CN101923598A - Optimization method of parametric modeling of gliding transfer model of building based on VB - Google Patents

Abstract

The invention discloses an optimization method of parametric modeling of a gliding transfer model of a building based on VB, which relates to a computer modeling technology of a building. Graphical interfaces are used for inputting relevant building parameters, and a computer is used for realizing parametric modeling of the building and optimizing the parametric model. By using the VB as development software, the invention has the advantages of visual programming, small memory utilization, high code execution speed, strong compatibility and the like and can quickly generate executable programs. Compared with the prior art, in the invention, each member of the transferred building forms parametric setting, and bracket types can also be selected, thus the invention has wide adaptability. By using the visual input and output interfaces of the VB and calling the APDL modeling analysis language of ANSYS, relevant data is exported into the specified files finally. The method greatly reduces the using difficulty of the ANSYS, is widely object-oriented, and provides a good design platform for general construction technicians.

Description

Optimization method based on the buildings slip migration models parametric modeling of VB

Technical field

The present invention relates to buildings microcomputer modelling technology, particularly relate to the parametrization and the optimization method of frame structure building migration models.

Background technology

Because the moving building entirely technology has that construction costs is low, the duration is short, little to people's live and work influence, can reduce the advantages such as pollution of building waste simultaneously to environment, obtain remarkable economical technical benefits, social benefit, environmental benefit, therefore obtained fast development at home and abroad.

Yet present design and construction mainly depend on experience, lack theoretical foundation system, science.There are a lot of limitation in domestic research to building moving.1) domestic analysis software only carries out modeling analysis at a certain concrete buildings mostly, does not have versatility, and redevelopment property is poor; 2) domestic carriage to model, diagonal brace, members such as batter post are confined to local optimum more, can not consider the combined influence of member; 3) there is big difficulty in existing analytical approach to the analysis of the force-bearing situation of buildings the unknown, is difficult to make corresponding change according to the difference of track unevenness; 4) existing analysis software all needs the professional to operate, and one technology workmen is difficult to understand its process.5) buildings of existing research spininess to realizing in the mode of under the beam that gets on the right track, laying roller moving, yet there is shortcoming in this migration, and slide to realize that with hydraulic cylinder the mode of migration can well avoid the shortcoming of kind mode, but domestic to this mode migration research seldom.

Summary of the invention

Based on above-mentioned prior art, the present invention proposes a kind of optimization method of the buildings slip migration models parametric modeling based on VB, utilize graphic interface and computer processing mode to realize the optimal design of the parametric modeling of building moving model.

The optimization method of buildings slip migration models parametric modeling based on VB proposed by the invention, utilize graphical interfaces to be correlated with and build the input of parameter, utilize the parametric modeling of computer realization buildings and parameterized model is optimized processing, this method may further comprise the steps:

Carry out parametrization input, Bracket Type selection, model optimization, result's output by graphic interface;

With the parameterized model program that is used to simulate slip migration buildings force-bearing situation of the APDL language compilation of ANSYS, load solver;

Call the parameterization macro file and the ANSYS batch program that produce by the interface input parameter.The batch program content comprises: the choosing and defining of unit, and the foundation of parameterized model, load loads, the applying of constraint, and find the solution setting, working procedure is found the solution, and obtains operation result, and promptly each jacking position is by the statics solving result after whole constraints;

Extract the component with each support reaction identical of making a concerted effort of top lift in the above-mentioned operation result with gravity direction, simultaneously according to existing information (road roughness, the hydraulic cylinder margin of safety, road surface length, the hydraulic cylinder number, number of tracks, operation road program, road program comprises step: hydraulic cylinder number and relative position relation according to input are determined every group of form that produces data, guarantee that jacking road surface that cylinder is walked is same road surface on one group of track; Determine that according to random point length and step pitch length road surface, slope upper integral counts out; Determine the number of random road surface upslope according to displacement and random point length; According to minimum point and the definite scope that produces data of peak numerical value, the result of operation is stored as array;

Call array, it is handled, step is: the changing value that at first road roughness in the array is converted into top lift, then calculate next approximate value of top lift constantly with the top lift changing value that obtains according to a last moment hydraulic cylinder top lift value, allow the top lift that obtains compare then with buildings gravity, the difference that obtains is on average assigned on each jacking cylinder, calculate the top lift that next will apply constantly at last, it is converted into the top lift of one group of group, compose and give the jacking fulcrum, carry out the computing of transient state dynamics; Each load step result that output is found the solution, for example: read the result in first load step, show the displacement cloud atlas of Y direction; Read the result in second load step; The displacement cloud atlas that shows the Y direction; The axle pressure output form is defined as form; The output form of moment of flexure is defined as form; The operator can according to circumstances choose arbitrary substep and carry out next step optimization;

