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	After changing fundamental models of deterministic systems to stochastic models, scientists simulate the influence of contaminants in a system.

During component and system development, performance predictions are often based on specific physical characteristics and deterministic operating parameters. System contaminants often modify operating performance, resulting in a change of deterministic equations to stochastic models involving time-varying, probabilistic random variables.

Using contamination sensitivity analysis, testing, modeling, and simulation methodologies, Southwest Research Institute (SwRI) engineers help manufacturers:

• Design components to function:

  • At given contamination levels

  • For suitable periods of time

  • With acceptable performance

• Identify contaminant-sensitive components

• Develop realistic service-life estimates

• Achieve targeted service life for final designs

For more information about our modeling and simulation capabilities, or how you can contract with SwRI, please contact Xiaojian Tao, Ph.D., at xtao@swri.org or (210) 522-6962.

contaminationresearch.swri.org

| Fuels and Lubricants Technology Department | Fuels and Lubricants Research Division | SwRI Home |

Southwest Research Institute^® (SwRI^®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 12 technical divisions.

April 23, 2010