OpenFresco Example Manual 2.6 – LabVIEW
Contents
1. NI it Enabling the Network for St C3 rE PX TR 2009 ID OpenFresco Framework for Hybrid Simulation LabVIEW Experimental Control Example Andreas Schellenberg Hong K Kim Yoshikazu Takahashi Gregory L Fenves and Stephen A Mahin Department of Civil and Environmental Engineering University of California Berkeley Last Modified 2009 08 03 Version 2 6 Acknowledgment This work was supported by the George E Brown Jr Network for Earthquake Engineering Simulation NEES Program of the National Science Foundation under Award Number CMS 0402490 Visit http it nees org for more information 2 of 20 Table of Contents 1 Introduction Local Hybrid Simulation Example Using LabVIEW Experimental Control with NEES FVII OPEO E e E cols cata etoactns als natnevenaatsnactt coda etsaquecalenadscodecaiiaanbnsaassesadontinnss 3 UU NS ea oc ete ye seach potest eee ote ncn seus E ae eeieseceseunseaas 3 De Oa LVN GLC cen eesce cette E aw vssarsee ances E A E 4 A AOU IVI OU M ER E RE E R E E 5 I OPES OTS e E A tate 3 Dal Te Xeric Mi al Control Poi sasssa ere in E iE io ou E EENET 6 52 Experimental COn Ol sa sscsnoccsemacascaeereoesonacaassennrcnneeequsdenaeersteseaqdsaasearasnqece EEEE EEEE 6 Io EPE e e E N E E E N 7 Dee Erp a E a E 8 Ja BMP As UCC oss gestae eee see cvnctane E E T 9 6 Running the Local Hybrid Simulation eccccccccccccsesseseeccecececaaeeeeeececeeeeseeeeaseeeceeeessaueassseeeeees 10 T RUP rears a A see sectors ctses2. 02 node Stag xCrd SyCrd S mass node 0 0 0 00 node 100 0 0 00 1 2 node 3 0 0 54 00 mass Smass3 Smass3 4 node 100 0 54 00 mass Smass4 Smass4 set the boundary conditions fix SDX SDY fix 1 1 fix 2 1 fix 3 1 1 LabVIEW Example 5 of 20 mass3 mass4 node 3 node 4 node 2 Figure 1 OpenSees One Bay Frame Model 4 Ground Motion The structure is subjected horizontally to the north south component of the ground motion recorded at a site in El Centro California during the Imperial Valley earthquake of May 18 1940 Chopra 2006 The file elcentro txt contains the acceleration data recorded at every 0 02 seconds Figure 2 150 100 50 0 a in sec g l g 100 150 0 5 10 15 20 25 30 35 Time sec Figure 2 1940 El Centro Ground Motion 5 OpenFresco Tcl Scripts This section explains the OpenFresco Tcl commands including the LabVIEW experimental control command in the Tcl script OneBayFrame Local tcl Each subsection highlights a Tcl command and the part of the script that contains the command All script excerpts are from OneBayFrame Local tcl Schellenberg et al Web it nees org JE TR 2009 I D Updated a eae Email it support nees org LE 6 of 20 Load OpenFresco package make sure all dlls are in the same folder as openSees exe loadPackage OpenFresco The loadPackage OpenFresco is necessary for the examples to execute properly 5 1 Experimental
3. 8 5 x and NEES SAM are required to run this example If not done so already OpenSees and Tcl Tk can be downloaded from the OpenSees website http opensees berkeley edu OpenSees user download php Follow the directions carefully on this website NEES SAM comes with the UI SimCor software package The UI SimCor installer can be downloaded from the NEES Forge Ul SimCor site http simcor neesforge nees org UI SimCor needs to be installed in the default location for NEES SAM to work properly NEES SAM can be found in In order to run UI SimCor the MATLAB Instrument Control toolbox is required This toolbox does not come with MATLAB but needs to be purchased separately C SIMCOR 02_ NEES SAM There are additional files in the directory C SIMCOR 03 Examples SDOF 03 OpenSees The following files should be in this directory Module cfg sdof tcl StaticAnalysisEnv tcl 3 Structural Model 4 of 20 The model consists of two columns and a spring The columns are element 1 connected to nodes 1 and 3 and element 2 connected to nodes 2 and 4 The spring is element 3 connected to nodes 3 and 4 A lumped mass is placed at the top of each column The two column bases are fixed They are axially rigid and the tops are free to rotate Imperial units were used inches kips sec The following Tcl script from OneBayFrame_Local tcl defines the geometry of the model Define geometry for model set mass3 0 04 set mass4 0
