Versatility vs. retrofittability tradeoff in design of non-transport vessels
Name
PreprintRehnetal2018.pdf
Description
Submitted version
Size
621.37 KB
Format
Adobe PDF
Checksum (MD5)
e299b67808420d182354610f13e8cc36
Author(s)
Rehn, Carl Fredrik
Garcia Agis, Jose Jorge
Erikstad, Stein Ove
de Neufville, Richard L
Date Issued
November 2018
Journal
Ocean Engineering
Publisher
Elsevier Science
Citation
Rehn, Carl Fredrik et al. "Versatility vs. retrofittability tradeoff in design of non-transport vessels." Ocean Engineering 167 (November 2018): 229-238 © 2018 Elsevier Ltd.
Version
Original manuscript
Abstract
In this paper, we study the relationship between economic performance and flexibility for non-transport vessels. More specifically, we investigate the difference between two means of achieving flexibility: retrofittability and versatility, i.e., the ability of a vessel to satisfy diverse needs with or without change of physical form, respectively. A model is presented to study this relationship, where we first generate design alternatives with relevant, flexible properties before we subsequently evaluate the design alternatives based on their expected discounted economic lifecycle performance. The evaluation model is based on a two-level decomposition of the planning horizon to handle temporal complexity, using scenario planning and Epoch-Era analysis (EEA) for long-term strategic considerations, and Monte Carlo simulation and optimization for medium-term tactical ship deployment. The proposed model is applied to an offshore construction ship design case. Findings indicate that retrofittability can increase economic performance significantly for non-transport vessels operating in an uncertain heterogeneous context. Keyword: Ship design; Retrofittability; Versatility; Flexibility; Uncertainty
MIT Department
Massachusetts Institute of Technology. Institute for Data, Systems, and Society
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.oceaneng.2018.08.057
