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Lookup NU author(s): Professor Pengfei LiuORCiD
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
An innovative numerical tool has been developed to assess the effects of propeller-ice interaction on the loadsacting on the propellers. The loads are calculated as the sum of the separable hydrodynamic loads, the inseparablehydrodynamic loads and the ice contact loads. The separable hydrodynamic loads are the loads acting onthe propeller in ice-free water whereas the inseparable hydrodynamic loads act on the propeller due to the iceblockage effect. Both of these loads are calculated by a panel based code. The ice-contact loads, i.e. the loadsoriginating from the physical contact between the ice particles and the propeller, have a significant contributionto the total loads acting on the propeller and are calculated using the empirical formulae. The calculated loadsare transferred to a commercial Finite Element Solver that calculates the stresses and strains developed by thesaid loads across the propeller blades. Several interaction scenarios are modeled & compared, and the effect ofvarious parameters is quantified. The simulation tool is calibrated based on the results from a model testcampaign in which a linear feeding device is used to guide ice floes into a rotating model propeller to be milledunder controlled conditions.
Author(s): Khan A, Hisette Q, Streckwall H, Liu P
Publication type: Article
Publication status: Published
Journal: Ocean Engineering
Year: 2020
Volume: 216
Print publication date: 15/11/2020
Online publication date: 18/09/2020
Acceptance date: 27/06/2020
Date deposited: 23/10/2020
ISSN (print): 0029-8018
ISSN (electronic): 1873-5258
Publisher: Elsevier Ltd
URL: https://doi.org/10.1016/j.oceaneng.2020.107716
DOI: 10.1016/j.oceaneng.2020.107716
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