CN102968542B - Application ANSYS software carries out the method for electric power pylon structure analysis - Google Patents
Application ANSYS software carries out the method for electric power pylon structure analysis Download PDFInfo
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- CN102968542B CN102968542B CN201210532868.7A CN201210532868A CN102968542B CN 102968542 B CN102968542 B CN 102968542B CN 201210532868 A CN201210532868 A CN 201210532868A CN 102968542 B CN102968542 B CN 102968542B
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Abstract
The present invention relates to a kind of method that the ANSYS of application software carries out electric power pylon structure analysis, be applied to static analysis and the dynamic analysis of electric power pylon, first described method completes the modeling of electric power pylon by self-control program, generate ANSYS software executable APDL command stream file, then ANSYS software is started on backstage, utilize and send the form of command stream to ANSYS software and complete structure analysis to electric power pylon, data result and graphic result are presented at the assigned address of self-control program the most at last.The present invention solves ANSYS software by the combination of self-control program and ANSYS software and uses when carrying out electric power pylon structure analysis the deficiency that difficulty is higher, specific aim is poor, make the structure analysis of electric power pylon more convenient, for technician provides a good analysis platform.
Description
Technical field
The present invention relates to a kind of analytical approach of electric power pylon structure, particularly relate to a kind of method that the ANSYS of application software carries out electric power pylon structure analysis.
Background technology
Electric power pylon is the Large-scale steel structure rack by angle steel or fastener for connection, keeps certain safe distance for making between wire, between wire and ground wire, between each circuit and above ground structure, plays an important role in electric power conveying.The quality of electric power pylon structural design directly has influence on the quality of electric power pylon, has influence on the reliability of whole piece transmission line of electricity.
Traditional electric power pylon structure analysis be technician according to structural mechanics principle, adopt permissible stress computing method to carry out mechanics property analysis to it, comprise static analysis and dynamic analysis.The method requires that technician gets everything ready certain foundation of physics, the modeling carrying out by root rod member to electric power pylon is needed when carrying out electric power pylon modeling, different operating mode load is loaded in structure and carries out calculation and Analysis of Static Force, extract maximum internal force analysis result again, and in Excel form, carry out the checking computations of structural elements; Finally will generate fluctuating wind speed time series to be converted into dynamic load and to carry out random vibration analysis in MATLAB, the structural analysis and computation that next individual of normal conditions completes a tower needs 20 working days, and workload is large and result of calculation is difficult to check and correction.
In addition, electric power pylon often presses desirable truss structural design in engineering reality, but along with the appearance of UHV transmission tower and narrow base steel tube tower, due to the impact of the factor such as to be rigidly connected of the application of steel tube tower ring flange, gusset plate, rod member is subject to very large wedge action at Nodes, therefore needs to analyze parasitic moment impact; For towering, flexible iron tower structure, the impact of geometrical non-linearity is also very important; Under wind load incentive action, iron tower structure vibratory response is very remarkable, and does not consider the change causing wind pulse because of the sudden change of steel tower quality and the area that keeps out the wind in related specifications, therefore needs to carry out random vibration analysis to steel tower.
Along with the development of computing machine, finite element analysis technology obtains have also been obtained significant progress, and finite element analysis software have also been obtained to be applied widely.Wherein, ANSYS software be merge structure, fluid, electric field, magnetic field, Analysis of The Acoustic Fields in one large-scale general finite element analysis software, can with most CAD software interface, realize data share and exchange.But because ANSYS software is the versatility software carrying out finite element analysis, its specific aim analyzed detailed programs is poor.In addition, the English interface of ANSYS complex software and loaded down with trivial details analytical procedure all cause very large obstacle to the technician being engaged in electric power pylon structure analysis design.
