CN118015200A - PLM-oriented building electromechanical system efficient three-dimensional modeling design method and system - Google Patents
PLM-oriented building electromechanical system efficient three-dimensional modeling design method and system Download PDFInfo
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Abstract
The invention provides a PLM-oriented high-efficiency three-dimensional modeling design method and system for a building electromechanical system. Before modeling, parameters required by simulation are added to components in a principle drawing library and a physical model library, and a multi-physical field simulation method is introduced to establish a complete electromechanical system evaluation system based on simulation, so that the functions of quick calculation verification and fine design are realized. According to the requirements of projects, the invention rapidly calls and modifies the schematic diagram template to generate the required electromechanical schematic diagram model in the scheme/preliminary design stage, and generates the system simulation model through the schematic diagram to rapidly adjust the equipment model selection and optimize the system design. In the fine design stage, a three-dimensional model is quickly generated based on linkage of two three-dimensional schematic diagrams, so that the whole calling of the three-dimensional model set is realized; the modeling efficiency is improved, and the construction period is saved.
Description
Technical Field
The invention belongs to the technical field of building electromechanical engineering design, and particularly relates to a PLM-oriented efficient three-dimensional modeling design method and system for a building electromechanical system.
Background
At present, the digital development of the buildings in China is mainly based on BIM (Building Information Modeling) technology application, an electromechanical BIM model is adopted for pipeline synthesis, pipeline collision and three-dimensional display, and the design is basically carried out based on two-dimensional drawings, so that the method stays at the initial stage of three-dimensional 'turnover of the mould' through the two-dimensional drawing design. The mode of two-dimensional design-three-dimensional turnover and two-dimensional drawing cannot fully exert creativity of designers, most of work is concentrated in repeated and heavy modeling work, and model modification cannot be timely transmitted to an electromechanical model due to other professional factors, namely the drawing and the three-dimensional model are difficult to keep consistent.
For the above reasons, the engineering industry is now gradually introducing a PLM platform (Product LIFECYCLE MANAGEMENT) that performs design, production, guiding construction, etc. based on a model of a single data source. The forward design based on a single data source can exert the capability of a designer to a great extent, and can reduce the total design cost and improve the design quality; but the first problem to be solved by the electromechanical professional forward design is how to realize the electromechanical three-dimensional design. In order to realize electromechanical three-dimensional design in a PLM platform, a method and a system for quick calculation and evaluation corresponding to two-dimensional design are required to be established, so that the function of quick calculation and verification in two-dimensional CAD can be realized, and the fine design which is difficult to carry out on a two-dimensional drawing can be realized.
Three-dimensional models based on a single data source require high precision to accommodate different requirements such as machining, construction, etc., and thus the modeling process is time consuming. In the PLM platform, the modeling accuracy is determined according to requirements, the workload is difficult to change, but the construction period cost can be greatly reduced by increasing the multiplexing rate of the model and putting the database construction work in front of the design. Existing similar BIM systems are multiplexed based on part templates, but there is no atlas and three-dimensional model design system based on whole association and whole invocation.
Disclosure of Invention
The invention aims to solve the technical problems that: the efficient three-dimensional modeling design method and system for the building electromechanical system for PLM are provided, and are used for rapid calculation verification and fine design.
The technical scheme adopted by the invention for solving the technical problems is as follows: the PLM-oriented high-efficiency three-dimensional modeling design method for the building electromechanical system comprises a design resource management stage, a preliminary design stage and a three-dimensional design stage, and comprises the following steps of:
s1: in the design resource management stage, a principle drawing library and a three-dimensional model library are configured, and a corresponding principle drawing set and a corresponding three-dimensional model set are generated;
S2: in the preliminary design stage, a system schematic diagram is established based on project characteristics and a schematic diagram set, and the schematic design is completed through simulation verification;
s3: in the three-dimensional design stage, a corresponding three-dimensional model set is retrieved based on a system schematic diagram, and a system simulation model and a multi-physical field simulation model are integrally called and generated to assist in three-dimensional design based on the three-dimensional model.
