Utility of coupling nonlinear optimization methods with numerical modeling software

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Results of using GLO (Global Local Optimizer), a general purpose nonlinear optimization software package for investigating multi-parameter problems in science and engineering is discussed. The package consists of the modular optimization control system (GLO), a graphical user interface (GLO-GUI), a pre-processor (GLO-PUT), a post-processor (GLO-GET), and nonlinear optimization software modules, GLOBAL & LOCAL. GLO is designed for controlling and easy coupling to any scientific software application. GLO runs the optimization module and scientific software application in an iterative loop. At each iteration, the optimization module defines new values for the set of parameters being optimized. GLO-PUT inserts the new parameter ... continued below

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11 p.

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Murphy, M.J. August 5, 1996.

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Description

Results of using GLO (Global Local Optimizer), a general purpose nonlinear optimization software package for investigating multi-parameter problems in science and engineering is discussed. The package consists of the modular optimization control system (GLO), a graphical user interface (GLO-GUI), a pre-processor (GLO-PUT), a post-processor (GLO-GET), and nonlinear optimization software modules, GLOBAL & LOCAL. GLO is designed for controlling and easy coupling to any scientific software application. GLO runs the optimization module and scientific software application in an iterative loop. At each iteration, the optimization module defines new values for the set of parameters being optimized. GLO-PUT inserts the new parameter values into the input file of the scientific application. GLO runs the application with the new parameter values. GLO-GET determines the value of the objective function by extracting the results of the analysis and comparing to the desired result. GLO continues to run the scientific application over and over until it finds the ``best`` set of parameters by minimizing (or maximizing) the objective function. An example problem showing the optimization of material model is presented (Taylor cylinder impact test).

Physical Description

11 p.

Notes

OSTI as DE96050353

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  • International conference on shock waves in condensed matter, St. Petersburg (Russian Federation), 2-6 Sep 1996

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  • Other: DE96050353
  • Report No.: UCRL-JC--123949
  • Report No.: CONF-9609239--3
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 368284
  • Archival Resource Key: ark:/67531/metadc688067

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  • August 5, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 18, 2016, 11:14 a.m.

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Murphy, M.J. Utility of coupling nonlinear optimization methods with numerical modeling software, article, August 5, 1996; California. (digital.library.unt.edu/ark:/67531/metadc688067/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.