Modeling and Control for Dynamic Positioned Marine Vessels in Drifting Managed Sea Ice
This paper presents a development framework for dynamic positioning control systems for marine vessels in managed ice. Due to the complexity of the vessel-ice and ice-ice interactions a configurable high fidelity numerical model simulating the vessel, the ice floes, the water, and the boundaries is...
| Published in: | Modeling, Identification and Control: A Norwegian Research Bulletin |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Norwegian Society of Automatic Control
2014
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| Subjects: | |
| Online Access: | https://doi.org/10.4173/mic.2014.4.3 https://doaj.org/article/22992865d9f5449ba0a8f6c85b1dfe21 |
| Summary: | This paper presents a development framework for dynamic positioning control systems for marine vessels in managed ice. Due to the complexity of the vessel-ice and ice-ice interactions a configurable high fidelity numerical model simulating the vessel, the ice floes, the water, and the boundaries is applied. The numerical model is validated using experimental data and coupled with a control application incorporating sensor models, control systems, actuator models, and other external dynamics to form a closed loop development platform. The ice drift reversal is simulated by moving the positioning reference frame in an elliptic trajectory, rather than moving each individual ice floe. A control plant model is argued, and a control system for managed ice is proposed based on conventional open water design methods. A case study shows that dynamic positioning in managed ice is feasible for some moderate ice conditions. |
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