CN112989447A - Knowledge engineering-based pipe flange connection fastener design system and method - Google Patents
Knowledge engineering-based pipe flange connection fastener design system and method Download PDFInfo
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Abstract
The invention discloses a pipe flange connection fastener design system based on knowledge engineering, which comprises: the database management subsystem is used for configuring a database according to specific ship products; the data extraction and operation subsystem determines a proper nut specification through the nominal diameter information of the flange bolt hole, and performs data push and calculation according to a preset relevant rule to obtain a theoretical length value of the bolt; combining the theoretical length value of the bolt with a standard database, and screening according to preset related rules to obtain standard fastener information conforming to the theoretical value; and the quick design tool subsystem is used for carrying out preset program built-in rule calculation on the standard fastener information and calling the input information and the standard data according to a preset format to generate fastener detail contents. The invention can quickly realize the characteristic form display and detail statistics of the fastener, can meet the installation design requirement of the fastener, and has safe and reliable use, short development period, good design quality and high design efficiency.
Description
Technical Field
The invention belongs to the field of digital design of ship turbines, and particularly relates to a pipe flange connecting fastener design system and method based on knowledge engineering.
Background
In the production and manufacture of ship pipelines, fasteners such as pipe flange bolts, nuts and the like can realize the effectiveness of pipeline connection by fastening flanges and flanges, and flanges and other accessories. Pipe flange fasteners have many application scenarios, such as flange-to-flange, flange-to-valve, flange-to-welded seat plate, flange-to-deck drain hole, flanged accessory, and the like. Meanwhile, the number of ship pipeline systems is large, the number of related pipe flange fasteners is large, and certain difficulty is brought to fastener type selection and detailed statistical calculation. The traditional method generally adopts manual query standard specification to carry out design and detail statistics, has low efficiency, and is easy to have the problems of inconsistent specification, error in detail statistics and the like.
Disclosure of Invention
The invention aims to provide a pipe flange connecting fastener design system and method based on knowledge engineering, which can calculate and acquire parameter information of a connecting fastener by extracting characteristic attribute information of a pipe flange, can quickly realize characteristic form display and detailed statistics of the fastener according to a specific pipeline system range, and can meet the installation design requirements of the fastener.
In order to solve the technical problems, the technical scheme of the invention is as follows: a pipe flange connection fastener design system based on knowledge engineering comprises a data template library management subsystem, a data extraction and operation subsystem and a rapid design tool subsystem; wherein the content of the first and second substances,
the database management subsystem is used for configuring a database according to specific ship products, wherein the database at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
the data extraction and operation subsystem is used for selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design; selecting a drawing form of the pipe flange fastener; acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model; acquiring geometric parameters of two corresponding flanges or accessories through a specific gasket; selecting corresponding data from a data template library; determining a proper nut specification through the nominal diameter information of the flange bolt hole, and carrying out data pushing and calculation according to a preset relevant rule to obtain a theoretical length value of the bolt; combining the theoretical length value of the bolt with a standard database, and screening according to preset related rules to obtain standard fastener information conforming to the theoretical value; storing the standard fastener information into a dynamic data cache;
the rapid design tool subsystem is used for drawing a simplified model of the fastener according to standard fastener information and a drawing form of the pipe flange fastener; comparing and judging the cycle times and the number of flange pairs, and if the cycle times is less than the number of flange pairs, re-acquiring the number of flange pairs corresponding to the specific gasket and sequentially executing downwards; otherwise, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
Further, the rapid design tool subsystem is a KE/CAD/PLM integrated system.
Furthermore, the data template base of the data template base management subsystem is a configurable standard data table and a drawing form template, which are respectively stored according to standards and template types, and are maintained in real time by combining standard release and template updating.
Furthermore, the data extraction and operation subsystem has the automatic fastener selection capability and at least comprises a design data extraction module, a rule operation module and a design check module; the design data extraction module has the capability of identifying characteristic parameters and attribute information of accessories such as flanges and the like through flange gaskets; the rule operation module calculates and extracts standard data according to the connection form, and automatically selects the standard specifications of fasteners such as bolts, nuts and the like based on knowledge engineering; the design checking module is used for carrying out design checking on the length of the half-thread bolt and the strength of the bolt.
