Abstract
Ships sailing in ice require a propeller that is able to endure both extreme loads and fatigue loads and operate efficiently in ice and open water. Knowledge and descriptions of the physical processes of propeller-ice interaction are essential to model the interaction with its dominant parameters and finally predict the loads. The research described in this paper uses an experimental setup to determine if the crushing strength of ice, or in general a solid, is a dominant parameter in propeller-ice interaction as stated in empirical and theoretical models. Warm model ice, a paraffin based material to be used at room temperature, with ex-situ tested crushing strength, density and elasticity, is supplied to an in-situ model propeller at different rpms. One blade of the propeller is equipped with a six-component load sensor. Impacts are recorded in the time domain and synchronised with high speed footage. The data is analysed to understand and explain the impact behaviour by comparing it with rotational speed, load and footage. Scaling of the warm model ice properties is discussed as well due to density differences between warm model ice and sea ice.
Original language | English |
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Title of host publication | Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, San Francisco, California, USA |
Subtitle of host publication | Polar and Arctic Science and Technology |
Editors | B. Alessandrini, A. Aubault |
Publisher | ASME |
Chapter | V010T07A019 |
Number of pages | 11 |
Volume | 10 |
ISBN (Print) | 978-0-7918-4556-1 |
DOIs | |
Publication status | Published - 2014 |
Event | ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering - New York, San Francisco, United States Duration: 8 Jun 2014 → 13 Jun 2014 Conference number: 33 |
Conference
Conference | ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering |
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Abbreviated title | OMAE 2014 |
Country/Territory | United States |
City | San Francisco |
Period | 8/06/14 → 13/06/14 |