4. Control Point The LabVIEW experimental control command uses the previously defined experimental control points Experimental control points can be used to set limits on nodes This becomes useful when the experimental control apparatus has no limit setting capabilities Experimental control points are defined using the expControlPoint command Define control points expControlPoint tag nodeTag dir resp lt fact f gt lt lim 1 u gt expControlPoint 1 3 ux disp fact 0 003 lim 0 01 0 01 expControlPoint 2 3 ux disp fact expr 1 0 0 003 ux force fact expr 7 0 18 0 The expControlPoint command parameters are tag is the unique control point tag SnodeTag is the unique node tag dir is the direction of the response quantity The input parameters are ux along the X axis uy along the Y axis uz along the Z axis rx around the X axis ry around the Y axis o rz around the Z axis resp is the response quantity The input parameters are o disp displacement o vel velocity o accel acceleration o force force O time time f isthe factor applied to the response quantity It is optional I is the lower limit It is optional Whenever the lower or the upper limit is exceeded the program will prompt the user to stop the experiment or to use the limit as the trial value u is the upper limit Itis optional O O O O 5 2 Experimental Control Two different experimental controls are used in th
5. file Node Dsp out time node 3 4 dof 1 disp Node file Node Vel out time node 3 4 dof 1 vel Node file Node Acc out time node 3 4 dof 1 accel Element file Elmt_Frc out time ele 1 2 3 forces Element file Elmt_ctrlDsp out time ele 1 2 ctrlDisp Element file Elmt_daqDsp out time ele 1 2 daqDisp The following figures show the response quantities recorded in the output files Displacement in DOF 1 of Node 1 DOF 1 of Node 1 5 10 15 20 25 30 35 Time sec Figure 17 Displacement vs Time for LabVIEW Example Schellenberg et al Web it nees org 2 TR 2009 I D Updated A Raa Email it support nees org f JP LabVIEW Example 19 of 20 DOF 1 of Node 1 DOF 1 of Node 2 Velocity in sec 0 5 10 15 20 25 30 35 Time sec Figure 18 Velocity vs Time for LabVIEW Example 500 DOF 1 of Node 1 400 DOF 1 of Node 2 300 200 Acceleration in sec 0 5 10 15 20 25 30 35 Time sec Figure 19 Acceleration vs Time for LabVIEW Example Schellenberg et al Web it nees org 2 iy 2 TR 2009 I D Updated 2609 08 03 Email it support nees or 5 LabVIEW Example 20 of 20 Left Column Right Column Force Kips O 15 2 1 5 1 0 5 0 0 5 1 TS 2 Element Deformation in Figure 20 Element Hysteresis Loops for LabVIEW Example 8 References Hubbard P Calderon J and Gose S 2004 Protocal Specificiation of The LabVi
6. set to ZERO cad kag Press Enter to proceed or c to cancel the initialization Figure 8 OpenSees Command Window for Local Test The OpenSees command window will prompt the user to zero out the controller Since our test is fully simulated this is not required After hitting enter NEES SAM will open two Real time Monitoring windows Figures 9 and 10 After hitting enter one more time the NEES SAM window looks like Figure 11 It prints Current Step 1 amp W Real time Monitoring x Monitoring Yvindow X disp 2 CS 0 Step Number S2 auxX lt aeeu Figure 9 Displacement Time History Window for Local Test OBS LabVIEW Example 14 of 20 E Real time Monitoring xj Monitoring Window Figure 10 Element Hysteresis Window for Local Test E NEES SAM Lab iew1 15 x File View Help amp een step 1 amp Ready Request processed SDOF Connected OpenSees ds Figure 11 NEES SAM Window for Local Test Schellenb tal Web it nees org 2 TA TR 2009 I D Updated 2009 08 03 Email it support nees or I5 of 20 The OpenSees command window displays the Daq values Figure 12 dspDag and frcDaq should both be 0 It gives three input options Enter to start the test r to repeat the measurement or c to cancel the initialization If the Daq values are not 0 press r to reacquire the values Otherwise press enter to start the simulation Once the simulation commences
