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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ftdoajarticles:oai:doaj.org/article:d660a014cc4e4b75a76c5fc582400d18 2023-05-15T13:53:52+02:00 Data for indirect load case estimation of ice-induced moments from shaft line torque measurements R.J.O. de Waal A. Bekker P.S. Heyns 2018-08-01T00:00:00Z https://doi.org/10.1016/j.dib.2018.05.115 https://doaj.org/article/d660a014cc4e4b75a76c5fc582400d18 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2352340918306218 https://doaj.org/toc/2352-3409 2352-3409 doi:10.1016/j.dib.2018.05.115 https://doaj.org/article/d660a014cc4e4b75a76c5fc582400d18 Data in Brief, Vol 19, Iss , Pp 1222-1236 (2018) Computer applications to medicine. Medical informatics R858-859.7 Science (General) Q1-390 article 2018 ftdoajarticles https://doi.org/10.1016/j.dib.2018.05.115 2022-12-31T01:16:26Z 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. Article in Journal/Newspaper Antarc* Antarctica Sea ice Directory of Open Access Journals: DOAJ Articles Data in Brief 19 1222 1236 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Computer applications to medicine. Medical informatics R858-859.7 Science (General) Q1-390 |
spellingShingle |
Computer applications to medicine. Medical informatics R858-859.7 Science (General) Q1-390 R.J.O. de Waal A. Bekker P.S. Heyns Data for indirect load case estimation of ice-induced moments from shaft line torque measurements |
topic_facet |
Computer applications to medicine. Medical informatics R858-859.7 Science (General) Q1-390 |
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. |
format |
Article in Journal/Newspaper |
author |
R.J.O. de Waal A. Bekker P.S. Heyns |
author_facet |
R.J.O. de Waal A. Bekker P.S. Heyns |
author_sort |
R.J.O. de Waal |
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 |
https://doi.org/10.1016/j.dib.2018.05.115 https://doaj.org/article/d660a014cc4e4b75a76c5fc582400d18 |
genre |
Antarc* Antarctica Sea ice |
genre_facet |
Antarc* Antarctica Sea ice |
op_source |
Data in Brief, Vol 19, Iss , Pp 1222-1236 (2018) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2352340918306218 https://doaj.org/toc/2352-3409 2352-3409 doi:10.1016/j.dib.2018.05.115 https://doaj.org/article/d660a014cc4e4b75a76c5fc582400d18 |
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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1766259333435228160 |