CN113656921A - Three-dimensional hose pipe fitting generation method and device based on PDMS platform - Google Patents
Three-dimensional hose pipe fitting generation method and device based on PDMS platform Download PDFInfo
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- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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Abstract
The invention relates to a three-dimensional hose pipe fitting generation method based on a PDMS platform, which comprises the following steps: the element library updating process and the three-dimensional hose pipe creating process, because the inlet direction of the pipe in the PDMS is the outlet direction of the previous pipe, the position and direction of the inlet can be determined in the design module as known values. The positioning and orientation of the tube outlet can be determined from the offset and rotation of the orientation relative to the tube inlet, which can be determined by the tube designer. In order to realize the arbitrary positioning and connection of the hose pipe fitting in the three-dimensional space, more than three independent arc section changes are mathematically needed, so the method can generate the three-dimensional hose pipe fitting by using at least three arc intersection points as control points, can realize the generation of the real three-dimensional hose pipe fitting which can be arbitrarily positioned in the three-dimensional space and connected with an arbitrary inlet and an arbitrary outlet in PDMS software, fully fills the technical blank that the three-dimensional hose pipe fitting can not be positioned in the current PDMS software, and improves the pipeline design efficiency.
Description
Technical Field
The invention relates to the technical field of BIM pipeline design, in particular to a three-dimensional hose pipe fitting generation method and device based on a PDMS platform.
Background
PDMS (plant Design Management System), namely a three-dimensional layout Design Management system of a factory, is a software product of Aveva corporation in England, is a first-choice Design software system of large-scale and complex factory Design projects since the initiative, is widely used in the Design of industries such as nuclear power, chemical industry and thermal power plants in China, and also promotes the rapid development of BIM technology of each industrial industry.
In PDMS, before modeling, the pipeline design must be created by using its component library module, and then adding the pipeline class library, and then selecting and creating the pipe fittings in the design module, where the pipe fittings mainly include elbows, valves, flanges, tees, hoses, etc. The hose fitting is an important component in a connecting pipeline of modern industrial equipment, is mainly applied to occasions needing to absorb pipeline installation stress, compensate pipeline displacement, absorb vibration and the like, and is characterized in that the positions and directions of interfaces at two ends of the hose are uncertain in a three-dimensional space and can be any positions and directions, and the hose can move in the three-dimensional space.
The PDMS software has a high support degree for the pipe fitting with a fixed appearance shape and an access interface, and for the pipe fitting with a large change in the access interface and shape such as a hose and a shape adjustment required in design, a user needs to have a very high space imagination capability and secondary development capability. Therefore, how to realize the hose fitting which can be truly positioned and connected in the three-dimensional space is a problem to be solved urgently in modeling of the PDMS pipeline design.
Disclosure of Invention
The invention aims to solve at least one of the defects of the prior art and provides a method and a device for generating a three-dimensional hose fitting based on a PDMS platform.
In order to achieve the purpose, the invention adopts the following technical scheme:
specifically, a three-dimensional hose pipe fitting generation method based on a PDMS platform is provided, which comprises the following steps:
the process of updating the component library, including,
a gate element object is created in the element library,
element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
the GMSE element shape set is defined from the PTSE element point set,
creating an SCOM element object according to the element parameters and filling the element parameters,
adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation process, comprising,
a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above processes in the three-dimensional hose fitting creation process are repeated until all PCOM hose fitting objects are created,
and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
Further, the element library updating process specifically includes,
creating a CATE element object in the element library, automatically creating a DTSE data set, a PTSE point set, a GMSE shape set and an SCOM element object below the CATE element object, and setting the GTYPE attribute of the CATE element object as PCOM;
establishing element parameters of nominal diameter, connection mode and connection thickness under a CATE element object, and establishing design parameters according to data requirements listed by a designed PCOM hose fitting, wherein the design parameters comprise distances between each control point and an inlet and outlet, X coordinate offset, Y coordinate offset and Z coordinate offset.
Defining types for points established in a PTSE element point set, the defined types including a PTAX type, a PTPOS type and a PTCA type, and associating the location and direction of the points to defined element parameters and design parameters.
