CN117910119B - PLM-based building curtain wall three-dimensional design modeling method and system - Google Patents
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Abstract
The invention provides a three-dimensional design modeling method and system of a building curtain wall based on PLM, which utilizes the product research and development thinking of manufacturing industry to realize the design of the building industry curtain wall, introduces the concepts of parts, products and the like, assembles the parts to form a complete curtain wall product, and realizes the function of improving the quality and the efficiency of a design flow through the standardization of the design product and the repeated utilization of a model. According to the invention, curtain wall types meeting different design requirements are subdivided, so that design standardization and fine model recycling are realized; through the orderly management of the life cycle of the curtain wall product, the design iteration change and the accurate control of each link from the product design to the production and the manufacture to the construction and the construction of the curtain wall are facilitated. The invention realizes that the design and the construction are completed in the same model, and the efficiency and the accuracy of curtain wall design and modeling are greatly improved by directly butting, processing and installing the model, thereby providing a new digital technical solution for curtain wall engineering in the building industry.
Description
Technical Field
The invention belongs to the technical field of building curtain wall design, and particularly relates to a building curtain wall three-dimensional design modeling method and system based on PLM.
Background
Along with the wide popularization and application of computer technology, the informatization level of the building industry is continuously improved, and as an important subdivision field in the building industry, the curtain wall industry also follows the development trend, and various digital means and technologies are utilized to replace the traditional manual operation so as to solve the problems of the traditional workflow, low design efficiency and the like. In recent years, BIM technology is widely applied in the building industry, and can help to improve the design efficiency, construction quality and operation maintenance level of a building to a certain extent, but also has the problems of difficult standardization of data, inconvenient collaborative design, lack of version control, data splitting of each link and the like.
PLM (Product LIFECYCLE MANAGEMENT) is a technology for integrated management of a Product throughout its life cycle. The method covers various links of product design, development, manufacture, installation and the like, organically combines a plurality of business systems to form closed-loop management by establishing a virtual product data management platform, and is widely applied to manufacturing industry. Although curtain walls are a decorative and protective component system for building facades, a series of production processes still fall into the manufacturing category. Therefore, the PLM technology can be utilized to correlate the flow information, design data, manufacturing process, resources and other information of the whole life cycle of the curtain wall industry, and effective communication and interaction among a plurality of professions are realized. Therefore, the product research and development flow can be optimized, the design quality and efficiency can be improved, the whole flow can be accurately controlled, the design and construction quality can be effectively controlled, and the product competitiveness can be improved.
Disclosure of Invention
The invention aims to solve the technical problems that: a PLM-based building curtain wall three-dimensional design modeling method and system are provided, and are used for improving quality and efficiency of a design flow.
The technical scheme adopted by the invention for solving the technical problems is as follows: a building curtain wall three-dimensional design modeling method based on PLM comprises the following steps:
s1: creating a curtain wall part library, wherein parts in the curtain wall part library are used for system call, modification, replacement and statistics;
S2: building a skeleton model according to the curtain wall modeling; establishing a positioning system by taking the skeleton model as a reference;
S3: designing a curtain wall system and establishing a corresponding basic blueprint; selecting parts in a parts library according to parameters, assembling the parts according to a positioning system of a basic blueprint to form a complete blueprint and instantiating the complete blueprint as a product example;
s4: managing product states and design processes through version updating and lifecycle;
s5: assembling the skeleton model and the corresponding product examples to the right position of the curtain wall system through a positioning system to form a complete curtain wall three-dimensional model;
S6: and generating a bill of materials according to the complete curtain wall three-dimensional model for production and manufacture.
According to the above scheme, in the step S1, the parts include standard parts and adaptive parts; the standard part has standardized model, model and size; the geometric form, the generation logic and the topological relation of the self-adaptive part are the same in large classification, and parameters are automatically adjusted according to actual conditions; the self-adaptive parts are stored in a parts library as blueprints; the blueprint comprises a part positioning system and a refined three-dimensional model containing various information of the part.
