CN116357899A - Digital twin safety evaluation system and method for ultra-large caliber flexible pipeline - Google Patents
Digital twin safety evaluation system and method for ultra-large caliber flexible pipeline Download PDFInfo
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- CN116357899A CN116357899A CN202310208447.7A CN202310208447A CN116357899A CN 116357899 A CN116357899 A CN 116357899A CN 202310208447 A CN202310208447 A CN 202310208447A CN 116357899 A CN116357899 A CN 116357899A
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- 238000011156 evaluation Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 30
- 238000004364 calculation method Methods 0.000 claims abstract description 14
- 239000002689 soil Substances 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000012800 visualization Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008447 perception Effects 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000036541 health Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/14—Pipes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Pipeline Systems (AREA)
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Abstract
The invention provides a digital twin safety evaluation system and method for an ultra-large caliber flexible pipeline, which can realize real-time and rapid calculation and analysis of the whole and partial stress and deformation conditions of the pipeline by adopting a small number of sensors, and the analysis result can be directly used for long-term unmanned automatic monitoring and early warning of the pipeline and provides scientific basic data for the safety operation evaluation of the pipeline. The method has the advantages of simple equipment, no external power supply, low manufacturing cost, simple integral installation and operation of the equipment and capability of realizing large-scale monitoring of the pipeline.
Description
Technical Field
The invention relates to the technical field of automatic monitoring of pipelines, in particular to a digital twin safety evaluation system and method for an ultra-large caliber flexible pipeline.
Background
The ultra-large caliber flexible pipeline plays an important role in relieving the increasing pollution discharge pressure of large cities, but the pipeline is particularly easy to damage under the action of soil and upper load due to the small rigidity of resisting deformation, and the internal force and deformation condition of the large caliber flexible pipeline are monitored in real time, so that scientific data support is provided for the safety evaluation of the pipeline, and the pipeline is becoming an urgent requirement for urban municipal departments.
Disclosure of Invention
Aiming at the difficult problem of health monitoring of the ultra-large-caliber flexible pipeline, the invention provides a digital twin safety evaluation system and method for the ultra-large-caliber flexible pipeline, which meet the internal force and deformation monitoring requirements of the ultra-large-caliber flexible pipeline.
In order to achieve the above object, according to one aspect of the present invention, there is provided an ultra-large caliber flexible pipeline safety evaluation system comprising
(1) Edge perception device:
the soil pressure gauge is used for measuring the soil pressure born by the pipeline wall;
the surface strain gauge is used for measuring the surface strain value of the pipeline wall after being stressed;
the GNSS satellite displacement instrument is used for measuring sedimentation displacement of the pipeline;
the wireless acquisition and transmission unit is used for acquiring the sensor data and wirelessly transmitting the sensor data;
(2) The server control system:
cloud platform for receiving monitoring transmitted by soil pressure gauge, surface strain gauge and GNSS receiver
Measuring data and performing distributed storage;
the fog end platform is used for subscribing monitoring data stored in the cloud, inputting a finite element model of the pipeline for stress calculation, obtaining internal force and deformation conditions born by the whole monitoring pipeline, and establishing a safety evaluation and early warning criterion;
the webpage end is used for carrying out visualization of monitoring data and a digital twin model, and display control of safety evaluation and early warning.
Further, the soil pressure gauge and the surface strain gauge are adhered to the outer wall of the pipeline through epoxy resin glue.
Further, the device also comprises a base, a protection pipe, a support rod and two wind-collecting ropes, wherein the base is fixed at the top of the pipeline and is connected with the support rod, and the protection pipe is sleeved on the support pipe and used for isolating soil bodies and the support rod.
Further, the GNSS receiver comprises a ground station, the ground station is connected with the supporting rods, the ground station is provided with a photovoltaic plate, the photovoltaic plate is used for supplying power to the ground station, and the control device is arranged on one side of the ground station.
Furthermore, the server control system adopts python programming language, combines commercial finite element software ANSYS parameterized programming language APDL, creates a variable parameter controlled pipeline finite element model, and realizes the calculation of monitoring data of an autonomous receiving sensor.