According to the above scheme, in the step S1, the specific steps are as follows:
S11: predefining part number attributes for the devices in the principle drawing library to correlate the corresponding devices in the three-dimensional model library;
S12: establishing resource allocation of a library and a set through item iteration accumulation;
s13: performing attribute expansion on the principle drawing library and the three-dimensional model library based on the attributes required by simulation, converting a model in the PLM platform from a geometric shape to a model with attributes, and generating a system simulation model;
S14: establishing a principle drawing library, and establishing a principle drawing set based on the principle drawing library;
s15: and establishing a three-dimensional model library through principle drawing library expansion, and establishing a three-dimensional model set based on the three-dimensional model library.
Further, in the step S11, when the principle drawing library and the three-dimensional model library are configured, a symbol model and port attributes are defined, a naming rule is formulated, and classification and chapters of the library are specified.
Further, in the step S14, a fixed template is generated according to the specifications, experience and actual project cases, the fixed template is simulated and verified and then stored in the principle drawing library, and the principle drawing set is generated by the gauge Fan Mingming.
Further, in the step S15,
Establishing a three-dimensional model set based on the fixed collocation of the equipment to realize the whole call, and generating a search engine;
Mapping the principle atlas with the three-dimensional model set, and expanding the actual model in the three-dimensional model library according to the equipment and the components in the principle atlas.
According to the above scheme, in the step S2, the specific steps are as follows:
s21: selecting a system main device according to the client requirement, and searching a corresponding principle atlas from a catalog of principle atlas according to the design specification;
S22: adjusting the principle drawing set to generate a principle drawing meeting the project characteristics;
s23: generating a corresponding system simulation model based on the schematic diagram, and completing simulation verification according to the optimization target;
s24: and optimally designing the system according to the verification result.
According to the above scheme, in the step S3, the specific steps are as follows:
S31: establishing standard names and catalog chapters for the principle atlas and the three-dimensional model set according to professions and functions;
S32: setting association information in a principle drawing library and a three-dimensional model library, and generating a corresponding three-dimensional model through a system principle drawing quickly;
S33: determining a specific model of the three-dimensional model, and accurately positioning the three-dimensional model; the positioning sequence is that the position of the main equipment is determined firstly, and then pipeline arrangement is carried out according to the cooperation of the main equipment and other professions;
S34: after the position of the three-dimensional model is determined, carrying out airflow organization optimization and fire simulation based on a multi-physical-field simulation method, and optimizing an air treatment system and a fire protection system;
S35: and generating a system simulation model based on the physical model, optimizing pipeline arrangement, and virtually debugging the opening degree of the valve and the working state of the equipment.
Further, in the step S34, the specific steps are as follows:
For the air flow organization at the tail end of the room, the air flow organization in the room is optimized by changing the positions, the shapes and the air quantity of the air supply opening and the air return opening in the room;
for a fire protection system, the fire protection system comprising spraying and water cannons is optimized by predicting the areas with low fire resistance and combustible distribution based on a physical model and fire simulation software.
Further, in the step S35,
In modeling aspect, a search engine utilizing a principle atlas library and a three-dimensional model atlas directly invokes the principle atlas and the three-dimensional model atlas;
in operation and maintenance management, after mapping and correlating a principle atlas and a three-dimensional model atlas, when a system fails, the system positions and eliminates the failure by using the mapping relation of the two three-dimensional models.
The system comprises a processor and a memory, wherein the memory stores computer instructions, the processor is used for executing the computer instructions stored in the memory, and the system realizes the steps of the PLM-oriented building electromechanical system efficient three-dimensional modeling design method when the computer instructions are executed by the processor.
The beneficial effects of the invention are as follows:
1. According to the PLM-oriented high-efficiency three-dimensional modeling design method and system for the building electromechanical system, disclosed by the invention, parameters required by simulation are added into a physical model before modeling, and a complete simulation-based electromechanical system evaluation system is built by introducing a multi-physical-field simulation method, so that the functions of quick calculation verification and fine design are realized.