According to the above scheme, in the step S2, the skeleton model is a curtain wall foundation separation curved surface obtained by performing grid division on a curved surface three-dimensional model of the curtain wall model, and the skeleton model includes basic elements in space for reflecting the curved surface model, grid division form and spatial relationship of each component of the curtain wall.
Further, in the step S2, the positioning system is a spatial positioning element further abstracted by the skeleton model, and the position coordinates, the rotation angles and the normal directions of the components in the space are determined based on a unified reference system; each component corresponds to a positioning element one by one.
According to the above scheme, in the step S3, the basic blueprint includes a product reference positioning system and a part positioning system; the product benchmark positioning system is an anchor point of a blueprint instantiation generation instance and is used for positioning a product instance; the part positioning system uses the product reference positioning system as a reference system and is used for positioning parts forming the product and reflecting the spatial relationship of the parts.
Further, in the step S3, the complete blueprint includes a basic blueprint and parts for forming a product; if the standard part is the standard part, adding an example of the standard part; if the part is an adaptive part, a blueprint of the adaptive part is added.
According to the above scheme, in the step S4, the old blueprint is reserved during version updating, and the new blueprint is adopted to regenerate the instance; the life cycle of the product includes stages that are working, approved, released and abandoned.
According to the above scheme, in the step S5, the specific steps are as follows: the positioning system of the same type of skeleton in the binding skeleton model is connected with the positioning system of the corresponding type of product instance, so that the instance model is placed at the correct position in the whole project space.
A computer memory having stored therein a computer program executable by a computer processor for performing a PLM-based building curtain wall three-dimensional design modeling method.
A PLM-based building curtain wall three-dimensional design modeling system comprising a processor and a memory, the memory having stored therein computer instructions for executing the computer instructions stored in the memory, the system implementing the steps of a PLM-based building curtain wall three-dimensional design modeling method when the computer instructions are executed by the processor.
The beneficial effects of the invention are as follows:
1. according to the PLM-based three-dimensional design modeling method and system for the building curtain wall, disclosed by the invention, the design of the building curtain wall is realized by utilizing the product research and development thought of the manufacturing industry, the concepts of parts, products and the like are introduced, the assembled parts form a complete curtain wall product, and the functions of improving the quality and the efficiency of a design flow are realized by the standardization of the design product and the repeated utilization of a model.
2. According to the invention, curtain wall types meeting different design requirements are subdivided, so that on one hand, design standardization is realized, design efficiency is greatly improved, on the other hand, a fine model can be reused, and modeling time is reduced.
3. The invention not only facilitates the iterative change of the design, but also is beneficial to precisely controlling each link from the design of the product to the production and the manufacture to the construction and the construction of the curtain wall through the ordered management of the life cycle of the curtain wall product.
4. The invention realizes that the design and the construction are completed in the same model, realizes one-die-to-one and no-picture construction to a certain extent, can be directly connected, processed and installed through the model, greatly improves the efficiency and the accuracy of curtain wall design and modeling, and provides a new digital technical solution for curtain wall engineering in the building industry.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
FIG. 2 is a structural tree diagram of a parts library according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a curtain wall hold down fitting according to an embodiment of the present invention.
FIG. 4 is a comparative diagram of a skeletal model of a curtain wall in accordance with an embodiment of the present invention.
FIG. 5 is a schematic diagram of a positioning system according to an embodiment of the invention.
FIG. 6 is a comparison of product models of a multi-class curtain wall system according to an embodiment of the present invention.
FIG. 7 is a schematic diagram of a revision system of an embodiment of the present invention.
FIG. 8 is a schematic diagram of a lifecycle management system according to an embodiment of the present invention.
FIG. 9 is a complete model diagram of a curtain wall according to an embodiment of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
Example 1
Referring to fig. 1, an embodiment of the present invention provides a three-dimensional design modeling method for a building curtain wall based on PLM, including the following steps:
s1: and an enterprise curtain wall part library is created in the PLM platform, so that basic support is provided for subsequent curtain wall design and product development.