Furthermore, the rapid design tool subsystem realizes rapid generation of a simplified fastener model based on a super-copy function, automatically records the specification and parameter information of the fastener in the attributes of the simplified model, and simultaneously realizes detailed statistics and list generation of the fastener, and at least comprises a simplified fastener model drawing module and a simplified fastener detail statistics module; the fastener simplified model drawing module is combined with standard data to automatically generate a dot-dash line or a simplified three-dimensional solid model; the fastener detail counting module realizes the standard, specification, single weight, quantity and total weight statistics of the fasteners and displays the statistics in a list form.
A pipe flange coupling fastener design method based on knowledge engineering comprises the following steps:
s1, configuring a data template library according to specific ship products, wherein the data template library at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
s2, selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design;
s3, selecting a drawing form of the pipe flange fastener;
s4, acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model;
s5, acquiring the geometric parameters of the two corresponding flanges or accessories through the specific gasket;
s6, selecting corresponding data from the data template base;
s7, determining a proper nut specification through the nominal diameter information of the flange bolt hole, and pushing and calculating data according to preset related rules to obtain a theoretical length value of the bolt;
s8, combining the theoretical length value of the bolt obtained in S7 with the standard database in S1, and screening according to preset relevant rules to obtain standard fastener information meeting the theoretical value;
s9, storing the standard fastener information in the S8 into a dynamic data cache;
s10, drawing a simplified fastener model according to the standard fastener information obtained in S8 and the drawing form of the pipe flange fastener in S3;
s11, comparing and judging the cycle times and the number of flange pairs obtained in the S4, and if the cycle times are smaller than the number of the flange pairs, turning to S5 and executing the steps downwards in sequence; otherwise, executing S12;
and S12, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
Further, the three-dimensional pipeline system node model in S2 includes at least a total section pipeline system model node, a section model node, and a single pipeline node.
Further, the drawing form of the pipe flange fastener in S3 includes at least a dot-dash line and a simplified three-dimensional solid model.
Further, the geometric parameters of the flange or the accessory in S5 at least include material, thickness, bolt hole diameter and hole number.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of any of the methods described above.
Compared with the prior art, the invention has the beneficial effects that:
the invention constructs a perfect data template base aiming at the design of the pipe flange connecting fastener, extracts the characteristic attribute information of the pipe flange according to a specific pipeline system object so as to realize calculation and screen out accurate standard information of the fastener, presents the standard information in a simplified model form, realizes detailed statistics of the fastener in a list form, calculates the quantity, specification and weight information of the fastener by automatically developing rules, extracts standard data, and can quickly calculate the quantity, specification and weight information of the fastener, thereby avoiding repeated operation of designers and improving the working efficiency and quality of the designers.
Drawings
FIG. 1 is a block diagram of a system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method in an embodiment of the invention;
FIG. 3 is an interface diagram of a fastener data template library configuration in an embodiment of the present invention;
FIG. 4 is an interface diagram of an automatic fastener design toolbar according to an embodiment of the present invention;
FIG. 5 is an interface diagram of a node obtaining interaction interface in an embodiment of the present invention;
FIG. 6 is a schematic illustration of a simplified model drawing of a flange fastener in an embodiment of the invention;
fig. 7 is a fastener detail information table in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The technical scheme of the invention is as follows: a pipe flange connection fastener design system based on knowledge engineering is shown in figure 1 and comprises a data template library management subsystem, a data extraction and operation subsystem and a rapid design tool subsystem; wherein the content of the first and second substances,
the database management subsystem is used for configuring a database according to specific ship products, wherein the database at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
the data extraction and operation subsystem is used for selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design; selecting a drawing form of the pipe flange fastener; acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model; acquiring geometric parameters of two corresponding flanges or accessories through a specific gasket; selecting corresponding data from a data template library; determining a proper nut specification through the nominal diameter information of the flange bolt hole, and carrying out data pushing and calculation according to a preset relevant rule to obtain a theoretical length value of the bolt; combining the theoretical length value of the bolt with a standard database, and screening according to preset related rules to obtain standard fastener information conforming to the theoretical value; storing the standard fastener information into a dynamic data cache;
the rapid design tool subsystem is used for drawing a simplified model of the fastener according to standard fastener information and a drawing form of the pipe flange fastener; comparing and judging the cycle times and the number of flange pairs, and if the cycle times is less than the number of flange pairs, re-acquiring the number of flange pairs corresponding to the specific gasket and sequentially executing downwards; otherwise, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
Further, the rapid design tool subsystem is a KE/CAD/PLM integrated system.
Furthermore, the data template base of the data template base management subsystem is a configurable standard data table and a drawing form template, which are respectively stored according to standards and template types, and are maintained in real time by combining standard release and template updating.
