TY - GEN
T1 - AERO- elastic/viscoelastic sensitivity analyses of piezoelectric energy harvesting part I
T2 - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
AU - Guan, Dong
AU - Saitob, Yuta
AU - Hilton, Harry H.
N1 - Funding Information:
The authors would like to thank the China Scholarship Council (Grant Number 201506280148), Program for Changjiang Scholars and Innovative Research Team in University (Grant Number IRT1172) and the National Natural Science Foundation of China (Grant Number 51375362) for providing financial support for Dong Guan. Support for H. H. Hilton by the Computing and Data Division (CDS) of the National Center for Supercomputing Applications (NCSA) and the Aerospace Engineering Department in the College of Engineering both at the University of Illinois at Urbana-Champaign (UIUC) is also gratefully acknowledged. Additionally and separately, the authors thank the Illinois Space Consortium and the NASA Undergraduate Research Opportunity Program (UROP) for awarding Yuta Saito a summer 2015 internship and the Japan Student Services Organization (JASSO) for his graduate scholarship.
Publisher Copyright:
© 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2018
Y1 - 2018
N2 - In the present paper a study is presented for parameter evolution to ascertain the relative importance of PZT’s prior to a more expansive optimization study that will be undertaken next. While diverse current and future materials may become more efficient in EMF generation, the elastic and viscoelastic analyses presented here will be the same and identical state variables will remain key players in the electrical harvesting schemes. Analyses are formulated for lifting surface motions consisting of coupled flexible plunging and twisting and rigid body rolls combined with PZT effects. The motivation is to determine potential beneficial energy harvesting or scavenging and possible adverse effects of such extracted energy on flutter, torsional divergence, control reversal velocities and material failures. The governing relations are formulated and solved describing the extraction of energy through piezoelectric (PZT) devices in elastic and viscoelastic wings, a process generally referred to as energy harvesting or scavenging. The process can be used not only to store the recovered energy but also as control device to prevent torsional divergence, fluter, control reversal, material failures, creep buckling, excessive deflections, etc. This can be accomplished by means of combinations of optimal designer viscoelastic, aerodynamic and PZT or magnetic properties. However, the requirements are diametrically opposed as energy harvesting calls for large deflections and hence more power generation, while stability demands small and limited deflections. Illustrative examples are presented and evaluated. The evolution non-optimum elastic states of several principal parameters is studied and graphed in order to obtain an assessment of their relative importance to the harvesting process as prelude to similar viscoelastic studies and their subsequent optimization of maximum harvestable energy without serious aero – piezo – elastic/viscoelastic operational performances degradations.
AB - In the present paper a study is presented for parameter evolution to ascertain the relative importance of PZT’s prior to a more expansive optimization study that will be undertaken next. While diverse current and future materials may become more efficient in EMF generation, the elastic and viscoelastic analyses presented here will be the same and identical state variables will remain key players in the electrical harvesting schemes. Analyses are formulated for lifting surface motions consisting of coupled flexible plunging and twisting and rigid body rolls combined with PZT effects. The motivation is to determine potential beneficial energy harvesting or scavenging and possible adverse effects of such extracted energy on flutter, torsional divergence, control reversal velocities and material failures. The governing relations are formulated and solved describing the extraction of energy through piezoelectric (PZT) devices in elastic and viscoelastic wings, a process generally referred to as energy harvesting or scavenging. The process can be used not only to store the recovered energy but also as control device to prevent torsional divergence, fluter, control reversal, material failures, creep buckling, excessive deflections, etc. This can be accomplished by means of combinations of optimal designer viscoelastic, aerodynamic and PZT or magnetic properties. However, the requirements are diametrically opposed as energy harvesting calls for large deflections and hence more power generation, while stability demands small and limited deflections. Illustrative examples are presented and evaluated. The evolution non-optimum elastic states of several principal parameters is studied and graphed in order to obtain an assessment of their relative importance to the harvesting process as prelude to similar viscoelastic studies and their subsequent optimization of maximum harvestable energy without serious aero – piezo – elastic/viscoelastic operational performances degradations.
KW - Aero-piezo-viscoelasticity
KW - Aero–piezo–elasticity
KW - Energy harvesting
KW - PZT
KW - Stability considerations
KW - Wing deformations during maneuvers
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U2 - 10.2514/6.2018-1469
DO - 10.2514/6.2018-1469
M3 - Conference contribution
AN - SCOPUS:85044615480
SN - 9781624105326
T3 - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2018
BT - AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
Y2 - 8 January 2018 through 12 January 2018
ER -