The enterprise curtain wall part library comprises the following two parts: the first type is standard parts, namely, all aspects of models, sizes and the like of the parts are completely standardized, common parts which can be produced by professional factories, or fixed parts which can be accurately counted according to various parameters of a certain project and cannot be greatly changed in the design process are mainly stored in a part library, wherein the blueprints and examples of the parts are mainly stored in the part library; the second type is self-adaptive parts, namely parts with similar geometric forms and generating logical and topological relations, but various parameters cannot be determined specifically, and the types of the parts are more, and the various parameters need to be automatically adjusted according to actual conditions, so that the parts only store blueprints in a part library. The distinction between parts is primarily to facilitate counting the number and type of parts and to facilitate replacement and modification of parts.
The blueprint of the curtain wall part comprises the following elements: the method comprises the steps that firstly, a reference positioning system of a part is used as an anchor point of an instantiation generation example of the blueprint and is used for positioning the part example; secondly, the part contains a refined three-dimensional model of various information.
The refined three-dimensional model is a three-dimensional model built by a user or provided by a manufacturer, the model requirement is consistent with the object used in actual production, and the fineness reaches the processing level. For an adaptive part, each adjustable parameter in the three-dimensional model of the adaptive part must be capable of fully controlling the dimensional change of the part.
S2: and obtaining a three-dimensional model of the building curtain wall modeling curved surface, and performing grid division to obtain a curtain wall foundation separation curved surface, wherein the curtain wall foundation separation curved surface is used as a skeleton model.
The skeleton model comprises basic elements in three spaces, namely points, lines and planes, and can reflect the curved surface modeling, grid division form and the spatial relationship of each component of the curtain wall. For example, the back frame structure of curtain wall such as a cross beam and a column is represented by line elements, and the curtain wall glass panel is represented by face elements.
S3: and building a curtain wall positioning system of the whole project by taking the skeleton model as a reference.
The curtain wall positioning system is a space positioning element obtained by further abstracting a skeleton model, and can determine the position coordinates, the rotation angles and the normal directions of the components in space based on a unified reference system, and the positioning element is accurate and unique for each component.
S4: and determining a plurality of types of curtain wall systems meeting design requirements according to engineering actual conditions, and respectively establishing basic blueprints of curtain wall products corresponding to the systems.
The type of the curtain wall system refers to classification of the curtain wall system in curtain wall design, such as a frame glass curtain wall system, an aluminum veneer curtain wall system, an aluminum alloy window system and the like, and meanwhile, the curtain wall system can be further subdivided according to different types and specifications of specific parts and components in the system.
The curtain wall product basic blueprint comprises the following elements: the reference positioning system of the product of the type is used as an anchor point of the blueprint instantiation generation instance for positioning the product instance; and the positioning systems of the parts contained in the product of the type take the product datum positioning system as a reference system to position each component part of the product, and reflect the spatial relationship of each part.
S5: and (3) carrying out detailed design on different types of curtain wall systems, determining various parameters of component parts in each system, and selecting corresponding parts from an enterprise part library.
S6: and assembling corresponding parts according to a positioning system of each part in the basic blueprint of the curtain wall product to form a complete blueprint of the curtain wall product, and instantiating the complete blueprint of the curtain wall product into a product instance.
The complete blueprint of the curtain wall product is that various parts forming the curtain wall product are added on the content of the basic blueprint of the curtain wall product; if the standard part is the standard part, adding an example of the standard part; if the part is an adaptive part, a blueprint of the adaptive part is added.
S7: and according to the engineering design change request, corresponding parts or products are changed, and meanwhile, the product design process is controlled.
The parts or products are changed in a new revision mode, each change should be newly added with the modified new blueprint under the condition of keeping the old blueprint, and the new blueprint is used for regenerating the instance so as to ensure the consistency and traceability of the data.
The control of the product design process adopts a mode of changing the product design stage, the whole life cycle of the product is divided into working, approved, released, abandoned and other stages, and the product is changed into corresponding states in different design stages, so that the design process can be accurately controlled.