Write optimizer, substep number, state variable, optimization variable, target variable and the variation range of need optimization all are made as parameter;

Input needs state variable, optimization variable, the target variable that is provided with and its scope is set on the interface, calls optimizer with VB, finds the solution;

The result is optimized in output, optimized member parameter is composed to the parameter in the program, the call number road surface generates the result, after suitably handling, be converted into the top lift of jacking cylinder, transient state Dynamic solving mode is set, respectively each substep is carried out derivation, derivation comprises: 1. the initial value of design variable, carry out derivation; 2. construct objective function 3. definition status variable parameters; 4. generate and optimize Study document; 5. enter optimized processor and designated analysis file; 6. define the scope of design variable; 7. state variable is optimized in definition; 8. be provided with that one is an objective function in quality, stress, moment of flexure, shearing, axial force, the strain; 9. storage optimization database; 10 specify optimization method, and operation optimizer, and output optimization result comprise: list the optimal design sequence: list all implementation sequences, list the quality iterative process, list the maximum stress iterative process, the iterative process of display interface size.

The result is selectively outputed on the word template, make a decision foundation for construction technical staff.

Compared with prior art, the present invention adopts VB as developing software, and has that programming is directly perceived, committed memory is little, run time version speed fast, compatible strong, can generate advantage such as executable program fast; Migration buildings each member all forms the parametrization setting and also can select Bracket Type among the present invention, and applicability is wide; By the visual input and output of VB interface,, at last related data is exported in the specified file by calling the APDL modeling analysis language of ANSYS.This method has reduced the use difficulty of ANSYS to a great extent, and object-oriented is wider, for one construction technical staff provides good design platform.The present invention can be optimized a plurality of parameters, also can select different objective functions, is optimized; The present invention can not only carry out digitized simulation to the migration buildings before optimizing, and can carry out the digitizing road surface to the migration buildings after optimizing and can simulate, and has increased selectivity and comparative; The present invention has write the word template according to buildings standard and criterion of failure, can be the technician reference frame is provided.

Description of drawings

Fig. 1 is the optimization method process flow diagram of the buildings slip migration models parametric modeling based on VB of the present invention.

Fig. 2 is the graphic interface figure of the optimization method of the buildings slip migration models parametric modeling based on VB of the present invention.

Embodiment

The hardware environment that the present invention is used to implement is the pentium-44.2G computing machine, the 2G internal memory, and 512 video cards, the environment of operation are ANSYS 11.0, Microsoft Visual Basic 6.0 and Windows XP system.ANSYS software is that merge structure, fluid, electric field, magnetic field, sound field are analyzed (the ANSYS Parametric Design Language in the finite element analysis software ANSYS ParametricDesign of one Language.

As shown in Figure 1, be flow process of the present invention, this flow process may further comprise the steps:

Step 101, operation VB interface;

Step 102 is carried out the parametrization input by graphic interface, comprises the basic physical dimension of building model, material, unit and load and finds the solution parameter, room sum, changing load numerical value, damping value.

Specifically illustrate, input parameter comprises that length between first floor height, intermediate floor height, headroom height, one room length, middle room, width, corridor are wide, the density of post, beam, floor, carriage, batter post, elastic modulus, Poisson ratio, size (comprise beam, the sectional dimension of post, and the thickness of floor) and the position of batter post;

Step 103 generates the APDL code automatically to above-mentioned input parameter;

Step 104, select Bracket Type, write different programs at different Bracket Types: the present invention has write nine kinds of Bracket Types, its difference is the distribution situation of diagonal brace on the carriage, its cardinal principle pattern comprises: whether diagonal brace is arranged, a few row's diagonal braces are arranged, and the connection of diagonal brace is a parallel mode, and the triangle mode still is the quadrilateral mode;

Move corresponding program of each Bracket Type and parameterization macro file, the parameterization macro file is meant the parametric t xt document that is produced by the input of step 102 parametrization, and operation result is the migration building model;

Step 105 is called the ANSYS batch program, and it is as follows that VB calls the ANSYS method:

Directly adopt the Shell function among the VB, call ANSYS with the batch fashion running background.Concrete method of calling is for writing following statement in VB:

X＝Shell(″C:\Program?Files\ANSYS?Inc\v110\ANSYS\bin\intel\ansys110.exe?-b?-iinputfile.txt-o?outpufile.out″)

Here-b parametric representation ANSYS moves with batch processing mode.Inputfile.txt is initial input file, be actually the macro document with the APDL language compilation, can directly write the order that need move automatically therein in Ansys, outpufile.out is an output file, by checking destination file, can avoid the mistake output of program.