7. the setup tag of 1 and the setup uses the experimental control with tag 1 The right column uses the setup with tag 2 and the setup uses the experimental control with tag 2 Define experimental setup expSetup OneActuator Stag lt control SctrlTag gt dir sizeTrialOut SsizeTrial SsizeOut lt trialDispFact f gt expSetup OneActuator 1 control 1 1 sizeTrialOut 1 1 expSetup OneActuator 2 control 2 1 sizeTrialOut 1 1 The expSetup command parameters for OneActuator are tag is the unique setup tag S ctrlTag is the tag of a previously defined control object In this case it is Sim UniaxialMaterials dir is the direction of the imposed displacement in the element basic reference coordinate system S sizeTrial and S sizeOut are the sizes of the element trial and output data vectors respectively f are trial displacement factor output displacement factor and output force factor respectively These optional fields are used to factor the imposed and the measured data The default values are 1 0 8 of 20 Actuator Specimen Figure 3 OneActuator Experimental Setup 5 4 Experimental Element Both experimental elements are set to twoNodeLink elements Figure 4 The left column uses a twoNodeLink element with tag 1 and the element uses the experimental site with tag 1 The right column uses a twoNodeLink element with tag 2 and the element uses the experimental site with tag 2 Define expe
8. to simulate the experimental element TR 2009 ID Schellenberg et al Web it nees org ME d TZ Updated 2009 08 03 Email it support nees or ye es cn d LabVIEW Example 2 of 20 210 File View Help Ready Standby For connection SDOF 1 1997 OpenSees j Figure 7 NEES SAM Window for Local Test Start the OpenSees executable file openSees exe from the directory where OneBayFrame Local tcl is located User s Directory OpenFresco trunk EXAMPLES OneBayFrame TestLabVIEW At the command window prompt type source OneBayFrame_Local tcl and hit enter Figure 8 Schellenberg et al Web it nees org TR 2009 I D Updated A ee Email it support nees org a 13 of 20 c lt C Documents and Settings Hong OpenSees Open System For Earthquake Engineering Simulation Pacific Earthquake Engineering Research Center 1 7 4 lt c gt Copyright 1999 2000 The Regents of the University of California All Rights Reserved CCopyright and Disclaimer http www berkeley edu OpenSees copyright html gt OpenSees gt source OneBayFrame_Local tcl Ft The TCP IP socket with address 127 0 0 1 and port 11997 has been opened PEt Ft ExperimentalControl 2 type ECLabUIEW ipAddress 127 0 0 1 ipPort 11997 Cakakekedakakataxerarerarakekekekakacekakacasasaratakakatacakadakarasakecararceketakatatatataterararatakatatatatatkatatatataietetal FEE eet Make sure that offset values of controller are
9. Mz jNode lt 1 0 The remaining P Delta moments are resisted by shear couples default 0 0 0 0 0 0 0 0 9 of 20 iMod and m are also optional fields iMod allows for error correction using Nakashima s initial stiffness modification Default for iMod is false m is used to assign mass to the element Its default is zero Linear Transformation in EETwoNodeLink Figure 4 twoNodeLink Experimental Element 5 5 Experimental Site Both experimental sites are defined as LocalSite The left column uses the site with tag 1 and the site uses a previously defined OneActuator setup with tag 1 The right column uses the site with tag 2 and the site uses a previously defined OneActuator setup with tag 2 Define experimental site expSite LocalSite Stag S setupTag expSite LocalSite 1 1 expSite LocalSite 2 2 The expSite command parameters for LocalSite are tag is the unique site tag S setupTag is the tag of a previously defined experimental setup object 10 of 20 6 Running the Local Hybrid Simulation This example uses no client server communication Figure 5 OpenSees communicates with NEES SAM using the OpenFresco LabVIEW experimental control NEES SAM is used to simulate the left column of the model Figure 1 OpenSees ExpElement LocalExpSite ExperimentalSetup ExperimentalControl Backend Server Control System in Laboratory Figure 5 Local Hybrid Simulation using the Expe
