TY - GEN
T1 - Power generation from galloping-based piezoaeroelastic energy harvesters for different cross-section geometries
AU - Abdelkefi, Abdessattar
AU - Yan, Zhimiao
AU - Hajj, Muhammad R.
PY - 2013
Y1 - 2013
N2 - The possibility of harvesting energy from galloping oscillations of a bluff body with different cross-section geometries attached to a cantilever beam is investigated. To convert these oscillations into electrical power, a piezoelectric transducer is attached to the transverse degree of freedom of the prismatic structure. A modal analysis that takes into consideration the placement of the piezoelectric sheet is performed to determine the exact mode shapes of the structure. Linear analysis is performed to investigate the effects of the electrical load resistance and the cross-section geometry on the onset speed of galloping. The results show that the electrical load resistance and the cross-section geometry affect significantly the onset speed of galloping. Nonlinear analysis is performed to determine the effects of the electrical load resistance, cross-section geometry, and wind speed on the system's outputs and particularly the level of the harvested power. A comparison of the performance of the different cross-sections in terms of displacement and harvested power is presented.
AB - The possibility of harvesting energy from galloping oscillations of a bluff body with different cross-section geometries attached to a cantilever beam is investigated. To convert these oscillations into electrical power, a piezoelectric transducer is attached to the transverse degree of freedom of the prismatic structure. A modal analysis that takes into consideration the placement of the piezoelectric sheet is performed to determine the exact mode shapes of the structure. Linear analysis is performed to investigate the effects of the electrical load resistance and the cross-section geometry on the onset speed of galloping. The results show that the electrical load resistance and the cross-section geometry affect significantly the onset speed of galloping. Nonlinear analysis is performed to determine the effects of the electrical load resistance, cross-section geometry, and wind speed on the system's outputs and particularly the level of the harvested power. A comparison of the performance of the different cross-sections in terms of displacement and harvested power is presented.
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U2 - 10.2514/6.2013-1698
DO - 10.2514/6.2013-1698
M3 - Conference contribution
AN - SCOPUS:84880837682
SN - 9781624102233
T3 - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
BT - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 8 April 2013 through 11 April 2013
ER -