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Abstract
The article presents an efficient method of optimal thrust allocation over the actuators in a dynamically positioned ship, according to the DNV-ST-0111 standard, Level 1. The optimisation task is approximated to a convex problem with linear constraints and mathematically formulated as quadratic programming. The case study is being used to illustrate the use of the proposed approach in assessing the DP capability of a rescue ship. The quadratic programming- based approach applied for dynamic positioning capability assessment allows for fast calculations to qualitatively compare different ship designs. In comparison with the DNV tool, it gives 100% successful validation for a ship with azimuth thrusters and a pessimistic solution for a ship equipped with propellers with rudders. Therefore, it can be safely applied at an early design stage.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/pomr-2023-0019
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Polish Maritime Research
no. 30,
pages 28 - 38,
ISSN: 1233-2585 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Piekło A., Witkowska A., Zubowicz T.: DYNAMIC POSITIONING CAPABILITY ASSESSMENT BASED ON OPTIMAL THRUST ALLOCATION// Polish Maritime Research -Vol. 30,iss. 2(118) (2023), s.28-38
- DOI:
- Digital Object Identifier (open in new tab) 10.2478/pomr-2023-0019
- Sources of funding:
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- WEiA -PG (50%), firma CTO (50%)
- Verified by:
- Gdańsk University of Technology
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