Furthermore, the data extraction and operation subsystem has the automatic fastener selection capability and at least comprises a design data extraction module, a rule operation module and a design check module; the design data extraction module has the capability of identifying characteristic parameters and attribute information of accessories such as flanges and the like through flange gaskets; the rule operation module calculates and extracts standard data according to the connection form, and automatically selects the standard specifications of fasteners such as bolts, nuts and the like based on knowledge engineering; the design checking module is used for carrying out design checking on the length of the half-thread bolt and the strength of the bolt.
Furthermore, the rapid design tool subsystem realizes rapid generation of a simplified fastener model based on a super-copy function, automatically records the specification and parameter information of the fastener in the attributes of the simplified model, and simultaneously realizes detailed statistics and list generation of the fastener, and at least comprises a simplified fastener model drawing module and a simplified fastener detail statistics module; the fastener simplified model drawing module is combined with standard data to automatically generate a dot-dash line or a simplified three-dimensional solid model; the fastener detail counting module realizes the standard, specification, single weight, quantity and total weight statistics of the fasteners and displays the statistics in a list form.
A method for designing a pipe flange coupling fastener based on knowledge engineering, as shown in fig. 2, comprises the following steps:
s1, configuring a data template library according to specific ship products, wherein the data template library at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
s2, selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design;
s3, selecting a drawing form of the pipe flange fastener;
s4, acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model;
s5, acquiring the geometric parameters of the two corresponding flanges or accessories through the specific gasket;
s6, selecting corresponding data from the data template base;
s7, determining a proper nut specification through the nominal diameter information of the flange bolt hole, and pushing and calculating data according to preset related rules to obtain a theoretical length value of the bolt;
s8, combining the theoretical length value of the bolt obtained in S7 with the standard database in S1, and screening according to preset relevant rules to obtain standard fastener information meeting the theoretical value;
s9, storing the standard fastener information in the S8 into a dynamic data cache;
s10, drawing a simplified fastener model according to the standard fastener information obtained in S8 and the drawing form of the pipe flange fastener in S3;
s11, comparing and judging the cycle times and the number of flange pairs obtained in the S4, and if the cycle times are smaller than the number of the flange pairs, turning to S5 and executing the steps downwards in sequence; otherwise, executing S12;
and S12, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
Further, the three-dimensional pipeline system node model in S2 includes at least a total section pipeline system model node, a section model node, and a single pipeline node.
Further, the drawing form of the pipe flange fastener in S3 includes at least a dot-dash line and a simplified three-dimensional solid model.
Further, the geometric parameters of the flange or the accessory in S5 at least include material, thickness, bolt hole diameter and hole number.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of any of the methods described above.
After the installation and deployment of the pipe flange connecting fastener rapid design system based on knowledge engineering are finished, taking a diesel engine fuel pipeline system as an example, and specifically introducing relevant operations by combining a 3D expeience platform.
Step 1: fastener data template base resource allocation, wherein a knowledge resources-pipe resource set is defined under knowledge engineering resources and comprises fastener standard data and a drawing form template, and the drawing form template is shown in FIG. 3;
step 2: clicking the "fastener auto design" button in the toolbar, as shown in fig. 4, popping up an "insert object" dialog;
step 3: opening the structure tree, selecting a node of a diesel engine fuel pipeline system, and automatically displaying the diesel engine fuel pipeline system in a selected area of a dialog box of an insertion object and highlighting the diesel engine fuel pipeline system as shown in figure 5;
step 4: selecting a drawing mode of the pipe flange fastener, and selecting a dot-dash line drawing mode;
step 5: clicking the 'confirm' button in the 'insert object' dialog box, the system runs automatically. Generating a simplified fastener model schematic diagram through built-in rules, as shown in FIG. 6;
step 6: after the system finishes drawing all simplified models of flange fasteners under the selected nodes, fastener detail statistics is automatically realized and stored locally in an Excel table form, and a generated detail table is shown in fig. 7.
