CN117892415A - Parameterized design method for crescent rib branch pipe of hydropower station - Google Patents
Parameterized design method for crescent rib branch pipe of hydropower station Download PDFInfo
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Abstract
The invention discloses a parameterized design method for a crescent rib branch pipe of a hydropower station, belongs to the technical field of hydraulic and hydroelectric engineering, and can solve the problem that the existing design method needs a large amount of manual intervention, so that the design efficiency is low. The method comprises the following steps: s1, constructing a primary branch pipe model in three-dimensional modeling software according to design parameters of a branch pipe, wherein the primary branch pipe model comprises a branch pipe primary model; s2, performing finite element transformation on the branch pipe primary body type to obtain a finite element calculation body type, and calling the finite element calculation body type by utilizing a branch pipe calculation module in finite element software to obtain a finite element calculation result; s3, adjusting the primary branch pipe model according to the finite element calculation result to obtain a target branch pipe model; the target bifurcated pipe model comprises bifurcated pipe target body types; and S4, performing pipe joint expansion on the bifurcated pipe target body type in three-dimensional modeling software to obtain a pipe joint expansion diagram, and outputting the pipe joint expansion diagram and processing data thereof. The invention is used for designing the crescent rib branch pipe.
Description
Technical Field
The invention relates to a parameterized design method for a crescent rib branch pipe of a hydropower station, and belongs to the technical field of hydraulic and hydroelectric engineering.
Background
Along with the continuous deep application of BIM (Building Information Modeling, building information model) digitization technology in the field of hydraulic and hydroelectric engineering construction, theoretical and technical support is provided for the three-dimensional digitization design of crescent rib branch pipes, more and more designers initially have BIM design capability, and the three-dimensional digitization design of crescent rib branch pipes of hydropower stations is also enabled to be popularized.
The crescent rib branch pipe is mainly applied to the parts of a hydropower station water diversion channel, a water outlet channel, a high water head water drainage hole and the like, is an indispensable main structure for one-hole multi-pipe arrangement, and has the design quality of being capable of guaranteeing that the water diversion channel can run safely and reliably with smaller water head loss. The traditional design method is based on plane and section, and is aided with coordinate transformation calculation for design. With the application and popularization of BIM technology in recent years, CATIA (computer AIDED THREE-dimensional Interactive Application) software or other three-dimensional software parametric modeling and bifurcated pipe design using finite element programs have been adopted, but the following problems still exist in the existing design method: (1) The full-stage design cannot be automatically performed, and more manual intervention is needed for the design flow; because of complex bifurcated pipe body type, when CATIA or other three-dimensional software generated models are directly imported into finite element programs, problems such as face loss, difficult division of mapping units, model edge coupling and the like can occur. At this time, operations such as cutting and geometric element merging are required for the lead-in model, which results in a relatively long time for finite element pretreatment. (2) The generated expansion diagram is rough, only has expansion outline, and has no corresponding welding line and geometric characteristic points. Because of the lack of the information, the arrangement adjustment of the welding lines of the branch pipe joints is needed manually, and meanwhile, the geometric information and the position information of the welding lines cannot be obtained quickly, so that whether the arrangement of the welding lines is reasonable cannot be judged quickly. (3) the development processing data cannot be outputted. When the bifurcated pipe is processed, the outline is required to be unfolded, but the coordinate data of the outline is required to be unfolded for lofting and cutting, the existing design method generally requires manual measurement for data collection, the data collection efficiency is low, and the accuracy is poor.
Disclosure of Invention
The invention provides a parameterized design method for a crescent rib branch pipe of a hydropower station, which can solve the problem that the existing design method needs a large amount of manual intervention, so that the design efficiency is low.
