NEES Presentation Yang 1

8/8/2019 NEES Presentation Yang 1

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Graphical input is more flexible than TCL textinput.Most researchers use MATLAB to do the post-processing, and MATLAB/Simulink is the typicalframework for implementing hybrid simulationtests.OpenSees Navigator will create the OpenSees(analytical/hybrid) model and graphically displaythe results before, during or after a test.Flexible to use and requires no programmingskill.

Motivations

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OpenSees Navigator


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Stick Model Beam Model

Moment Frame

Inverted-V Braced Frame

EBF Model Zipper Frame

Single Area Mesh

Define geometry: new model template

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Define geometry: Zipper braced frame


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Node:

-Tags

-SP Constraints

-MP Constraints

-Masses

-Loads/Displ.

Element:

-Tags

-Types

-GeoTrans

-Local Axes

-Zero Length

General:

-Model-Global Axes

-Grid Lines

View geometry: set display options

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View geometry: display


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Node:

-Add

-Delete

-Move

Element:

-Add

-Delete

-Divide/Join

-Add/DeleteZeroLength

Edit geometry

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Templates:

-BoucWen

-Concrete01

-Concrete02

-Concrete03

-Elastic

-ElasticNoTension

-ElasticPP

-ElasticPPGap

-Fatigue

-Hardening

-Hysteretic

-MinMax

-Parallel

-Series

-Steel01

-Steel02

-Viscous

Define material: uniaxial materials


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Material properties Fy = 50 ksi E = 29000 ksi b = 0.05

Define uniaxial material: Steel01

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Define uniaxial material: Steel01


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Templates:

-ElasticCrossAnisotropic3D

-ElasticIsotropic

-FluidSolidPorous

-J2Plasticity

-MultiaxialCyclicPlasticity

-PlaneStress

-PlateFiber

-PressureDependMultiYield

-PressureDependMultiYield02

-PressureDependentElastic3D

-PressureIndependMultiYield

-Template3DElastoPlastic

Under development:

-NewTemplate3DElastoPlastic

-ModelsLargeDeformation

Define material: nD materials

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Templates:

-Aggregator

-Elastic

-Fiber

-Uniaxial

Define section: line sections


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Define line section: fiber section

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Define fiber section: AISC patch


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Templates:

-Bidirectional

-ElasticMembranePlate

-PlateFiber

Define section: area section

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Templates:

-CorotationalTruss

-DispBeamColumn

-ElasticBeamColumn

-ExpBeamColumn

-ExpChevronBrace

-ExpTruss

-ExpZeroLength

-ForceBeamColumn

-HingeBeamColumn

-Truss

-ZeroLength

Define element: line element


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Define line element: ElasticBeamColumn

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Define line element: ForceBeamColumn


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Define element: area and solid elements

Templates (area):-Quad

-Shell

-BbarQuad

-EnhancedQuad

Templates (solid):

-Brick8N

-StdBrick

Under development:

-Brick20N

-Quad-UP

-Brick8Nu-p-U

-Brick20Nu-p-U

-ElementsLargeDeformation

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Templates:

-Constant

-Linear

-PathFile

-PathFileFiltered

-PathValue

-Pulse

-Rectangular

-Sine

-Triangle

Define TimeSeries:


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0 5 10 15 20 25 30300

200

100

0

100

200

300

Time [sec]

Grou

ndAcceleration[in/sec

2]

GroundAccelerationTimeHistory (SAC NF01 (1978 Tabas))

Define TimeSeries: PathFile

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Templates:

-Plain

-UniformExcitation

-MultipleSupport

Define LoadPattern:


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Define LoadPattern: UniformExcitation

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Templates:

-BeamColumn Element

-Display

-Experimental Element

-Node

-Truss Element

-ZeroLength Element

Defaults:

-DefoShape

-EigenVector

Define recorder


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Define recorder: node recorder

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Define recorder: BeamColumn recorder


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Defaults:

-StaticDefault

-TransientDefault

-EigenDefault

Define analysis options

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Integrator Type:

For example use AlphaOS Method for Hybrid Simulation

Solution Algorithm:

