycle stage; The minimum interval between the fields in a multiphysics system can be represented as a vector. Specifically: ; The correction factors for each stage of the entire life cycle can be represented as a vector. Specifically: ; In the formula: To take into account the minimum interval correction factor during the design phase, To take into account the minimum interval correction factor during the construction phase, To take into account the minimum interval correction factor during the operation phase, To take into account the minimum interval correction factor during the maintenance phase; Based on the minimum interval vector under each field and consider the correction factor vector at each stage of the entire life cycle The minimum interval calculation formula for this device is obtained through matrix outer product operation. ; .

[0015] Preferably, the specific process of automated model parameter extraction in S2 is as follows: BIM Model Analysis: Based on EKL scripts, a program is written to automatically extract the geometric parameters, material properties, and operating parameters of the equipment BIM model; Multiphysics data association: The extracted model parameters are dynamically associated with the physical field parameters defined in step 2.1 to generate a verification input dataset.

[0016] Preferably, the hard collision verification in S3 specifically includes: Using the collision detection module of the 3DE platform, geometric interference checks between devices are performed in batches via EKL scripts, and a list of hard collision conflicts is output.

[0017] Preferably, the soft collision verification in S5 specifically includes: S5.1, Distance Check: Write an EKL program to check the distance between the device and other systems and devices. The steps include: a. Create a resource table to record the minimum allowed distance between different systems; b. Create a PLM Rule by entering the written EKL code in the Quality Rules Capture module of the 3DE platform; c. Perform the check: Activate the device physical model node, select the node to be checked, and select the created PLMRule to execute the device spacing check program; d. Output the spacing check results; S5.2, Call the verification formula from step S2.2, and combine it with the device model parameters extracted in step S2 to calculate the soft collision distance between devices. Compare the actual device spacing output in the previous step with... If the actual spacing is less than It was determined to be a soft collision.

[0018] Preferably, the dynamic iterative optimization in S6 specifically includes: S5.1, Conflict Marking and Priority Sorting: Sort soft collisions by severity to generate an optimized task queue; S5.2 Automatic Adjustment and Feedback: Based on the EKL script, the adjustment step size is set, and the program automatically adjusts the device position or orientation, and executes steps S2 to S5 in a loop until all conflicts are eliminated or the preset iteration limit is reached. S5.3, Optimization Result Output: Generate the optimized BIM model layout scheme and output a verification report.

[0019] Preferably, step S7 further includes multidisciplinary collaborative verification: Cross-disciplinary data integration: By integrating mechanical, electrical, civil, and automation professional data through the BIM model of the 3DE platform, the visualization of multi-physics field verification results can be realized.

[0020] Collaborative correction: Based on the verification report, designers from various disciplines adjust the parameters. The program automatically updates the model and re-verifies it, repeating steps 2.1 to 2.4 to ensure overall coordination.

[0021] The present invention has the following beneficial effects: 1. This invention realizes a soft collision verification method for the layout of BIM models of hydropower station equipment based on 3DE secondary development. This method assists in the entire process of soft collision verification of BIM models of hydropower station equipment layout, and solves the problems of current soft collision verification of hydropower station equipment relying on manual experience, low design efficiency, and incomplete verification consideration. While checking for hard collisions, it fills the gap in the field of soft collision verification of BIM models of hydropower station equipment, and realizes a comprehensive, accurate, scientific, efficient and intelligent layout of hydropower station equipment models.

[0022] 2. This invention realizes multi-physics field coupling verification of hydropower station equipment. By integrating the interaction of multiple physical fields such as electromagnetic field, fluid field, temperature field and structural field, and combining the modification of equipment spacing requirements in each stage of design, installation, operation and maintenance, it realizes refined and full-cycle analysis of equipment soft collision verification. It solves the limitation of traditional methods that only rely on geometric collision (hard collision) and significantly improves the scientificity and comprehensiveness of verification.