ANSYS software is except having comparatively perfect finite element analysis function, also provide multiple utility for user carries out secondary development simultaneously, the APDL language that wherein ANSYS software provides is a kind of Parametric designing interpreted language, the corresponding function in ANSYS software can be called by the APDL command stream file be made up of the order of APDL language compilation, thus automatically complete some conventional tasks.Utilize APDL order can realize the secondary development of ANSYS software for electric power pylon structure analysis, improve the professional and specific aim of ANSYS software in the structure analysis carrying out iron tower of power transmission line, thus improve the work efficiency of power system technology personnel at design analysis electric power pylon.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of method that the ANSYS of application software carries out electric power pylon structure analysis, the method can make ANSYS software carry out conveniently structure analysis to electric power pylon targetedly, to improve accuracy and the work efficiency of result of calculation.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
Application ANSYS software carries out the method for electric power pylon structure analysis, and described method is analyzed electric power pylon structure by the self-control program of Background scheduling ANSYS software, and specific analytical method comprises the following steps:
Step 1) electric power pylon modeling: first self-control program completes the modeling to electric power pylon, generates ANSYS software executable APDL command stream file;
Step 2) start ANSYS software: self-control program starts ANSYS software by the routing information and version information obtaining ANSYS software in operating system registration table, and hides the main window of ANSYS software;
Step 3) runs ANSYS software: self-control program sends command stream to ANSYS software, makes ANSYS software carry out finite element analysis to electric power pylon;
Step 4) Data Post: self-control program, according to the data result of ANSYS software, draws the rod member stress of electric power pylon and the data result of each segmentation place wind vibration coefficient, and data result is shown to the assigned address of self-control program;
Step 5) symplectic algorithm: the graphic result of ANSYS software is presented at the assigned address of self-control program by self-control program, or the data result according to self-control program computation draws graph of a correspondence result, and graphic result is shown to the assigned address of self-control program.
Further improvement of the present invention is: the modeling of described step 1) electric power pylon is that self-control program completes the modeling to electric power pylon according to steel tower data original and steel tower rod member specification file, specifically comprises the following steps:
Step 1.1) self-control program divides into groups according to all rod members of rod member link information to electric power pylon in steel tower data original;
Step 1.2) self-control program reads the information such as cross section corresponding to each rod member and material in steel tower rod member specification file;
Step 1.3) self-control program reads the node coordinate of each rod member in steel tower data original or the position calculation egress coordinate residing for node between 2, or obtains the coordinate of symmetrical nodes according to symmetric information;
Step 1.4) node coordinate to be filled out in APDL command stream corresponding position by self-control program;
Step 1.5) self-control program corrected by node x, y, z coordinate figure being to 0, thus draws the correct coordinates value of all nodes;
Step 1.6) self-control program by generate comprise rod member location, cross section, material information steel tower data convert file, steel tower model analysis file, read in wind speed file and wind time-histories loading calculation file combines to relevant APDL order the APDL command stream file being converted to ANSYS software and can directly performing.
Further improvement of the present invention is: described step 2) concrete steps that start the main window of the hiding ANSYS software in ANSYS software are:
Step 2.1) self-control program by searching main window handle and the graphical window handle of ANSYS software, its main window is hidden;
Step 2.2) whether self-control program utilizes the main window handle of Interruption to ANSYS software to find and whether main window is hidden and judged, then perform step 3) if the judgment is Yes, otherwise repeat step 2.1).
Further improvement of the present invention is: the particular content that in described step 3) operation ANSYS software, program of making by oneself sends command stream to ANSYS software is:
In static analysis, self-control program sends the command stream in the APDL command stream file of steel tower data convert file conversion to ANSYS software; In dynamic analysis, self-control program sends containing steel tower model analysis file, the command stream of reading in the APDL command stream file of wind speed file and wind time-histories loading calculation file to ANSYS.
Owing to have employed technique scheme, the technical progress acquired by the present invention is:
The present invention's application ANSYS software carries out electric power pylon structure analysis, improves the specific aim of ANSYS software to electric power pylon structure analysis, reduce the operation easier of ANSYS software in electric power pylon structure analysis by the combination of self-control program and ANSYS software.
Self-control program is utilized to complete the modeling of electric power pylon, and the location comprising rod member that will generate, the steel tower data convert file of cross section and material information, steel tower model analysis file, read in wind speed file and wind time-histories loading calculation file is directly converted to ANSYS software executable APDL command stream file, the electric power pylon structure analysis comprising static analysis and dynamic analysis is carried out by sending APDL command stream file to ANSYS software, eliminate the work by root input electric power pylon rod member information, save the modeling time of electric power pylon, simplify the operation with the order of ANSYS software interactive.
Utilize self-control program can on the basis of ANSYS software electric power pylon static analysis result, carry out the calculating of combined stress under various operating mode, and draw max calculation stress, and by information displaying such as the max calculation stress under every for electric power pylon root rod member various operating mode lower pulling force, pressure, calculation of Bending Moment stress and all operating modes in the table, make designer in a form, just can see the information of the every root rod member of electric power pylon clearly, substantially reduce divided working status computing time, improve designing quality and efficiency.
