CN106126862A - Transmission tower finite element modeling method based on GID and ABAQUS - Google Patents
Transmission tower finite element modeling method based on GID and ABAQUS Download PDFInfo
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- CN106126862A CN106126862A CN201610570383.5A CN201610570383A CN106126862A CN 106126862 A CN106126862 A CN 106126862A CN 201610570383 A CN201610570383 A CN 201610570383A CN 106126862 A CN106126862 A CN 106126862A
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- angle steel
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- finite element
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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
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
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Abstract
The invention discloses a kind of transmission tower finite element modeling method based on GID and ABAQUS, comprise the following steps, angle steel is processed as rod member, the junction between angle steel is processed as rigid joint；Before utilizing finite element, the poster processing soft GID sets up the threedimensional model of transmission tower；Finite element software ABAQUS is utilized to carry out perfect to transmission tower threedimensional model；Calculate transmission tower each rod member safety coefficient under axle power effect.The present invention utilizes GID and ABAQUS to combine modeling, which solves the ABAQUS complexity when transmission tower modeling pre-treatment and the big problem of difficulty so that modeling work amount is substantially reduced, and strengthens accuracy and the reliability of model simultaneously.
Description
Technical field
The present invention relates to a kind of transmission tower finite element modeling method based on GID and ABAQUS, belong to transmission line of electricity dance
Shaft tower security diagnostics field under the conditions of Dong.
Background technology
Overhead transmission line is the key component of electrical network, has a little many, wide, the feature of circuit length, natural environment
Serious threat safe operation of power system changeable with complicated topographical conditions.Along with whole world extreme climate takes place frequently, harsh weather causes
Electrical network disaster is increasing, and ice damage causes huge loss to countries in the world electrical network.Ice covering on transmission lines is that electrical network destroys
Individual key factor, after wire icing, not only easily induction is waved, and its wire deicing generation jump also be easily caused broken string,
Fall the accident such as tower.Therefore grasp transmission tower and just seemed particularly significant by the structure stress situation under adverse weather conditions.
Power Transmission Tower Structure mainly by finite element software modeling analysis, finite element modeling be one extremely complex and
Time-consuming work, uses GID software and ABAQUS software to combine modeling and can save the plenty of time, it is proposed that a kind of modeling is fast
Speed and accurately method are extremely necessary.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of transmission tower finite element based on GID and ABAQUS
Modeling method.
In order to achieve the above object, the technical solution adopted in the present invention is:
Transmission tower finite element modeling method based on GID and ABAQUS, transmission tower is mainly made up of angle steel, logical between angle steel
Cross bolt and connecting plate be attached, comprise the following steps,
Angle steel is processed as rod member, the junction between angle steel is processed as rigid joint；
Before utilizing finite element, the poster processing soft GID sets up the threedimensional model of transmission tower: according to the actual size of transmission tower,
GID sets up the threedimensional model of each separate unit, all unit splicings are become complete transmission tower threedimensional model；
Finite element software ABAQUS is utilized to carry out perfect to transmission tower threedimensional model: first to be imported by transmission tower threedimensional model
ABAQUS；Then the material properties of angle steel is set, the sectional dimension of angle steel is set, the direction of angle steel is set, by material properties and
Sectional dimension gives each rod member, calculates the cross section vector of angle steel setting direction, and gives rod member by cross section vector；Finally will
Bottom transmission tower fixing, by being carried on transmission tower of all of for transmission tower stress equivalence, then carry out stress and strain model with
And structural analysis；
According to gridding information, material properties, each unit by force information and axial compression bar stability coefficient, calculate power transmission rod
Tower each rod member safety coefficient under axle power effect.
When setting up the threedimensional model of transmission tower unit, rod member to be checked and the number of rigid joint.
The material properties of angle steel includes the density of angle steel, elastic modelling quantity and Poisson's ratio.
The beneficial effect that the present invention is reached: 1, the present invention utilizes GID and ABAQUS to combine modeling, which solves
The ABAQUS complexity when transmission tower modeling pre-treatment and the big problem of difficulty so that modeling work amount is substantially reduced, with
Time strengthen accuracy and the reliability of model；2, invention also contemplates that rod member buckle in compression problem, this more conforms to reality
Situation, when structural stress analysis more accurately rationally.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Fig. 2 is transmission tower FEM (finite element) model schematic diagram.
Fig. 3 is transmission tower FEM (finite element) model partial schematic diagram.
Fig. 4 is to solve rod member flow chart of safety coefficient under axle power effect.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.Following example are only used for clearly illustrating the present invention
Technical scheme, and can not limit the scope of the invention with this.
The most common transmission tower is mainly made up of angle steel, is attached by bolt and connecting plate between angle steel.As
Shown in Fig. 1, transmission tower finite element modeling method based on GID and ABAQUS, specifically include following steps:
S1, it is elongate rod due to angle steel, therefore angle steel can be processed as rod member, and the junction between angle steel has bolt solid
Fixed, moment of flexure can be transmitted, therefore junction is processed as rigid joint.
S2, utilize finite element before the poster processing soft GID set up the threedimensional model of transmission tower.
According to the actual size of transmission tower, GID sets up the threedimensional model of each separate unit, in order to ensure each list
The accuracy of unit's threedimensional model, when setting up the threedimensional model of transmission tower unit, rod member to be checked and rigid joint
All unit splicings are finally become complete transmission tower threedimensional model by number, and concrete threedimensional model is as shown in Figures 2 and 3.
S3, finite element software ABAQUS is utilized to carry out perfect to transmission tower threedimensional model.
