Human-free offshore lifting solutions

M. Leimeister, T. Balaam, P. Causon, D. Cevasco, M. Richmond, A. Kolios, F. Brennan

Research output: Contribution to journalConference article

Abstract

With single elements weighing up to hundreds of tonnes and lifted to heights of 100 meters, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. To increase safety during offshore lifts, this study focuses on solutions for human-free lifting operations. Ideas in the categories of logistics, connections, as well as guidance and control, were discussed and ranked by means of a multi-criteria decision analysis. Based upon 38 survey responses weighting 21 predefined decision criteria, the most promising concepts were selected. Logistically, pre-assembled systems would reduce the number of lifts and thus reduce the risk. A MATLAB-based code has been developed to optimise installation time, lifted weight, and number of lifts. Automated bolting and seafastening solutions have high potential to increase safety during the transport of the wind turbine elements and, additionally, speed up the process. Finally, the wind turbine should be lifted on top of the support structure without having personnel being under the load. A multi-directional mechanical guiding element has been designed and tested successfully in combination with visual guidance by cameras in a small-scale experiment.

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wind turbines
Wind turbines
personnel
Personnel
Offshore wind turbines
installing
Decision theory
safety
Weighing
MATLAB
Logistics
Cameras
logistics
maintenance
cameras
Experiments

Keywords

  • offshore energy
  • offshore wind turbines
  • tower cranes
  • safety engineering

Cite this

@article{2f72e2430deb40acaa2ebeb9a4e0f688,
title = "Human-free offshore lifting solutions",
abstract = "With single elements weighing up to hundreds of tonnes and lifted to heights of 100 meters, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. To increase safety during offshore lifts, this study focuses on solutions for human-free lifting operations. Ideas in the categories of logistics, connections, as well as guidance and control, were discussed and ranked by means of a multi-criteria decision analysis. Based upon 38 survey responses weighting 21 predefined decision criteria, the most promising concepts were selected. Logistically, pre-assembled systems would reduce the number of lifts and thus reduce the risk. A MATLAB-based code has been developed to optimise installation time, lifted weight, and number of lifts. Automated bolting and seafastening solutions have high potential to increase safety during the transport of the wind turbine elements and, additionally, speed up the process. Finally, the wind turbine should be lifted on top of the support structure without having personnel being under the load. A multi-directional mechanical guiding element has been designed and tested successfully in combination with visual guidance by cameras in a small-scale experiment.",
keywords = "offshore energy, offshore wind turbines, tower cranes, safety engineering",
author = "M. Leimeister and T. Balaam and P. Causon and D. Cevasco and M. Richmond and A. Kolios and F. Brennan",
year = "2018",
month = "10",
day = "10",
doi = "10.1088/1742-6596/1102/1/012030",
language = "English",
volume = "1102",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
number = "1",

}

Human-free offshore lifting solutions. / Leimeister, M.; Balaam, T.; Causon, P.; Cevasco, D.; Richmond, M.; Kolios, A.; Brennan, F.

In: Journal of Physics: Conference Series, Vol. 1102, No. 1, 012030, 10.10.2018.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Human-free offshore lifting solutions

AU - Leimeister, M.

AU - Balaam, T.

AU - Causon, P.

AU - Cevasco, D.

AU - Richmond, M.

AU - Kolios, A.

AU - Brennan, F.

PY - 2018/10/10

Y1 - 2018/10/10

N2 - With single elements weighing up to hundreds of tonnes and lifted to heights of 100 meters, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. To increase safety during offshore lifts, this study focuses on solutions for human-free lifting operations. Ideas in the categories of logistics, connections, as well as guidance and control, were discussed and ranked by means of a multi-criteria decision analysis. Based upon 38 survey responses weighting 21 predefined decision criteria, the most promising concepts were selected. Logistically, pre-assembled systems would reduce the number of lifts and thus reduce the risk. A MATLAB-based code has been developed to optimise installation time, lifted weight, and number of lifts. Automated bolting and seafastening solutions have high potential to increase safety during the transport of the wind turbine elements and, additionally, speed up the process. Finally, the wind turbine should be lifted on top of the support structure without having personnel being under the load. A multi-directional mechanical guiding element has been designed and tested successfully in combination with visual guidance by cameras in a small-scale experiment.

AB - With single elements weighing up to hundreds of tonnes and lifted to heights of 100 meters, offshore wind turbines can pose risks to personnel, assets, and the environment during installation and maintenance interventions. To increase safety during offshore lifts, this study focuses on solutions for human-free lifting operations. Ideas in the categories of logistics, connections, as well as guidance and control, were discussed and ranked by means of a multi-criteria decision analysis. Based upon 38 survey responses weighting 21 predefined decision criteria, the most promising concepts were selected. Logistically, pre-assembled systems would reduce the number of lifts and thus reduce the risk. A MATLAB-based code has been developed to optimise installation time, lifted weight, and number of lifts. Automated bolting and seafastening solutions have high potential to increase safety during the transport of the wind turbine elements and, additionally, speed up the process. Finally, the wind turbine should be lifted on top of the support structure without having personnel being under the load. A multi-directional mechanical guiding element has been designed and tested successfully in combination with visual guidance by cameras in a small-scale experiment.

KW - offshore energy

KW - offshore wind turbines

KW - tower cranes

KW - safety engineering

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