The invention provides a parameterized design method of a crescent rib branch pipe of a hydropower station, which comprises the following steps:
S1, constructing a primary branch pipe model in three-dimensional modeling software according to design parameters of a branch pipe, wherein the primary branch pipe model comprises a branch pipe primary body type;
s2, performing finite element transformation on the branch pipe primary body type to obtain a finite element calculation body type, and calling the finite element calculation body type by utilizing a branch pipe calculation module in finite element software to obtain a finite element calculation result;
s3, adjusting the primary branch pipe model according to the finite element calculation result to obtain a target branch pipe model; the target bifurcated pipe model comprises a bifurcated pipe target body type;
And S4, performing pipe joint expansion on the bifurcated pipe target body type in the three-dimensional modeling software to obtain a pipe joint expansion diagram, and outputting the pipe joint expansion diagram and processing data thereof.
Optionally, the step S3 specifically includes:
when the finite element calculation result meets the requirement of the branch pipe design, the primary branch pipe model is used as a target branch pipe model;
And when the finite element calculation result does not meet the branch pipe design requirement, adjusting the primary branch pipe model according to the finite element calculation result, and repeatedly executing the step S2 and the step S3 until the finite element calculation result meets the branch pipe design requirement, and taking the primary branch pipe model meeting the branch pipe design requirement as a target branch pipe model.
Optionally, in the step S4, performing pipe joint expansion on the bifurcated pipe target body type in the three-dimensional modeling software to obtain a pipe joint expansion diagram, which specifically includes:
generating a weld geometry and a marking line in the three-dimensional modeling software by utilizing weld parameters and expansion parameters of the bifurcated pipe target body type;
and performing pipe joint expansion on the bifurcated pipe target body type according to the weld geometry and the marking lines to obtain a pipe joint expansion diagram.
Optionally, performing pipe joint expansion on the bifurcated pipe target body according to the weld geometry and the marking line to obtain a pipe joint expansion diagram, which specifically includes:
performing pipe joint expansion on the bifurcated pipe target body type to obtain an expansion initial diagram;
and projecting the weld geometry and the marking lines to the initial expansion diagram, and adding an expansion coordinate system in the initial expansion diagram to obtain a pipe joint expansion diagram.
Optionally, outputting the pipe joint expansion diagram in S4 specifically includes:
And outputting the pipe joint expansion diagram by using CAD software.
Optionally, the outputting the processing data of the pipe joint expansion chart in S4 specifically includes:
and extracting coordinate data of the expanded body type outline of the pipe joint expansion chart, and outputting the coordinate data to excel.
Optionally, the method further comprises:
s5, outputting a three-dimensional design drawing of the branch pipe target body type and a finite element calculation result of the finite element calculation body type corresponding to the target branch pipe model.
Optionally, the S1 specifically includes:
constructing a skeleton sketch in three-dimensional modeling software according to design parameters of the branch pipe;
And driving the skeleton sketch by using the design parameters of the branch pipe to generate a primary branch pipe model.
Optionally, after the step S3, the method further includes:
and carrying out multiple parameter adjustment on the target branch pipe model, calculating the engineering quantity of the target branch pipe model after each parameter adjustment, and selecting the target branch pipe model with the minimum engineering quantity as the final target branch pipe model.
Optionally, in the step S2, finite element transformation is performed on the primary body type of the bifurcated pipe to obtain a finite element calculation body type, which specifically includes:
And adding, cutting and splicing the main branch pipe structure of the branch pipe primary body in the three-dimensional modeling software to obtain a finite element calculation body type.
The invention has the beneficial effects that:
(1) According to the hydropower station crescent rib branch pipe parameterization design method, the branch pipe calculation module is compiled in finite element software in advance, the branch pipe calculation module is utilized to call the finite element calculation body type obtained by the primary branch pipe body type through finite element transformation, the primary branch pipe model is continuously adjusted by utilizing the obtained finite element calculation result, the target branch pipe model is obtained, and pipe joint expansion and processing data output are carried out on the target branch pipe model. The invention completely adopts parameterization to control the three-dimensional design process according to the whole-stage flow sequence of the design, structure calculation and drawing, solves the problems that the fork tube arrangement and the body type are subjected to a great deal of repeated work caused by adjustment, the efficiency is low, and various schemes are difficult to be arranged in a short time for selection; meanwhile, the invention can provide structural calculation results for design, and unfolding data and engineering drawings required by processing and manufacturing.