[0023] 3. This invention realizes the visualization, automation and intelligence of soft collision verification of hydropower station equipment layout. Through the EKL secondary development script of the 3DE platform, it realizes the automatic extraction of equipment BIM model parameters, soft collision spacing calculation and iterative optimization of verification results, which greatly reduces the reliance on manual experience, improves verification efficiency, shortens the design cycle and reduces the risk of human error.

[0024] 4. This invention realizes dynamic iteration and optimization of design quality in the process of hydropower station equipment layout design. By programmatically setting the verification step size and automatic iteration logic, the equipment layout scheme is dynamically adjusted until it meets the multi-physics coupling design requirements. This solves the problems of low efficiency and insufficient coverage of traditional manual adjustment, ensuring the high quality and reliability of the equipment layout scheme and meeting the requirements of the complex multi-physics environment in which the current hydropower station equipment is located.

[0025] 5. This invention enhances the cross-disciplinary collaborative design capability of hydropower station equipment layout, realizes multi-physics data integration and visualization analysis based on BIM model, provides a unified verification platform for different disciplines such as electromechanical, civil engineering, and automation of hydropower stations, promotes multidisciplinary design collaboration, reduces information silos between disciplines, and optimizes the systematicness and coordination of the overall design scheme. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This invention provides a method for implementing soft collision verification of BIM model layout of multi-physics hydropower station equipment based on 3DE secondary development.

[0028] Figure 2 This is a schematic diagram illustrating the distance check process during soft collision verification of the BIM model layout of hydropower station equipment according to the present invention.

[0029] Figure 3 This is a schematic diagram illustrating the distance check results during soft collision verification of the BIM model layout of hydropower station equipment according to the present invention. Detailed Implementation

[0030] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] To address the shortcomings of existing technologies and the complexity of multiphysics coupling in hydropower station equipment model layout, this invention proposes a soft collision verification method for hydropower station equipment BIM model layout based on 3DE secondary development. This method presents a multiphysics soft collision verification algorithm for hydropower station equipment and its software implementation. This algorithm not only considers geometric collisions between equipment but also incorporates the influence of multiphysics, such as electromagnetic interference, heat conduction, and mechanical stress. It also considers adjustments to equipment spacing requirements at each stage of design, installation, operation, and maintenance, thereby achieving a more refined evaluation of equipment layout. Furthermore, this invention employs EKL (Enterprise Knowledge Language) scripting, a secondary development method on the 3DE platform, to implement soft collision verification for hydropower station equipment BIM model layout. This ensures that the soft collision verification of hydropower station equipment model layout meets the requirements of the multiphysics coupling environment while achieving intelligent layout design, automated soft collision verification, and refined design quality control for hydropower station equipment BIM models. By optimizing the multi-physics-field equipment soft collision verification algorithm and secondary development program, this invention can significantly improve the accuracy and efficiency of soft collision verification for hydropower station equipment, solve the problem of multi-physics-field, multi-scale, and multi-dimensional coupled layout, fill the gap in the field of soft collision inspection of hydropower station equipment BIM models, and make the optimized design of hydropower station equipment layout more comprehensive, scientific, accurate, efficient, and intelligent. It provides strong support for the optimization of hydropower station electromechanical equipment layout and has important guiding significance for the field of hydropower station equipment BIM model layout design.

[0033] This invention proposes a soft collision verification method for the layout of BIM models of multi-physics hydropower station equipment based on 3DE secondary development. This method uses the EKL secondary development language of the 3DE platform to write programs to assist in the design of soft collision verification for the layout of BIM models of multi-physics hydropower station equipment. It combines multiple technologies such as 3D design and development, multi-physics simulation and collision detection, and solves the problem of multi-physics, multi-scale and multi-dimensional coupled layout based on BIM visualization. The method involves two stages: design of soft collision verification algorithm for multi-physics coupling effect of hydropower station equipment and implementation of soft collision verification and layout optimization software for hydropower station equipment.

