Data for indirect load case estimation of ice-induced moments from shaft line torque measurements
During ice navigation, blade measurements of ice-induced moments on ship propellers, are challenged by the harsh operating environment. To overcome this problem, shaft line measurements are performed inboard, and the required propeller loads are subsequently estimated using a dynamic model and the s...
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ftunivpretoria:oai:repository.up.ac.za:2263/71783 2023-05-15T14:00:33+02:00 Data for indirect load case estimation of ice-induced moments from shaft line torque measurements De Waal, R.J.O. Bekker, A. Heyns, P.S. (Philippus Stephanus) 2018-05-28 http://hdl.handle.net/2263/71783 https://doi.org/10.1016/j.dib.2018.05.115 en eng Elsevier http://hdl.handle.net/2263/71783 De Waal, R.J.O., Bekker, A. & Heyns, P.S. 2018, 'Data for indirect load case estimation of ice-induced moments from shaft line torque measurements', Data in Brief, vol. 19, pp. 1222-1236. 2352-3409 doi:10.1016/j.dib.2018.05.115 © 2019 Published by Elsevier Inc. This is an open access article under the CC BY license. CC-BY Data Torque measurements Case estimation Shaft line measurements Ship propeller Ice navigation Blade measurements Article 2018 ftunivpretoria https://doi.org/10.1016/j.dib.2018.05.115 2022-05-31T13:31:35Z During ice navigation, blade measurements of ice-induced moments on ship propellers, are challenged by the harsh operating environment. To overcome this problem, shaft line measurements are performed inboard, and the required propeller loads are subsequently estimated using a dynamic model and the solution of an inverse problem. The inverse problem is mathematically ill-posed and requires the determination of the ice-induced moment on the propeller blades from shaft line measurements. Full-scale torsional response data is presented as calculated from indirect strain measurements on the shaft line of a polar supply and research vessel. The vessel operated on a 68-day voyage between Cape Town and Antarctica and spent almost 11 days in sea ice with observed concentrations above 90% and a maximum thickness of 3 m. Data for five ice-induced load cases are presented, including the shaft torque from indirect measurements and the estimated ice-induced moment, which is obtained by solving an ill-posed inverse problem. The ice-induced moments on the propeller are obtained by approximating the drive-train as a viscously damped, elastic lumped mass model. The ice-induced moment is then determined through existing approaches to solving the ill-conditioned inverse problem. The lumped mass model is presented along with algorithms to solve the inverse problem, including truncated singular value decomposition, truncated generalized singular value decomposition and Tikhonov׳s method. The resulting time series data for the inversely calculated ice-induced moments is published to provide industry with load cases for ice-going propulsion design. The National Research Foundation (NRF) through the South African National Antarctic Program (SNA14072479895, grant no. 93070). http://www.elsevier.com/locate/dib am2019 Mechanical and Aeronautical Engineering Article in Journal/Newspaper Antarc* Antarctic Antarctica Sea ice University of Pretoria: UPSpace Antarctic Data in Brief 19 1222 1236 |
institution |
Open Polar |
collection |
University of Pretoria: UPSpace |
op_collection_id |
ftunivpretoria |
language |
English |
topic |
Data Torque measurements Case estimation Shaft line measurements Ship propeller Ice navigation Blade measurements |
spellingShingle |
Data Torque measurements Case estimation Shaft line measurements Ship propeller Ice navigation Blade measurements De Waal, R.J.O. Bekker, A. Heyns, P.S. (Philippus Stephanus) Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
topic_facet |
Data Torque measurements Case estimation Shaft line measurements Ship propeller Ice navigation Blade measurements |
description |
During ice navigation, blade measurements of ice-induced moments on ship propellers, are challenged by the harsh operating environment. To overcome this problem, shaft line measurements are performed inboard, and the required propeller loads are subsequently estimated using a dynamic model and the solution of an inverse problem. The inverse problem is mathematically ill-posed and requires the determination of the ice-induced moment on the propeller blades from shaft line measurements. Full-scale torsional response data is presented as calculated from indirect strain measurements on the shaft line of a polar supply and research vessel. The vessel operated on a 68-day voyage between Cape Town and Antarctica and spent almost 11 days in sea ice with observed concentrations above 90% and a maximum thickness of 3 m. Data for five ice-induced load cases are presented, including the shaft torque from indirect measurements and the estimated ice-induced moment, which is obtained by solving an ill-posed inverse problem. The ice-induced moments on the propeller are obtained by approximating the drive-train as a viscously damped, elastic lumped mass model. The ice-induced moment is then determined through existing approaches to solving the ill-conditioned inverse problem. The lumped mass model is presented along with algorithms to solve the inverse problem, including truncated singular value decomposition, truncated generalized singular value decomposition and Tikhonov׳s method. The resulting time series data for the inversely calculated ice-induced moments is published to provide industry with load cases for ice-going propulsion design. The National Research Foundation (NRF) through the South African National Antarctic Program (SNA14072479895, grant no. 93070). http://www.elsevier.com/locate/dib am2019 Mechanical and Aeronautical Engineering |
format |
Article in Journal/Newspaper |
author |
De Waal, R.J.O. Bekker, A. Heyns, P.S. (Philippus Stephanus) |
author_facet |
De Waal, R.J.O. Bekker, A. Heyns, P.S. (Philippus Stephanus) |
author_sort |
De Waal, R.J.O. |
title |
Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
title_short |
Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
title_full |
Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
title_fullStr |
Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
title_full_unstemmed |
Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
title_sort |
data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/2263/71783 https://doi.org/10.1016/j.dib.2018.05.115 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Sea ice |
op_relation |
http://hdl.handle.net/2263/71783 De Waal, R.J.O., Bekker, A. & Heyns, P.S. 2018, 'Data for indirect load case estimation of ice-induced moments from shaft line torque measurements', Data in Brief, vol. 19, pp. 1222-1236. 2352-3409 doi:10.1016/j.dib.2018.05.115 |
op_rights |
© 2019 Published by Elsevier Inc. This is an open access article under the CC BY license. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.dib.2018.05.115 |
container_title |
Data in Brief |
container_volume |
19 |
container_start_page |
1222 |
op_container_end_page |
1236 |
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1766269722465140736 |