2. According to the method and the requirements of the existing model generation system simulation model, the schematic diagram template aiming at the specific building is established according to the design experience and the specification requirements on the basis of establishing the principle library and the three-dimensional model library in the PLM platform, so that a principle drawing set is generated, and the whole call modification is facilitated.
3. According to the invention, based on the electromechanical main equipment in the electromechanical model library, the fixed collocation of the equipment is set according to the actual situation, so that the three-dimensional overall call of the model is realized; and associating the principle drawing library with equipment, pipe fittings, valve members and the like in the three-dimensional model library to realize two-dimensional and three-dimensional linkage.
4. According to the requirements of the project, the schematic diagram template is quickly called in the background of the design, and is modified according to the actual condition of the project, so that a required electromechanical schematic diagram model is quickly generated; and a system simulation model is generated through a schematic diagram, so that the device model selection can be conveniently and quickly adjusted, and the system is designed and optimized.
5. In the stage of fine design, a three-dimensional model is quickly generated based on two-dimensional linkage of a schematic diagram, and the whole calling of a three-dimensional model set is realized; and optimizing the arrangement of the pipeline based on a system simulation method and a CFD method aiming at pipeline loss.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
FIG. 2 is a schematic gallery property expansion representation of an embodiment of the invention.
FIG. 3 is a three-dimensional model property extension display diagram of an embodiment of the present invention.
FIG. 4 is a representation of a three-dimensional model library of an embodiment of the present invention.
Fig. 5 is a three-dimensional design presentation of 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 includes the steps of:
s1: before three-dimensional design is carried out, an electromechanical principle drawing library and an electromechanical three-dimensional model library are configured, and a corresponding electromechanical principle drawing set and an electromechanical three-dimensional model set are generated;
s11: and associating and corresponding the electromechanical principle drawing library with corresponding equipment in the electromechanical three-dimensional model library.
When the electromechanical principle drawing library and the electromechanical three-dimensional model library are configured, the model and the port attribute are defined.
When the library is built, naming rules are formulated, and classification and chapters of the library are specified.
S12: establishing resource allocation of a library and a set through item iteration accumulation;
S13: referring to fig. 2 and 3, the electromechanical principle drawing library and the electromechanical three-dimensional model library are subjected to attribute expansion based on the attributes required by simulation, and the model in the PLM platform is converted from a geometric shape to a model with attribute information; and generating a system simulation model through the model with the attribute, thereby carrying out quick simulation optimization.
S14: establishing an electromechanical principle drawing library; the electromechanical principle drawing library comprises a pipe fitting, a pipe connection, equipment, a valve element, a measuring instrument and the like, and is gradually supplemented through project iteration.
S15: establishing an electromechanical principle drawing set based on the electromechanical principle drawing library; an electromechanical principle atlas is a fixed template generated from specifications, experience, and actual project cases. Simulation verification is needed before each template is put in storage so as to ensure the correctness and usability of the electromechanical principle atlas; and the atlas name needs to be named normally, so that the atlas name is convenient to locate and search, such as public buildings, hospitals, air treatment and the like.
S16: establishing an electromechanical three-dimensional model library, see fig. 4; the electromechanical three-dimensional model library is expanded through an electromechanical principle drawing library; in the electromechanical principle drawing library, the model is accurate to nameplate parameters only and does not relate to specific models; in the electromechanical three-dimensional model library, the actual model of the equipment and the components in the electromechanical principle drawing library is expanded.
S17: establishing an electromechanical three-dimensional model set; firstly, establishing an electromechanical three-dimensional model atlas based on fixed collocation of equipment in heating ventilation, realizing integral calling, and generating a search engine; and then mapping the electromechanical two-dimensional principle atlas and the electromechanical three-dimensional model atlas, so as to facilitate two-dimensional and three-dimensional linkage.
S2: in the preliminary design stage, an electromechanical schematic diagram is established based on project characteristics;
s21: professional designers firstly select main equipment of the system through investment lifting, customer requirements and the like, search electromechanical two-dimensional principle atlas from a two-dimensional principle atlas catalog according to related design specifications, and generate electromechanical two-dimensional principle diagrams meeting project characteristics after adjustment;
S22: and generating a corresponding system simulation model based on the electromechanical two-dimensional schematic diagram of the project, and optimally designing the loop arrangement mode, pipe diameter and other aspects of the pipeline system.