The set of element shapes is defined under GMSE according to the defined set of PTSE element points.
And creating an SCOM object according to the connection mode, the nominal diameter and the nominal outer diameter of the element, and respectively creating different nominal diameters to form a series of pipeline elements.
The created SCOM object is added to the tube level library and component descriptions and component materials are defined.
Further, the three-dimensional hose piece creation process specifically comprises,
a hose pipe fitting object PCOM is created in a pipeline branch BRAN in the pipeline grade of the three-dimensional hose element, the hose is generated according to the set element parameters and the default values of the design parameters,
modifying the inlet point of the hose piece PCOM to be connected to the outlet of the previous element of the pipe branch BRAN, if the latter element of the hose piece PCOM has been generated and positioned, by calculating the positioning and rotation of the inlet of the latter element relative to the inlet of the hose piece PCOM and setting the values to the defined design parameters of the outlet relative to the inlet, such as X-coordinate offset, Y-coordinate offset, Z-coordinate offset, coordinate angle rotation values, etc., the outlet of the hose piece PCOM is simultaneously changed and connected to the inlet of the latter element, if the latter element of the hose piece PCOM has not been generated and positioned, the latter element should be created and then the process should be performed,
the design parameters of the distance between each control point and the inlet of the hose pipe fitting PCOM, the distance between each control point and the outlet of the hose pipe fitting PCOM, the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the inlet of the hose pipe fitting PCOM are adjusted, the appearance shape of the hose pipe fitting PCOM is changed accordingly, and the steps are repeated until the three-dimensional space trend of the hose pipe fitting PCOM meets the design requirements.
Further, specifically, the number of the control points is set to be 3, that is, the number of the arc intersection points is set to be 3, and the adjustment process of the appearance shape of the corresponding hose fitting PCOM is specifically,
the design parameters of the numerical values of X coordinate offset, Y coordinate offset and Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM are adjusted by adjusting the distance between the first control point and the inlet of the hose pipe fitting PCOM, the distance between the second control point and the outlet of the hose pipe fitting PCOM, and the design parameters of the numerical values of the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM, so that the appearance shape of the hose pipe fitting PCOM is adjusted.
The invention also provides a three-dimensional hose pipe fitting generation system based on the PDMS platform, which comprises,
a component library update module for, in response to the component library update module,
a gate element object is created in the element library,
element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
the GMSE element shape set is defined from the PTSE element point set,
creating an SCOM element object according to the element parameters and filling the element parameters,
adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation module for,
a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above processes in the three-dimensional hose fitting creation process are repeated until all PCOM hose fitting objects are created,
and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
The invention also proposes a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
The invention has the beneficial effects that:
according to the three-dimensional hose pipe fitting generation method, at least three arc intersection points are used as control points to generate the three-dimensional hose pipe fitting, the fact that the three-dimensional hose pipe fitting which can be positioned randomly in a three-dimensional space and connected with an inlet and an outlet randomly can be generated in PDMS software can be achieved, the technical blank that the three-dimensional hose pipe fitting cannot be positioned randomly in the current PDMS software is fully filled, and the pipeline design efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the examples of the present invention, the drawings used in the description of the examples will be briefly introduced below, it is obvious that the drawings in the following description are only some examples of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort, wherein:
fig. 1 is a schematic structural principle diagram of a three-dimensional hose element in embodiment 1 of the method for generating a three-dimensional hose fitting based on a PDMS platform according to the present invention;
FIG. 2 is a flowchart illustrating a process of updating a component library according to the method for generating a three-dimensional hose based on a PDMS platform;
fig. 3 is a flowchart of a three-dimensional hose fitting creation process of the PDMS platform-based three-dimensional hose fitting generation method of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The same reference numbers will be used throughout the drawings to refer to the same or like parts.
