TY - JOUR
T1 - Atomic-scale friction control by vibration using friction force microscope
AU - Guo, Yi
AU - Wang, Zheng
AU - Qu, Zhihua
AU - Braiman, Yehuda
PY - 2011/11
Y1 - 2011/11
N2 - Manipulation of friction at the nanoscale has been traditionally approached by chemical means (lubrication). Recent friction force microscopy (FFM) experiments demonstrated that it can be done mechanically by applying vibration to accessible elements of the system. This paper provides analytic understanding on why vibration can reduce friction based on a 1D model imitating the FFM tip moving on a substrate. Open-loop stability is first studied, and a feedback vibration control is then designed using the accessible variable. Comparing to the open-loop system, friction force is significantly reduced in the closed-loop system. Numerical simulations show satisfactory performances.
AB - Manipulation of friction at the nanoscale has been traditionally approached by chemical means (lubrication). Recent friction force microscopy (FFM) experiments demonstrated that it can be done mechanically by applying vibration to accessible elements of the system. This paper provides analytic understanding on why vibration can reduce friction based on a 1D model imitating the FFM tip moving on a substrate. Open-loop stability is first studied, and a feedback vibration control is then designed using the accessible variable. Comparing to the open-loop system, friction force is significantly reduced in the closed-loop system. Numerical simulations show satisfactory performances.
KW - Friction
KW - Friction force microscope
KW - Nano-scale systems
KW - Nonlinear control
KW - Vibration
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U2 - 10.1016/j.conengprac.2011.07.014
DO - 10.1016/j.conengprac.2011.07.014
M3 - Article
AN - SCOPUS:80053612910
SN - 0967-0661
VL - 19
SP - 1387
EP - 1397
JO - Control Engineering Practice
JF - Control Engineering Practice
IS - 11
ER -