Emmanuel Wornyoh Ph.D.

, wornyoh@uwm.edu
(414) 229-4525
Eng & Math Sciences 1261
Assistant Professor
Mechanical Engineering

Education:

  • Ph.D., Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, 2009
  • M.S, Mechanical Engineering, Texas A&M University, College-Station, 2003
  • B.Sc., (Honors)- Mechanical Engineering, Kwame Nkrumah University of Science & Technology, Kumasi-Ghana, 1999

 

Research Focus:

•             Fundamental Tribodynamics.

•             Novel solid lubrication schemes.

•             Frictional heat generation.

•             Nanotribology.

•             Green tribology.

•             Energy diagnostics.

•             Industrial energy assessment.

 

Publications:

  • Wornyoh, E. Y. A., and Higgs, C. F., 2011, "An Asperity-Based Fractional Coverage Model for Transfer Films on a Tribological Surface," Wear, 270(3-4), pp. 127-139.
  • Wornyoh, E. Y. A., Patel, D. K., and Schuessler, L. D., 2011, "An in Situ Mechanism for the Optimal Cooling of Oil-Lubricated Rolling Element Bearings and Planetary Gear Systems," ASME/IMECE 2011, Paper No. IMECE2011-61614.
  • Wornyoh, E. Y. A., Schuessler, L. D., Patel, D. K., and Francis, A. B., 2011, "Improving Planetary Gear System Thermal Compliance through in Situ Cooling," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61209.
  • Wornyoh, E. Y. A., Reeves, C. J., and Doede, M. M., 2011, "Characterizing the Tribological Performance of Powder-Lubricated Rolling Element Bearings," Proceedings of the ASME/ IJTC, Paper No.  IJTC2011-61204.
  • Wornyoh, E. Y. A., Patel, D. K., Schuessler, L. D., Francis, A. B., and Garnett, C. S., 2011, "Improving Rolling Element Bearing Thermal Compliance through in Situ Cooling," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61210.
  • Wornyoh, E. Y. A., Menezes, P. L., and Lovell, M. R., 2011, "The Tribological Perofrmance of Green Shea Butter," Proceedings of the ASME/IJTC Paper No. IJTC2011-61211.
  • Wornyoh, E. Y. A., and Gilaki, M., 2011, "A Review of Friction-Induced Thermomechanical Instability," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61206.
  • Wornyoh, E. Y. A., Chen, J., Reeves, C. J., Francis, A. B., Doede, M. M., and Mao, S., 2011, "On the Superlubricity of Graphene Oxide Coatings," Proceedings of the ASME/ IJTC, Paper No. IJTC2011-61207, Los Angeles, CA.
  • Menezes, P. L., Wornyoh, E. Y. A., and Lovell, M. R., 2011, "On the Size Effect of Boron Nitride Particles on Tribological Perofrmance," Proceedings of the ASME/IJTC, Paper No. IJTC2011-61212.
  • Wornyoh, E. Y. A., Patel, D. K., Schuessler, L. D., Francis, A. B., and Garnett, C. S.,2011, "Improving Rolling Element Bearing Thermal Compliance through in Situ Cooling," Proc. STLE/ASME International Joint Tribology Conference, Paper No.  IJTC2011-61210.
  • Michael Nosonovsky, Vahid Hejazi, Emmanuel Wornyoh, Pradeep K. Rohatgi, and Aniedi E. Nyong, 2011, “Sustainable Lotus-Effect Metal Matrix Composites and Influence on the Contact Angle,” Proc. STLE/ASME International Joint Tribology Conference, Paper No.  IJTC2011-61230.
  • Wornyoh, E. Y. A., Higgs III, C. F., and Pudjoprawoto, R., "On the Influence of Friction on Velocity at a Powder-Lubricated Slider-Disk Interface: Experimentation," Proc. STLE/ASME 2010 International Joint Tribology Conference, IJTC2010, October 17, 2010 - October 20, 2010, American Society of Mechanical Engineers, pp. 449-451.
  • E.Y.A. Wornyoh, P.S. Dougherty, and C.F. Higgs, III, 2009, “A Study of Green (Environmentally-Benign) Transfer Films through the Tribo-comminution of Powder Pellets: Experimentation and Modeling,” Proceedings of AIChE Annual General Meeting, Nashville, TN.
  • Higgs III, C. F., and Wornyoh, E. Y. A., 2008, "An in Situ Mechanism for Self-Replenishing Powder Transfer Films: Experiments and Modeling," Wear, 264(1-2), pp. 131-138.
  • Wornyoh, E., and Higgs, C.F., III., 2008, “Evaluating the Mode of In Situ Powder Film Transfer on a Tribosurface: Modeling and Experiments,” STLE Annual General Meeting, Cleveland, OH.
  • Wornyoh, E. Y. A., Jasti, V. K., and Higgs III, C. F., 2007, "A Review of Dry Particulate Lubrication: Powder and Granular Materials," Journal of Tribology, 129(2), pp. 438-449.
  • Wornyoh, E. Y. A., and Higgs III, C. F., "An Asperity-Based Fractional Coverage Model for Solid Lubricant Film Transfer on a 3D Surface," Proc. 2007 ASME/STLE International Joint Tribology Conference, IJTC 2007, October 22, 2007 - October 24, 2007, American Society of Mechanical Engineers, pp. 937-938.
  • Wornyoh, E. Y. A., and Higgs III, C. F., "Self-Replenishing, Self-Repairing Solid Lubrication: Modelling and Experimentation," Proc. 2005 World Tribology Congress III, September 12, 2005 - September 16, 2005, American Society of Mechanical Engineers, pp. 409-410.