(2) The parameterized design method of the crescent rib branch pipe of the hydropower station provided by the invention covers the whole stage of branch pipe arrangement and body type design, and by combing the association elements and adopting a method of parameter and graphic driving control, the branch pipe arrangement and body type design can be rapidly completed, the finite element calculation body type is formed, the processing expansion data is output, the drawing function is completed, and the design efficiency is greatly improved.
Drawings
FIG. 1 is a flow chart of a parameterized design method for a crescent rib branch pipe of a hydropower station, which is provided by the embodiment of the invention;
FIG. 2 is a perspective view of a Y-shaped branch pipe output by three-dimensional modeling software provided by an embodiment of the invention;
FIG. 3 is a perspective view of a three-way branch pipe output by three-dimensional modeling software according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of finite element calculation of Y-shaped branch pipes in three-dimensional modeling software according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a finite element calculation result of a Y-shaped branch pipe in finite element software according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of finite element calculation of a three-way branch pipe in three-dimensional modeling software according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a finite element calculation result of a three-branch type branch pipe in finite element software according to an embodiment of the present invention;
FIG. 8 is a branch pipe joint expansion diagram of three-dimensional modeling software output provided by an embodiment of the invention;
fig. 9 is an expanded view of a bifurcated pipe joint in CAD software according to an embodiment of the present invention.
Reference numerals:
1. y-shaped branch pipes; 2. a three-way branch pipe; 3. weld geometry; 4. a longitudinal weld; 5. an axis of symmetry; 6. a center line.
Detailed Description
The present invention is described in detail below with reference to examples, but the present invention is not limited to these examples.
The embodiment of the invention provides a parameterized design method for a crescent rib branch pipe of a hydropower station, which is shown in fig. 1 to 9, and comprises the following steps:
S1, constructing a primary branch pipe model in three-dimensional modeling software according to design parameters of a branch pipe, wherein the primary branch pipe model comprises a branch pipe primary model body.
S1 specifically comprises:
constructing a skeleton sketch in three-dimensional modeling software according to design parameters of the branch pipe;
and driving the skeleton sketch by using the design parameters of the branch pipe to generate a primary branch pipe model.
In practical applications, the three-dimensional modeling software may be CATIA software or other three-dimensional software.
The three-dimensional design of the bifurcated pipe comprises a framework design and a geometric design of a main vertebral canal, a branch vertebral canal and a crescent rib; wherein the framework is a control file for driving the bifurcated pipe design; and driving the skeleton sketch by using parameters, and generating the geometry of each part of the bifurcated pipe according to the skeleton as a limiting range.
The skeleton sketch is established by using control elements, wherein the control elements comprise a bifurcated pipe horizontal plane, a common tangent circle, a main cone axis and a branch cone axis; the control element can control the overall appearance and the dimension of the branch pipe.
S2, performing finite element transformation on the branch pipe primary body type to obtain a finite element calculation body type, and calling the finite element calculation body type by utilizing a branch pipe calculation module in finite element software to obtain a finite element calculation result.
The method comprises the steps of performing finite element transformation on a primary body type of a bifurcated pipe to obtain a finite element calculation body type, wherein the finite element calculation body type is specifically as follows:
and adding, cutting and splicing the main branch pipe structure of the primary branch pipe in three-dimensional modeling software to obtain the finite element calculated body type.
Specifically, the three-dimensional modeling software adds a new model formed by structures such as a main pipe, a branch pipe, a main pipe, a branch pipe stuffy head and the like with a certain length in the range of the upper and the lower stream of the branch pipe on the basis of the primary model of the constructed branch pipe; and then, after the three-dimensional modeling software performs Boolean operations such as cutting and splicing on the model, the model can meet the topological structure of 4-sided units (the number of units divided in the mode is minimum under the condition of the same node number), so that a finite element calculation body type is obtained, and the finite element calculation body type can be directly called by a branch pipe calculation module in the finite element software to perform finite element calculation. Therefore, the problem that the primary model of the bifurcated pipe cannot be directly gridded in finite element software is avoided, human intervention is reduced, and efficiency is improved.
S3, adjusting the primary branch pipe model according to the finite element calculation result to obtain a target branch pipe model; the target branch pipe model includes a branch pipe target body type.
