Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale
Winter and arctic conditions set specific requirements for ship design in the form of icecovered water. One major aspect is propeller and propulsion design for ice conditions. The propeller-ice interaction has been widely studied over the years and there are current regulations among classification...
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International Conference on Port and Ocean Engineering Under Arctic Conditions
2017
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ftvttcrispub:oai:cris.vtt.fi:publications/fb771d10-31fd-4742-89d7-237b7b628fc4 2023-05-15T14:22:17+02:00 Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale Kinnunen, Aki Turunen, Ttuomas Koskinen, Pekka Heinonen, Jaakko 2017 https://cris.vtt.fi/en/publications/fb771d10-31fd-4742-89d7-237b7b628fc4 http://www.scopus.com/inward/record.url?scp=85040925402&partnerID=8YFLogxK http://www.poac.com/Papers/2017/pdf/POAC17_061_Aki.pdf eng eng International Conference on Port and Ocean Engineering Under Arctic Conditions info:eu-repo/semantics/openAccess Kinnunen , A , Turunen , T , Koskinen , P & Heinonen , J 2017 , Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale . in Proceedings of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions . International Conference on Port and Ocean Engineering Under Arctic Conditions , POAC Proceedings , vol. 24 , 24th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2017 , Busan , Korea, Republic of , 11/06/17 . < http://www.poac.com/Papers/2017/pdf/POAC17_061_Aki.pdf > full-scale measurements propeller ice torque response simulation contributionToPeriodical 2017 ftvttcrispub 2022-10-13T13:50:08Z Winter and arctic conditions set specific requirements for ship design in the form of icecovered water. One major aspect is propeller and propulsion design for ice conditions. The propeller-ice interaction has been widely studied over the years and there are current regulations among classification societies to ensure safety of ice-going vessel propulsion design. The design process involves propeller dimensioning for ice loads as well as rest of the propulsion line. The propeller-ice interaction causes torque loading to the propulsion system. This is dynamic in nature and is somehow to be dealt with in design phase. In this paper, the principle of dynamic propulsion shaft line model is presented, the model is validated with ship design torsional vibration analysis calculations and the time domain response calculation is performed with ice class requirements, and these results are compared with full scale measurements. In full scale tests, the propulsion shaft line input torque from propulsion motor was measured simultaneously with rotating speed. By comparing the measured and simulated dynamic response, it is possible to backward determine the magnitude of ice torque excitation. In conclusion, the propulsion shaft line dynamic ice-induced torque response in the measurements was significant, even so that the ice class required excitation level for simulation was underestimating the torque response level encountered in measurements. Other Non-Article Part of Journal/Newspaper Arctic Arctic VTT's Research Information Portal Arctic |
institution |
Open Polar |
collection |
VTT's Research Information Portal |
op_collection_id |
ftvttcrispub |
language |
English |
topic |
full-scale measurements propeller ice torque response simulation |
spellingShingle |
full-scale measurements propeller ice torque response simulation Kinnunen, Aki Turunen, Ttuomas Koskinen, Pekka Heinonen, Jaakko Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
topic_facet |
full-scale measurements propeller ice torque response simulation |
description |
Winter and arctic conditions set specific requirements for ship design in the form of icecovered water. One major aspect is propeller and propulsion design for ice conditions. The propeller-ice interaction has been widely studied over the years and there are current regulations among classification societies to ensure safety of ice-going vessel propulsion design. The design process involves propeller dimensioning for ice loads as well as rest of the propulsion line. The propeller-ice interaction causes torque loading to the propulsion system. This is dynamic in nature and is somehow to be dealt with in design phase. In this paper, the principle of dynamic propulsion shaft line model is presented, the model is validated with ship design torsional vibration analysis calculations and the time domain response calculation is performed with ice class requirements, and these results are compared with full scale measurements. In full scale tests, the propulsion shaft line input torque from propulsion motor was measured simultaneously with rotating speed. By comparing the measured and simulated dynamic response, it is possible to backward determine the magnitude of ice torque excitation. In conclusion, the propulsion shaft line dynamic ice-induced torque response in the measurements was significant, even so that the ice class required excitation level for simulation was underestimating the torque response level encountered in measurements. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Kinnunen, Aki Turunen, Ttuomas Koskinen, Pekka Heinonen, Jaakko |
author_facet |
Kinnunen, Aki Turunen, Ttuomas Koskinen, Pekka Heinonen, Jaakko |
author_sort |
Kinnunen, Aki |
title |
Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
title_short |
Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
title_full |
Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
title_fullStr |
Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
title_full_unstemmed |
Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
title_sort |
propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale |
publisher |
International Conference on Port and Ocean Engineering Under Arctic Conditions |
publishDate |
2017 |
url |
https://cris.vtt.fi/en/publications/fb771d10-31fd-4742-89d7-237b7b628fc4 http://www.scopus.com/inward/record.url?scp=85040925402&partnerID=8YFLogxK http://www.poac.com/Papers/2017/pdf/POAC17_061_Aki.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Kinnunen , A , Turunen , T , Koskinen , P & Heinonen , J 2017 , Propulsion shaft line ice-induced dynamic torque response calculation and comparison to full scale . in Proceedings of the 24th International Conference on Port and Ocean Engineering under Arctic Conditions . International Conference on Port and Ocean Engineering Under Arctic Conditions , POAC Proceedings , vol. 24 , 24th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2017 , Busan , Korea, Republic of , 11/06/17 . < http://www.poac.com/Papers/2017/pdf/POAC17_061_Aki.pdf > |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766294913727594496 |