The AlphaOS Method requires a Linear solution algorithm

Define analysis options: new analysis


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Node:

-SP Constraints

-MP Constraints

-Masses

-Loads

-Displacements

Element:

-Types

-GeoTrans

-Rotations

-ZeroLength Axis

Assign menu

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Assign menu


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Nodal MassesElement Types

Display assigned properties

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Defaults:

-StaticDefaultCase

-EigenDefaultCase

Define analysis case


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

Define analysis case: new analysis case

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expControl Interfaces to the different control and data acquisition.

expSetup Transforms between the experimental element degrees

of freedom and the actuator degrees of freedom (linearvs. non-linear transformations).

expSite Stores data and provides communication methods for

distributed testing.

expElement Represents the part of the structure that is physically

tested and provides the interface between the FE-software and the experimental software framework

OpenFresco: hybrid simulation


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Templates:

-SCRAMNet

-dSpace

-xPCtarget

-MTSCsi

-LabVIEW

-SimUniaxialMaterials

Define expControl:

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Define expControl: MTSCsi


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Templates:

-InvertedVBrace

-InvertedVBraceJntOff

-Aggregator

-NoTransformation

-OneActuator

-TwoActuators

-ThreeActuators

-ThreeActuatorsJntOff

Define expSetup:

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L0L1

L2L3

L4

Actuator 0:LA0

Actuator1:LA1

Actuator2:LA2

L0L1

L2L3

L4

Actuator 0:LA0

Actuator1:LA1

Actuator2:LA2

Define expSetup: InvertedVBrace


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Templates:

-LocalSite

-RemoteSite

-ActorSite

Define expSite:

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Define expSite: LocalSite


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i j

k

x1 x2

y

d6, q6

d7, q7

d8, q8

d5, q5

d4, q4

d3, q3d0, q0

d1, q1

d2, q2

controlled displacements

acquired forces acquired forces

Define expElement: InvertedVBrace

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ExperimentalChevronBrace

Element

Define expElement: InvertedVBrace


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Steps:

1. Set OpenSees.exe Path (needs to be done only once)

Run OpenSees: set OpenSees.exe path

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Steps:

2. Write OpenSees Input Files (writes TCL files)

3. Run OpenSees

Run OpenSees: write TCL files


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First:

Load OpenSees Results into Matlab

Post processing: load results

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Now these are enabled

Post processing: output


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Time Step AnalysisCase Recorder Order Magnification

Post processing: plot deformed shape

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Time Step AnalysisCase Recorder Response Magnification

Post processing: plot element forces


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Animation Speed AnalysisCase Recorder Mode Magnification

Post processing: plot mode shape

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ParameterAnalysisCase Recorder Node/Element DOF

Post processing: plot response histories


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ResponseSpectra Name Damping Axis Scale

Post processing: plot response spectra

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Post processing: animate response


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Post processing: principal stress and strain

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Database Inquiries:

-Show Available Sections

-Find Section Properties

-Find Matching Sections

Design Checks:

-Bending Capacity

-Compression Capacity

-Shear Capacity

-PMM Interaction

Design: AISC design toolbox


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AISC design toolbox: find section properties

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AISC design toolbox: find matching sections


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AISC design toolbox: bending capacity

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AISC design toolbox: compression capacity


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AISC design toolbox: shear capacity

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AISC design toolbox: PMM interaction


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OpenSees Navigator provides Flexible and user friendly graphical user interface. Great tool to visualize structural behavior. Easy way to study material, section, element or

system behavior.

Hybrid simulation interface (OpenFresco).Many design toolboxes: NSP, PBEE, AISC designchecks, AISC database, response spectra forlinear and bilinear systems and signal filtering.Both MATLAB Pcode and self-executableversions are available.

Summary

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Website: home


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Website: download

Thank you!

OpenSees Navigator 2.3 is available atOpenSees Navigator 2.3 is available at

http://http://peer.berkeley.edupeer.berkeley.edu/OpenSeesNavigator/OpenSeesNavigator

Contacts:

Eiji Kohama: [email protected] Schellenberg: [email protected] Yang: [email protected]

NEES Presentation Yang 1

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Transcript of NEES Presentation Yang 1