Title

Atomic-scale friction control by vibration using friction force microscope

Authors

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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