Atomic-scale friction control by vibration using friction force microscope

    Authors

    Y. Guo; Z. Wang; Z. H. Qu;Y. Braiman

    Comments

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    Abbreviated Journal Title

    Control Eng. Practice

    Keywords

    Nonlinear control; Friction; Vibration; Nano-scale systems; Friction; force microscope; NONLINEAR-SYSTEMS; DRY FRICTION; SLIDING FRICTION; DYNAMICS; NANOTRIBOLOGY; MONOLAYERS; DITHER; MOTION; MODEL; Automation & Control Systems; Engineering, Electrical & Electronic

    Abstract

    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. (C) 2011 Elsevier Ltd. All rights reserved.

    Journal Title

    Control Engineering Practice

    Volume

    19

    Issue/Number

    11

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    1387

    Last Page

    1397

    WOS Identifier

    WOS:000296680400012

    ISSN

    0967-0661

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