Utilize self-control program on the basis of ANSYS software electric power pylon dynamic analysis result, the acceleration-root-mean square of each segmentation place can be calculated, then calculate the wind vibration coefficient of each segmentation place of electric power pylon according to the definition of wind vibration coefficient.Self-control program, by the exchanges data and data processing with ANSYS, substantially increases precision and the efficiency of calculating.
Utilize self-control program directly can show the graphic result of ANSYS software, or corresponding graphic result can be drawn according to the data result of self-control program computation, and graphic result is shown to the assigned address of self-control program, make data result more visual and clear.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details:
Applying the method that ANSYS software carries out electric power pylon structure analysis is utilize self-control program backstage to enable the structure analysis that ANSYS software completes electric power pylon, and its process flow diagram as shown in Figure 1.In the present embodiment, adopt the method for the invention, application VS2010 works out self-control program, first modeling is carried out to iron tower of power transmission line by self-control program, and start ANSYS software on backstage, then by sending APDL command stream file to ANSYS software, structure analysis is carried out to iron tower of power transmission line, then carry out Data Post and symplectic algorithm according to ANSYS software analysis result, result is presented at the assigned address of self-control program the most at last, specifically comprises the following steps:
Step 1) electric power pylon modeling: self-control program completes the modeling to electric power pylon according to steel tower data original and steel tower rod member specification file, comprises the following steps:
A) self-control program is divided into groups according to all rod members of rod member link information to electric power pylon in steel tower data original;
B) self-control program reads the information such as cross section corresponding to each rod member and material in steel tower rod member specification file;
C) program of making by oneself reads the coordinate of two end nodes of each rod member or the position calculation egress coordinate figure residing for node between 2 in steel tower data original, and obtains the coordinate of symmetrical nodes according to symmetric information;
D) node coordinate is filled out position corresponding in APDL command stream by self-control program;
E) self-control program is corrected by node x, y, z coordinate figure being to 0, thus draws the correct coordinates value of all nodes;
F) self-control program by generate comprise rod member location, cross section, material information steel tower data convert file, steel tower model analysis file, read in wind speed file and wind time-histories loading calculation file and APDL order and combine the APDL command stream file being converted to ANSYS software and can directly performing, self-control program is according to the command stream do not sent in ANSYS software in the same way in above-mentioned corresponding APDL command stream file analyzing content in electric power pylon structure analysis.
Step 2) start ANSYS software: self-control program by HKEY_LOCAL_MACHINE in search operation system registry SYSTEM CurrentControlSet Control SessionManager the routing information of Environment acquisition of information ANSYS software, wherein, when the ANSYS software that computing machine is installed is 10.0 version, its registry key name is called ANSYS100_DIR, 12.0 versions are ANSYS120_DIR, utilize CreateProcess function by creating a new process initiation ANSYS software afterwards.Program of making by oneself subsequently starts timer, and setting-up time interval, such as can be set as 500 milliseconds.
While startup timer, self-control program looks also hides the main window of ANSYS software.The subwindow of self-control program by utilizing EnumChildWindowsProc function to enumerate ANSYS software, and find out main window handle and the graphical window handle of ANSYS software, after finding required handle, recycle ShowWindow function the main window of ANSYS software is hidden.After self-control program enters Interruption at every turn, whether the main window handle of ANSYS software to be found and whether main window is hidden and judged: if the main window handle of ANSYS software does not find or main window is not hidden, program of then making by oneself continues to search the main window of ANSYS software and the handle of graphical window, and hides the main window of ANSYS software; Otherwise proceed downwards.
Step 3) runs ANSYS software: after the main window handle of ANSYS software finds and main window is hidden, self-control program sends command stream to ANSYS software, carries out electric power pylon finite element analysis.Self-control program carries out electric power pylon finite element analysis by the mode sending command stream to ANSYS software, the particular content that program of wherein making by oneself sends command stream to ANSYS software is: in static analysis, and self-control program sends the command stream in the APDL command stream file of steel tower data convert file conversion to ANSYS software; In dynamic analysis, self-control program sends containing steel tower model analysis file, the command stream of reading in the APDL command stream file of wind speed file and wind time-histories loading calculation file to ANSYS.