Specifically, when the finite element calculation result meets the requirement of the branch pipe design, the primary branch pipe model is used as a target branch pipe model;
And when the finite element calculation result does not meet the branch pipe design requirement, the primary branch pipe model is adjusted according to the finite element calculation result, and S2 and S3 are repeatedly executed until the finite element calculation result meets the branch pipe design requirement, and the primary branch pipe model meeting the branch pipe design requirement is taken as the target branch pipe model.
The finite element transformation comprises finite element model design, model Boolean operation and scaling; the finite element model is designed as a basic file of finite element transformation; the components such as a main pipe, a main pipe choke plug, a branch pipe choke plug, a support and the like are added on the basis of three-dimensional design of a branch pipe primary model generated by the drawing; the model Boolean operation is to avoid secondary topology modeling in finite element software, and directly performs slicing according to the body type characteristics of the branch pipe, so that the finite element software is beneficial to automatically dividing units; scaling is used to adjust the unit scaling relationship between the generated branch pipe primary model and the general finite element software, for example, when the english unit or international unit adopted by the finite element software is inconsistent with the CATIA software, the scaling of the module size is required.
The invention drives the whole design flow by parameterized bifurcated pipe skeleton sketch, also comprises automatic generation of parameterized control finite element calculation body types, and the finite element calculation body types meeting the design requirements can be automatically called by bifurcated pipe calculation modules edited in general finite element software to perform operations such as Boolean operation, scaling and the like, so as to generate a component for three-dimensional finite element calculation body types. And opening general finite element software, and leading in the finite element calculation body type to be directly divided by adopting a mapping unit and then to calculate. Taking finite element software ANSYS workbench as an example, a corresponding branch pipe calculation module can be directly compiled, only the finite element calculation body type is needed to be input, boundary conditions can be automatically applied after the branch pipe calculation module is updated, the unit is automatically divided, working condition combination is automatically carried out, calculation results are obtained, and other steps of the finite element are not needed to be manually interfered except the updating of the leading-in module.
And S4, performing pipe joint expansion on the bifurcated pipe target body type in three-dimensional modeling software to obtain a pipe joint expansion diagram, and outputting the pipe joint expansion diagram and processing data thereof.
And S4, performing pipe joint expansion on the bifurcated pipe target body type in three-dimensional modeling software to obtain a pipe joint expansion diagram, wherein the method specifically comprises the following steps of:
And generating a weld geometry 3 and a marked line by using the weld parameters and the expansion parameters of the bifurcated pipe target body type in three-dimensional modeling software.
Wherein the weld parameters include a weld angle; the deployment parameters include a deployment direction; the marked lines comprise special marks such as marked waistlines, symmetry axes 5, center lines 6 and the like.
And performing pipe joint expansion on the bifurcated pipe target body type according to the weld geometry 3 and the marked lines to obtain a pipe joint expansion diagram.
The method specifically comprises the following steps:
performing pipe joint expansion on the bifurcated pipe target body type to obtain an expansion initial diagram;
And projecting the weld geometry 3 and the marked lines to the initial expansion diagram, and adding an expansion coordinate system in the initial expansion diagram to obtain a pipe joint expansion diagram.
The pipe joint expansion diagram of the bifurcated pipe comprises a weld joint position lofting and a calling expansion template; the weld joint position lofting is a starting point of the expansion design of the bifurcated pipe, and after the expansion template is called, expansion components of each part of the bifurcated pipe are generated and special positions such as a central line 6, a transverse weld joint and a longitudinal weld joint 4 are marked.
The invention carries out template design and secondary development on CATIA or other three-dimensional software, automatically generates special marks such as weld geometry 3, mark waist lines, axes and the like by utilizing parameters such as weld angle, unfolding direction and the like, projects the special marks onto an unfolding diagram during unfolding, and then automatically generates an unfolding coordinate system so as to intuitively display the relative positions of the weld and the special marks, thereby being capable of intuitively checking whether the arrangement of the weld is reasonable or not and conveniently automatically drawing the weld in a subsequent drawing.
