Statistics Seminar::Exploitation and integration of detailed and quick FEA simulations: Improving engineering design via a Bayesian synthesis

Event Details
  • Date/Time:
    • Thursday January 15, 2004 - Wednesday January 14, 2004
      11:00 am - 11:00 pm
  • Location: Main ISyE Building, Room 228
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  • Fee(s):
    N/A
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Contact
Barbara Christopher
Industrial and Systems Engineering
Contact Barbara Christopher
404.385.3102
Summaries

Summary Sentence: Statistics Seminar::Exploitation and integration of detailed and quick FEA simulations: Improving engineering design via a Bayesian synthesis

Full Summary: Statistics Seminar::Exploitation and integration of detailed and quick FEA simulations: Improving engineering design via a Bayesian synthesis

This talk is motivated by collaborative work on robust topology design of cellular material at Georgia Tech. In simulating the material properties finite elements analysis (FEA) can be done based on different physical-mechanistic models. Typically a more detailed or accurate model will require longer FEA runs while a simplified or rough model will require quicker FEA runs. They are referred to as detailed and quick simulations respectively. Detailed simulations can take up days of CPU time. While they can provide more accurate results, their number can be limited. On the other hand, many quick simulations can be obtained, though the results are less reliable. A new approach is taken here to combine these sources of data to come up with a meta-model that can be used to describe the relationship between the output of FEA runs (i.e., material properties) and input parameters (i.e., design parameters) and for prediction. Since the quick simulations form the bulk of the data, they are used to build a semi-parametric model based on Gaussian random functions. This fitted model is then

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H. Milton Stewart School of Industrial and Systems Engineering (ISYE)

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Seminar/Lecture/Colloquium
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Status
  • Created By: Barbara Christopher
  • Workflow Status: Published
  • Created On: Oct 8, 2010 - 7:42am
  • Last Updated: Oct 7, 2016 - 9:52pm