S3: in the three-dimensional design stage, a corresponding electromechanical three-dimensional model set is retrieved based on a corresponding electromechanical system schematic diagram, and an electromechanical system simulation model and an electromechanical CFD simulation model are integrally called and generated based on the electromechanical three-dimensional model so as to assist the three-dimensional design, see FIG. 5;
S31: establishing standard names and catalog chapters for the electromechanical principle atlas and the electromechanical three-dimensional model set according to professions and functions so as to realize quick searching;
S32: rapidly generating a corresponding three-dimensional physical model based on an electromechanical system schematic diagram of the preliminary design stage; and setting association information in the electromechanical principle drawing library and the electromechanical three-dimensional model library, and rapidly generating a three-dimensional physical model through a system principle drawing. In general, one schematic symbol corresponds to a plurality of physical models, and thus an actual physical model is determined based on a system schematic in a three-dimensional design process.
S33: after the specific model of the three-dimensional model is determined, since the two-dimensional schematic does not have specific position information, accurate positioning of the three-dimensional model is required. The general sequence is to determine the position of the main equipment first and then to perform pipeline arrangement according to the equipment and other specialized coordination.
S34: after the position of the three-dimensional model is determined, carrying out airflow organization optimization and fire disaster simulation based on a CFD (computational fluid dynamics) method, so as to carry out targeted optimization on an air treatment system and a fire protection system;
For the airflow organization at the tail end of the room, the airflow organization in the room is optimized by changing the positions, the shapes and the air quantity of the air supply opening and the air return opening in the room, so that the design quality of the heating and ventilation profession is improved, and the comfort level of users is improved;
For a fire protection system, based on a physical model and fire simulation software, the areas with weak distribution of combustible materials and weak fire resistance are predicted, and the fire protection system such as spraying, water cannons and the like is designed in a targeted manner.
S35: after determining the positions of the electromechanical main equipment, the tail end and the like, generating a system simulation model based on the physical model; on one hand, pipeline arrangement is optimized, and on the other hand, virtual debugging is carried out on valve opening, equipment working state and the like.
In the modeling aspect, a modeling engineer directly calls the principle atlas and the three-dimensional model atlas by using a search engine of the principle atlas library and the three-dimensional model atlas, so that the modeling efficiency of the modeling engineer is effectively improved.
In the aspect of operation and maintenance, after mapping is carried out on the two-dimensional principle drawing set and the three-dimensional model drawing set, the two-dimensional principle drawing and the three-dimensional model are associated, in operation and maintenance management, after an electromechanical pipeline system, equipment and the like have faults, an alarm system transmits signals to the three-dimensional model, and professional repair staff can rapidly position and remove the faults by utilizing the mapping relation of the two three-dimensional models.
Example 2
The embodiment is based on a PLM platform, and the embodiment can be realized by a platform capable of carrying out three-dimensional forward design on a single data source. The embodiment comprises the following steps:
(1) Based on paython languages, a simulation model library is built. And performing system simulation on the pipeline system based on Dymola software in the PLM platform, and generating an interface of a simulation model based on the three-dimensional pipeline model by adopting the platform. In the embodiment, the paython language is used for supplementing the pipeline resource library, so that a special system simulation library is formed. The pipeline resource library is a paython language-based model library developed by the PLM platform aiming at the two-dimensional mapping of the pipeline, is suitable for pipeline system design and system simulation, and realizes the mapping from a three-dimensional model to a system simulation model. The model library is provided with various components of a pipeline system, a simulation model is built according to the existing equipment, pipelines, pipe accessories and the like in the market, and the parameters provided by manufacturers are verified and then the model library is completed. The complete simulation model library can quickly build a system simulation model aiming at the model of the actual engineering, and can quickly complete simulation analysis.
