Method for rapidly realizing parameterized design of steel structure based on NX software

Abstract

The invention discloses a method for rapidly achieving steel structure parameterization design based on NX software, and relates to the technical field of structure parameterization design, and the method comprises the following steps: S1, building a framework three-dimensional design standard; s2, constructing a parameterized model library; s3, establishing a column grid parameterized model; s4, building a steel structure intelligent model; and S5, verifying and optimizing the model. According to the method, parameterized design of the steel structure can be quickly realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural parameterization design, and in particular to a method for quickly realizing parameterization design of steel structure based on NX software. BACKGROUND

[0002] The current manufacturing industry is facing a competitive pattern of "multi-variety, small batch and short cycle", and the customization demand of users for boiler steel structure has significantly increased, and the design complexity has increased exponentially. Although three-dimensional design technology has been introduced into the boiler field since the early 21st century, the industry still operates in a mixed mode dominated by two-dimensional design and assisted by three-dimensional design, which has formed the following technical problems: 1. Low modeling efficiency: Traditional steel structure design relies on manual modeling one by one, with a large amount of repetitive work, especially for complex components such as main steel, platform, escalator, etc., which takes several weeks. Repetitive modeling results in more than 60% of engineers' working time being consumed in data transcription and model verification, which seriously restricts the release of design innovation capability.

[0003] 2. Low parameterization degree: Existing parameterization design is mostly limited to parameter design of single component design, and lacks three-dimensional component module model and scheme model library for design and parameterization, resulting in the need to re-model single components when adjusting the overall structure of the steel structure, which reduces design efficiency.

[0004] 3. Insufficient standardization: Existing three-dimensional design lacks specialized parameterization modules for boiler steel structure, and non-standard component design relies on engineers' experience, which is difficult to meet the stringent requirements of new clean energy units for lightweight and modularization.

[0005] Siemens NX software, as a core tool in the field of high-end mechanical design, has outstanding performance in complex surface modeling and motion simulation, but still has significant shortcomings in specialized steel structure design scenarios. The current design of large steel structures such as boilers and workshops generally faces the problem of missing parameterization modules, such as high-frequency repetitive components such as platforms, escalators, brackets, and railings, which lack standardized parameter libraries.

[0006] The traditional method has low modeling process efficiency and cannot meet the rapid design requirements of boiler steel structure. SUMMARY

[0007] The present application provides a method for quickly realizing parameterization design of steel structure based on NX software, which quickly realizes parameterization design of steel structure by establishing three-dimensional design standards, building parameterization model library, establishing column network parameterization model, building intelligent model of steel structure, and verifying and optimizing the model.

[0008] The purpose of the application is achieved by the following technical scheme: a method for quickly realizing parameterized design of steel structure based on NX software, the method comprises the following steps: S1, establish a three-dimensional design standard for the framework: based on the boiler steel structure design specification, the specific size parameters of the high-frequency used components such as main steel profiles, platforms, escalators, brackets and railings are decomposed, the key geometric parameters (such as cross-sectional size, connection mode, positioning reference) and attribute information (material specification, load level, process requirement) are extracted, and the standardized component data is formed. The model building process of the three-dimensional design of the framework is standardized, and is sorted into the enterprise framework three-dimensional design standard.

[0009] S2, parameterized model library construction: the steel structure parameterized module model library mainly uses the part family (PartFamily) function and secondary development module of NX software to convert the steel structure standardized components into adjustable parameterized module models. a) Establish and manage the parameterized module models of the steel structure standardized components, each component supports dynamic parameter driving (such as length, angle, connection point spacing), and embeds attribute labels (such as component number, version number, design specification), realizes the traceability and batch management of design data. b) Based on the enterprise framework three-dimensional design standard, the key geometric parameters and attribute information of the components are preset, integrated with the three-dimensional modeling software through data interface or rule library, and the automatic identification and calling of parameters and attributes are realized.

[0010] S3, column grid parameterized model establishment: create a boiler steel structure column grid parameterized model through the sketch module of NX software, define the key positioning nodes of the main steel structure (such as column center point, layer height reference surface), and associate global parameters (span, layer height, inclination angle). The column grid parameterized model supports dynamic adjustment, and parameter change can trigger automatic update of associated components.

[0011] S4, steel structure intelligent model building: based on the WAVE geometric correlator of NX software, bind the component parameterized module models such as main steel profiles and platforms with the positioning nodes of the column grid parameterized model, and build a "one drawing driving global" steel structure intelligent model. Model intelligence embodies: when adjusting the column grid span, the main steel length, width and height parameters are updated synchronously and adaptively, the spatial adaptability (such as connection mode compatibility, positioning reference alignment) is automatically checked, the scheme model is built, and manual intervention is reduced.

