To alleviate the flexoelectric stress concentration, an elastic rectangular plate actuated by multiple flexoelectric actuators is evaluated in this study. A line electrode placed on top of a flexoelectric patch and coupled with a bottom surface electrode layer can generate an inhomogeneous electric field when a control voltage is applied, and consequently an internal actuation stress is generated. The objective is to explore the influence of the multiple actuator placements and optimal actuation locations. A multi-actuator mathematical model with any arbitrary actuators is derived. Case studies proved that the influence of actuator locations on the modal force is modal dependent. The optimal actuation location of mode (1,1) indicates all three actuators gathering in the middle of the plate. For mode (2,1), there were two sets of optimal locations located at the peaks of its mode shape, respectively. The multi-actuator method has significant advantages on actuation capability and can alleviate the stress concentrations caused by the single-actuator method.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Distributed Multi-Flexoelectric Actuation and Control of Plates


    Contributors:
    Mu, Fan (author) / Zhongmin, Xiao (author) / Hornsen, Tzou (author)

    Published in:

    AIAA Journal ; 58 , 3 ; 1377-1385


    Publication date :

    2019-10-17


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Dynamic Analysis of Cylindrical Shells with Flexoelectric Actuation

    Han, Qiu / Yan, Deng / Mu, Fan et al. | AIAA | 2022



    Distributed multi-redundancy aircraft control surface servo actuation system

    SUN HUANYU / LUO JIANING / LIU ZHENYU et al. | European Patent Office | 2024

    Free access


    MULTI-STAGE FLOW CONTROL ACTUATION

    CLINGMAN DAN JOHN / WHALEN EDWARD ANDREW | European Patent Office | 2016

    Free access