Because the difference of various selection of parameter need be called different APDL program languages, and in output procedure, also need to preserve mass data, the foundation of database is particularly important.This software is selected MS ACCESS database for use, and database of Jian Liing and VB program are seamless link like this.In the compilation process of this software package, what we adopted is VisualBasic 6.0 softwares, sets up and the editing data storehouse with DAO (Data Access Object, i.e. data access interface) mode.

Parametrization input produces another macro document batch program of the APDL language compilation of ANSYS (promptly by), thus need move this two macro documents when calling the ANSYS working procedure.When there were two macro document a1.mac and a2.mac in system, the program of calling a.mac at a2.mac was as follows:

* ulib, the path a1, mac! Call the a1 file

* use, an a1! Read the a1 macro document

Step 106, the call number road surface is carried out transient state and found the solution: the support reaction of the operation result above extracting is made a concerted effort, and assignment is given buildings weight parameter G, and extracts the support reaction (gravity direction) of each restrained Jacking point, save as the array form, its initial top lift as transient dynamic analysis.Number according to the jacking hydraulic cylinder, the size of self-defined road roughness, move the road surface length that per step walks, total migration distance, the data mode on numeral road surface, write road program, this road program comprises step: hydraulic cylinder number and relative position relation according to input are determined every group of form that produces data, guarantee that jacking road surface that cylinder is walked is same road surface on one group of track; Determine that according to random point length and step pitch length road surface, slope upper integral counts out; Determine the number of random road surface upslope according to displacement and random point length; According to minimum point and the definite scope that produces data of peak numerical value.Move this road program, and be the road surface data storage that each hydraulic cylinder will pass through an array, and according to the pairing Jacking point serial number of initial top lift.

As follows to processing method of data: as to suppose that road roughness is ± H mm, every variation 1mm hydraulic cylinder changes delta P/H, the wherein a certain top lift of original state is 460000N, next state relative height is 2mm, and this position top lift of then next state is 460000+2 * Δ P/H (N). the top lift of each state all is to calculate according to previous state.Because the summation of every group of data that generate might not equal buildings gravity, so for the summation that guarantees every group of number equates with buildings gravity, if M is the summation that every group of number adds up, then before each every group of number calls, relatively whether M equates with the value of G earlier, if equate, then directly call this group number of array; If do not wait then the value of (G-M)/N is added to all numbers of this group number respectively, N is the hydraulic cylinder number, and one group of new number assignment that will obtain is then given Jacking point.Because hydraulic cylinder enters down a kind of state by a kind of state and does not suddenly change, and the top lift of hydraulic cylinder also is gradual change, so when setting the substep condition, the linear variation of setting top lift, time, hydraulic cylinder spacing and COMPUTER CALCULATION time were taken all factors into consideration then according to migration velocity.

Step 108, to the output result, the designer is optimized according to selecting: export each substep data result and figure to MS ACCESS database, supply the workmen with reference to comparing.ANSYS output picture code is as follows:

/POST1

/SHOW，JPEG，，

PLNSOL，EPTO，EQV，0，1.0

/GFILE，500

/SHOW，CLOSE

/RENAME，file000，jpg，tos001，，

The order that VB loads figure is:

Picture1.Picture=LoadPicture ("＜VB〉the figure form and name.

jpeg″)

Can call at program interface and to check ANSYS result picture.

The optimizer step is as follows:

1. with the substep number of choosing, state variable, optimization variable, target variable and variation range be parametrization all;

2. extract the result that this substep obtains, such as post, beam, floor, the maximum stress that carriage is suffered, displacement, moment of flexure etc., and these values are represented with certain parameter;

3. mode is found the solution in definition; Find the solution and export and find the solution optimized results.

Step 109, the substep number that input is selected on the interface, and the correlation parameter data of optimizing (for example: if the target of finding the solution is when the maximum stress that makes carriage is no more than certain value bracket material to be economized most, then need to set the position and the sectional dimension of batter post, the sectional dimension of carriage is a design variable, floor, the maximum stress of beam column, moment of flexure, shearing is a state variable, the cumulative volume of carriage is a target variable) after, optimizer and parameter input macro document called;

Step 110 is carried out derivation, and derivation comprises: 1. and the initial value of design variable, carry out derivation; 2. construct objective function 3. definition status variable parameters; 4. generate and optimize Study document; 5. enter optimized processor and designated analysis file; 6. define the scope of design variable; 7. state variable is optimized in definition; 8. it is objective function that quality is set; 9. storage optimization database; 10 specify optimization method, and operation optimizer, and output optimization result comprise: list the optimal design sequence: list all implementation sequences, list the quality iterative process, list the maximum stress iterative process, the iterative process of display interface size.