[0034] The design phase of the soft collision verification algorithm for the multiphysics coupling effect of hydropower station equipment provides the theoretical basis for the soft collision verification of the BIM model layout of multiphysics hydropower station equipment, and determines the theoretical support for the layout design of hydropower station equipment. This phase mainly includes modules such as multiphysics interaction coupling analysis, soft collision spacing verification formula considering multiphysics, and formula correction considering the equipment spacing requirements of each stage of design, installation, operation, and maintenance.

[0035] The software implementation stage for soft collision verification and layout optimization of hydropower station equipment is the software platform layer implementation of the multiphysics soft collision verification algorithm for hydropower station equipment, which determines the quality of the hydropower station equipment layout design. This stage uses EKL language, developed based on 3DE secondary development, to automatically extract data such as equipment spacing and BIM model parameters, providing data support for soft collision verification of the BIM model layout of hydropower station equipment under multiphysics coupling conditions. Simultaneously, it uses EKL language, developed based on 3DE secondary development, to implement iterative optimization of the BIM model layout soft collision verification of hydropower station equipment considering multiphysics coupling conditions.

[0036] To achieve the above objectives, the technical solution of this invention is as follows: A soft collision verification method for the layout of BIM models of multiphysics hydropower station equipment based on 3DE secondary development includes the following steps: S1: Physics Field Analysis. Determine the BIM model objects of the equipment in the hydropower station that require soft collision verification, the types of physics fields between the equipment, comprehensively analyze the physics field factors affecting the soft collision verification of equipment, consider the theoretical calculation formulas for equipment spacing under multiple physics fields, and modify the equipment spacing requirements in combination with the design, installation, operation and maintenance stages; S2: Algorithm Design. Determine the soft collision distance verification formula between devices under multiphysics. Based on the multiphysics calculation requirements of the devices, determine the multiphysics analysis model parameters to be extracted, as well as the soft collision distance verification formula for each physics. S3: Hard Collision Check. A program written in the EKL secondary development language based on the 3DE platform automatically extracts the distances between the equipment being checked and other equipment, realizing hard collision checks on the equipment BIM model. Simultaneously, it automatically extracts other model distance parameters required for soft collision checks in steps S1 and S2. The equipment BIM model is a hydropower station equipment BIM model designed based on the 3DE platform.

[0037] S4: Model Attribute Extraction. A program written using the EKL secondary development language on the 3DE platform automatically extracts BIM model parameters for equipment layout and physical parameters required for multiphysics verification calculations, such as model dimensions and material properties. S5: Soft Collision Verification. Based on the model parameters extracted in step S4 and the soft collision spacing verification formula between devices under multiphysics action in step S2, a secondary development program is written in EKL language on the 3DE platform to automatically calculate the soft collision verification values ​​between devices, realizing the platform's automatic verification of soft collisions between hydropower station equipment under multiphysics action; S6: Dynamic Iterative Optimization. If the soft collision check values ​​in step S5 do not meet the design requirements, a program is written based on the EKL secondary development language of the 3DE platform, with a certain step size, to automatically iterate and optimize until the soft collision check values ​​between this device and other devices meet the design requirements. S7: Obtaining the Optimization Scheme. A secondary development program is written based on the EKL language of the 3DE platform to iterate through the soft clash checks of all equipment spacings, repeating steps S3-S6 until the soft clash checks of the BIM model layout of all equipment meet the design requirements, thereby obtaining the optimized equipment layout design scheme.

[0038] Example 2: Figure 1 This paper illustrates the implementation process of a soft collision verification method for the layout of BIM models of multiphysics hydropower station equipment based on 3DE secondary development, as proposed in this invention. The method includes two stages: design of the soft collision verification algorithm for the multiphysics coupling effect of hydropower station equipment, and software implementation for soft collision verification and layout optimization of hydropower station equipment. The design phase of the soft collision verification algorithm for the multi-physics coupling effect of hydropower station equipment realizes the analysis of the multi-physics coupling effect of soft collision verification of the BIM model layout of hydropower station equipment, and provides the theoretical basis for the soft collision verification of equipment. It mainly includes steps such as multi-physics coupling effect analysis and parameter definition, and design of multi-physics soft collision verification algorithm.

