Nonlinear dynamics of a rack-pinion-rack device powered by the Casimir force.
Nonlinear dynamics of a rack-pinion-rack device powered by the Casimir force.
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DOI：
10.1103/physreve.81.016104
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
M. Miri;V. Nekouie;R. Golestanian
中科院分区：
文献类型：
--
作者：
M. Miri;V. Nekouie;R. Golestanian
利用横向Casimir力作为主要的力传递机制，提出了一种具有丰富动力学行为的纳米机械器件.该装置由两个平行的齿条和一个中间的小齿轮组成，齿条沿相同的方向移动，小齿轮通过非接触的侧向卡西米尔力与两个齿条耦合。装置中的内置挫折使其非常敏感，并对系统的几何参数和初始条件的微小变化做出显着反应。所提出的装置的非接触性质可以帮助解决纳米机械系统中普遍存在的磨损问题。
Using the lateral Casimir force-a manifestation of the quantum fluctuations of the electromagnetic field between objects with corrugated surfaces-as the main force transduction mechanism, a nanomechanical device with rich dynamical behaviors is proposed. The device is made of two parallel racks that are moving in the same direction and a pinion in the middle that couples with both racks via the noncontact lateral Casimir force. The built-in frustration in the device causes it to be very sensitive and react dramatically to minute changes in the geometrical parameters and initial conditions of the system. The noncontact nature of the proposed device could help with the ubiquitous wear problem in nanoscale mechanical systems.