10. ete A E S A E E E S 18 RCPS O a E E neceuteeasceupgeoacseatonetecurancouneetat 20 Table of Figures Figure 1 OpenSees One Bay Frame Model ccccccccccnnnnnesssesssseeeeeececcecceeeeeeeeaaaaaeeasseeeeeeeeeeeeeeeeees 5 Piee 2 IAO EC onto Grond INFOUO I secese E EN 5 Figure 3 OneActuator Experimental Setups t scsncectesvessssaincaeccovessisnesncaeddcvbuwiaaasacesnneveasigneiacaeducvbevaaasenweneee 8 Figure 4 twoNodeLink Experimental Element ccccnssssssseesssseeeececceeececeeeeeaaaaaaaeaeseeeeeeeeeeeeeeeeees 9 Figure 5 Local Hybrid Simulation using the Experimental Element 200 0000 cccseeseeeeeeeeeeeeeeeeeeeeeees 10 Figure 6 NEES SAM Open File Window for LabVIEW Example ccccccsnsseeseesseseeeeeeeeeeeeeeees 11 Figure 7 NEES SAM Window for Local Test ccccccssssessssseeeseeeeececceceeceeeeeaeaaaaaeaaeseeeeeeeeeeeeeeeees 12 Figure 8 OpenSees Command Window for Local TeSt cc eeeseesssssseeeeeeceeeeeeccceeeeaaeeaeseseseeeeeeeeeeeeeeees 13 Figure 9 Displacement Time History Window for Local Test ccccceccccccccccccceceeeeeeeeeesseeeeeeeeeeeeeeeeees 13 Figure 10 Element Hysteresis Window for Local Test 00 seeesessssseseeececeecceceeeeeaeaaeeeeeesseeeeeeeeeeeeeeeees 14 Figure 11 NEES SAM Window for Local Test cccccccccnssnssssssesssseeceecceeccccceeeeeaaaeaeaasseseseeeeeeeeees 14 Figure 12 OpenSees Command Window for Local TeSt ce eeeeeccsssseeeeeccececececeeaeaaeaaesesseeeeeeeeeeeeeeeees 15 Figu
11. ew NTCP plugin NEESit Report TR 2004 58 Chopra A K Dynamics of Structures Theory and Applications to Earthquake Engineering 3rd edition Prentice Hall 2006 912 pp Oh Sung Kwon et al User Manual and Examples for UI SIMCOR v2 6 and NEES SAM v2 0 University of Illinois Urbana Champaign Il 2007 Schellenb tal Web it nees org f TR 2009 I D Updated 2009 08 03 Email it support nees org Vi
12. g a real experiment be sure to check the Daq values before starting the test OBS LabVIEW Example 16 of 20 El NEES SAM LabView1 Iof x File View Help Current step Current step 1564 Current step 1565 Current step 1566 Current step 1567 Current step 1568 Current step 1569 Current step 1570 Current step 1571 Current step 1572 Current step 1573 Current step 1574 Current step 1575 Current step 1576 Current step 1577 Current step 1578 Current step 1579 Current step 1580 Current step 1581 Current step 1582 Current step 1583 Current step 1584 Current step 1585 Current step 1586 Current step 1587 Current step 1588 Current step 1589 Current step 1590 Current step 1591 Current step 1592 Current step 1593 Current step 1594 Current step 1595 Current step 1596 Current step 1597 Current step 1598 Current step 1599 Network connection closed M iay ari Ready Disconnected SDOF Closed OpenSees 7 Figure 13 NEES SAM Window for Local Test after Simulation RY RR Ro Ro Ro Ro Bn Ro Ro Ro Ro Bo Bo Bo Ro Bo Rn Rn Bo Ro Bn Bo Bo Bn Rn Bo Rn Bn Bo Bo Bn Ro A Bn Bn Oo At the end of the simulation the two NEES SAM Real time Monitoring windows now look like Figures 14 and 15 ON Realtime Monitoring Monitoring Window Figure 14 Displacement Time History Window for Local Test after Simulation Schellenberg et al Web it nees org TR 2009 I D Updated sane neces Email it support nees org I7 of 20 DN Real t
13. ime Monitoring X Monitoring Window N 10 oO 5 9 10 20 30 0 X disp 2 5 AO 1 X gau Figure 15 Element Hysteresis Window for Local Test after Simulation The OpenSees command window looks like Figure 16 at the end of the simulation c C Documents and SettingsHong My Documents OResearch OpenF resco Virunk EXAMPLESW BEE 1581 1582 1583 1584 1585 1586 1587 1588 1589 1596 1591 1592 1593 1594 1595 1596 1597 1598 1599 Elapsed Time The OpenSees gt session with 104363037 microseconds per iteration LabVIEW has been closed Figure 16 OpenSees Command Window for Local Test after Simulation LabVIEW Example 18 of 20 7 Results There are now output files from the simulation in the directory User s Directory OpenFresco trunk EXAMPLES OneBayFrame TestLabVIEW The following are the output files Elmt Fre out Elmt_ctrlDsp out Elmt daqDsp out Node Acc out Node Dsp out Node Vel out These files are created using the recorder command Below is the following script that executes this command The OpenFresco Command Language Manual contains more information about the element recorder commands for all the experimental elements For the node recorder commands refer to the OpenSees Command Language Manual on the OpenSees website http opensees berkeley edu create recorder recorder recorder recorder recorder recorder the recorder objects Node
