Browsing by Subject "Vibration"
Now showing items 1-6 of 6
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Aeroelastic Modeling of Blade Vibration and its Effect on the Trim and Optimal Performance of Helicopter Rotors using a Harmonic Balance Approach
(2020)This dissertation concerns the optimization of the aeroelastic performance of conventionalhelicopter rotors, considering various design variables such cyclic and higherharmonic controls. A nite element model is introduced ... -
Control of Vibratory Energy Harvesters in the Presence of Nonlinearities and Power-Flow Constraints
(2012)Over the past decade, a significant amount of research activity has been devoted to developing electromechanical systems that can convert ambient mechanical vibrations into usable electric power. Such systems, referred ... -
Modeling and Control of an Electromagentic Transducer for Vibratory Energy Harvesting Applications
(2011)The primary focus of this thesis is on the modeling and control of an electromechanical transducer to harvest energy from large structures (e.g. buildings and bridges). The transducer consists of a back-driven ballscrew ... -
Modulating unimolecular charge transfer by exciting bridge vibrations.
(J Am Chem Soc, 2009-12-23)Ultrafast UV-vibrational spectroscopy was used to investigate how vibrational excitation of the bridge changes photoinduced electron transfer between donor (dimethylaniline) and acceptor (anthracene) moieties bridged by ... -
On the Asymptotic Reduction of Classical Modal Analysis for Nonlinear and Coupled Dynamical Systems
(2016)Asymptotic Modal Analysis (AMA) is a computationally efficient and accurate method for studying the response of dynamical systems experiencing banded, random harmonic excitation at high frequencies when the number of responding ... -
Post-Buckled Stability and Modal Behavior of Plates and Shells
(2012)In modern engineering there is a considerable interest in predicting the behavior of post-buckled structures. With current lightweight, aerospace, and high performance applications, structural elements frequently operate ...