Referring to fig. 1, in embodiment 1, the invention provides a method for generating a three-dimensional hose based on a PDMS platform, which includes the following steps:
the process of updating the component library, including,
step 201: a gate element object is created in the element library,
step 202: element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
step 203: defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
step 204: the GMSE element shape set is defined from the PTSE element point set,
step 205: creating an SCOM element object according to the element parameters and filling the element parameters,
step 206: adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation process, comprising,
step 301: a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
step 302: judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above procedures in the three-dimensional hose fitting creation process of steps 301 and 302 are repeated until all PCOM hose fitting objects are created,
step 303: and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
As a preferred embodiment of the present invention, the component library updating process specifically includes,
creating a CATE element object in the element library, automatically creating a DTSE data set, a PTSE point set, a GMSE shape set and an SCOM element object below the CATE element object, and setting the GTYPE attribute of the CATE element object as PCOM;
establishing element parameters of nominal diameter, connection mode and connection thickness under a CATE element object, and establishing design parameters according to data requirements listed by a designed PCOM hose fitting, wherein the design parameters comprise distances between each control point and an inlet and outlet, X coordinate offset, Y coordinate offset and Z coordinate offset.
Defining types for points established in a PTSE element point set, the defined types including a PTAX type, a PTPOS type and a PTCA type, and associating the location and direction of the points to defined element parameters and design parameters.
The set of element shapes is defined under GMSE according to the defined set of PTSE element points.
And creating an SCOM object according to the connection mode, the nominal diameter and the nominal outer diameter of the element, and respectively creating different nominal diameters to form a series of pipeline elements.
The created SCOM object is added to the tube level library and component descriptions and component materials are defined.
As a preferred embodiment of the present invention, the three-dimensional hose piece creating process specifically comprises,
a hose pipe fitting object PCOM is created in a pipeline branch BRAN in the pipeline grade of the three-dimensional hose element, the hose is generated according to the set element parameters and the default values of the design parameters,
modifying the inlet point of the hose piece PCOM to be connected to the outlet of the previous element of the pipe branch BRAN, if the latter element of the hose piece PCOM has been generated and positioned, by calculating the positioning and rotation of the inlet of the latter element relative to the inlet of the hose piece PCOM and setting the values to the defined design parameters of the outlet relative to the inlet, such as X-coordinate offset, Y-coordinate offset, Z-coordinate offset, coordinate angle rotation values, etc., the outlet of the hose piece PCOM is simultaneously changed and connected to the inlet of the latter element, if the latter element of the hose piece PCOM has not been generated and positioned, the latter element should be created and then the process should be performed,
the design parameters of the distance between each control point and the inlet of the hose pipe fitting PCOM, the distance between each control point and the outlet of the hose pipe fitting PCOM, the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the inlet of the hose pipe fitting PCOM are adjusted, the appearance shape of the hose pipe fitting PCOM is changed accordingly, and the steps are repeated until the three-dimensional space trend of the hose pipe fitting PCOM meets the design requirements.
As a preferred embodiment of the present invention, specifically, the number of the control points is set to 3, that is, the number of the arc intersection points is set to 3, and the adjustment process of the appearance shape of the corresponding hose pipe PCOM is, specifically,
the design parameters of the numerical values of X coordinate offset, Y coordinate offset and Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM are adjusted by adjusting the distance between the first control point and the inlet of the hose pipe fitting PCOM, the distance between the second control point and the outlet of the hose pipe fitting PCOM, and the design parameters of the numerical values of the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM, so that the appearance shape of the hose pipe fitting PCOM is adjusted.
Fig. 1 is a schematic view of a three-dimensional hose element, example 1, in the preferred form of a 3-segment circular arc, since it should be noted that fig. 1 is only for illustrative convenience to show the hose element in a planar mode, actually in a three-dimensional spatial arrangement.
The inlet direction of a pipe in PDMS is the outlet direction of the previous pipe, so both the inlet location and direction can be determined in the design module to be known values. The positioning and orientation of the tube outlet can be determined from the offset and rotation of the orientation relative to the tube inlet, which can be determined by the tube designer.
In order to realize that the hose pipe fitting can be randomly positioned and connected in a three-dimensional space, more than three independent arc sections are required to be changed mathematically, the first diagram is a hose structure schematic diagram defined by three arc sections, 101-111 are definition points in the spatial upper belt direction, and 112-118 are hose shape structures.
101 is the tube entry point, whose location and orientation can be directly specified.
