Sensitivity Analysis of Ship Manoeuvring Mathematical Models
Sensitivity analysis is applied to ship manoeuvring mathematical models as a means of dealing with model uncertainties, and often leads to model simplifications. A rather standard 3DOF manoeuvring model was tuned with the available results of full-scale trials of a naval combatant and was further us...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/2/416 |
| _version_ | 1797620060709191680 |
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| author | P. Pires da Silva Serge Sutulo C. Guedes Soares |
| author_facet | P. Pires da Silva Serge Sutulo C. Guedes Soares |
| author_sort | P. Pires da Silva |
| collection | DOAJ |
| description | Sensitivity analysis is applied to ship manoeuvring mathematical models as a means of dealing with model uncertainties, and often leads to model simplifications. A rather standard 3DOF manoeuvring model was tuned with the available results of full-scale trials of a naval combatant and was further used as the reference model for sensitivity analysis. The present research was based on multiple perturbed simulations of the turning, zigzag and spiral manoeuvres. A salient feature of the present study is that the perturbations were applied to the total hydrodynamic forces and moments as well as separately to their characteristic parts, i.e., to the linear and nonlinear single-variable and coupled components. Another special feature is that the deviations of the perturbated responses were estimated not only considering the standard manoeuvring performance indices, but also through application of the Euclidean metric directly to the time histories and to the spiral curve. The performed analysis permitted the sensitivity of the model to be traced to various parameters and groups thereof. It was established that the highest sensitivity of the model was to linear and some nonlinear multivariable parameters, and the Euclidean metric permitted a more detailed analysis than that based only on standard discrete manoeuvring indices. The obtained results are expected to be useful in the application of system identification methods to typical inherently stable fast surface-displacement ships. |
| first_indexed | 2024-03-11T08:36:05Z |
| format | Article |
| id | doaj.art-ca71c353d6c74d498349cff184a0bda8 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-11T08:36:05Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-ca71c353d6c74d498349cff184a0bda82023-11-16T21:28:50ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-02-0111241610.3390/jmse11020416Sensitivity Analysis of Ship Manoeuvring Mathematical ModelsP. Pires da Silva0Serge Sutulo1C. Guedes Soares2Portuguese Navy Research Center (CINAV), Portuguese Naval Academy, 2810-001 Almada, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, PortugalSensitivity analysis is applied to ship manoeuvring mathematical models as a means of dealing with model uncertainties, and often leads to model simplifications. A rather standard 3DOF manoeuvring model was tuned with the available results of full-scale trials of a naval combatant and was further used as the reference model for sensitivity analysis. The present research was based on multiple perturbed simulations of the turning, zigzag and spiral manoeuvres. A salient feature of the present study is that the perturbations were applied to the total hydrodynamic forces and moments as well as separately to their characteristic parts, i.e., to the linear and nonlinear single-variable and coupled components. Another special feature is that the deviations of the perturbated responses were estimated not only considering the standard manoeuvring performance indices, but also through application of the Euclidean metric directly to the time histories and to the spiral curve. The performed analysis permitted the sensitivity of the model to be traced to various parameters and groups thereof. It was established that the highest sensitivity of the model was to linear and some nonlinear multivariable parameters, and the Euclidean metric permitted a more detailed analysis than that based only on standard discrete manoeuvring indices. The obtained results are expected to be useful in the application of system identification methods to typical inherently stable fast surface-displacement ships.https://www.mdpi.com/2077-1312/11/2/416sensitivity analysisuncertaintyindirect method<i>L</i><sub>2</sub> metricmanoeuvring model of a naval combatant |
| spellingShingle | P. Pires da Silva Serge Sutulo C. Guedes Soares Sensitivity Analysis of Ship Manoeuvring Mathematical Models Journal of Marine Science and Engineering sensitivity analysis uncertainty indirect method <i>L</i><sub>2</sub> metric manoeuvring model of a naval combatant |
| title | Sensitivity Analysis of Ship Manoeuvring Mathematical Models |
| title_full | Sensitivity Analysis of Ship Manoeuvring Mathematical Models |
| title_fullStr | Sensitivity Analysis of Ship Manoeuvring Mathematical Models |
| title_full_unstemmed | Sensitivity Analysis of Ship Manoeuvring Mathematical Models |
| title_short | Sensitivity Analysis of Ship Manoeuvring Mathematical Models |
| title_sort | sensitivity analysis of ship manoeuvring mathematical models |
| topic | sensitivity analysis uncertainty indirect method <i>L</i><sub>2</sub> metric manoeuvring model of a naval combatant |
| url | https://www.mdpi.com/2077-1312/11/2/416 |
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