[0039] Step 1.1: Analysis of multiphysics coupling and parameter definition.

[0040] In the design of equipment bays in hydropower stations, the interactions of various physical fields must be comprehensively considered to ensure the safe, stable operation and ease of maintenance of the equipment. These fields include, but are not limited to, electromagnetic fields, temperature fields, mechanical vibration fields, fluid dynamic fields, structural stress fields, and acoustic fields. Specific steps include: 1) Determine the verification object: Select the BIM model of the hydropower station equipment to be verified in the 3DE platform (such as turbines, generators, transformers, pipelines, etc.), and clarify the physical field types between the equipment (such as electromagnetic field, temperature field, mechanical vibration field, fluid dynamic field, structural stress field, sound field, etc.).

[0041] 2) Definition of physical field parameters: Based on the equipment operating environment, define the key parameters of each physical field (such as electromagnetic field strength, thermal conductivity, fluid velocity, mechanical stress threshold, etc.).

[0042] 3) Spacing Correction Rules: Based on the requirements of the design, installation, and operation and maintenance phases, including the requirements of standards, specifications, design documents, and empirical formulas in the design phase, the requirements of construction space, safety intervals, and transportation channels in the installation and construction phase, and the requirements of maintenance space, disassembly space, and emergency passages in the operation and maintenance phase, the minimum safe spacing correction coefficients for equipment under different physical fields are set.

[0043] Step 1.2: Design of a soft collision verification algorithm for equipment under multiphysics and considering the entire life cycle.

[0044] 1) Multiphysics coupling modeling: Establish equipment spacing verification formulas under the coupling effects of various physical fields, including but not limited to electromagnetic field, temperature field, mechanical vibration field, fluid dynamics field, structural stress field, and sound field. Combine theoretical formulas, standards and specifications, empirical formulas, design requirements, and other calculation basis to construct the minimum spacing under electromagnetic effects of each physical field. Minimum interval under the action of temperature field Minimum interval under mechanical vibration field Minimum Interval under the Action of Fluid Dynamics Field Minimum spacing under structural stress field Minimum interval under the action of sound field If there is strong coupling between multiple physical fields (such as electromagnetic-thermal combined effect), then numerical simulation (such as finite element analysis) is required for accurate verification.

[0045] Obviously, those skilled in the art can make supplementary modifications to the multi-physical field effects on the hydropower station equipment in this invention without departing from the spirit and scope of this invention, and this invention also intends to include these modifications and variations.

[0046] 2) Considering the correction of the verification formula for the whole life cycle: integrate the verification results of each physical field into a comprehensive spacing requirement, and superimpose the safety spacing margins of the design, construction, operation and maintenance stages to obtain the minimum spacing of the equipment under the action of multiple physical fields, considering the whole life cycle stages.

[0047] The minimum interval between the fields in a multiphysics system can be represented as a vector. Specifically: ; The correction factors for each stage of the entire life cycle can be represented as a vector. Specifically: ; In the formula: To take into account the minimum interval correction factor during the design phase, To take into account the minimum interval correction factor during the construction phase, To take into account the minimum interval correction factor during the operation phase, To take into account the minimum interval correction factor during the maintenance phase; Based on the minimum interval vector under each field and consider the correction factor vector at each stage of the entire life cycle The minimum interval calculation formula for this device is obtained through matrix outer product operation. ; ; In the software implementation phase of the soft collision verification and layout optimization of hydropower station equipment, this phase is based on the EKL secondary development language of the 3DE platform to write programs to implement model parameter extraction, verification calculation and iterative optimization. The main steps include automated extraction of model parameters, hard collision verification, soft collision verification calculation, dynamic iterative optimization, and multidisciplinary collaborative verification.