The expansion diagram of the output pipe joint in the S4 is specifically as follows:
and outputting a pipe joint expansion chart by using CAD software.
And S4, processing data of an output pipe joint expansion chart, specifically:
and extracting coordinate data of the expanded body type outline of the pipe joint expansion chart, and outputting the coordinate data to excel.
The invention utilizes the interaction interface of CATIA or other three-dimensional software and office excel software to extract the coordinates of the outline of the unfolded body shape of the pipe joint unfolded graph, and outputs the coordinate data to excel. Therefore, the problem of time and labor consumption caused by the fact that manual measurement is adopted for data collection in the traditional method is avoided, and efficiency and accuracy are greatly improved. Taking CATIA as an example, the built-in knowledge engineering array can be adopted for secondary development to achieve the effect.
The invention can drive the whole design flow by parameters in CATIA or other three-dimensional software by improving the traditional method, and covers the design of all stages of arrangement scheme research, calculation analysis, drawing and processing data output. In actual engineering, engineers only need to concentrate on main body type parameters such as water channel arrangement, flow rate, pipe diameter and the like, and after the other works are input with the parameters determined by the parameters, a great deal of complex and repeated works in the original design method can be completed by less updating operations; multiple schemes can be arranged for comparison and selection in a short time; design drawings and tooling data are provided even while the solution is being determined.
Further, the method further comprises:
S5, outputting a three-dimensional design drawing of the target body type of the branch pipe and a finite element calculation result of the finite element calculation body type corresponding to the target branch pipe model.
Preferably, after S3, the method further comprises:
And carrying out multiple parameter adjustment on the target branch pipe model, calculating the engineering quantity of the target branch pipe model after each parameter adjustment, and selecting the target branch pipe model with the minimum engineering quantity as the final target branch pipe model.
According to the automatic calculation of the engineering quantity, a more economical body type structure can be obtained.
The invention provides a method for carrying out bifurcated pipe parameterization design by taking CATIA+ANSYS as an example, which specifically comprises the following steps:
First, a primary branch pipe model is built in CATIA software according to the design parameters of the branch pipe. The primary branch pipe model comprises a finite element transformation module, a pipe joint expansion module and a processing data output module. The finite element transformation module is used for carrying out finite element transformation on the bifurcated pipe primary body type to obtain a finite element calculation body type.
The design parameters of the branch pipe comprise angle type parameters and length type parameters, and are classified according to different functions. The parameter names and classifications are shown in Table 1.
TABLE 1 design parameters table of bifurcated pipes
The elements of the design parameter control comprise basic elements such as points, lines, planes and the like, and also comprise elements such as entity sketches and the like. The design parameters constrain the results of the geometric figure, such as shape, position, number, size and the like, and the displayed part entity structure is driven to be correspondingly adjusted after the design parameters are updated, and the results are shown in fig. 2 and 3. Fig. 2 is a perspective view of the output Y-branch pipe 1; fig. 3 is a perspective view of the output three-way branch pipe 2.
And then, the method is carried out by modulating ANSYS workbench into a compiled branch pipe calculation module, calculating the body type by utilizing design modeler finite elements input and output by CATIA, adjusting boundary conditions and set wall thickness parameters, automatically completing grid division, and verifying whether the wall thickness of the target branch pipe meets the design requirement according to the finite element calculation result. If the design requirement is met, the primary branch pipe model is the target branch pipe model; the output branch pipe target body type can adopt CATIA engineering drawing to output a body type diagram, the finite element calculation body type can be directly opened by ANSYS WORKBENCH, the branch pipe expansion can be generated through module calling and then can output a pipe expansion diagram through CATIA engineering drawing, and the processing data of the pipe expansion diagram is output into data in an excel format through knowledge engineering programming.