14. is example The left column is simulated using the LabVIEW experimental control The LabVIEW experimental control uses control point 1 as the trial control point and control point 2 as the output control point The right column is simulated using the SimUniaxialMaterials experimental control 7 of 20 Define experimental control expControl SimUniaxialMaterials Stag SmatTags expControl SimUniaxialMaterials 1 1 expControl xPCtarget 1 1 192 168 2 20 22222 HybridControllerD3D3 1Act D PredictorCorrector RTActualTestModels cmAPI xPCTarget STS expControl LabVIEW tag ipAddr lt ipPort gt trialCP cpTags outCP cpTags expControl LabVIEW 2 127 0 0 1 11997 trialCP 1 outCP 2 use with NEES SAM expControl LabVIEW 2 130 126 242 175 44000 trialCP 1 outCP 2 use with Mini Most at UIUC expControl SimUniaxialMaterials 2 2 use for simulation The expControl command parameters for SimUniaxialMaterials are tag is the unique control tag matTags are the tags of previously defined uniaxial material objects The expControl command parameters for LabVIEW are tag is the unique control tag ipAddr is the IP address of the computer running the LabVIEW plugin S ipPort is the IP port number of the computer running the LabVIEW plugin ScpTags are the tags of the previously defined control points 5 3 Experimental Setup The OneActuator setup is used for both experimental setups Figure 3 The left column uses
15. re 13 NEES SAM Window for Local Test after Simulation 20 0 0 ccccccnnneeteeeeeeeeeeeeeeeeeeeeeees 16 Figure 14 Displacement Time History Window for Local Test after Simulation s es 16 Figure 15 Element Hysteresis Window for Local Test after Simulation 2 0 0 cessssseeeeeseeeeeeeeeeeeeees 17 Figure 16 OpenSees Command Window for Local Test after Simulation cc eeeeeeeeeseeeeeeeeeeeeeeees 17 Figure 17 Displacement vs Time for LabVIEW Example cccccceeeeccccceceeeeeeeeeeeeeeeseseeeeeeeeeeeeeeees 18 Figure 18 Velocity vs Time tor LabVIEW Example ssicacsseicceniecesceseussusesddeducestarsesehentenceseushaunidedwcasaaaiocs 19 Figure 19 Acceleration vs Time for LabVIEW Example cccccsccececcecccecceeeeeeaeeeeesseeeeeeeeeeeeeeeeees 19 Figure 20 Element Hysteresis Loops for LabVIEW Example cccccccccccccccceceeeeeeeeeseeeeeeeeeeeeeeeeeees 20 3 of 20 1 Introduction Local Hybrid Simulation Example Using LabVIEW Experimental Control with NEES SAM and OpenSees As a part of phase I of the NEES hybrid simulation project the LabVIEW experimental control was implemented in OpenFresco LabVIEW is a software used to control the MiniMost and MTS LBCB Load and Boundary Condition Box at the University of Illinois at Urbana Champaign It uses the LabVIEW NTCP plugin communication protocol to communicate over a single persistent TCP connection TR 2004 58 Hubbard et al 2004 a NEESit doc
16. rimental Element To run this simulation perform the following steps Start NEESSAM_LabView1 exe which is located in Cc SIMCOR 02 NEES SAM An Open File window will appear Figure 6 Choose the Module cfg file located in C SIMCOR 03 Examples SDOF 03 OpenSees Hit Open An error may be encountered during the simulation with NEES SAM The error message reads couldn t read file step tcl no such file or directory This error will end the simulation It may be caused by NEES SAM not being able to write the Tcl file fast enough before receiving the execute command from OpenFresco However this error does not occur when running an experiment with a computer running LabVIEW The test executes 1599 steps Depending on the speed of the computer the simulation could take as long as an hour p ma e 2s org A Z J y LabVIEW Example Figure 6 NEES SAM Open File Window for LabVIEW Example Look in 03_OpenSees 0 e My Recent Documents Desktop My Documents i Pr My Computer K File name Module m Open gt p emg Files of type NEES SAM Configuration File cfg Cancel Places Open as read only Il of 20 After choosing the file the NEES SAM window looks like Figure 7 The bottom left of the window should read Ready Standby for connection The bottom right of the window should read SDOF name of the Tcl file being used 11997 IP port number and OpenSees program used