(2) And listing attribute lists required by simulation according to the system simulation model. The attributes of the two-dimensional model comprise simulation attributes and geometric attributes; the simulation attribute is related parameters of pipelines, pipe accessories, equipment and the like in the simulation calculation process, such as: pipe roughness, pipe bend radius, etc.; the geometric property is a geometric parameter of the pipeline, such as the pipe diameter, gradient and the like of the pipeline. The three-dimensional model attributes comprise simulation attributes, construction attributes and factory attributes; the simulation attribute comprises the attribute related to equipment and pipelines during system running; the construction attribute comprises geometric parameters of equipment and pipelines; the factory attributes include state parameters and precautions of the equipment in operation, such as the minimum operating temperature, the service life and the like. And according to the attribute classification of the two-dimensional and three-dimensional models, listing the attribute list in detail, and further according to the classification list of the two-dimensional and three-dimensional attributes, respectively completing the hooking of the corresponding attribute and model.
(3) And (5) establishing an electromechanical principle drawing library. Maintaining and enriching an electromechanical principle gallery before proceeding the project, and modifying and adding the electromechanical principle gallery on the basis of the existing project gallery; or generate a custom library for a project based on the electromechanical library.
The two-dimensional principle drawing library comprises equipment, pipe fittings, pipeline accessories, valves, sensors and the like. For the heating and ventilation equipment, besides establishing a symbol model of the heating and ventilation equipment, a logic port attribute of the heating and ventilation equipment needs to be established, and the position of the logic port should be intuitive and convenient for pipeline routing. And predefining part number attributes for the equipment in the principle drawing library to enable the part number attributes to be associated and corresponding to corresponding equipment in the three-dimensional model library. For pipe fittings, pipeline accessories, valves, measuring instruments, etc., only the symbol model and port attributes thereof need to be defined. When a two-dimensional principle drawing library is established, a naming rule needs to be formulated, and classification, chapters and the like of the library are specified.
(4) And constructing a schematic diagram by establishing a schematic diagram collection library. The principle drawing set library is an alternative principle drawing library established for realizing quick establishment of the electromechanical principle drawing. The establishment of the principle drawing library firstly forms different electromechanical systems with equipment, pipelines and pipe accessories according to the design specification of the electromechanical profession, such as various pipeline systems formed according to the water supply quantity of a water supply and drainage spraying system; secondly, equipment and the like of the air conditioning system of the machine room and the connection relation thereof are relatively fixed, and different schematic diagrams (decentralized, semi-centralized and centralized) are established according to the type of the air conditioner; after the common schematic diagram is verified through simulation, the common schematic diagram is supplemented into an electromechanical schematic diagram collection library.
The principle atlas is used for determining the generalized distribution of pipelines, pipe accessories and the like, positioning the number, relative positions and connection relations of the devices, the pipe accessories and the like, and reflecting the operation process of the system.
(5) And establishing a three-dimensional physical model library. The three-dimensional model library comprises equipment, pipe fittings, pipeline accessories, valve parts, sensors and the like. For heating and ventilation equipment, in addition to building a three-dimensional model corresponding to the heating and ventilation equipment and the sensor, logic port attributes of the heating and ventilation equipment and the sensor are used for connecting pipelines and lines, and equipment in a two-dimensional principle drawing library is related to the number attribute definition of the three-dimensional model equipment. For pipe fittings, pipeline accessories, valves, measuring instruments, etc., only the symbol model and port attributes thereof need to be defined. And when the three-dimensional model library is established, a naming rule is formulated, and the catalog chapters are convenient to search.
And establishing a mapping relation between the three-dimensional model and the principle drawing library component according to the principle drawing library.
And (3) for the two-dimensional principle drawing library established in the step (4), establishing a three-dimensional model system diagram corresponding to the two-dimensional principle drawing through the mapping relation between the two-dimensional principle drawing and the three-dimensional principle drawing, adjusting pipelines and equipment through related electromechanical professional specifications, establishing a corresponding three-dimensional model set, and finally completing the establishment of the three-dimensional model drawing library.