If the finite element calculation result does not meet the design requirement, updating the wall thickness parameter or the bifurcation angle parameter for calculation again; and repeatedly executing the step until the finite element calculation result meets the branch pipe design requirement, and outputting relevant data by taking the primary branch pipe model meeting the branch pipe design requirement as the target branch pipe model. In the embodiment of the invention, the thickness of the bifurcated pipe wall is generally 12 mm-60 mm; the bifurcation angle is generally 60-120 degrees; when the finite element calculation result does not meet the design requirement, the wall thickness of the branch pipe can be adjusted within the range of the wall thickness of the branch pipe, and if the finite element calculation result obtained by carrying out finite element calculation again after adjustment still does not meet the design requirement, the branch angle parameter can be adjusted at the moment. In practical application, the tuning is usually performed for a plurality of times according to experience of a designer, and finally, the bifurcated pipe model meeting the design requirement is obtained.
The invention directly reads the CATIA module file through the module input function of the general finite element software. When called, the interface file format can be selected according to different interface file formats, such as STP, CATPART, IGES and the like. The finite element calculation body type is called into the branch pipe calculation module of the finite element software, and is shown in fig. 5 and 7.
The precondition of the design of the three-dimensional bifurcated pipe target body type is structural calculation, and the calculated stress distribution of the bifurcated pipe primary body type can be obtained through finite element calculation, so that whether the primary wall thickness and the primary body type meet the strength requirements is known. And then, the wall thickness can be adjusted for trial calculation or the control parameters can be further modified to obtain more reasonable calculation results.
After the target branch pipe model is obtained, a pipe joint unfolding module is called, the pipe joint is automatically unfolded according to pipe joint welding lines, meanwhile, an unfolding diagram of the pipe joint is generated according to a specified direction, meanwhile, unfolding positions of special positions such as a central line 6 and a waist line are generated, and corresponding plane coordinate shafting is generated according to the unfolded sizes, and the method is specifically shown in fig. 8 and 9.
And finally, outputting the outline coordinates of the unfolded graph in an excel format by using CATIA programming engineering.
The three-dimensional design method provided by the invention solves the problems that the efficiency is low, and a plurality of schemes are difficult to be arranged in a short time for selection due to a great deal of repeated work caused by the arrangement of the branch pipes and the adjustment of the body types; meanwhile, the structural calculation result for design, the unfolding data and engineering drawings required by processing and manufacturing can be provided; the invention covers the whole stage of the fork tube arrangement and the body type design, and can rapidly complete the fork tube arrangement and the body type design by combing the association elements and adopting a method of parameter and graphic driving control, output the finite element calculation result of the finite element calculation body type, output the processing unfolding data, complete the design results such as drawing and the like. The invention establishes a functional framework, wherein the framework is composed of functional modules with different purposes, and the change of the size and the body type of the branch pipe is driven by parameters; the programming function and the data interface of CATIA or other three-dimensional software are utilized to complete the three-dimensional design work of the whole stage of the three-dimensional design drawing, the output of the finite element calculation result, the expansion of the branch pipe joint and the output of the processing data; the rapid and accurate design purpose of the crescent rib branch pipe is achieved, and the design efficiency is greatly improved.
While the application has been described in terms of preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the application, and it is intended that the application is not limited to the specific embodiments disclosed.
Claims (10)
1. A parameterized design method for a crescent rib branch pipe of a hydropower station is characterized by comprising the following steps:
S1, constructing a primary branch pipe model in three-dimensional modeling software according to design parameters of a branch pipe, wherein the primary branch pipe model comprises a branch pipe primary body type;
s2, performing finite element transformation on the branch pipe primary body type to obtain a finite element calculation body type, and calling the finite element calculation body type by utilizing a branch pipe calculation module in finite element software to obtain a finite element calculation result;
s3, adjusting the primary branch pipe model according to the finite element calculation result to obtain a target branch pipe model; the target bifurcated pipe model comprises a bifurcated pipe target body type;
And S4, performing pipe joint expansion on the bifurcated pipe target body type in the three-dimensional modeling software to obtain a pipe joint expansion diagram, and outputting the pipe joint expansion diagram and processing data thereof.
2. The method according to claim 1, wherein S3 specifically comprises:
when the finite element calculation result meets the requirement of the branch pipe design, the primary branch pipe model is used as a target branch pipe model;
And when the finite element calculation result does not meet the branch pipe design requirement, adjusting the primary branch pipe model according to the finite element calculation result, and repeatedly executing the step S2 and the step S3 until the finite element calculation result meets the branch pipe design requirement, and taking the primary branch pipe model meeting the branch pipe design requirement as a target branch pipe model.
