OpenSees Navigator & Hybrid Simulation

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Presentation transcript:

OpenSees Navigator & Hybrid Simulation Project by PEER in support of NEES Graduate Student: Andreas Schellenberg Advisor: Prof. Stephen Mahin

Introduction MATLAB based Graphical User Interface developed by Andreas Schellenberg & Tony Yang Pre- and post-processing for OpenSees Integration of Hybrid Simulation into OpenSees Design toolboxes: NSP, AISC design checks, …

Motivation Graphical input is more flexible than TCL text input Most researchers use MATLAB to do the post-processing, and MATLAB/Simulink is the typical framework for implementing hybrid analyses OpenSees Navigator will create the OpenSees (hybrid) model and graphically display results before, during or after a test Flexible to use and requires no programming skills

OpenSees Navigator

Define Geometry Stick Model Beam Model Moment Frame Inverted-V Braced Frame EBF Model Zipper Frame

Define Geometry: Braced Frame

Define Geometry: Display Node: -Numbers -SP Constraints -MP Constraints -Masses -Loads/Disp. Element: -Types -GeoTrans -Local Axes

Edit Geometry Node: -Add -Delete -Move Element: -Divide

Define Material Templates: -Elastic -ElasticNoTension -ElasticPP -ElasticPPGap -Hardening -Steel01 -Steel02 -Concrete01 -Concrete02 -Concrete03 -Hysteretic -Viscous -Parallel -Series

Define Steel02 Material: 50ksi

Define Section Templates: -Elastic -Uniaxial -Fiber -Aggregator

Define Fiber Section: Column

Define Element Templates: -Truss -CorotationalTruss -ElasticBeamColumn -ForceBeamColumn -DispBeamColumn -HingeBeamColumn -ZeroLength -ExpTruss -ExpBeamColumn -ExpChevronBrace

Define ElasticBeamColumn Element

Define ForceBeamColumn Element

Define TimeSeries Templates: -Constant -Linear -Rectangular -Sine -PathValue -PathFile

Define PathFile TimeSeries: SACNF01

Define LoadPattern Templates: -Plain -UniformExcitation

Define UniformExcitation LoadPattern

Define Recorder Templates: -Node -Drift -Truss Element -BeamColumn Element Defaults: -DefoShape -EigenVector

Define BeamColumn Recorder

Define Analysis Options Defaults: -StaticDefault -TransientDefault -EigenDefault

Define New Analysis Options

Assign Menu Node: -SP Constraints -MP Constraints -Masses -Loads -Displacements Element: -Types -GeoTrans -Rotations

Assign Menu

Assigned Properties Nodal Masses Element Types

Define Analysis Cases Defaults: -StaticDefaultCase -EigenDefaultCase

Define New Analysis Case For Example: Periods and Mode Shapes after Time-History Analysis

To Run OpenSees Steps: 1. Write OpenSees Input Files (writes TCL files) 2. Save OpenSees.exe Path (needs to be done only once) 3. Run OpenSees

Post-Processing: Output First: Load OpenSees Results into Matlab

Post-Processing: Output Now these are enabled

Mode Shape: 1st Mode Animation Speed AnalysisCase Recorder Mode Magnification

Mode Shape: 3rd Mode Animation Speed AnalysisCase Recorder Mode Magnification

Deformed Shape Time Step AnalysisCase Recorder Order Magnification

Response AnalysisCase Recorder Parameter Node/Elem DOF

Hybrid Simulation Example Experimental ChevronBrace Element

Define Experimental Control Templates: -xPC Target (-SCRAMNET 150) -dSpace 1104 -BeamColumnSim -ChevronBraceSim

Define ExpControl: xPC Target

Define Experimental Setup Templates: -OneStaticActuator -TwoStaticActuators -ThreeStaticActuators -ChevronBrace

Define ExpSetup: ChevronBrace rigidLength2 rigidLength3 © Tony Yang

Define Experimental Site Templates: -LocalSite -RemoteSite

Define ExpSite: RFS

Define ExpElement: ChevronBrace

Modify Analysis Options Integrator Type: Use AlphaOS Method for Hybrid Simulation Solution Algorithm: The AlphaOS Method requires a Linear solution algorithm

Mode Shape: 1st Mode Animation Speed AnalysisCase Recorder Mode Magnification

Mode Shape: 3rd Mode Animation Speed AnalysisCase Recorder Mode Magnification

Deformed Shape Time Step AnalysisCase Recorder Order Magnification

Response AnalysisCase Recorder Parameter Node/Elem DOF

Summary OpenSees Navigator provides Flexible and user friendly graphical user interface Easy way to study material, section, element or system behaviors Hybrid Simulation interface Many built in post processing toolboxes Great tool to visualize structural behavior Graphical user interface for AISC steel manual section properties

Conclusion OpenSees Navigator 2.0 is available at http://peer.berkeley.edu/OpenSeesNavigator Andreas Schellenberg: Tony Yang: aschell@peer.berkeley.edu yang@peer.berkeley.edu