102 is the start of a first arc segment, oriented in the same direction as 101, and positioned offset in the direction of 101 by a specified displacement value D1.
103 is the intersection point of the extension lines of the inlet and the outlet of the first segment of circular arc, the direction of the intersection point is the same as 101, and the intersection point is positioned to be offset by a specified displacement value D2 along the direction of 101, and the point serves as a control point for designing the appearance shape of the three-dimensional hose pipe fitting in the module.
104 is the end of the first arc, the common direction is from 103 to 106, and the distance D3 from 103 is equal to the distance between 103 and 102.
105 is the start of the second arc, pointing in the same direction as 106 from 103, and for simplicity of definition, this can be done by comparing the distance D5 between 106 and 104 with the distance D6 between 106 and 108, and if D5 is less than or equal to D6, then 105 and 104 coincide, and if D5 is greater than D6, then the distance D5-D6 is located from 104 to 106.
106 is the intersection of the exit and entrance extension lines of the second arc, the location of which is defined by the coordinate offset from 101, the direction using default, this point being the control point for designing the appearance of the three-dimensional hose fitting in the module.
107 is the end of the second arc, pointing in the common direction 109 from 106, and as in 105 for simplicity of definition, this can be done by comparing the distance D5 from 106 to 104 with the distance D6 from 106 to 108, where 107 and 108 coincide if D6 is less than or equal to D5, and where D6 is greater than D5, the location is offset from 108 to 106 by the distance D6-D5.
108 is the beginning of the third arc segment, the common direction is indicated by 106 to 109, and the distance from 109 is equal to the distance between 109 and 110.
109 is the intersection point of the extension lines of the inlet and outlet of the third section of circular arc, the direction of the intersection point is the same as 111, the intersection point is positioned to deviate a designated displacement value along the 111 direction, and the point is used as a control point for designing the appearance shape of the three-dimensional hose fitting in the module.
And 110 is the end point of the arc of the third segment, which has the same direction as 111 and is positioned to be shifted by a specified displacement value along the direction 111.
111 is the pipe exit point, whose positioning is given by the offset given coordinate value with respect to 101, and orientation is given by the rotation given angle with respect to 101, which is translated in the PDMS design module to the inlet direct acquisition setting with respect to the hose pipe according to the inlet positioning and orientation of the next pipe.
112 is a connection section of a first arc and a pipe fitting inlet, is used for defining a joint such as an inlet flange or a thread of a hose pipe fitting, and is a section of cylinder for connecting the two points 101 and 102.
113 is a first arc segment and is a segment of the annular tube connections 102 and 104.
114 is the connecting section of the first arc and the second arc, and is a section of cylinder connecting the two points 104 and 105.
115 is a second arc segment and is a segment of the annular tube connections 105 and 107.
The connecting section 116 is a connecting section of the second arc and the third arc, and is a section of cylinder connecting the two points 107 and 108.
117 is a third arc segment, which is a segment of the annular tube connections 108 and 110.
118 is a connecting section of a third section arc and a pipe fitting outlet, is used for defining a joint such as an outlet flange or a thread of a hose pipe fitting, and is a section of cylinder for connecting two points 110 and 111.
According to the definition of 101 to 118, the parameters to be provided include,
with respect to fig. 1, fig. 2 is a flow chart for building three-dimensional hose components in a component library module. Which comprises the following steps:
corresponding to step 201: create the CATE component object in the PDMS component library and automatically create DTSE data set, PTSE point set, GMSE shape set, SCOM component object below, with GTYPE attribute of CATE set to PCOM.
Corresponding to step 202: the method comprises the steps of establishing element parameter sets such as nominal path, connection mode and connection thickness under a CATE element object, and establishing design parameters such as the distance between a point 103 and an inlet 101, the X coordinate offset, the Y coordinate offset and the Z coordinate offset of a point 106 relative to the inlet 101, the distance between a point 109 and an outlet 111, and the X coordinate offset, the Y coordinate offset, the Z coordinate offset and the coordinate angle rotation value of the outlet 111 relative to the inlet 101 according to the data requirements listed in figure 1.