On the other hand, the invention also provides a safety evaluation method of the ultra-large caliber flexible pipeline based on the system, which comprises the following steps:
s1, establishing a finite element model of a pipeline by adopting an APDL program in ANSYS software;
s2, inputting monitoring data transmitted by the soil pressure gauge, the surface strain gauge and the GNSS receiver into a finite element model of the pipeline;
s3, extracting strain data of the monitoring point in the calculation result and comparing the strain data with the surface strain gauge data, if the error exceeds the limit, executing the step S4, and if the error is within the controllable range, executing the step S5;
s4, re-adjusting the model for re-calculation;
s5, the system automatically compares whether the strain value of other parts of the inspection model exceeds the early warning value, if so, the step S6 is executed, and if not, the step S7 is executed;
s6, automatically alarming to prompt that the pipeline at the position is accepted more;
s7, returning to the step S1 again to execute the flow.
The invention has the following beneficial effects and advances:
the invention provides a digital twin safety evaluation system and method for an ultra-large caliber flexible pipeline, which can realize real-time and rapid calculation and analysis of the whole and partial stress and deformation conditions of the pipeline by adopting a small number of sensors, and the analysis result can be directly used for long-term unmanned automatic monitoring and early warning of the pipeline and provides scientific basic data for pipeline safety evaluation. The method has the advantages of simple equipment, no external power supply, low manufacturing cost, simple integral installation and operation of the equipment and capability of realizing large-scale monitoring of the pipeline.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a digital twin safety evaluation system for ultra-large caliber flexible pipelines according to a preferred embodiment of the invention.
FIG. 2 is a flow chart of a digital twin safety evaluation method for ultra-large caliber flexible pipelines according to a preferred embodiment of the invention.
In the figure: 1. a cable rope; 2. a soil pressure gauge; 3. a surface strain gauge; 4. a base; 5. a protective tube; 6. a support rod; 7. a ground station; 8. a server; 9 photovoltaic panels; 10. a GNSS receiver.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, reference is made to "some embodiments" which describe a subset of all possible embodiments, but it is to be understood that "some embodiments" can be the same subset or a different subset of all possible embodiments and can be combined with each other without conflict.
If a similar description of "first/second" appears in the application document, the following description is added, in which the terms "first/second/third" are used to distinguish similar objects from each other, and do not represent a specific ordering of the objects, it being understood that "first/second/third" may be interchanged with a specific order or precedence, as allowed, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of the present application only and is not intended to be limiting of the present application.
The digital twin safety evaluation system and method for the ultra-large caliber flexible pipeline according to the embodiment of the invention are described below with reference to the accompanying drawings, and the digital twin safety evaluation system for the ultra-large caliber flexible pipeline according to the embodiment of the invention is described below with reference to the accompanying drawings.
Referring to fig. 1, the digital twin safety evaluation system for the ultra-large caliber flexible pipeline of the invention comprises: the cable rope 1, the surface strain gauge 3 of the earth pressure gauge 2, the base 4, the protection tube 5, the support rod 6, the ground station 7, the case 8, the photovoltaic panel 9 and the GNSS receiver 10.
The strain gauge and the soil pressure gauge are respectively stuck on the outer wall of the pipeline through epoxy resin glue, the supporting rod is arranged at the top of the pipeline wall, data of the strain gauge and the soil pressure gauge are attached to the supporting rod through wires and extend to a case of the ground station, the protection pipe is sleeved outside the supporting rod, the case and the photovoltaic panel are arranged on the ground station, the GNSS equipment is arranged at the top of the supporting rod, and the data of the GNSS equipment extend to the case through wires. The photovoltaic board supplies power for all equipment, the soil pressure gauge, the surface strain gauge and GNSS data are transmitted to the health monitoring platform in a radio mode through the chassis, the server control system adopts python programming language, and a pipeline finite element model controlled by variable parameters is created by combining commercial finite element software ANSYS parameterized programming language APDL, so that autonomous receiving sensor monitoring data calculation is realized.
In a specific embodiment, the server control system comprises a cloud platform for receiving and distributed storing monitoring data transmitted by the soil pressure gauge, the surface strain gauge and the GNSS receiver. The fog end platform is used for subscribing monitoring data stored in the cloud, inputting a finite element model of the pipeline for stress calculation, obtaining internal force and deformation conditions born by the whole monitoring pipeline, and establishing a safety evaluation and early warning criterion; the webpage end is used for carrying out visualization of monitoring data and a digital twin model, and display control of safety evaluation and early warning.