[0048] Step 2.1: Automated extraction of model parameters.

[0049] 1) BIM Model Analysis: Based on EKL scripts, the program automatically extracts the geometric parameters (such as dimensions, location, spacing, etc.), material properties (such as thermal conductivity, electromagnetic shielding performance, etc.) and operating parameters (such as current, flow rate) of the equipment BIM model.

[0050] 2) Multiphysics data association: The extracted model parameters are dynamically associated with the physical parameters defined in step 1.1 to generate a verification input dataset.

[0051] Step 2.2: Hard collision check.

[0052] Using the collision detection module of the 3DE platform, geometric interference checks between devices are performed in batches via EKL scripts, and a list of hard collision conflicts is output.

[0053] Step 2.3: Soft collision verification calculation.

[0054] 1) Distance Check. Write an EKL program to check the distance between the device and other systems and devices. The steps include: a. Create a resource table to record the minimum allowed distance between different systems; b. Create a PLM Rule by entering the written EKL code in the Quality Rules Capture module of the 3DE platform; c. Perform the check. Activate the equipment physical model node, select the node to be checked, and select the created PLMRule to execute the equipment spacing check program, such as... Figure 2 As shown; d. Output the spacing check results, such as Figure 3 As shown.

[0055] 2) Using the verification formula from step 1.2 and the equipment model parameters extracted in step 2.1, calculate the soft collision distance between the equipment. Compare the actual device spacing output in the previous step with... If the actual spacing is less than It was determined to be a soft collision.

[0056] Step 2.4: Dynamic iterative optimization.

[0057] 1) Conflict marking and priority sorting: Soft collision conflicts are sorted according to severity (such as security risk level) to generate an optimized task queue.

[0058] 2) Automatic Adjustment and Feedback: Based on the EKL script, the adjustment step size is set (e.g., 0.1m for each device movement), and the program automatically adjusts the device position or orientation. Steps 2.1 to 2.3 are executed repeatedly until all conflicts are eliminated or the preset iteration limit is reached.

[0059] 3) Optimization result output: Generate the optimized BIM model layout scheme and output the verification report (including conflict resolution records and final parameters).

[0060] Step 2.5: Multidisciplinary collaborative verification.

[0061] 1) Cross-disciplinary data integration: By integrating BIM model data from mechanical and electrical engineering, civil engineering, automation and other disciplines through the 3DE platform, the visualization of multi-physics field verification results can be realized.

[0062] 2) Collaborative correction: Based on the verification report, designers from various disciplines adjust the parameters. The program automatically updates the model and re-verifies it, repeating steps 2.1 to 2.4 to ensure overall coordination.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soft collision verification method for the layout of BIM models of multiphysics hydropower station equipment based on 3DE secondary development, characterized in that, The verification method includes the following steps: S1, Physical Field Analysis: Determine the physical field type of the equipment BIM model in the hydropower station that requires soft collision verification, and analyze the physical field factors that affect soft collision verification; S2, Algorithm Design: Based on the physical field factors of S1, a verification formula for the soft collision distance between devices under the action of multiple physics fields is determined. S3, Hard Collision Verification: The program was written using the EKL secondary development language based on the 3DE platform to perform hard collision verification on the equipment BIM model; S4, Model Attribute Extraction: The program is written using the EKL secondary development language based on the 3DE platform to automatically extract the BIM model parameters of the equipment layout and the model parameters required for multiphysics verification calculations. S5, soft collision check: Based on the model parameters extracted from S4 and the soft collision spacing verification formula between devices under the action of multiple physics fields in S2, a secondary development program was written based on the EKL language of the 3DE platform to automatically calculate the soft collision verification values ​​between devices, thereby realizing the platform automatic verification of soft collisions between hydropower station equipment under the action of multiple physics fields. S6, Dynamic Iterative Optimization: When the soft collision check in S5 fails to meet the design requirements, iterative optimization is performed based on the 3DE platform. S7, optimization solution acquisition.