Corresponding to step 203: the 11 point definitions are established under PTSE according to 101-111 defined in FIG. 1, where 101, 102, 103 are PTAX types, 104-110 are PTPOS types, and 111 is a PTCA type, and the location and direction of the points are then correlated to the element parameters and design parameters defined by SO 2.
Corresponding to step 204: the points defined by 203 define 112-118 shapes under the GMSE.
Corresponding to step 205: and creating an SCOM object according to the connection mode, the nominal diameter and the nominal outer diameter of the element, and respectively creating different nominal diameters to form a series of pipeline elements.
Corresponding to step 206: SCOM created at 205 is added to the tube level library and component descriptions and component materials are defined.
Fig. 3 is a flow chart of building a three-dimensional hose fitting in a design module. Comprises the following steps:
corresponding to step 301: in the pipe branch BRAN of the pipe class containing three-dimensional hose elements in the design module, a hose pipe fitting object PCOM is created, and the hose is generated according to the element parameters set in step 202 and the default values of the design parameters.
Corresponding to step 302: modifying the connection of the inlet point 101 of the hose piece PCOM with the outlet of the preceding element of the pipe branch BRAN, if the latter element of the hose piece PCOM has been generated and positioned, the outlet 111 of the hose piece PCOM is simultaneously changed and connected to the inlet of the latter element by calculating the positioning and rotation of the latter element inlet with respect to the inlet 101 of the hose piece PCOM and setting the values to the design parameters of X-coordinate offset, Y-coordinate offset, Z-coordinate offset, coordinate angle rotation values, etc. of the outlet 111 defined in step 202 with respect to the inlet 101. If the latter element of the hose piece PCOM has not yet been produced and positioned, this step should be done after the one element has been created.
Corresponding to step 303: by adjusting design parameters such as the distance between the point 103 and the inlet 101 of the hose pipe fitting PCOM, the distance between the point 109 and the outlet 111 of the hose pipe fitting PCOM, the X coordinate offset, the Y coordinate offset, and the Z coordinate offset of the point 106 relative to the inlet 101 of the hose pipe fitting PCOM, the appearance shape of the hose pipe fitting PCOM changes accordingly, and the steps are repeated until the three-dimensional direction of the hose pipe fitting PCOM meets the design requirements.
In other embodiments, more circle segments and control points may continue to be added between points 106 and 109 to make the created three-dimensional hose fitting shape filtering smoother, but with increased modeling complexity.
The invention also provides a three-dimensional hose pipe fitting generation system based on the PDMS platform, which comprises,
a component library update module for, in response to the component library update module,
a gate element object is created in the element library,
element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
the GMSE element shape set is defined from the PTSE element point set,
creating an SCOM element object according to the element parameters and filling the element parameters,
adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation module for,
a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above processes in the three-dimensional hose fitting creation process are repeated until all PCOM hose fitting objects are created,
and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
The invention also proposes a computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium and can implement the steps of the above-described method embodiments when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
While the present invention has been described in considerable detail and with particular reference to a few illustrative embodiments thereof, it is not intended to be limited to any such details or embodiments or any particular embodiments, but it is to be construed as effectively covering the intended scope of the invention by providing a broad, potential interpretation of such claims in view of the prior art with reference to the appended claims. Furthermore, the foregoing describes the invention in terms of embodiments foreseen by the inventor for which an enabling description was available, notwithstanding that insubstantial modifications of the invention, not presently foreseen, may nonetheless represent equivalent modifications thereto.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (6)
1. The three-dimensional hose pipe fitting generation method based on the PDMS platform is characterized by comprising the following steps:
the process of updating the component library, including,
a gate element object is created in the element library,
element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
the GMSE element shape set is defined from the PTSE element point set,
creating an SCOM element object according to the element parameters and filling the element parameters,
adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation process, comprising,
a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above processes in the three-dimensional hose fitting creation process are repeated until all PCOM hose fitting objects are created,
and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
2. The method of claim 1, wherein the element library updating process comprises the steps of,
creating a CATE element object in the element library, automatically creating a DTSE data set, a PTSE point set, a GMSE shape set and an SCOM element object below the CATE element object, and setting the GTYPE attribute of the CATE element object as PCOM;
establishing element parameters of nominal diameter, connection mode and connection thickness under a CATE element object, and establishing design parameters according to data requirements listed by a designed PCOM hose fitting, wherein the design parameters comprise distances between each control point and an inlet and outlet, X coordinate offset, Y coordinate offset and Z coordinate offset;
defining types of points established in a PTSE element point set, wherein the defined types comprise a PTAX type, a PTPOS type and a PTCA type, and associating the positioning and the direction of the points to defined element parameters and design parameters;
defining a set of element shapes under the GMSE according to the defined set of PTSE element points;
creating an SCOM object according to the connection mode, the nominal diameter and the nominal outer diameter of the element, and respectively building different nominal diameters to form a series of pipeline elements;
the created SCOM object is added to the tube level library and component descriptions and component materials are defined.
