Transcript ODEn OpenSees Design Environment Adam Markowitz, Alisa Neeman, Boris Jeremić, Alex Pang University of California, Santa Cruz and 11/7/2015 University of California, Davis.

ODEn
OpenSees Design
Environment
Adam Markowitz, Alisa Neeman,
Boris Jeremić, Alex Pang
University of California, Santa Cruz and
11/7/2015
University of California, Davis
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Motivation
• OpenSees earthquake engineering
simulation requires hand-coding C++ or Tcl
• User creates a mesh in Abaqus or GiD
• Creation of materials
• Creation of elements
• one by one or
• user may write single-use Matlab script to assist
• Process is cumbersome and error-prone
• No visual cues to aid user
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The Dream…
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Pieces of ODEn
• Abconv
• Convert Abaqus data to OpenSees XML document
• ODEn (GUI)
• Visualize, modify, and persist OpenSees XML
Documents
• Osgen
• Generate OpenSees source code (C++, Tcl, etc.)
from OpenSees XML documents
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Why use XML?
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Well formatted
Automated validation
Human readable
Machine readable
Platform Independent
XML does half the work of a compiler
• Facilitates translation to other formats
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Main Capabilities
• Automate mesh-to-element transformation
• Provide visual interface so user can check
design for errors
• Automate creation of materials
• Facilitate assignment of materials and/or
material properties
• To single elements
• To groups of elements
• Persist models for future modifications
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Abconv
• Read mesh data from Abaqus
• Convert mesh data into an OpenSees
XML document
*Part, name=Soil
*Node
1, 30368., 0., 13520.
2, 23504., 0., 13520.
./abconv mesh.inp
<NodeGroup name="Soil">
<Node id="1" Crd1="30368" Crd2="0" Crd3="13520" />
<Node id="2" Crd1="23504" Crd2="0" Crd3="13520" />
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ODEn
• Domain inspector
• Allows selection and modification (materials, etc.)
of finite elements and finite element groups
• Reads in OpenSees XML documents
• Generated by abconv
• Serialized from OpenSees Domain
(printXMLModel)
• Persist OpenSees XML document with
properties such as materials, etc.
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ODEn interface
Element group
Material
properties
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ODEn interface
Saved
Materials
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osgen
osgen (OpenSees Generator) takes an OpenSees XML instance
document, and validates against the OpenSees XML Schema.
This XML instance document represents a serialized OpenSees
Domain and is used to generate runnable source code
automatically. Essentially, osgen acts like a compiler from XML to
C++ or Tcl.
XML
schema
XML
domain
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Generate
C++
validate
Generate
Tcl
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Big Picture
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ODEn allows visualization, design, and modification
of properties for OpenSees objects using an intuitive
Graphical User Interface
Input: OpenSees XML document, Abaqus mesh data,
etc.
Output: OpenSees XML document, C++ or Tcl source
code
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Future Work
• Version Control Integration to version
Domain XML Documents
• Code generation plugins (such as Tcl)
• Architecture already in place!
• Multi-platform GUI support
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Working prototype can be found at
NEESforge as part of the VEES project
We’re looking for volunteers to code and
participate in user studies
http://neesforge.nees.org/projects/vees/
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