And (3) formulating standard names for the electromechanical three-dimensional model atlas library according to professions and functions, and establishing catalog chapters to realize quick searching.
The steps (1) to (3) are development and maintenance work of software development and maintenance personnel in the background. The resource allocation and library and set establishment are gradually accumulated through project iteration, so that the workload of three-dimensional designers is reduced, because the establishment of a refinement mode is very time-consuming, the direct calling of the designers can be realized through the three-dimensional model library and the three-dimensional model set, and the modeling efficiency is improved.
(6) And establishing a three-dimensional physical model set. The three-dimensional model set is a complete, partial complete and some partial fixed template configuration configured by fixed combination on the basis of a three-dimensional model library. The rapid three-dimensional design is realized by integrally calling and moving main components, and a targeted physical model set is established before the building model is completed according to project characteristics, so that the construction period is saved.
When the three-dimensional model system is built, the corresponding coolant water supply, coolant backwater and condensate water atlas are selected from the electromechanical three-dimensional model atlas library, then the three are connected into the coolant system through a fan coil, and finally the three are adjusted to form the three-dimensional model template of the coolant system. After the building structure model is completed, the three-dimensional model template is directly called, and the physical model can be quickly built by adjusting and positioning.
(7) And (5) project preliminary design flow. Taking a central air conditioning system of a building heating and ventilation system in a science and technology center project as an example, a rapid three-dimensional design flow based on the method is specifically described.
Firstly, determining the form of an air conditioner according to project requirements: and determining the centralized air conditioning system as a centralized integrated cold water (heat pump) heat unit according to the centralized degree, the mounting mode, the cooling mode and the air conditioning unit form.
The cold and hot loads are determined based on the building primary maintenance structure.
And a schematic diagram of the project is quickly built by finding a cold and heat source principle legend in a corresponding form in the principle diagram set. In this schematic diagram, the relative positions of the schematic diagram are roughly determined according to the project floors and rooms, and the piping connection relationship between the ends of the respective rooms is represented in the schematic diagram.
And generating a system simulation model corresponding to the schematic diagram directly through engineering mapping, and verifying the rationality of the pipeline system, thereby realizing simulation driving design.
(8) Project refinement design flow. In the project fine design stage, three-dimensional design is mainly performed based on a system schematic diagram, and fine design is performed based on multi-physical-field simulation and system simulation. The multi-physical field simulation comprises system simulation, CFD simulation, multi-body simulation, personnel simulation, fire simulation, energy consumption simulation and the like.
Firstly, synchronizing a three-dimensional physical equipment model according to a system schematic diagram, and moving the equipment model to an exact position; or selecting a corresponding three-dimensional physical equipment template according to the system schematic diagram, moving the main equipment and the auxiliary pipe fittings thereof to corresponding positions after the template is called out, and then adjusting the trend of the pipeline. The selection is made between the above two methods according to the specific circumstances.
Airflow organization is optimized based on a three-dimensional model of heating ventilation. Generating a fluid domain model according to the building and structure model, and optimizing airflow organization by modifying positions and shapes of the air inlet and the air outlet.
And carrying out system simulation based on the three-dimensional model, carrying out head loss calculation on the water pipe, carrying out pressure drop calculation on the air pipe, and optimizing pipeline routing and debugging equipment and valve parts according to calculation results.
Based on the three-dimensional refined design Model, three-dimensional labeling and three-dimensional delivery are performed through an MBD (Model-Based Definition) technology.
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 (10)
1. The PLM-oriented high-efficiency three-dimensional modeling design method for the building electromechanical system comprises a design resource management stage, a preliminary design stage and a three-dimensional design stage, and is characterized in that: the method comprises the following steps:
s1: in the design resource management stage, a principle drawing library and a three-dimensional model library are configured, and a corresponding principle drawing set and a corresponding three-dimensional model set are generated;
S2: in the preliminary design stage, a system schematic diagram is established based on project characteristics and a schematic diagram set, and the schematic design is completed through simulation verification;
s3: in the three-dimensional design stage, a corresponding three-dimensional model set is retrieved based on a system schematic diagram, and a system simulation model and a multi-physical field simulation model are integrally called and generated to assist in three-dimensional design based on the three-dimensional model.
2. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 1, wherein the method is characterized by: in the step S1, the specific steps are as follows:
S11: predefining part number attributes for the devices in the principle drawing library to correlate the corresponding devices in the three-dimensional model library;
S12: establishing resource allocation of a library and a set through item iteration accumulation;
s13: performing attribute expansion on the principle drawing library and the three-dimensional model library based on the attributes required by simulation, converting a model in the PLM platform from a geometric shape to a model with attributes, and generating a system simulation model;
S14: establishing a principle drawing library, and establishing a principle drawing set based on the principle drawing library;
s15: and establishing a three-dimensional model library through principle drawing library expansion, and establishing a three-dimensional model set based on the three-dimensional model library.
3. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 2, wherein the method is characterized by: in the step S11, when the principle drawing library and the three-dimensional model library are configured, a symbol model and port attributes are defined, a naming rule is formulated, and classification and chapters of the library are specified.
4. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 2, wherein the method is characterized by: in the step S14, a fixed template is generated according to the specifications, experience and actual project cases, the fixed template is simulated and verified and then stored in a principle drawing library, and a principle drawing set is generated by using a gauge Fan Mingming.
5. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 2, wherein the method is characterized by: in the step S15 described above, a step of,
Establishing a three-dimensional model set based on the fixed collocation of the equipment to realize the whole call, and generating a search engine;
Mapping the principle atlas with the three-dimensional model set, and expanding the actual model in the three-dimensional model library according to the equipment and the components in the principle atlas.
6. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 1, wherein the method is characterized by: in the step S2, the specific steps are as follows:
s21: selecting a system main device according to the client requirement, and searching a corresponding principle atlas from a catalog of principle atlas according to the design specification;
S22: adjusting the principle drawing set to generate a principle drawing meeting the project characteristics;
s23: generating a corresponding system simulation model based on the schematic diagram, and completing simulation verification according to the optimization target;
s24: and optimally designing the system according to the verification result.
7. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 1, wherein the method is characterized by: in the step S3, the specific steps are as follows:
S31: establishing standard names and catalog chapters for the principle atlas and the three-dimensional model set according to professions and functions;
S32: setting association information in a principle drawing library and a three-dimensional model library, and generating a corresponding three-dimensional model through a system principle drawing quickly;
S33: determining a specific model of the three-dimensional model, and accurately positioning the three-dimensional model; the positioning sequence is that the position of the main equipment is determined firstly, and then pipeline arrangement is carried out according to the cooperation of the main equipment and other professions;
S34: after the position of the three-dimensional model is determined, carrying out airflow organization optimization and fire simulation based on a multi-physical-field simulation method, and optimizing an air treatment system and a fire protection system;
S35: and generating a system simulation model based on the physical model, optimizing pipeline arrangement, and virtually debugging the opening degree of the valve and the working state of the equipment.
8. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 7, wherein the method comprises the following steps: in the step S34, the specific steps are as follows:
For the air flow organization at the tail end of the room, the air flow organization in the room is optimized by changing the positions, the shapes and the air quantity of the air supply opening and the air return opening in the room;
for a fire protection system, the fire protection system comprising spraying and water cannons is optimized by predicting the areas with low fire resistance and combustible distribution based on a physical model and fire simulation software.
9. The PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method of claim 7, wherein the method comprises the following steps: in the step S35 described above, a step of,
In modeling aspect, a search engine utilizing a principle atlas library and a three-dimensional model atlas directly invokes the principle atlas and the three-dimensional model atlas;
in operation and maintenance management, after mapping and correlating a principle atlas and a three-dimensional model atlas, when a system fails, the system positions and eliminates the failure by using the mapping relation of the two three-dimensional models.
10. The efficient three-dimensional modeling design system for the building electromechanical system facing PLM comprises a processor and a memory, and is 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 the PLM-oriented building electro-mechanical system efficient three-dimensional modeling design method as defined in any one of claims 1 to 9.
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