Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model
This is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this study we will report our results in predicting ship motions in unsteady maneuvering in calm water. During the unsteady maneuvering, both the rudder angl...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2012/468029 |
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| author | Ray-Qing Lin Tim Smith Michael Hughes |
| author_facet | Ray-Qing Lin Tim Smith Michael Hughes |
| author_sort | Ray-Qing Lin |
| collection | DOAJ |
| description | This is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this study we will report our results in predicting ship motions in unsteady maneuvering in calm water. During the unsteady maneuvering, both the rudder angle, and ship forward speed vary with time. Therefore, not only surge, sway, and yaw motions occur, but roll, pitch and heave motions will also occur even in calm water as heel, trim, and sinkage, respectively. When the rudder angles and ship forward speed vary rapidly with time, the six degrees-of-freedom ship motions and their interactions become strong. To accurately predict the six degrees-of-freedom ship motions in unsteady maneuvering, a universal method for arbitrary ship hull requires physics-based fully-nonlinear models for ship motion and for rudder forces and moments. The numerical simulations will be benchmarked by experimental data of the Pre-Contract DDG51 design and an Experimental Hull Form. The benchmarking shows a good agreement between numerical simulations by the enhancement DiSSEL and experimental data. No empirical parameterization is used, except for the influence of the propeller slipstream on the rudder, which is included using a flow acceleration factor. |
| format | Article |
| id | doaj-art-bfe732bf81bf478aa88b60bfc1c1dfc3 |
| institution | DOAJ |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-bfe732bf81bf478aa88b60bfc1c1dfc32025-08-20T03:22:41ZengWileyModelling and Simulation in Engineering1687-55911687-56052012-01-01201210.1155/2012/468029468029Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion ModelRay-Qing Lin0Tim Smith1Michael Hughes2Hydromechanics Department, David Taylor Model Basin, NSWCCD, 9500 MacArthur Boulevard, West Bethesda, MD 20817-5700, USAHydromechanics Department, David Taylor Model Basin, NSWCCD, 9500 MacArthur Boulevard, West Bethesda, MD 20817-5700, USAHydromechanics Department, David Taylor Model Basin, NSWCCD, 9500 MacArthur Boulevard, West Bethesda, MD 20817-5700, USAThis is the continuation of our research on development of a fully nonlinear, dynamically consistent, numerical ship motion model (DiSSEL). In this study we will report our results in predicting ship motions in unsteady maneuvering in calm water. During the unsteady maneuvering, both the rudder angle, and ship forward speed vary with time. Therefore, not only surge, sway, and yaw motions occur, but roll, pitch and heave motions will also occur even in calm water as heel, trim, and sinkage, respectively. When the rudder angles and ship forward speed vary rapidly with time, the six degrees-of-freedom ship motions and their interactions become strong. To accurately predict the six degrees-of-freedom ship motions in unsteady maneuvering, a universal method for arbitrary ship hull requires physics-based fully-nonlinear models for ship motion and for rudder forces and moments. The numerical simulations will be benchmarked by experimental data of the Pre-Contract DDG51 design and an Experimental Hull Form. The benchmarking shows a good agreement between numerical simulations by the enhancement DiSSEL and experimental data. No empirical parameterization is used, except for the influence of the propeller slipstream on the rudder, which is included using a flow acceleration factor.http://dx.doi.org/10.1155/2012/468029 |
| spellingShingle | Ray-Qing Lin Tim Smith Michael Hughes Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model Modelling and Simulation in Engineering |
| title | Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model |
| title_full | Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model |
| title_fullStr | Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model |
| title_full_unstemmed | Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model |
| title_short | Prediction of Ship Unsteady Maneuvering in Calm Water by a Fully Nonlinear Ship Motion Model |
| title_sort | prediction of ship unsteady maneuvering in calm water by a fully nonlinear ship motion model |
| url | http://dx.doi.org/10.1155/2012/468029 |
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