机械工程哲学博士-摩擦学

摩擦学是在相对运动中相互作用的表面的科学，工程和技术。它是从摩擦，润滑和磨损的经典领域演变而来的，并且在佐治亚理工学院的乔治·伍德拉夫机械工程学院已经成为重要的研究领域达四十年之久。我们的活动分为六个主要领域：接触力学，润滑滑动界面，高压流变学，转子动力学，密封和生物摩擦学。
Tribology is the science, engineering, and technology of interacting surfaces in relative motion. It evolved from the classical fields of friction, lubrication, and wear, and has been a significant research area in the George W. Woodruff School of Mechanical Engineering at Georgia Tech for over four decades. Our activities fall into six major areas: contact mechanics, lubricated sliding interfaces, high pressure rheology, rotordynamics, seals and biotribology.<br><br>In contact mechanics our work includes the modeling of elasto-plastic rough surfaces in sliding contact, the role of scale in surface contact, heat generation, and electrical contact resistance. Research on lubricated sliding interfaces has been directed toward studies of adhesion or stiction in small scale devices such as microeletromechanical systems (MEMS) and computer disk drives, and the lubricating behavior of soft metals. In the area of high pressure rheology our laboratory provides measurements of physical properties of liquids at high pressures which support elastohydrodynamics, fluid power, engine fuel injection, polymer processing and synthesis, petroleum recovery, and investigations of the physics of viscous flow. Our work in rotordynamics includes the dynamics and diagnostics of cracked shafts, the analysis and design of bearings at the macro and nano scales, and the mechanics of viscoelastic dampers and elastic-viscoelastic vibrating shell structures. In the area of seals, our work has been directed toward the simulation and control of mechanical seals (including reactor coolant pump seals), and the modeling of elastomeric rotary and reciprocating seals as well as static seals. In biotribology, we have been characterizing the mechanical properties of cartilage in healthy and diseased joints, and investigating the mechanisms of friction in limbless animal locomotion.