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Title: Verification of a rapid mooring and foundation design tool

Abstract

Marine renewable energy devices require mooring and foundation systems that suitable in terms of device operation and are also robust and cost effective. In the initial stages of mooring and foundation development a large number of possible configuration permutations exist. Filtering of unsuitable designs is possible using information specific to the deployment site (i.e. bathymetry, environmental conditions) and device (i.e. mooring and/or foundation system role and cable connection requirements). The identification of a final solution requires detailed analysis, which includes load cases based on extreme environmental statistics following certification guidance processes. Static and/or quasi-static modelling of the mooring and/or foundation system serves as an intermediate design filtering stage enabling dynamic time-domain analysis to be focused on a small number of potential configurations. Mooring and foundation design is therefore reliant on logical decision making throughout this stage-gate process. The open-source DTOcean (Optimal Design Tools for Ocean Energy Arrays) Tool includes a mooring and foundation module, which automates the configuration selection process for fixed and floating wave and tidal energy devices. As far as the authors are aware, this is one of the first tools to be developed for the purpose of identifying potential solutions during the initial stages of marine renewablemore » energy design. While the mooring and foundation module does not replace a full design assessment, it provides in addition to suitable configuration solutions, assessments in terms of reliability, economics and environmental impact. This article provides insight into the solution identification approach used by the module and features the verification of both the mooring system calculations and the foundation design using commercial software. Several case studies are investigated: a floating wave energy converter and several anchoring systems. It is demonstrated that the mooring and foundation module is able to provide device and/or site developers with rapid mooring and foundation design solutions to appropriate design criteria.« less

Authors:
 [1];  [1];  [2];  [2];  [2];  [3];  [1]
  1. Univ. of Exeter, Penryn (United Kingdom)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Tension Technology International Ltd, Eastbourne (United Kingdom)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1429742
Report Number(s):
SAND2017-2398J
Journal ID: ISSN 1475-0902; 651459
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
Additional Journal Information:
Journal Volume: 232; Journal Issue: 1; Journal ID: ISSN 1475-0902
Publisher:
SAGE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Weller, Sam D., Hardwick, Jon, Gomez, Steven, Heath, Jason, Jensen, Richard, Mclean, Niall, and Johanning, Lars. Verification of a rapid mooring and foundation design tool. United States: N. p., 2018. Web. doi:10.1177/1475090217721064.
Weller, Sam D., Hardwick, Jon, Gomez, Steven, Heath, Jason, Jensen, Richard, Mclean, Niall, & Johanning, Lars. Verification of a rapid mooring and foundation design tool. United States. doi:10.1177/1475090217721064.
Weller, Sam D., Hardwick, Jon, Gomez, Steven, Heath, Jason, Jensen, Richard, Mclean, Niall, and Johanning, Lars. Thu . "Verification of a rapid mooring and foundation design tool". United States. doi:10.1177/1475090217721064.
@article{osti_1429742,
title = {Verification of a rapid mooring and foundation design tool},
author = {Weller, Sam D. and Hardwick, Jon and Gomez, Steven and Heath, Jason and Jensen, Richard and Mclean, Niall and Johanning, Lars},
abstractNote = {Marine renewable energy devices require mooring and foundation systems that suitable in terms of device operation and are also robust and cost effective. In the initial stages of mooring and foundation development a large number of possible configuration permutations exist. Filtering of unsuitable designs is possible using information specific to the deployment site (i.e. bathymetry, environmental conditions) and device (i.e. mooring and/or foundation system role and cable connection requirements). The identification of a final solution requires detailed analysis, which includes load cases based on extreme environmental statistics following certification guidance processes. Static and/or quasi-static modelling of the mooring and/or foundation system serves as an intermediate design filtering stage enabling dynamic time-domain analysis to be focused on a small number of potential configurations. Mooring and foundation design is therefore reliant on logical decision making throughout this stage-gate process. The open-source DTOcean (Optimal Design Tools for Ocean Energy Arrays) Tool includes a mooring and foundation module, which automates the configuration selection process for fixed and floating wave and tidal energy devices. As far as the authors are aware, this is one of the first tools to be developed for the purpose of identifying potential solutions during the initial stages of marine renewable energy design. While the mooring and foundation module does not replace a full design assessment, it provides in addition to suitable configuration solutions, assessments in terms of reliability, economics and environmental impact. This article provides insight into the solution identification approach used by the module and features the verification of both the mooring system calculations and the foundation design using commercial software. Several case studies are investigated: a floating wave energy converter and several anchoring systems. It is demonstrated that the mooring and foundation module is able to provide device and/or site developers with rapid mooring and foundation design solutions to appropriate design criteria.},
doi = {10.1177/1475090217721064},
journal = {Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment},
number = 1,
volume = 232,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2018},
month = {Thu Feb 15 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 15, 2019
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