Suppose that the complete order stream of electric power pylon finite element analysis is stored in SZ302-6.mac file by name, and under depositing in the ttsj file of E dish, then when self-control program to ANSYS software send "/INPUT; ' SZ302-6 ', ' mac ', ' E: ttsj '; 0 " order after, ANSYS software starts to perform the command stream in SZ302-6.mac file, simultaneously in the assigned address display calculating progress of self-control program, and final generation result of calculation file.
Step 4) Data Post: in the Data Post of static analysis, the pulling force of electric power pylon under various operating mode that self-control routine call ANSYS software is preserved by parsav order, pressure, the result of calculations such as moment of flexure, the corresponding situation of the rod member of combining unit number again, bar is calculated according to domestic related specifications, the strength and stability of beam, obtain the calculated stress of every root rod member, wherein component strength calculates and is divided into the Strength co-mputation of uniaxial force component and the Strength co-mputation of flexural member, component stability calculates and is divided into the stability Calculation of axis compression member and the stability Calculation of flexural member.
In addition, the starting point of rod member is numbered by self-control program simultaneously, terminal numbering, rod member specification, length, computational length, the turning radius, calculating slenderness ratio, allow the information such as slenderness ratio, stability factor, calculated stress, allowable stress all to calculate and be made into form and be presented at the assigned address of self-control program.If the calculated stress of rod member is greater than allowable stress, the row at this rod member place shows with light tone by program of then making by oneself, technician can be clear and intuitive the material information checking steel tower rod member, and can the related data of the electric power pylon structure analysis under certain operating mode be stored in txt file, be convenient to later analysis and use.
In the Data Post of dynamic analysis, the acceleration of each segmentation place representative point of electric power pylon that self-control routine call ANSYS software is preserved by parsav order, calculate acceleration root-mean-square value, then according to the quality of each segmentation of electric power pylon, highly, the data such as windward side area, contour area, Shape Coefficient and acceleration-root-mean square draw the wind vibration coefficient of each segmentation place of electric power pylon.
Step 5) symplectic algorithm: the graphic result that self-control program directly can show ANSYS software by sending order to ANSYS software, or draw graph of a correspondence result according to the data result of ANSYS software.
The graphical window of ANSYS software is set as that it specifies subwindow by using SetParent function by self-control program, uses GetWindowRect function and MoveWindow function to be presented in self-control program with suitable size by the graphical window of ANSYS software.Self-control program directly can show the graphic results such as moment of flexure cloud atlas, axle power cloud atlas, torsion cloud atlas, each first order mode static state display of model and animation display by sending related command to ANSYS software again in ANSYS software Graphics window.Such as by sending " LCZERO ", " LCASE, 1 ", " ETABLE, REFL " and " PLLS, FX1, FX2 ,-1 " order to ANSYS software, the axle power cloud atlas of electric power pylon can be drawn.
Self-control program, by sending the order such as " nsol " to ANSYS software, extracts each nodal displacement of electric power pylon and acceleration that ANSYS software calculates, according to above-mentioned data can draw out each nodal displacement and acceleration respectively with the curve of time variations.Again according to the acceleration root-mean-square value of different segmentation place representative point, draw out acceleration-root-mean square with electric power pylon segmentation change curve, according to wind load wind pulse numerical value, the curve that wind vibration coefficient changes with electric power pylon segmentation can be drawn out.
In addition, by self-control program also can realize figure amplification, reduce, rotate, show in proportion and be saved in assigned catalogue.