2. The soft collision verification method for the layout of multi-physics hydropower station equipment BIM model based on 3DE secondary development according to claim 1, characterized in that, S1 specifically includes: The BIM model objects of the equipment that need soft collision verification in the hydropower station are identified, as well as the physical field types between the equipment. The physical field factors affecting the soft collision verification of the equipment are comprehensively analyzed, and the theoretical calculation formulas for equipment spacing under multi-physics are considered. The equipment spacing requirements are then modified in combination with the design, installation, operation and maintenance stages.

3. The soft collision verification method for the layout of multi-physics hydropower station equipment BIM model based on 3DE secondary development according to claim 1, characterized in that, S2 specifically includes: The required parameters for the multiphysics analysis model and the soft collision spacing verification formula between devices under each physics field are determined based on the multiphysics calculation requirements of the device.

4. The soft collision verification method for the layout of multi-physics hydropower station equipment BIM model based on 3DE secondary development according to claim 1, characterized in that, Specifically, S3 includes: The program is written using the EKL secondary development language based on the 3DE platform to automatically extract the distance between the equipment being checked and other equipment, thereby realizing hard collision detection of the equipment BIM model; at the same time, it automatically extracts other model distance parameters required for soft collision verification in steps S1 and S2. The equipment BIM model is a hydropower station equipment BIM model designed based on the 3DE platform.

5. The soft collision verification method for the layout of multi-physics hydropower station equipment BIM model based on 3DE secondary development according to claim 1, characterized in that, The equipment BIM model parameters extracted in S4 and the physical parameters required for multiphysics verification calculations include model dimensions and material properties.

6. The soft collision verification method for the layout of multi-physics hydropower station equipment BIM model based on 3DE secondary development according to claim 1, characterized in that, Specifically, S6 includes: If the soft collision check value in step S5 does not meet the design requirements, then a program is written based on the EKL secondary development language of the 3DE platform, a certain step size is set, and automatic iterative optimization is performed until the soft collision check value between the device and other devices meets the design requirements.

7. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 1, characterized in that, Specifically, S7 includes: A secondary development program was written based on the EKL language of the 3DE platform. It iterates through all equipment spacing soft collision checks, looping through steps S3-S6 until the soft collision check of the BIM model layout of all equipment meets the design requirements, and obtains the equipment layout design optimization scheme.

8. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 2, characterized in that, The process involves determining the BIM model objects of the hydropower station requiring soft collision verification, the physical field types between the equipment, comprehensively analyzing the physical field factors affecting equipment soft collision verification, considering the theoretical calculation formulas for equipment spacing under multi-physics, and revising the equipment spacing requirements in conjunction with the design, installation, operation, and maintenance stages. Specifically, this includes: S1.1, Determine the verification object: Select the BIM model of the hydropower station equipment to be verified in the 3DE platform and clarify the physical field type between the equipment; S1.2, Definition of physical field parameters: Define the key parameters of each physical field according to the equipment operating environment; S1.3 Spacing Correction Rules: Combining the requirements of the design, installation, and operation and maintenance phases, including the requirements of standards, specifications, design documents, and empirical formulas in the design phase, the requirements of construction space, safety intervals, and transportation channels in the installation and construction phase, and the requirements of maintenance space, dismantling space, and emergency passages in the operation and maintenance phase, the minimum safe spacing correction coefficients for equipment under different physical fields are set.

9. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 8, characterized in that, The BIM model of hydropower station equipment in S1.1 includes: turbines, generators, transformers, and pipelines; the physical field types include: electromagnetic field, temperature field, mechanical vibration field, fluid dynamics field, structural stress field, and sound field. The key parameters in S1.2 include: electromagnetic field strength, thermal conductivity, fluid velocity, and mechanical stress threshold.

10. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 3, is characterized in that, The process of determining the required multiphysics analysis model parameters and the soft collision distance verification formula between devices under each physics field, based on the multiphysics calculation requirements of the device, specifically includes: S2.1, Multi-physics coupling modeling: Establish equipment spacing verification formulas under the coupling effects of various physical fields, including but not limited to electromagnetic field, temperature field, mechanical vibration field, fluid dynamics field, structural stress field, and sound field. Combining theoretical formulas, standards and specifications, empirical formulas, and design requirements, construct the minimum spacing under electromagnetic effects for each physical field. Minimum interval under the action of temperature field Minimum interval under mechanical vibration field Minimum Interval under the Action of Fluid Dynamics Field Minimum spacing under structural stress field Minimum interval under the action of sound field If there is strong coupling between multiple physics fields, numerical simulation is used for accurate verification. S2.2, Considering the correction of the verification formula for the entire life cycle: integrate the verification results of each physical field into a comprehensive spacing requirement, and superimpose the safety spacing margin considering the design, construction, operation and maintenance stages to obtain the minimum spacing of the equipment under the action of multiple physical fields, considering the entire life cycle stage; The minimum interval between the fields in a multiphysics system can be represented as a vector. Specifically: ； The correction factors for each stage of the entire life cycle can be represented as a vector. Specifically: ； In the formula: To take into account the minimum interval correction factor during the design phase, To take into account the minimum interval correction factor during the construction phase, To take into account the minimum interval correction factor during the operation phase, To take into account the minimum interval correction factor during the maintenance phase; Based on the minimum interval vector under each field action and consider the correction factor vector at each stage of the entire life cycle The minimum interval calculation formula for this device is obtained through matrix outer product operation. ; 。 11. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 10, characterized in that, The specific process for automated extraction of model parameters in S2 is as follows: BIM Model Analysis: Based on EKL scripts, a program is written to automatically extract the geometric parameters, material properties, and operating parameters of the equipment BIM model; Multiphysics data association: The extracted model parameters are dynamically associated with the physical field parameters defined in step 2.1 to generate a verification input dataset.

12. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 11, characterized in that, The hard collision verification in S3 specifically includes: Using the collision detection module of the 3DE platform, geometric interference checks between devices are performed in batches via EKL scripts, and a list of hard collision conflicts is output.

13. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 11, characterized in that, The soft collision verification in S5 specifically includes: S5.1, Distance Check: Write an EKL program to check the distance between the device and other systems and devices. The steps include: a. Create a resource table to record the minimum allowed distance between different systems; b. Create a PLM Rule by entering the written EKL code in the Quality Rules Capture module of the 3DE platform; c. Perform the check: Activate the device physical model node, select the node to be checked, and select the created PLM Rule to execute the device spacing check program; d. Output the spacing check results; S5.2, Call the verification formula from step S2.2, and combine it with the device model parameters extracted in step S2 to calculate the soft collision distance between devices. Compare the actual device spacing output in the previous step with... If the actual spacing is less than It was determined to be a soft collision.

14. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 11, characterized in that, The dynamic iterative optimization in S6 specifically includes: S5.1, Conflict Marking and Priority Sorting: Sort soft collisions by severity to generate an optimized task queue; S5.2 Automatic Adjustment and Feedback: Based on the EKL script, the adjustment step size is set, and the program automatically adjusts the device position or orientation, and executes steps S2 to S5 in a loop until all conflicts are eliminated or the preset iteration limit is reached. S5.3, Optimization Result Output: Generate the optimized BIM model layout scheme and output a verification report.

15. The soft collision verification method for the layout of BIM model of multiphysics hydropower station equipment based on 3DE secondary development according to claim 11, characterized in that, The S7 also includes multidisciplinary collaborative verification: Cross-disciplinary data integration: By integrating mechanical, electrical, civil, and automation professional data through the BIM model of the 3DE platform, the visualization of multi-physics field verification results can be realized. Collaborative correction: Based on the verification report, designers from various disciplines adjust the parameters. The program automatically updates the model and re-verifies it, repeating steps 2.1 to 2.4 to ensure overall coordination.

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