17. rimental elements left and right columns expElement twoNodeLink SeleTag iNode jNode dir S dirs site S siteTag initStif Kij lt orient lt xl x2 x3 gt Syl Sy2 Sy3 gt lt pDelta 4 Mratio gt lt iMod gt lt mass m gt expElement twoNodeLink 1 1 3 dir 2 site 1 initStif 2 8 orient 1 0 0 expElement twoNodeLink 2 2 4 dir 2 site 2 initStif 5 6 orient 1 0 0 The expElement command parameters for twoNodeLink are S eleTag is the unique element tag iNode and jNode are the end nodes that the element connects to siteTag Is the tag of a previously defined site object In this example it is the LocalSite for the local test and the RemoteSite for the distributed test dirs are the force deformation directions in the element local reference coordinate system Kij are the row wise initial stiffness matrix components of the element xl x2 x3 Syl Sy2 Sy3 set the orientation vectors for the element x1 x2 and x3 are vector components in the global coordinates defining the local x axis y1 y2 and y3 are the same except that they define the y vector which lies in the local x y plane for the element lt orient lt xl x2 x3 gt Syl Sy2 S y3 gt field is optional with default being the global X and Y Mratio are the optional P Delta moment contribution ratios The size of the ratio vector is 4 entries My iNode My jNode Mz iNode Mz jNode My iNode My jNode lt 1 0 Mz iNode
18. step numbers will scroll down the screen ct C Documents and Settings HongWy L All Rights Reserved CCopyright and Disclaimer http uwww berkeley edu OpenSees copyright html gt s gt source OneBayFrame_Local tcl The ITCP IP socket with address 127 0 0 1 and port 11997 has been opened IERIE EEEIEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE alsa IEEE EEEIEE EEEE EEEE EEEE EEEIEE EEEIEE EEEE EEEE EEEIEE EEEIEE EEEE EEE EEE ExperimentalControl 2 type ECLabUIEW sad ipAddress 127 0 0 1 ipPort 11997 IERE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE EEEE I a a E Make sure that offset values of controller are set to ZERO kag bag J J ws Press Enter to proceed or c to cancel the initialization cakaXakacakekekekakakecacakerakekarakacacacarakecarakarakacakecareke raara rora ra Zarara rara xaxaxaxaxaxaxaxa raara rarna Eez Eeee Eataa tt Initial values of DAG are dspDaq freDaq Press Enter to start the test or y to repeat the measurement or J J c to cancel the initialization tal tal tal tal tal E tal tal Figure 12 OpenSees Command Window for Local Test After OpenSees starts the simulation the step numbers will also scroll down the NEES SAM window until the simulation time step reaches 1599 Then the NEES SAM window will print Network connection closed Figure 13 This shows that the simulation has ended Durin
19. ument contains the details about the LabVIEW NTCP plugin This example shows how to use the LabVIEW experimental control with NEES SAM Network for Earthquake Engineering Simulation Static Analysis Module NEES SAM is part of the UI SimCor University of Illinois Simulation Coordinator distribution It should be noticed that OpenFresco also works with UI SimCor and that there is a simple SDOF Single Degree of Freedom example in the UI SimCor example directory C SIMCOR 03_ Examples SDOF 05 OpenFresco that demonstrates this However this example is not explained here since the UI SimCor Manual Kwon et al 2006 contains instructions for running such example NEES SAM is used to run a fully simulated test in this example meaning that no physical specimen is required The computational driver is OpenSees http opensees berkeley edu While both a local and a distributed hybrid simulation can be performed with the provided Tcl files this document only shows how to run the local test The response results from the simulation are provided for comparison 2 Required Files For the LabVIEW example the following files are required These are located in User s Directory OpenFresco trunk EXAMPLES OneBayFrame TestLabVIEW if OpenFresco was installed in the default location the User s Directory is C Program Files The following Tcl files should be in this directory OneBayFrame Local tcl elcentro txt The OpenSees executable Tcl Tk
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