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TRACC Computing Resources

Network Access

Application Software

Traffic Simulation and Evacuation Planning
• TRANSIMS

Computational Fluid Dynamics
• STAR-CD
• STAR-CCM+
• STAR-Design
• ANSYS FLUENT

Computational Structural Mechanics
• LS-DYNA®
• LS-OPT®
• Abaqus®

Mesh Generators, Toolkits, Utilities, Compilers
• NoMachine
• TrueGrid
• MATLAB

Computational Structural Mechanics

LS-OPT®

Overview

The U.S. Department of Transportation´s (USDOT´s) current and near-future need for computational structural mechanics led the Transportation Research and Analysis Computing Center (TRACC) researchers to select the commercial LS-DYNA suite of codes, developed by Livermore Software Technology Corporation, as one of TRACC’s structural analysis software packages. The package includes LS-DYNA, LS-PrePost®, and LS-OPT®. LS-OPT is the optimization tool that allows the user, through the graphical interface, to structure the design process, explore the design space and compute optimal designs according to specified constraints and objectives. The program is also highly suited to the solution of system identification problems and stochastic analysis, including probabilistic analysis. LS-OPT interfaces perfectly with LS-DYNA but can also be used with other software and user defined solvers. LS-OPT is being continuously upgraded and soon will be capable of performing topology optimization.

Current TRACC Applications

The National Highway Transportation Safety Administration (NHTSA) is performing frontal impact studies on TRACC’s cluster computer using a finite element model of a THOR-NT dummy seated in a sled. NHTSA researchers are using LS-OPT for optimization of the restraint system. Around 550 simulations were run. Currently, TRACC staff members are developing a one day long training course for using LS-OPT on the TRACC cluster. The course is planned for the 2009 fall/winter time frame.

Using LS-OPT@TRACC

  • Instructions for using LS-OPT can be found HERE
  • LS-OPT Training and Reference can be found HERE
  • TRACC researchers are in the process of developing training courses.

 
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