Directory

 

 
 
General InformationPublicationsResearch Projects

  • Liming Chang, Y.R. Jeng and Q. Yu, 2016, "Parametric analysis of rolling/sliding line contacts under boundary and near boundary lubrication conditions", Tribology Transactions
  • Liming Chang, Y.R. Jeng and Q. Yu, 2016, "A unified mixed-lubrication model of rolling/sliding line contacts from elastohydrodynamic lubrication to boundary lubrication", Proc. IMechE Part J: Journal of Engineering Tribology
  • Q. Yu, Liming Chang and Y. R. Jeng, 2015, "A mathematical model for rolling/sliding line contacts in boundary and near boundary lubrication", Proc. IMechE Part J: Journal of Engineering Tribology
  • Liming Chang and Y. R. Jeng, 2014, "A mathematical model for the mixed lubrication of non-conformable contacts with asperity friction, plastic deformation, flash temperature and tribo-chemistry", ASME Journal of Tribology, 136, pp. 022301
  • Q. Lu, S. McIntyre, Liming Chang, R. Bill and R. Kunz, 2014, "A boundary lubrication model including surface-film failure for gear contact analysis under loss of lubrication conditions"
  • Liming Chang and Y. R. Jeng, 2014, "Parametric analyses of the mixed-lubrication performance of rolling/sliding contacts in high-load and high-speed conditions", Tribology Transactions, 57, pp. 879-889
  • S. McIntyre, Q. Yu, R. Kunz, Liming Chang and R. Bill, 2014, "A computational system model for gearbox loss-of-lubrication"
  • Liming Chang and Y. Yan, 2013, "A theory of the hydrodynamic film thickness in centrally pivoted oil-lubricated plane-pad thrust bearings", Tribology Transactions, 56, pp. 149-160
  • Liming Chang and Y. R. Jeng, 2013, "Effects of negative skewness of surface roughness on the contact and lubrication of nominally flat metallic surfaces", IMech, Part J: Journal of Engineering Tribology, 227, pp. 559-569
  • Liming Chang, Y. R. Jeng and P. Y. Huang, 2013, "Modeling and analysis of the meshing losses of involute spur gears in high-speed and high-load conditions", ASME Journal of Tribology, 135, (1)
  • Liming Chang and Y. R. Jeng, 2013, "A mathematical model for the mixed lubrication of non-conformable contacts with asperity friction, plastic deformation, flash temperature and tribo-chemistry", ASME Journal of Tribology
  • S. McIntyre, Q. Yu, R. Kunz, Liming Chang and R. Bill, 2013, "A complete system model for gearbox loss-of-lubrication"
  • Q. Yu, S. McIntyre, Liming Chang, R. Bill and R. Kunz, 2013, "A boundary lubrication model including surface-film failure for gear contact analysis under loss of lubrication conditions"
  • Liming Chang and H. Zhang, 2012, "Modeling and parametric study of fatty-acids boundary lubrication in nominally flat contacts of metallic surfaces", STLE Tribology Transactions, 55, pp. 376-386
  • R. A. Naffin and Liming Chang, 2010, "An analytical model for the basic design calculations of journal bearings", ASME Journal of Tribology, 132, pp. 024503
  • Liming Chang and H. Zhang, 2010, "On the state and severity of frictional sliding contacts between nominally flat metallic surfaces", IMech Journal of Engineering Tribology, 224, pp. 427-438
  • Liming Chang, 2010, "A baseline theory for the design of oil-lubricated centrally pivoted plane-pad thrust bearings", ASME Journal of Tribology, 132, pp. 041703
  • Liming Chang, 2009, "Effects of thermal induced inhomogeneous shear and surface thermal boundary conditions on the shear stress in sliding elastohydrodynamic contacts", Lubrication Science, 21, pp. 227-240
  • Liming Chang, 2009, "Determination of the sampling interval in the surface roughness measurements with implications to engineering tribo-surface characterization and evaluation", IMech Journal of Engineering Tribology, 223, pp. 675-681
  • H. Zhang and Liming Chang, 2008, "An asperity-based mathematical model for the boundary lubrication of nominally flat metallic contacts", Lubrication Science, 20, pp. 1-19
  • Liming Chang, 2008, "Modeling of asperity collisions and their effects in a frictionless sliding contact of nominally flat metallic surfaces", ASME Journal of Tribology, 130, pp. 031403
  • Liming Chang, 2007, "On the CMP material removal at the molecular scale", ASME Journal of Tribology, 129, pp. 436-437
  • Liming Chang and H. Zhang, 2007, "A mathematical model for frictional elastic-plastic sphere-on-flat contacts at sliding incipient", ASME Journal of Applied Mechanics, 74, pp. 100-106
  • S. Qu, Liming Chang, M. N. Webster and A. Jackson, 2006, "On the mechanisms of the reduction in EHL traction at low temperature", Tribology Transactions, 49, pp. 182-191