3. The method according to claim 1, wherein the performing, in the three-dimensional modeling software, the pipe joint expansion on the branch pipe target body type in S4 to obtain a pipe joint expansion map specifically includes:
generating a weld geometry and a marking line in the three-dimensional modeling software by utilizing weld parameters and expansion parameters of the bifurcated pipe target body type;
and performing pipe joint expansion on the bifurcated pipe target body type according to the weld geometry and the marking lines to obtain a pipe joint expansion diagram.
4. The method according to claim 3, wherein performing pipe joint expansion on the bifurcated pipe target body type according to the weld geometry and the marking line to obtain a pipe joint expansion diagram specifically comprises:
performing pipe joint expansion on the bifurcated pipe target body type to obtain an expansion initial diagram;
and projecting the weld geometry and the marking lines to the initial expansion diagram, and adding an expansion coordinate system in the initial expansion diagram to obtain a pipe joint expansion diagram.
5. The method according to claim 1, wherein the outputting the pipe section expansion map in S4 is specifically:
And outputting the pipe joint expansion diagram by using CAD software.
6. The method according to claim 1, wherein the outputting the processing data of the pipe section expansion map in S4 is specifically:
and extracting coordinate data of the expanded body type outline of the pipe joint expansion chart, and outputting the coordinate data to excel.
7. The method according to claim 1, wherein the method further comprises:
s5, outputting a three-dimensional design drawing of the branch pipe target body type and a finite element calculation result of the finite element calculation body type corresponding to the target branch pipe model.
8. The method according to claim 1, wherein S1 specifically comprises:
constructing a skeleton sketch in three-dimensional modeling software according to design parameters of the branch pipe;
And driving the skeleton sketch by using the design parameters of the branch pipe to generate a primary branch pipe model.
9. The method according to claim 1, characterized in that after said S3, the method further comprises:
and carrying out multiple parameter adjustment on the target branch pipe model, calculating the engineering quantity of the target branch pipe model after each parameter adjustment, and selecting the target branch pipe model with the minimum engineering quantity as the final target branch pipe model.
10. The method according to claim 1, wherein the step S2 of performing finite element transformation on the primary form of the branch pipe to obtain a finite element calculated form comprises:
And adding, cutting and splicing the main branch pipe structure of the branch pipe primary body in the three-dimensional modeling software to obtain a finite element calculation body type.
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| CN110489890A (en) * | 2019-08-23 | 2019-11-22 | 中国电建集团成都勘测设计研究院有限公司 | Steel bifurcated structure automatic map delivery method |
| CN110688792A (en) * | 2019-09-18 | 2020-01-14 | 长江勘测规划设计研究有限责任公司 | Design method of flat-bottom symmetrical Y-shaped steel bifurcated pipe based on CATIA and ANSYS |
| CN110930396A (en) * | 2019-12-03 | 2020-03-27 | 西安建筑科技大学 | Revit platform-based automatic pipeline weld joint labeling method |
| CN113158378A (en) * | 2021-05-08 | 2021-07-23 | 中国水利水电第十一工程局有限公司 | Method for drawing up body type of crescent rib steel bifurcated pipe |
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2024
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110489890A (en) * | 2019-08-23 | 2019-11-22 | 中国电建集团成都勘测设计研究院有限公司 | Steel bifurcated structure automatic map delivery method |
| CN110688792A (en) * | 2019-09-18 | 2020-01-14 | 长江勘测规划设计研究有限责任公司 | Design method of flat-bottom symmetrical Y-shaped steel bifurcated pipe based on CATIA and ANSYS |
| CN110930396A (en) * | 2019-12-03 | 2020-03-27 | 西安建筑科技大学 | Revit platform-based automatic pipeline weld joint labeling method |
| CN113158378A (en) * | 2021-05-08 | 2021-07-23 | 中国水利水电第十一工程局有限公司 | Method for drawing up body type of crescent rib steel bifurcated pipe |
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