Distributed multi-flexoelectric actuation and control of plates
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...
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sg-ntu-dr.10356-1518392021-07-23T04:45:14Z Distributed multi-flexoelectric actuation and control of plates Mu, Fan Zhongmin, Xiao Hornsen, Tzou School of Mechanical and Aerospace Engineering Engineering::Aeronautical engineering Electric Field Electrode 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. The authors thank the Natural Science Foundation of China (Grant Nos. 11702130 and 11872206), the Natural Science Foundation of Jiangsu Province (Grant No. BK20170773), the Scientific Research Foundation of Nanjing University of Aeronautics and Astronautics (Grant Nos. NUAA-NP2016203 and 56SYQR18019), and State Key Laboratory of Mechanics & Control of Mechanical Structures (NUAA-IZD1900201907 and NUAA-MCMS-0516G01) for their support. 2021-07-23T04:45:14Z 2021-07-23T04:45:14Z 2019 Journal Article Mu, F., Zhongmin, X. & Hornsen, T. (2019). Distributed multi-flexoelectric actuation and control of plates. AIAA Journal, 58(3), 1377-1385. https://dx.doi.org/10.2514/1.J058946 0001-1452 https://hdl.handle.net/10356/151839 10.2514/1.J058946 2-s2.0-85081130332 3 58 1377 1385 en AIAA Journal © 2019 the American Institute of Aeronautics and Astronautics,Inc. All rights reserved. |
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Engineering::Aeronautical engineering Electric Field Electrode Mu, Fan Zhongmin, Xiao Hornsen, Tzou Distributed multi-flexoelectric actuation and control of plates |
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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. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Mu, Fan Zhongmin, Xiao Hornsen, Tzou |
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Article |
author |
Mu, Fan Zhongmin, Xiao Hornsen, Tzou |
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Mu, Fan |
title |
Distributed multi-flexoelectric actuation and control of plates |
title_short |
Distributed multi-flexoelectric actuation and control of plates |
title_full |
Distributed multi-flexoelectric actuation and control of plates |
title_fullStr |
Distributed multi-flexoelectric actuation and control of plates |
title_full_unstemmed |
Distributed multi-flexoelectric actuation and control of plates |
title_sort |
distributed multi-flexoelectric actuation and control of plates |
publishDate |
2021 |
url |
https://hdl.handle.net/10356/151839 |
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1707050413474185216 |