3. The method of claim 2, wherein the three-dimensional hose pipe creating process comprises the steps of,
a hose pipe fitting object PCOM is created in a pipeline branch BRAN in the pipeline grade of the three-dimensional hose element, the hose is generated according to the set element parameters and the default values of the design parameters,
modifying the inlet point of the hose piece PCOM to be connected to the outlet of the previous element of the pipe branch BRAN, if the latter element of the hose piece PCOM has been generated and positioned, by calculating the positioning and rotation of the inlet of the latter element relative to the inlet of the hose piece PCOM and setting the values to the defined design parameters of the outlet relative to the inlet, such as X-coordinate offset, Y-coordinate offset, Z-coordinate offset, coordinate angle rotation values, etc., the outlet of the hose piece PCOM is simultaneously changed and connected to the inlet of the latter element, if the latter element of the hose piece PCOM has not been generated and positioned, the latter element should be created and then the process should be performed,
the design parameters of the distance between each control point and the inlet of the hose pipe fitting PCOM, the distance between each control point and the outlet of the hose pipe fitting PCOM, the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the inlet of the hose pipe fitting PCOM are adjusted, the appearance shape of the hose pipe fitting PCOM is changed accordingly, and the steps are repeated until the three-dimensional space trend of the hose pipe fitting PCOM meets the design requirements.
4. The method for generating a three-dimensional hose pipe fitting based on a PDMS platform according to claim 3, wherein, in particular, the number of the control points is set to 3, that is, the number of the arc intersections is set to 3, and the adjustment process of the appearance shape of the corresponding hose pipe fitting PCOM is further characterized in that,
the design parameters of the numerical values of X coordinate offset, Y coordinate offset and Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM are adjusted by adjusting the distance between the first control point and the inlet of the hose pipe fitting PCOM, the distance between the second control point and the outlet of the hose pipe fitting PCOM, and the design parameters of the numerical values of the X coordinate offset, the Y coordinate offset and the Z coordinate offset of the second control point relative to the inlet of the hose pipe fitting PCOM, so that the appearance shape of the hose pipe fitting PCOM is adjusted.
5. The three-dimensional hose pipe fitting generation system based on the PDMS platform is characterized by comprising,
a component library update module for, in response to the component library update module,
a gate element object is created in the element library,
element parameters are created under the gate element object along with the DTSE dataset definition to define design parameters,
defining a PTSE element point set according to element parameters and design parameters, wherein the PTSE element point set at least comprises three arc intersection points, the three arc intersection points are used as control points of the appearance shape of the three-dimensional hose pipe fitting,
the GMSE element shape set is defined from the PTSE element point set,
creating an SCOM element object according to the element parameters and filling the element parameters,
adding SCOM component objects into a pipeline level library;
a three-dimensional hose fitting creation module for,
a PCOM hose fitting object is selected and created in a pipeline grade library containing three-dimensional hose fittings,
judging whether the object is the first PCOM hose pipe fitting object or not, if not, connecting the inlet of the current PCOM hose pipe fitting object to the outlet of the previous PCOM hose pipe fitting object,
the above processes in the three-dimensional hose fitting creation process are repeated until all PCOM hose fitting objects are created,
and adjusting the positioning of the intersection points of at least three circular arcs of the PCOM hose fitting object so as to adjust the appearance shape of the generated PCOM hose fitting and finally meet the pipeline design requirement.
6. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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