Data for indirect load case estimation of ice-induced moments from shaft line torque measurements
CITATION: 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, 19:1222-1236, doi:10.1016/j.dib.2018.05.115. The original publication is available at https://www.sciencedirect.com Publi...
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ftunstellenbosch:oai:scholar.sun.ac.za:10019.1/106316 2024-02-11T09:56:02+01:00 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. 2018 15 pages application/pdf http://hdl.handle.net/10019.1/106316 https://doi.org/10.1016/j.dib.2018.05.115 en_ZA eng Elsevier 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, 19:1222-1236, doi:10.1016/j.dib.2018.05.115 2352-3409 (online) doi:10.1016/j.dib.2018.05.115 http://hdl.handle.net/10019.1/106316 Authors retain copyright Ice navigation Torque -- Measurement Hydraulic torque converters Article 2018 ftunstellenbosch https://doi.org/10.1016/j.dib.2018.05.115 2024-01-23T01:34:42Z CITATION: 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, 19:1222-1236, doi:10.1016/j.dib.2018.05.115. The original publication is available at https://www.sciencedirect.com Publication of this article was funded by the Stellenbosch University Open Access Fund ENGLISH ABSTRACT: 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 ... Article in Journal/Newspaper Antarc* Antarctica Sea ice Stellenbosch University: SUNScholar Research Repository Data in Brief 19 1222 1236 |
institution |
Open Polar |
collection |
Stellenbosch University: SUNScholar Research Repository |
op_collection_id |
ftunstellenbosch |
language |
English |
topic |
Ice navigation Torque -- Measurement Hydraulic torque converters |
spellingShingle |
Ice navigation Torque -- Measurement Hydraulic torque converters De Waal, R. J. O. Bekker, A. Heyns, P. S. Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
topic_facet |
Ice navigation Torque -- Measurement Hydraulic torque converters |
description |
CITATION: 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, 19:1222-1236, doi:10.1016/j.dib.2018.05.115. The original publication is available at https://www.sciencedirect.com Publication of this article was funded by the Stellenbosch University Open Access Fund ENGLISH ABSTRACT: 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 ... |
format |
Article in Journal/Newspaper |
author |
De Waal, R. J. O. Bekker, A. Heyns, P. S. |
author_facet |
De Waal, R. J. O. Bekker, A. Heyns, P. S. |
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/10019.1/106316 https://doi.org/10.1016/j.dib.2018.05.115 |
genre |
Antarc* Antarctica Sea ice |
genre_facet |
Antarc* Antarctica Sea ice |
op_relation |
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, 19:1222-1236, doi:10.1016/j.dib.2018.05.115 2352-3409 (online) doi:10.1016/j.dib.2018.05.115 http://hdl.handle.net/10019.1/106316 |
op_rights |
Authors retain copyright |
op_doi |
https://doi.org/10.1016/j.dib.2018.05.115 |
container_title |
Data in Brief |
container_volume |
19 |
container_start_page |
1222 |
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1236 |
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