Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Flexible Dynamics"”.
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Flexible dynamics of floating wind turbines
This work presents Tower Flex, a structural dynamics model for a coupled analysis of offshore floating wind turbines consisting of a tower, a floating platform and a mooring system. In this multi-body, linear frequency-domain model, the tower is represented as a series of uniform Timoshenko beams …
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Online Estimation of Unknown Parameters for Flexible Spacecraft
<p>Attitude controls methods of highly flexible spacecraft have seen increased interest over the last decades thanks to the technological development of flexible solar panels and deploy-ables, which improves the capabilities of small satellites. However, a high-fidelity model of the flexible mode …
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Closed-loop Reference Model adaptive control : with application to very flexible aircraft
… applicability of CRM adaptive control to very flexible aircraft is presented. Following the NASA Helios flight mishap in 2003 there has been a push for greater understanding of the aerodynamic-structural coupling that occurs in light, very flexible, flying wings. Previous efforts in that …
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Modeling the Dynamics of Flexible Aerospace Vehicles Using the Theory of Functional Connections
<p>Modeling and control of flexible vehicles is a topic of high interest in the aerospace field and a key challenge lies in finding accurate mathematical representations of the flexible dynamics of continuous elastic structures that allow simple integration into estimation and control algorithms. …
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Magnetic suspension and vibration control of flexible structures for non-contact processing
… systems for noncontact suspension and control of flexible structures. Our particular focus is on the use of such suspensions in manufacturing processes which can be facilitated by the ability to control workpiece motion without contact. This can be of significant utility in processes such as …
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Cognitive flexibility and fronto-parietal control dynamics in aging
… integrative paradigms to investigate brain dynamics related to successful performance in attention or control-demanding situations. These control-demanding processes are broadly referred to as “executive functions,” known to heavily involve the frontal cortex. The relationship between …
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Optimal docking to tumbling objects with uncertain properties
… the presence of several challenges, including 1) flexible dynamics, 2) impending collision with other proximity objects, 3) uncooperative satellites, 4) tumbling behavior, 5) uncertainty in the knowledge of this tumble, and 6) the need to maneuver at least one of the satellites through an …