Multi-scale Design Of An Actuator With Thermal-mechanical Energy Conversion And Coupling

Farbod Khoshnoud

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    Design of a multi-scale actuator which employs Casimir effect
    at nano/micro scale in order to provide actuation at
    meso/macro scale is addressed in this paper. Application of
    quantum effects at nano scale is beneficial at macro scale in a
    multi-scale scheme as a novel approach in designing high
    efficient devices. Casimir effect is found only at sub-micron
    scale. However it can offer an efficient source of input to a
    system at meso/macro scale. Manipulating the Casimir energy
    by optical sources has been utilized for the first time in
    designing a multi-scale actuator, in this paper. A Casimir
    oscillator which converts mechanical work to heat due to
    friction is designed at micro/nano scale. A thermal-mechanical
    energy coupling mechanism couples the nano/micro scale
    output to the meso/macro scale in order to provide actuation.
    Although friction is considered as a waste of energy in a
    system, it can provide an ideal coupling mechanism in a multiscale
    scheme which avoids physical mechanical connections.
    The concept of thermal-mechanical coupling in multi-scale
    design of this system is inspired by the Multi-scale Nonequilibrium
    Molecular Dynamics (MS-NEMD) technique
    which couples the molecular dynamics at the molecular scale
    to the coarse-scale model at the macro scale. This paper offers
    a novel and efficient actuation system. The generated power at
    the nano/micro scale, as computed, shows the feasibility of
    designing such a multi-scale actuator.
    Original languageEnglish
    Title of host publicationProcs 2011 Canadian Congress of Applied Mechanics (2011 CANCAM)
    Publication statusPublished - 2011
    EventCanadian Congress of Applied Mechanics 2011 - Vancouver, Canada
    Duration: 5 Jun 20119 Jun 2011


    ConferenceCanadian Congress of Applied Mechanics 2011


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