Special Issue "Offshore Wind Structures"

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312).

Deadline for manuscript submissions: 30 June 2018

Special Issue Editor

Guest Editor
Prof. Dr. Lance Manuel

Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Texas 78712, USA
Website | E-Mail
Fax: +1 512 471 7259
Interests: reliability of offshore structures; offshore wind energy; wave energy devices; risers; floating structures; uncertainty quantification

Special Issue Information

Dear Colleagues,

While offshore wind energy generation is being considered in many regions of the world today, there remain several open and active areas of research that are seeking answers to critical questions, of which answers will accelerate the development of offshore wind energy. Some of the more prominent questions deal with reliability and safety. Related to this are considerations of the role of uncertainty in safety factor calibration and in design guidelines and standards. Validation of the same requires field studies and high-fidelity modeling of individual wind turbines and entire arrays, including interactions due to wake effects. Offshore wind turbines and support structures, depending on the marine environment and external conditions, need to consider cost-effective technologies, including the possibility of bottom-supported and floating concepts, the use of control, and the consideration of aerodynamics and structural dynamics. In some regions, tropical cyclones will need special consideration.

The focus of this Special Issue is to provide the state-of-the-art on the issues above, and a forum for presentation of recent efforts that aim to advance our knowledge in the exciting field of offshore wind energy.

Topics of interest for publication in this Special Issue include, but are not limited to, the following:

•  Bottom-supported and floating concepts and technology

•  Probabilistic design, safety factor calibration, certification

•  External conditions, design load cases

•  Field monitoring

•  Structural dynamics

•  Aerodynamic effects

•  Wakes and array effects

•  Wave loading and hydrodynamics

•  Tropical cyclones

•  Foundations

•  Operations and maintenance

I look forward to receiving your contributions in the form of research papers, state-of-the-art reviews, and case studies. Thank you!

 

Prof. Dr. Lance Manuel
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Marine Science and Engineering is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Research

Open AccessFeature PaperArticle Integrated System Design for a Large Wind Turbine Supported on a Moored Semi-Submersible Platform
J. Mar. Sci. Eng. 2018, 6(1), 9; doi:10.3390/jmse6010009
Received: 3 September 2017 / Revised: 12 December 2017 / Accepted: 3 January 2018 / Published: 12 January 2018
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Abstract
Over the past few decades, wind energy has emerged as an alternative to conventional power generation that is economical, environmentally friendly and, importantly, renewable. Specifically, offshore wind energy is being considered by a number of countries to harness the stronger and more consistent
[...] Read more.
Over the past few decades, wind energy has emerged as an alternative to conventional power generation that is economical, environmentally friendly and, importantly, renewable. Specifically, offshore wind energy is being considered by a number of countries to harness the stronger and more consistent wind resource compared to that over land. To meet the projected “20% energy from wind by 2030” scenario that was announced in 2006, 54 GW of added wind energy capacity need to come from offshore according to a National Renewable Energy Laboratory (NREL) study. In this study, we discuss the development of a semi-submersible floating offshore platform with a catenary mooring system to support a very large 13.2-MW wind turbine with 100-m blades. An iterative design process is applied to baseline models with Froude scaling in order to achieve preliminary static stability. Structural dynamic analyses are performed to investigate the performance of the new model using a finite element method approach for the tower and a boundary integral equation (panel) method for the platform. The steady-state response of the system under uniform wind and regular waves is first studied to evaluate the performance of the integrated system. Response amplitude operators (RAOs) are computed in the time domain using white-noise wave excitation; this serves to highlight nonlinear, as well as dynamic characteristics of the system. Finally, selected design load cases (DLCs) and the stochastic dynamic response of the system are studied to assess the global performance for sea states defined by wind fields with turbulence and long-crested irregular waves. Full article
(This article belongs to the Special Issue Offshore Wind Structures)
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