Step 111 according to optimizing the result, is selected the data of optimal model.Data after input original building data and optimization on the VB interface are set up the migration models of optimizing;

Step 112 according to the method call digitizing road surface of step step 107, is found the solution optimal model.Output results to word template and MS ACCESS database:

In the word template, the present invention provides the judgement column, and beam, floor be by pressure break, cuts off and owing to moment of flexure or the excessive formula that destroys of amount of deflection.The parameter that may use in the formula all can be indicated in template, and the code about the buildings relative dimensions is consistent with buildings size code in VB interface and the APDL program in the formula.The position and the maximum stress that also comprise all kinds of building member dangerous points in the template, moment of flexure, concrete numerical value such as shearing.Utilize VB the relative dimensions of migration models among the ANSYS, and solving result output to the corresponding position of word document.The designer only needs to calculate a little the safety case that just can know the migration buildings.Relative program is as follows:

Dim?wApp?As?New?Word.Application

Dim?wDoc?As?Word.Document

Set?wDoc＝wApp.Documents.Open(“in”)

' in is the address of input file

wApp.Visible＝False

wDoc.Tables(i).cell(j，k).rang.text＝str00

' i, j, k are rank-numeral, the data of str00 for reading from VB

wDoc.SaveAs_Filename:＝Workbook.Path

wApp.Quit

Set?wDoc＝Nothing

Set?wApp＝Nothing

As shown in Figure 2, be surface chart of the present invention, when clicking the parametric programming at VB interface, the parametrization inputting interface occurs, can on the interface, keep one group of parameter of one buildings during practical application, for user of service's reference, after input was finished, the parameter input saved as macro document.

Claims (1)

1. optimization method based on the buildings slip migration models parametric modeling of VB, utilize graphical interfaces to be correlated with and build the input of parameter, utilize the parametric modeling of computer realization buildings and parameterized model is optimized processing, this method may further comprise the steps:

Carry out parametrization input, Bracket Type selection, model optimization, result's output by graphic interface;

With the parameterized migration building model of the APDL language compilation program of ANSYS, load solver;

Call the parameterization macro file and the ANSYS batch program that produce by the interface input parameter, find the solution, obtain operation result, promptly each jacking position is by the statics solving result after all retraining;

Extract the component with each support reaction identical of making a concerted effort of top lift in the above-mentioned operation result with gravity direction, simultaneously according to existing information, the operation road program, described road program comprises step: hydraulic cylinder number and relative position relation according to input are determined every group of form that produces data, guarantee that jacking road surface that cylinder is walked is same road surface on one group of track; Determine that according to random point length and step pitch length road surface, slope upper integral counts out; Determine the number of random road surface upslope according to displacement and random point length; According to minimum point and the definite scope that produces data of peak numerical value, the result of operation is stored as array;

Call array, it is handled, step is: the changing value that at first road roughness in the array is converted into top lift, then calculate next approximate value of top lift constantly with the top lift changing value that obtains according to a last moment hydraulic cylinder top lift value, allow the top lift that obtains compare then with buildings gravity, the difference that obtains is on average assigned on each jacking cylinder, calculate the top lift that next will apply constantly at last, it is converted into the top lift of one group of group, compose and give the jacking fulcrum, carry out the computing of transient state dynamics, each load step result that output is found the solution;

Write optimizer, substep number, state variable, optimization variable, target variable and the variation range of need optimization all are made as parameter;

Input needs state variable, optimization variable, the target variable that is provided with and its scope is set on the interface, calls optimizer with VB, carries out derivation, and described derivation comprises step: the initial value of design variable, carry out derivation; The structure objective function; The definition status variable parameter; Generate and optimize Study document; Enter optimized processor and designated analysis file; The scope of definition design variable; State variable is optimized in definition; Be provided with that one is an objective function in quality, stress, moment of flexure, shearing, axial force, the strain; The storage optimization database; Specify optimization method, operation optimizer, and output optimization result comprise: list the optimal design sequence: list all implementation sequences, list the quality iterative process, list the maximum stress iterative process, the iterative process of display interface size;

The result is optimized in output, and optimized member parameter is composed to the parameter in the program, and the call number road surface generates the result, after suitably handling, is converted into the top lift of jacking cylinder, and transient state Dynamic solving mode is set, and respectively each substep is found the solution;

The result is selectively outputed on the word template, make a decision foundation for construction technical staff.

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