It should be noted that, according to the implementation requirement, each step/component described in the present application can be divided into more steps/components, and two or more steps/components or partial operations of the steps/components can be combined into new steps/components to achieve the purpose of the present invention.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A pipe flange connection fastener design system based on knowledge engineering is characterized by comprising a data template library management subsystem, a data extraction and operation subsystem and a rapid design tool subsystem; wherein the content of the first and second substances,
the database management subsystem is used for configuring a database according to specific ship products, wherein the database at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
the data extraction and operation subsystem is used for selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design; selecting a drawing form of the pipe flange fastener; acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model; acquiring geometric parameters of two corresponding flanges or accessories through a specific gasket; selecting corresponding data from a data template library; determining a proper nut specification through the nominal diameter information of the flange bolt hole, and carrying out data pushing and calculation according to a preset relevant rule to obtain a theoretical length value of the bolt; combining the theoretical length value of the bolt with a standard database, and screening according to preset related rules to obtain standard fastener information conforming to the theoretical value; storing the standard fastener information into a dynamic data cache;
the rapid design tool subsystem is used for drawing a simplified model of the fastener according to standard fastener information and a drawing form of the pipe flange fastener; comparing and judging the cycle times and the number of flange pairs, and if the cycle times is less than the number of flange pairs, re-acquiring the number of flange pairs corresponding to the specific gasket and sequentially executing downwards; otherwise, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
2. A knowledge engineering based pipe flange coupling fastener design system as claimed in claim 1 wherein the rapid design tool subsystem is a KE/CAD/PLM integrated system.
3. A system for rapid design of pipe flange coupling fasteners as recited in claim 1, wherein the database of the database management subsystem is a configurable standard database and a drawing format template, stored separately according to standard and template categories, maintained in real time in conjunction with standard releases and template updates.
4. A system for rapidly designing a pipe flange coupling fastener according to claim 1, wherein the data extraction and operation subsystem has an automatic fastener selection capability and at least comprises a design data extraction module, a rule operation module and a design check module; the design data extraction module has the capability of identifying characteristic parameters and attribute information of accessories such as flanges and the like through flange gaskets; the rule operation module calculates and extracts standard data according to the connection form, and automatically selects the standard specifications of fasteners such as bolts, nuts and the like based on knowledge engineering; the design checking module is used for carrying out design checking on the length of the half-thread bolt and the strength of the bolt.
5. The system for rapidly designing a pipe flange coupling fastener according to claim 1, wherein the rapid design tool subsystem realizes rapid generation of a simplified fastener model based on a super-copy function, automatically records fastener specifications and parameter information in attributes of the simplified model, and realizes fastener detail statistics and list generation at the same time, and at least comprises a simplified fastener model drawing module and a fastener detail statistics module; the fastener simplified model drawing module is combined with standard data to automatically generate a dot-dash line or a simplified three-dimensional solid model; the fastener detail counting module realizes the standard, specification, single weight, quantity and total weight statistics of the fasteners and displays the statistics in a list form.
6. A method applied to the knowledge engineering based pipe-flange coupling fastener design system of claim 1, comprising the steps of:
s1, configuring a data template library according to specific ship products, wherein the data template library at least comprises a standard database and a drawing form template library, and the standard database comprises standard numbers, specifications and weights of various fasteners; the drawing form library is used for storing different pipe flange drawing form templates;
s2, selecting a three-dimensional pipeline system node model to be subjected to pipe flange connection fastener design;
s3, selecting a drawing form of the pipe flange fastener;
s4, acquiring corresponding flange pairs through specific gaskets, and sequencing the gaskets in sequence according to the selected three-dimensional pipeline system node model;
s5, acquiring the geometric parameters of the two corresponding flanges or accessories through the specific gasket;
s6, selecting corresponding data from the data template base;
s7, determining a proper nut specification through the nominal diameter information of the flange bolt hole, and pushing and calculating data according to preset related rules to obtain a theoretical length value of the bolt;
s8, combining the theoretical length value of the bolt obtained in S7 with the standard database in S1, and screening according to preset relevant rules to obtain standard fastener information meeting the theoretical value;
s9, storing the standard fastener information in the S8 into a dynamic data cache;
s10, drawing a simplified fastener model according to the standard fastener information obtained in S8 and the drawing form of the pipe flange fastener in S3;
s11, comparing and judging the cycle times and the number of flange pairs obtained in the S4, and if the cycle times are smaller than the number of the flange pairs, turning to S5 and executing the steps downwards in sequence; otherwise, executing S12;
and S12, carrying out preset program built-in rule calculation on the standard fastener information, and calling the input information and the standard data according to a preset format to generate fastener detail content.
7. The method of claim 6 wherein the three-dimensional pipeline system node model in S2 includes at least a total section pipeline system model node, a section model node, and a single pipeline node.
8. The method of claim 6, wherein the rendered version of the pipe flange fastener in S3 includes at least a dash-dot line and a simplified three-dimensional solid model.
9. The method of claim 6, wherein the geometric parameters of the flange or the accessory in S5 at least include material, thickness, bolt hole diameter and hole number.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 6 to 9.
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