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Simulated ice loads on a ship propeller and comparison with full-scale measurements
Citation Link: https://doi.org/10.15480/882.15365
Publikationstyp
Journal Article
Date Issued
2025-10-15
Sprache
English
Author(s)
TORE-DOI
Journal
Volume
104
Start Page
1
End Page
15
Article Number
103879
Citation
Marine structures 1 (15): 103879 (2025)
Publisher DOI
Scopus ID
Publisher
Elsevier
Peer Reviewed
true
A methodology to better estimate the loads of ice acting on the propeller of a ship is developed. Based on measurements conducted in the North Pole region, an existing failure model for ice based on the Mohr–Coulomb nodal split approach is modified to better represent the lower strength of polar ice compared to laboratory ice. The modified material model for the sea ice is used to compute the propeller torque and a load spectrum for the propeller-ice interaction of the research ship S.A. Agulhas II. To this end, a floe-ice breaking simulation is used to estimate the size and shape of the ice cusps hitting the propeller of this ship. In the next step, a set of finite element simulations of the propeller-ice interaction utilizing the modified Mohr–Coulomb nodal split model is conducted. Based on this, the load spectrum is computed and compared with the measured torque on the propeller shaft of the S.A. Agulhas II. The successful reproduction shows the applicability of the approach to better estimate the loads exerted by the ice on the propeller.
Subjects
Propeller-ice interaction
Computational mechanics
Mohr-Columb nodal split
Floe-ice breaking
Mechanical properties of polar ice
Ice-load spectrum
Ships in ice
DDC Class
623: Military Engineering and Marine Engineering
624.1: Structural Engineering
620.11: Engineering Materials
Funding(s)
ARICE - An oceanographic snapshot in the CHanging ARctiC passing thrOugh The “North Pole”
Funding Organisations
Federal Ministry for Economic Affairs and Climate Action
PONANT
More Funding Information
The authors would like to acknowledge support from:
• MarTERA - an ERA-NET Cofund scheme of Horizon 2020 of the European Commission - and the Research Council of Norway (Project No. 311502), the Federal Ministry for Economic Affairs and Climate Action of Germany (Project No. 03SX519B), and Department of Science and Technology of South Africa, through the HealthProp project
• The EU project ARICE (EU grant agreement No. 730965) Ships and Platforms of Opportunity Programme in cooperation with the company PONANT.
• MarTERA - an ERA-NET Cofund scheme of Horizon 2020 of the European Commission - and the Research Council of Norway (Project No. 311502), the Federal Ministry for Economic Affairs and Climate Action of Germany (Project No. 03SX519B), and Department of Science and Technology of South Africa, through the HealthProp project
• The EU project ARICE (EU grant agreement No. 730965) Ships and Platforms of Opportunity Programme in cooperation with the company PONANT.
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