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Dynamics modeling and loads analysis...

Jonkman, Jason Mark.

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Dynamics modeling and loads analysis of an offshore floating wind turbine.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Dynamics modeling and loads analysis of an offshore floating wind turbine./
Author:	Jonkman, Jason Mark.
Description:	328 p.
Notes:	Adviser: Mark J. Balas.
Contained By:	Dissertation Abstracts International68-11B.
Subject:	Engineering, Aerospace. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3284496
ISBN:	9780549315490

Dynamics modeling and loads analysis of an offshore floating wind turbine.
Jonkman, Jason Mark.

Dynamics modeling and loads analysis of an offshore floating wind turbine. - 328 p.

Adviser: Mark J. Balas.

Thesis (Ph.D.)--University of Colorado at Boulder, 2007.

The influence of conventional wind turbine blade-pitch control actions on the pitch damping of the floating turbine was also assessed.

ISBN: 9780549315490Subjects--Topical Terms:

1018395
Engineering, Aerospace.

Dynamics modeling and loads analysis of an offshore floating wind turbine.
LDR:03664nam 2200397 a 45 001 947807
005 20110524
008 110524s2007 ||||||||||||||||| ||eng d
020 $a 9780549315490
035 $a (UMI)AAI3284496
035 $a AAI3284496
040 $a UMI $c UMI
100 1 $a Jonkman, Jason Mark. $3 1271279
245 1 0 $a Dynamics modeling and loads analysis of an offshore floating wind turbine.
300 $a 328 p.
500 $a Adviser: Mark J. Balas.
500 $a Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7463.
502 $a Thesis (Ph.D.)--University of Colorado at Boulder, 2007.
520 $a The influence of conventional wind turbine blade-pitch control actions on the pitch damping of the floating turbine was also assessed.
520 $a The vast deepwater wind resource represents a potential to use offshore floating wind turbines to power much of the world with renewable energy. Many floating wind turbine concepts have been proposed, but dynamics models, which account for the wind inflow, aerodynamics, elasticity, and controls of the wind turbine, along with the incident waves, sea current, hydrodynamics, and platform and mooring dynamics of the floater, were needed to determine their technical and economic feasibility.
520 $a This work presents the development of a comprehensive simulation tool for modeling the coupled dynamic response of offshore floating wind turbines, the verification of the simulation tool through model-to-model comparisons, and the application of the simulation tool to an integrated loads analysis for one of the promising system concepts.
520 $a A fully coupled aero-hydro-servo-elastic simulation tool was developed with enough sophistication to address the limitations of previous frequency- and time-domain studies and to have the features required to perform loads analyses for a variety of wind turbine, support platform, and mooring system configurations. The simulation capability was tested using model-to-model comparisons. The favorable results of all of the verification exercises provided confidence to perform more thorough analyses.
520 $a The simulation tool was then applied in a preliminary loads analysis of a wind turbine supported by a barge with catenary moorings. A barge platform was chosen because of its simplicity in design, fabrication, and installation. The loads analysis aimed to characterize the dynamic response and to identify potential loads and instabilities resulting from the dynamic couplings between the turbine and the floating barge in the presence of combined wind and wave excitation. The coupling between the wind turbine response and the barge-pitch motion, in particular, produced larger extreme loads in the floating turbine than experienced by an equivalent land-based turbine. Instabilities were also found in the system.
520 $a Design modifications for reducing the platform motions, improving the turbine response, and eliminating the instabilities are suggested. These suggestions are aimed at obtaining cost-effective designs that achieve favorable performance while maintaining structural integrity.
590 $a School code: 0051.
650 4 $a Engineering, Aerospace. $3 1018395
650 4 $a Engineering, Marine and Ocean. $3 1019064
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0538
690 $a 0547
690 $a 0548
710 2 $a University of Colorado at Boulder. $b Aerospace Engineering. $3 1030473
773 0 $t Dissertation Abstracts International $g 68-11B.
790 $a 0051
790 1 0 $a Balas, Mark J., $e advisor
790 1 0 $a Felippa, Carlos A. $e committee member
790 1 0 $a Pao, Lucy Y. $e committee member
790 1 0 $a Robinson, Michael C. $e committee member
790 1 0 $a Sclavounos, Paul D. $e committee member
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3284496