  • Liming Chang, 2006, "A parametric analysis of the thermal shear localization in elastohydrodynamic lubrication films", ASME Journal of Tribology, 128, pp. 79-84
  • Liming Chang, H. Zhang and J. Lococo, 2006, "Effects of boundary films on the frictional behavior of rough-surface contacts in incipient sliding", IMeche Engineering Tribology, 220, pp. 385-394
  • M. N. Webster, G. H. Lee and Liming Chang, 2006, "Effect of EHL conditions on the behavior of traction fluids", Tribology Transactions, 49, pp. 439-448
  • Liming Chang, 2006, "Platform for modeling the boundary lubrication of nominally flat metallic contacts", ASME Journal of Tribology, 128, pp. 677-680
  • Liming Chang, 2005, "On the shear bands and shear localizations in elastohydrodynamic lubrication films", ASME Journal of Tribology, 127, (1), pp. 245-247
  • Liming Chang and H. Zhang, 2005, "On the two points of views of plastically deformed asperity contacts with friction loading", IMechE J. Engineering Tribology, 219, (13), pp. 201-208
  • H. Zhang, Liming Chang, M. N. Webster and A. Jackson, 2003, "Effects of friction on the contact and deformation behavior in sliding asperity contacts", Tribology Transactions, 46, (4), pp. 514-521
  • H. Zhang, Liming Chang, M. N. Webster and A. Jackson, 2003, "A micro-contact model for boundary lubrication with lubricant/surface physio-chemistry", ASME Journal of Tribology, 125, (1), pp. 8-15
  • Y. Zhao, Liming Chang and S. Kim, 2003, "A mathematical model for chemical-mechanical polishing based on formation and removal of weakly bonded molecular species", Wear, pp. 332-339
  • Y. Zhao and Liming Chang, 2002, "A micro-contact and wear model for chemical-mechanical polishing of silicon wafers", Wear, 252, pp. 220-226
  • Y. Zhao and Liming Chang, 2001, "A model of asperity interactions in elastic-plastic contact of rough surfaces", Journal of Tribology, 123, (4), pp. 857-864
  • X. Zhai and Liming Chang, 2001, "Some insights into asperity temperatures in mixed-film lubrication", Tribology International, 34, (6), pp. 381-387
  • N. Fang, Liming Chang, G. Johnston, M. Webster and A. Jackson, 2001, "An experimental/theoretical approach to modelling the viscous behaviour of liquid lubricants in elastohydrodynamic lubrication contacts", Proc. Instn. Mech. Engrs. Part J, 215, pp. 311-318
  • Liming Chang, Y. Zhao, P. Hall, R. Thom and C. Moore, 2001, "On heat generation in rolling contacts under boundary and mixed lubrication", Journal of Tribology, 123, (1), pp. 61-66
  • N. Fang, Liming Chang, A. Jackson and M. Webster, 2000, "A non-averaging method of determining the rheological properties of traction fluids", Tribology International, 33, (11), pp. 751-760
  • N. Fang, Liming Chang, G. Johnston, M. Webster and A. Jackson, 2000, "An experimental/theoretical approach to modeling the viscous behavior of liquid lubricants under EHL conditions", 27th Leeds-Lyon Symposium on Tribology
  • Liming Chang, 2000, "A simple and accurate method to calculate transient EHL film thickness in machine components undergoing operation cycles", Tribology Transactions, 43, (1), pp. 116-122
  • Liming Chang and Y. Zhao, 2000, "On the sensitivity of the asperity pressures and temperatures to the fluid pressure distribution in mixed-film lubrication", Journal of Tribology, 122, (1), pp. 77-85
  • Y. Zhao, D. Maietta and Liming Chang, 2000, "An asperity microcontact model incorporating the transition from elastic deformation to fully plastic flow", Journal of Tribology, 122, (1), pp. 86-93
  • X. Zhai and Liming Chang, 2000, "A transient thermal model for mixed-film contacts", Tribology Transactions, 43, (3), pp. 427-434
  • Liming Chang, Yeau-Ren Jeng and Qingtao Yu, , "Analysis of Thermal Stability of High-Performance Rolling/Sliding Contacts in Mixed Lubrication", Tribology Transactions
 

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The Department of Mechanical and Nuclear Engineering at Penn State is one of the nation’s largest and most successful engineering departments. We serve more than 1,000 undergraduate students and more than 330 graduate students

We offer B.S. degrees in mechanical engineering and nuclear engineering as well as resident (M.S., Ph.D.) and online (M.S., M.Eng.) graduate degrees in nuclear engineering and mechanical engineering. MNE's strength is in offering hands-on experience in highly relevant research areas, such as energy, homeland security, biomedical devices, and transportation systems.

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