Nonlinear dynamics of atomic force microscopy with intermittent contact

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	Nonlinear dynamics of atomic force microscopy with intermittent contact
	Zhang Y(张吟); Zhao YP(赵亚溥)
刊名	Chaos, Solitons & Fractals
	2007
通讯作者邮箱	yzhao@lnm.imech.ac.cn
卷号	34 期号:4 页码:1021-1024
关键词	System Mode
ISSN号	0960-0779
通讯作者	Zhao, YP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
中文摘要	When the atomic force microscopy (AFM) in tapping mode is in intermittent contact with a soft substrate, the contact time can be a significant portion of a cycle, resulting in invalidity of the impact oscillator model, where the contact time is assumed to be infinitely small. Furthermore, we demonstrate that the AFM intermittent contact with soft substrate can induce the motion of higher modes in the AFM dynamic response. Traditional ways of modeling AFM (one degree of freedom (DOF) system or single mode analysis) are shown to have serious mistakes when applied to this kind of problem. A more reasonable displacement criterion on contact is proposed, where the contact time is a function of the mechanical properties of AFM and substrate, driving frequencies/amplitude, initial conditions, etc. Multi-modal analysis is presented and mode coupling is also shown. (c) 2006 Published by Elsevier Ltd.
类目[WOS]	Mathematics, Interdisciplinary Applications ; Physics, Multidisciplinary ; Physics, Mathematical
研究领域[WOS]	Mathematics ; Physics
关键词[WOS]	SYSTEM ; MODE
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000247525100001
公开日期	2009-08-03 ; 2010-06-13
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/33957]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Zhang Y,Zhao YP. Nonlinear dynamics of atomic force microscopy with intermittent contact[J]. Chaos, Solitons & Fractals,2007,34(4):1021-1024.
APA	张吟,&赵亚溥.(2007).Nonlinear dynamics of atomic force microscopy with intermittent contact.Chaos, Solitons & Fractals,34(4),1021-1024.
MLA	张吟,et al."Nonlinear dynamics of atomic force microscopy with intermittent contact".Chaos, Solitons & Fractals 34.4(2007):1021-1024.