S8: and (3) placing various curtain wall product examples on positioning elements of the corresponding curtain wall system types by using an assembly method to form an engineering complete curtain wall three-dimensional model.
The assembling method is to select the same type of frameworks and curtain wall product examples of the corresponding types in the framework model, connect and bind the positioning systems of the frameworks and the curtain wall product examples, and then place the example model at the correct position of the whole project space. The curtain wall of the same type uses the same product example, so that the model data size is greatly reduced, and the processing and the installation of later products are facilitated.
S9: and generating a bill of materials according to the complete curtain wall three-dimensional model, and sending the bill of materials to a manufacturer for production and manufacturing.
In all the steps, the relationship between the blueprint and the instance is similar to the concept of facing the object in programming, the blueprint is a class or an abstract reference template, and a specific object obtained by the instantiation of the blueprint is called an instance, and each instance has independent parameters such as a name, a number and the like.
Example 2
Taking an outer facade curtain wall of a building as an example:
A 3DExperience platform (hereinafter referred to as 3DE platform) of a dawsonite system is selected as a PLM platform for implementing the method of the present invention. Taking the structural tree organization form shown in fig. 2 as an example, creating a part library of a project, wherein each standard part node contains a blueprint and an instance of the part, the blueprint contains the whole process of establishing the part model, the processes can be adjusted according to design changes, and the instance contains a result model obtained by the instantiation of the determined blueprint, and the model does not contain a modeling process, so that the instance model must be regenerated through the blueprint every time the design changes exist; the blueprint of each adaptive part only comprises the part under the node, and the example is automatically generated along with the blueprint of the curtain wall product in the process of generating the curtain wall complete product. Fig. 3 is an example of a model generated from an aluminum alloy platen blueprint.
And (3) obtaining a three-dimensional model of the building curtain wall modeling curved surface, and performing grid division to obtain a curtain wall foundation separation curved surface, wherein the curtain wall foundation separation curved surface is used as a skeleton model, and as shown in fig. 4, the upper side is the skeleton model with line elements as the rods of each type, and the lower side is the skeleton model with face elements as the wall panels of each type.
And building a curtain wall positioning system of the whole project by taking the skeleton model as a reference. The building principle of the positioning system is closely related to the logic of the model creation, and is mainly used for assisting the instantiation of a blueprint of a product (part) or assisting the localization of the instantiation of the product (part) for assembly. As shown in fig. 5, a plurality of coordinate systems are established on the skeleton model of the rod as a positioning system to assist in positioning the parts such as the bolts on the rod.
According to the actual engineering conditions, a plurality of types of curtain wall systems meeting design requirements are determined, basic blueprints of curtain wall products corresponding to the systems are respectively established, corresponding parts are assembled according to positioning systems of the parts in the basic blueprints of the curtain wall products, complete blueprints of the curtain wall products are formed, and the complete blueprints of the curtain wall products are instantiated as product examples. Various types of curtain wall systems such as LowE glass, blinds, up-hung windows and the like are created in the present embodiment, and the product obtained by instantiation of the blueprint thereof is shown in fig. 6.
When a change occurs to the design, the blueprint and instances are modified in a manner that creates a new revision as shown in FIG. 7. While the overall design process of the product is precisely controlled by means of lifecycle management as shown in fig. 8.
By using the assembly method, various curtain wall product examples are placed on the positioning elements of the corresponding curtain wall system types to form an engineering complete curtain wall three-dimensional model, as shown in fig. 9.
And generating a bill of materials according to the complete curtain wall three-dimensional model, and sending the bill of materials to a manufacturer for production and manufacture, and simultaneously, guiding the processing and the installation of the components by using the model.
It should be noted that each step described in the present application may be split into more steps, or two or more steps or partial operations of the steps may be combined into new steps according to the implementation requirements, to achieve the object of the present application.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
The above embodiments are merely for illustrating the design concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, the scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes or modifications according to the principles and design ideas of the present invention are within the scope of the present invention.