First transmission tower threedimensional model is imported ABAQUS；
Then arranging the material properties of angle steel, material properties includes the density of angle steel, elastic modelling quantity and Poisson's ratio, arranges angle steel
Sectional dimension, arranges the direction of angle steel, gives each rod member by material properties and sectional dimension, calculates angle steel setting direction
Cross section vector, and give rod member by cross section vector；
Finally by fixing bottom transmission tower, by being carried on transmission tower of all of for transmission tower stress equivalence, then carry out
Stress and strain model and structural analysis.The all of stress of transmission tower includes insulator, wire, the gold utensil active force to transmission tower
(such as wind load, quiet tension force, dynamic tension, gravity etc.) and the own load of transmission tower (such as gravity, wind load etc.)；Insulator,
Wire, gold utensil are equivalent to power to the active force of transmission tower and are carried in the junction of wire and transmission tower, the gravity of shaft tower own
Putting on unit, wind load presses the horizontal direction wind blast effect to transmission tower, is reduced on the rigid joint of windward side.
S4, as shown in Figure 4, according to gridding information, material properties, each unit by force information and axial compression bar stability
Coefficient, calculates transmission tower each rod member safety coefficient under axle power effect.
Said method utilizes GID and ABAQUS to combine modeling, which solves ABAQUS and models pre-treatment at transmission tower
Time complexity and the big problem of difficulty so that modeling work amount is substantially reduced, and strengthens the accuracy of model and reliable simultaneously
Property, also contemplating rod member buckle in compression problem simultaneously, this more conforms to practical situation, more accurately closes when structural stress analysis
Reason, can be widely applied in the finite element modeling of transmission tower, and under the conditions of being particularly well-suited to transmission line galloping, shaft tower is examined safely
Disconnected problem.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and deformation, these improve and deformation
Also should be regarded as protection scope of the present invention.
Claims (3)
1. transmission tower finite element modeling method based on GID and ABAQUS, transmission tower is mainly made up of angle steel, between angle steel
It is attached by bolt and connecting plate, it is characterised in that: comprise the following steps,
Angle steel is processed as rod member, the junction between angle steel is processed as rigid joint；
Before utilizing finite element, the poster processing soft GID sets up the threedimensional model of transmission tower: according to the actual size of transmission tower,
GID sets up the threedimensional model of each separate unit, all unit splicings are become complete transmission tower threedimensional model；
Finite element software ABAQUS is utilized to carry out perfect to transmission tower threedimensional model: first to be imported by transmission tower threedimensional model
ABAQUS；Then the material properties of angle steel is set, the sectional dimension of angle steel is set, the direction of angle steel is set, by material properties and
Sectional dimension gives each rod member, calculates the cross section vector of angle steel setting direction, and gives rod member by cross section vector；Finally will
Bottom transmission tower fixing, by being carried on transmission tower of all of for transmission tower stress equivalence, then carry out stress and strain model with
And structural analysis；
According to gridding information, material properties, each unit by force information and axial compression bar stability coefficient, calculate power transmission rod
Tower each rod member safety coefficient under axle power effect.
Transmission tower finite element modeling method based on GID and ABAQUS the most according to claim 1, it is characterised in that:
When setting up the threedimensional model of transmission tower unit, rod member to be checked and the number of rigid joint.
Transmission tower finite element modeling method based on GID and ABAQUS the most according to claim 1, it is characterised in that:
The material properties of angle steel includes the density of angle steel, elastic modelling quantity and Poisson's ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610570383.5A CN106126862A (en) | 2016-07-19 | 2016-07-19 | Transmission tower finite element modeling method based on GID and ABAQUS |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610570383.5A CN106126862A (en) | 2016-07-19 | 2016-07-19 | Transmission tower finite element modeling method based on GID and ABAQUS |
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| CN106126862A true CN106126862A (en) | 2016-11-16 |
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| CN201610570383.5A Pending CN106126862A (en) | 2016-07-19 | 2016-07-19 | Transmission tower finite element modeling method based on GID and ABAQUS |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727972A (en) * | 2018-06-26 | 2020-01-24 | 中国电力科学研究院有限公司 | Automatic power transmission tower modeling method and system based on building informatization model |
| CN110889192A (en) * | 2019-10-18 | 2020-03-17 | 北京道亨时代科技有限公司 | Three-dimensional model construction method for steel tube tower foundation |
Citations (2)
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|---|---|---|---|---|
| CN104298808A (en) * | 2014-08-26 | 2015-01-21 | 国家电网公司 | Stress calculation method for power transmission tower nonlinear flexible member |
| CN105354382A (en) * | 2015-11-05 | 2016-02-24 | 中国电力科学研究院 | Method for establishing finite element model of transmission line tower-line system |
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2016
- 2016-07-19 CN CN201610570383.5A patent/CN106126862A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298808A (en) * | 2014-08-26 | 2015-01-21 | 国家电网公司 | Stress calculation method for power transmission tower nonlinear flexible member |
| CN105354382A (en) * | 2015-11-05 | 2016-02-24 | 中国电力科学研究院 | Method for establishing finite element model of transmission line tower-line system |
Non-Patent Citations (2)
| Title |
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| AL-BERMANI F G A, KITIPORNCHAI S: "Nonlinear finite element analysis of latticed transmission towers", 《ENGINEERING STRUCTURES》 * |
| 刘力宇: "螺栓预紧力对输电杆塔强度的影响研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110727972A (en) * | 2018-06-26 | 2020-01-24 | 中国电力科学研究院有限公司 | Automatic power transmission tower modeling method and system based on building informatization model |
| CN110889192A (en) * | 2019-10-18 | 2020-03-17 | 北京道亨时代科技有限公司 | Three-dimensional model construction method for steel tube tower foundation |
| CN110889192B (en) * | 2019-10-18 | 2024-01-09 | 北京道亨软件股份有限公司 | Three-dimensional model construction method of steel pipe pole tower foundation |
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Application publication date: 20161116 |