Claims (3)
1. apply the method that ANSYS software carries out electric power pylon structure analysis, it is characterized in that: described method is analyzed electric power pylon structure by the self-control program of Background scheduling ANSYS software, and specific analytical method comprises the following steps:
Step 1) electric power pylon modeling: first self-control program completes the modeling to electric power pylon, generates ANSYS software executable APDL command stream file;
Step 2) start ANSYS software: self-control program starts ANSYS software by the routing information and version information obtaining ANSYS software in operating system registration table, and hides the main window of ANSYS software;
Step 3) runs ANSYS software: self-control program sends command stream to ANSYS software, makes ANSYS software carry out finite element analysis to electric power pylon;
Step 4) Data Post: self-control program, according to the data result of ANSYS software, draws the rod member stress of electric power pylon and the data result of each segmentation place wind vibration coefficient, and data result is shown to the assigned address of self-control program;
Step 5) symplectic algorithm: the graphic result of ANSYS software is presented at the assigned address of self-control program by self-control program, or the data result according to self-control program computation draws graph of a correspondence result, and graphic result is shown to the assigned address of self-control program;
The modeling of described step 1) electric power pylon is that self-control program completes the modeling to electric power pylon according to steel tower data original and steel tower rod member specification file, specifically comprises the following steps:
Step 1.1) self-control program divides into groups according to all rod members of rod member link information to electric power pylon in steel tower data original;
Step 1.2) self-control program reads cross section corresponding to each rod member and material information in steel tower rod member specification file;
Step 1.3) self-control program reads the node coordinate of each rod member in steel tower data original or the position calculation egress coordinate residing for node between 2, or obtains the coordinate of symmetrical nodes according to symmetric information;
Step 1.4) node coordinate to be filled out in APDL command stream corresponding position by self-control program;
Step 1.5) self-control program corrected by node x, y, z coordinate figure being to 0, thus draws the correct coordinates value of all nodes;
Step 1.6) self-control program by generate comprise rod member location, cross section, material information steel tower data convert file, steel tower model analysis file, read in wind speed file and wind time-histories loading calculation file combines to relevant APDL order the APDL command stream file being converted to ANSYS software and can directly performing.
2. application ANSYS software according to claim 1 carries out the method for electric power pylon structure analysis, it is characterized in that: described step 2) concrete steps that start the main window of the hiding ANSYS software in ANSYS software are:
Step 2.1) self-control program by searching main window handle and the graphical window handle of ANSYS software, its main window is hidden;
Step 2.2) whether self-control program utilizes the main window handle of Interruption to ANSYS software to find and whether main window is hidden and judged, then perform step 3) if the judgment is Yes, otherwise repeat step 2.1).
3. application ANSYS software according to claim 1 carries out the method for electric power pylon structure analysis, it is characterized in that: the particular content that in described step 3) operation ANSYS software, program of making by oneself sends command stream to ANSYS software is:
In static analysis, self-control program sends the command stream in the APDL command stream file of steel tower data convert file conversion to ANSYS software; In dynamic analysis, self-control program sends containing steel tower model analysis file, the command stream of reading in the APDL command stream file of wind speed file and wind time-histories loading calculation file to ANSYS.
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| CN107229765A (en) * | 2014-08-26 | 2017-10-03 | 江苏省电力公司南通供电公司 | Analysis calculates the electric power pylon rod member calculation method for stress of every rod member stress of steel tower |
| CN105069189A (en) * | 2014-08-26 | 2015-11-18 | 国家电网公司 | Stress calculation method for nonlinear flexible member close to actual power transmission iron tower structure |
| CN105975697B (en) * | 2016-05-09 | 2021-03-02 | 中国电力科学研究院 | Method and device for determining windward area of power transmission tower |
| CN106940743B (en) * | 2017-03-10 | 2020-08-11 | 中广核工程有限公司 | Ventilating duct mechanical analysis method and system |
| CN107220397A (en) * | 2017-03-22 | 2017-09-29 | 沈阳工业大学 | The method that the aluminium alloy extruded industrial analysis of variable cross-section is carried out using ANSYS softwares |
| CN107063530B (en) * | 2017-04-10 | 2019-05-24 | 华北电力大学（保定） | The measurement method of electric power pylon main material angle steel parasitic moment |
| CN107451368A (en) * | 2017-08-08 | 2017-12-08 | 大连交通大学 | Weld fatigue lifetime estimation method based on ANSYS platforms |
| CN109344430A (en) * | 2018-08-24 | 2019-02-15 | 国网山东省电力公司电力科学研究院 | Transmission Tower state evaluating method |
| CN109116753A (en) * | 2018-09-10 | 2019-01-01 | 国网江西省电力有限公司电力科学研究院 | A kind of applying method of high-voltage power transmission tower space rigid finite element model wind load |
| CN109918786B (en) * | 2019-03-07 | 2023-03-24 | 龙源（北京）风电工程设计咨询有限公司 | Automatic analysis system and method for offshore wind turbine foundation structure |
| CN111008417B (en) * | 2019-11-12 | 2022-11-25 | 中铁大桥勘测设计院集团有限公司 | Wind-induced vibration analysis method for continuous structure with large slenderness ratio |
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