Blar i SINTEF Digital på forfatter "Halvorsen-Weare, Elin Espeland"
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A Comparison of Single- and Multi-parameter Wave Criteria for Accessing Wind Turbines in Strategic Maintenance and Logistics Models for Offshore Wind Farms
Sperstad, Iver Bakken; Halvorsen-Weare, Elin Espeland; Hofmann, Matthias; Nonås, Lars Magne; Stålhane, Magnus; Wu, MingKang (Journal article; Peer reviewed, 2014)Different vessel types for transferring technicians for maintenance and inspection of offshore wind farms are often evaluated and compared by their limiting significant wave height for accessing the wind turbines. The ... -
A computer tool for optimisation and simulation of marine operations for offshore wind farm installation
Halvorsen-Weare, Elin Espeland; Fonn, Eivind; Johannessen, Kjetil Andre; Kisialiou, Yauheni; Nonås, Lars Magne; Rialland, Agathe Isabelle; Thun, Kristian (Peer reviewed; Journal article, 2021)The installation process of offshore wind farms is complex and requires a high level of coordination, agile scheduling and systematic methods. High risks and costs are involved and especially weather conditions have an ... -
Optimization in offshore supply vessel planning
Halvorsen-Weare, Elin Espeland; Fagerholt, Kjetil (Journal article; Peer reviewed, 2016)This paper considers the offshore supply vessel (OSV) planning problem, which consists of determining an optimal fleet size and mix of OSVs as well as their weekly routes and schedules for servicing offshore oil and gas ... -
The Bi-objective Mixed Capacitated General Routing Problem with Different Route Balance Criteria
Halvorsen-Weare, Elin Espeland; Savelsbergh, Martin W.P. (Journal article; Peer reviewed, 2016)In the mixed capacitated general routing problem, one seeks to determine a minimum cost set of vehicle routes serving segments of a mixed network consisting of nodes, edges, and arcs. We study a bi-objective variant of the ... -
Vessel fleet analysis for maintenance operations at offshore wind farms
Halvorsen-Weare, Elin Espeland; Gundegjerde, Christian; Halvorsen, Ina Blomseth; Hvattum, Lars Magnus; Nonås, Lars Magne (Journal article; Peer reviewed, 2013)Performing maintenance operations at offshore wind farms involves one major challenge compared with the onshore counterpart: All maintenance personnel and spare parts need to be transported from an onshore port or offshore ... -
Vessel routing and scheduling under uncertainty in the liquefied natural gas business
Halvorsen-Weare, Elin Espeland; Fagerholt, Kjetil; Rönnqvist, Mikael (Journal article; Peer reviewed, 2013)Liquefied natural gas (LNG) is natural gas transformed into liquid state for the purpose of transportation mainly by specially built LNG vessels. This paper considers a real-life LNG ship routing and scheduling problem ...