Abstract
The concept of energy harvesting from ambient and galloping vibrations of a bluff body with a triangular cross-section geometry is investigated. A coupled nonlinear distributed- parameter model is developed to account for the galloping force and moment nonlinearities and the base excitation. The aerodynamic loads are modeled by using the quasi-steady approximation. Interesting nonlinear phenomena including quenching and beating phenomena are observed. To characterize the system's nonlinearities, power spectra, phase portraits, and Poincare maps are used.
Original language | English |
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DOIs | |
State | Published - 2014 |
Event | 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: 13 Jan 2014 → 17 Jan 2014 |
Conference
Conference | 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 |
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Country/Territory | United States |
City | National Harbor, MD |
Period | 13/01/14 → 17/01/14 |