Fig. 2 is a flow chart of a digital twin safety evaluation method for ultra-large caliber flexible pipelines, as shown in fig. 2, comprising the following steps:
s1, establishing a finite element model of a pipeline by adopting an APDL program in ANSYS software;
s2, inputting monitoring data transmitted by the soil pressure gauge, the surface strain gauge and the GNSS receiver into a finite element model of the pipeline;
s3, extracting strain data of the monitoring point in the calculation result and comparing the strain data with the surface strain gauge data, if the error exceeds the limit, executing the step S4, and if the error is within the controllable range, executing the step S5;
s4, re-adjusting the model for re-calculation;
s5, the system automatically compares whether the strain value of other parts of the inspection model exceeds the early warning value, if so, the step S6 is executed, and if not, the step S7 is executed;
s6, automatically alarming to prompt that the pipeline at the position is accepted more;
s7, returning to the step S1 again to execute the flow.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The digital twin safety evaluation system for the ultra-large caliber flexible pipeline is characterized by comprising
(1) Edge perception device:
the soil pressure gauge is used for measuring the soil pressure born by the pipeline wall;
the surface strain gauge is used for measuring the surface strain value of the pipeline wall after being stressed;
the GNSS satellite displacement instrument is used for measuring sedimentation displacement of the pipeline;
the wireless acquisition and transmission unit is used for acquiring the sensor data and wirelessly transmitting the sensor data;
(2) The server control system:
the cloud platform is used for receiving the monitoring data transmitted by the soil pressure gauge, the surface strain gauge and the GNSS receiver and storing the monitoring data in a distributed mode;
the fog end platform is used for subscribing monitoring data stored in the cloud, inputting a finite element model of the pipeline for stress calculation, obtaining internal force and deformation conditions born by the whole monitoring pipeline, and establishing a safety evaluation and early warning criterion;
the webpage end is used for carrying out visualization of monitoring data and a digital twin model, and display control of safety evaluation and early warning.
2. The ultra-large caliber flexible pipeline safety evaluation system according to claim 1, wherein the soil pressure gauge and the surface strain gauge are adhered to the outer wall of the pipeline through epoxy resin glue.
3. The ultra-large caliber flexible pipeline safety evaluation system according to claim 2, further comprising a base, two protection pipes, two support rods and two wind-collecting ropes, wherein the base is fixed on the top of the pipeline and connected with the support rods, and the protection pipes are sleeved on the support rods and used for isolating soil bodies from the support rods.
4. A system for evaluating the safety of a very large diameter flexible pipeline as defined in claim 3, further comprising a GNSS receiver further comprising a ground station, said ground station being connected to the support bar, the ground station being provided with a photovoltaic panel for supplying power to the ground station, said control means being mounted on one side of the ground station.
5. The ultra-large caliber flexible pipeline safety evaluation system according to claim 1, wherein the server control system adopts python programming language, and combines commercial finite element software ANSYS parameterized programming language APDL to create a variable parameter controlled pipeline finite element model so as to realize autonomous receiving sensor monitoring data calculation.
6. A digital twin safety evaluation method for ultra-large caliber flexible pipelines based on the system of claims 1 to 5, which is characterized by comprising the following steps:
s1, establishing a finite element model of a pipeline by adopting an APDL program in ANSYS software;
s2, inputting monitoring data transmitted by the soil pressure gauge, the surface strain gauge and the GNSS receiver into a finite element model of the pipeline;
s3, extracting strain data of monitoring points in the calculation result and comparing the strain data with surface strain gauge data, if the error exceeds the limit, executing a step S4, if the error is in a controllable range, establishing a digital twin model, and executing a step S5;
s4, re-adjusting the model for re-calculation;
s5, the system automatically checks whether all grid cell stress values of the digital twin model exceed the early warning value, if yes, the step S6 is executed, and if not, the step S7 is executed;
s6, automatically alarming to prompt that the pipeline at the position is stressed greatly;
s7, returning to the step S1 again to execute the flow.
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| CN202310208447.7A CN116357899A (en) | 2023-03-06 | 2023-03-06 | Digital twin safety evaluation system and method for ultra-large caliber flexible pipeline |
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| CN202310208447.7A CN116357899A (en) | 2023-03-06 | 2023-03-06 | Digital twin safety evaluation system and method for ultra-large caliber flexible pipeline |
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| US20180275100A1 (en) * | 2017-03-21 | 2018-09-27 | General Electric Company | Predictive integrity analysis |
| CN207779468U (en) * | 2018-02-28 | 2018-08-28 | 湖南联智桥隧技术有限公司 | Integral type slope monitoring stake based on Beidou satellite navigation system |
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