[0012] S5, model verification and optimization: use the "gap analysis" function of NX software to detect the interference between components, output the interference report and highlight the conflict area. Designers can fine-tune the steel structure intelligent model by checking the model label and attribute, combined with engineering experience, and finally output the boiler steel structure model meeting the requirements. The optimized model is automatically updated to the steel structure intelligent model library, forming a "design-verification-iteration" closed loop, and improving the completeness and reusability of the parameterized model library.

[0013] The beneficial effects of this invention are: 1. Improved efficiency: The modeling cycle is shortened from 5-7 days in the traditional method to 2-3 days, which is suitable for rapid solution iteration.

[0014] 2. Accuracy Guarantee: The use of parametric model libraries reduces manual intervention and greatly reduces the error rate of model dimensions.

[0015] 3. Enhanced flexibility: By adjusting global parameters (such as the length, width, and height of the boiler steel structure), variant models adapted to different engineering needs can be quickly generated.

[0016] 4. Economic benefits: Reduces design costs by approximately 60%, reduces material waste caused by rework due to design errors, and increases product standardization rate with a model library reuse rate of up to 80%. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the process of the present invention; Fig. 2 Flowchart for building a parametric model library. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] In one embodiment of this application: like Figs. 1-2 As shown, a method for rapid parametric design of steel structures based on NX software is described. This method includes the following steps: S1. Establishment of 3D Frame Design Standards: Based on boiler steel structure design specifications and enterprise design standards, the specific dimensional parameters of frequently used components such as main steel profiles (H-beams, I-beams, etc.), platforms (gratings, anti-slip plates), escalators (incline ladders, straight ladders), brackets, and railings (columns, crossbars) are decomposed. Key geometric parameters (such as cross-sectional dimensions, connection methods, and positioning references) and attribute information (material specifications, load ratings, and process requirements) are extracted to form standardized component data. The model building process for 3D frame design is standardized, clarifying the rules for setting the model coordinate system, assembly constraint types, and model accuracy levels. This information is then compiled into enterprise 3D frame design standards to facilitate the subsequent use of parametric model libraries.

[0021] S2, Construction of the parametric model library: a) In the NX software environment, using the Part Family and Expression functions, the model parameters identified in the previous step are divided into three categories: basic parameters (such as length, angle, and connection point spacing), assembly-related parameters (assembly feature points and lines, etc.), and attribute label parameters (such as component number, version number, and design specifications). This transforms standardized steel structure components into an adjustable parametric modular model library. The steps are as follows: Fig. 2 As shown: Using the expression function of NX software, define its driving parameters (dimensions, attribute labels, etc.), create a parameterized data table through the part family command, input standard part library data of different specifications according to relevant standards, and save the creation KRX call parameter information to complete the establishment of the part family reuse library.

[0022] b) Key geometric parameters and attribute information from the enterprise's 3D structural design standards are entered into the system's rule base or parameter database and integrated with 3D modeling tools via a software interface to ensure real-time access during the design process. Users draw or select positioning reference points or connection nodes for main components (such as escalators or railings) in the 3D model sketch, triggering associated point recognition events through click operations. The system extracts the spatial coordinates of the associated points and the geometric parameters of the main components (such as cross-sectional dimensions and connection type) as the basic input for subsequent calculations. Based on the spatial spacing of the associated points, the spatial requirements of the connection method, and the strength requirements corresponding to the load level, the system calls preset calculation rules to automatically match the bracket's length and model. Simultaneously, based on the calculation results, a bracket geometric model is generated at the corresponding associated point location in the 3D model, and material specifications, process requirements, and other attribute information are simultaneously bound to the model's metadata to ensure complete design information.

[0023] S3. Establishing a Parametric Column Grid Model: A 3D parametric column grid model is constructed in the NX software sketch environment. The positioning nodes of the main steel structure (column center points, story height reference planes) are defined, and global parameters (span, story height, etc.) are associated. The orthogonality and symmetry between column grid nodes are ensured through the NX software's "Geometric Constraints" function. For example, the spacing between adjacent columns is constrained to equal the span parameter value. Automatic updates of the column grid are achieved by adjusting the column grid parameters.

