Tribological Simulation
Office of Automotive Engineering

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image of chart showing orbital motion, main bearing 5

Orbital motion of an engine main bearing.

From relatively simple orbital analyses to more complex surface and subsurface stress analyses, Southwest Research Institute (SwRI) bearing and tribological simulation capabilities help to quantify the sensitivity of the bearing to design parameters so the bearing geometry can be optimized.

Optimizing the bearing geometry allows the engine design and analysis engineers to predict crankshaft dynamic behavior and to analyze bearing performance for:

  • Bearing forces
  • Minimum film thickness
  • Oil film pressure
  • Journal orbits
  • Oil film friction/power loss
  • Oil leakage flow rates
Learn more about tribology at SwRI

Related Terminology

bearing forces  •  minimum oil film thickness  •  oil film pressure  •  journal orbits  •  oil film friction  •  power loss  •  oil leakage flow rates  •  oil film temperature rise  •  oil film wet region  •  cavitation areas  •  parametric solid modeling  •  finite element analysis  •  FEA  •  tribology  •  cycle simulation software"

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 9 technical divisions.