Claims (9)
1. A building curtain wall three-dimensional design modeling method based on PLM is characterized in that: the method comprises the following steps:
s1: creating a curtain wall part library, wherein parts in the curtain wall part library are used for system call, modification, replacement and statistics;
S2: building a skeleton model according to the curtain wall modeling; establishing a positioning system by taking the skeleton model as a reference;
S3: designing a curtain wall system and establishing a corresponding basic blueprint; selecting parts in a parts library according to parameters, assembling the parts according to a positioning system of a basic blueprint to form a complete blueprint and instantiating the complete blueprint as a product example;
The basic blueprint comprises a product reference positioning system and a part positioning system; the product benchmark positioning system is an anchor point of a blueprint instantiation generation instance and is used for positioning a product instance; the part positioning system takes the product reference positioning system as a reference system and is used for positioning parts forming a product and reflecting the spatial relationship of the parts;
s4: managing product states and design processes through version updating and lifecycle;
s5: assembling the skeleton model and the corresponding product examples to the right position of the curtain wall system through a positioning system to form a complete curtain wall three-dimensional model;
S6: and generating a bill of materials according to the complete curtain wall three-dimensional model for production and manufacture.
2. The three-dimensional design modeling method of the building curtain wall based on PLM according to claim 1, wherein the method comprises the following steps: in the step S1, the parts comprise standard parts and self-adaptive parts;
The standard part has standardized model, model and size;
The geometric form, the generation logic and the topological relation of the self-adaptive part are the same in large classification, and parameters are automatically adjusted according to actual conditions; the self-adaptive parts are stored in a parts library as blueprints; the blueprint comprises a part positioning system and a refined three-dimensional model containing various information of the part.
3. The three-dimensional design modeling method of the building curtain wall based on PLM according to claim 1, wherein the method comprises the following steps: in the step S2, the skeleton model is a three-dimensional model of the curved surface of the curtain wall modeling, and the three-dimensional model is subjected to grid division to obtain a basic separation curved surface of the curtain wall, wherein the basic elements in the space are used for reflecting the curved surface modeling, the grid division form and the spatial relationship of each component of the curtain wall.
4. A three-dimensional design modeling method of a building curtain wall based on PLM according to claim 3, wherein: in the step S2, the positioning system is a space positioning element obtained by further abstracting a skeleton model, and the position coordinates, the rotation angles and the normal directions of the components in space are determined based on a unified reference system; each component corresponds to a positioning element one by one.
5. The three-dimensional design modeling method of the building curtain wall based on PLM according to claim 1, wherein the method comprises the following steps: in the step S3, the complete blueprint comprises a basic blueprint and parts for forming a product; if the standard part is the standard part, adding an example of the standard part; if the part is an adaptive part, a blueprint of the adaptive part is added.
6. The three-dimensional design modeling method of the building curtain wall based on PLM according to claim 1, wherein the method comprises the following steps: in the step S4, the old blueprint is reserved during version updating, and an instance is regenerated by adopting the new blueprint; the life cycle of the product includes stages that are working, approved, released and abandoned.
7. The three-dimensional design modeling method of the building curtain wall based on PLM according to claim 1, wherein the method comprises the following steps: in the step S5, the specific steps are as follows:
The positioning system of the same type of skeleton in the binding skeleton model is connected with the positioning system of the corresponding type of product instance, so that the instance model is placed at the correct position in the whole project space.
8. A computer memory, characterized by: a computer program executable by a computer processor is stored therein, the computer program executing a PLM-based building curtain wall three-dimensional design modeling method as claimed in any one of claims 1 to 7.
9. A three-dimensional design modeling system of building curtain based on PLM, the system comprising a processor and a memory, characterized in that: the memory has stored therein computer instructions for executing the computer instructions stored in the memory, which when executed by the processor, the system implements the steps of a PLM-based building curtain wall three-dimensional design modeling method as defined in any one of claims 1 to 7.
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