[0024] S4. Intelligent Steel Structure Model Building: Based on the WAVE geometric associator in NX software, main steel profiles, platforms, and other components are bound to column grid nodes. Main steel columns: The bottom reference point of the column coincides with the column grid node, and the height parameter is associated with the floor height reference plane. The main steel is assigned profiles using the pipeline command in NX software. Through the parametric model library established in step S2, platforms, ladders, brackets, etc. of the corresponding specifications are selected according to the drawing requirements. When global parameters (such as the total height of the building) are modified in NX software, the system automatically triggers the parameter recalculation and model reconstruction of the associated components. The user selects associated points (such as the start and end points of the positioning reference, connection nodes) in the 3D model sketch. The system triggers the calculation logic through click events, and automatically calculates the length and model of the bracket by combining geometric parameters (such as the spacing of the positioning reference, the space occupation of the connection method) and attribute information (such as the strength requirements corresponding to the load level, the cross-sectional size limit). According to the calculated bracket length and model, the system automatically generates a bracket geometric model that conforms to the enterprise standard at the position of the corresponding associated point in the 3D model, and simultaneously applies attribute information such as material specifications and process requirements to the model metadata. Finally, by matching the preset rules of parameters and attributes, the system automatically verifies the spatial compatibility (such as connection method compatibility and positioning benchmark alignment) of the bracket model with the main components (such as escalators and railings) when generating the bracket model, without the need to manually add assembly constraints, and directly completes the model association.

[0025] S5. Model Validation and Optimization: Automated model validation: The "Gap Analysis" function of NX software is used to detect interference between components, such as hard interference (overlapping entities), soft interference (insufficient safety distance), and contact interference. Through multi-level detection (global coarse inspection + local fine inspection), the detection efficiency is improved, and finally, an interference report is output with the conflict area highlighted.

[0026] Manual review and iterative optimization: Designers fine-tune the model based on highlighted conflict areas, model annotations, and attributes, combined with engineering experience. Finally, the optimized model is synchronized to the model library via the Teamcenter interface, and intelligent deduplication and version management are achieved using feature hashing encoding. The optimized model is automatically updated to the system rule base or parameter database, forming a closed loop of "design-verification-iteration," improving the completeness and reusability of the model library.

[0027] The above description is merely an embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A method for rapidly implementing parametric design of steel structures based on NX software, characterized in that: Includes the following steps: S1. Establishment of 3D design standards for the framework: Standardized component data is generated for the components; S2. Parametric model library construction: Transform standardized component data into an adjustable parametric module model library; S3. Establishment of Column Grid Parametric Model: Create a parameterized model of the boiler steel structure column grid, define the key positioning nodes of the main steel structure, and associate them with global parameters; S4. Construction of intelligent steel structure model: Bind the adjustable parametric module model to the key positioning nodes of the column grid parametric model; S5. Model Validation and Optimization: Detect interference between components, output interference reports and highlight conflict areas.

2. The method for rapid parametric design of steel structures based on NX software according to claim 1, characterized in that: In step S1, the component is decomposed into specific dimensional parameters, and key geometric parameters and attribute information are extracted to form standardized component data.

3. The method for rapid parametric design of steel structures based on NX software according to claim 1, characterized in that: In step S2, a parameterized module model for classifying and managing standardized component data is established. Each component supports dynamic parameter driving and embeds attribute tags.

4. The method for rapid parametric design of steel structures based on NX software according to claim 3, characterized in that: In the NX software environment, the model parameters are divided into three categories using the component family and expression functions: basic parameter class, assembly association class, and attribute label class.

5. The method for rapid parametric design of steel structures based on NX software according to claim 4, characterized in that: Using the expression function of NX software, the driving parameters of the model are defined. Through the part family command, a parametric data table is created. Standard part library data of different specifications are input according to relevant standards, and the KRX creation call parameter information is saved to complete the establishment of the part family reuse library.

6. The method for rapid parametric design of steel structures based on NX software according to claim 5, characterized in that: Key geometric parameters and attribute information in the 3D design standard of the framework are entered into the system rule base or parameter database and integrated with 3D modeling tools through software interface.

7. The method for rapid parametric design of steel structures based on NX software according to claim 1, characterized in that: In step S5, the gap analysis function of NX software is used to detect interference between components.

8. The method for rapid parametric design of steel structures based on NX software according to claim 7, characterized in that: Based on the highlighted conflict areas, model annotations and attributes, and combined with engineering experience, the model is fine-tuned, the optimized model is synchronized to the model library, and feature hashing encoding is used to achieve intelligent deduplication and version management. The optimized model is automatically updated to the system rule base or parameter database.

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