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Przemysław Krata
Ship stabilityCollisionEngineeringSlosh dynamicsMarine engineering
37Publications
9H-index
199Citations
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Publications 40
Newest
#2Jakub MontewkaH-Index: 21
Last. S.E. HirdarisH-Index: 10
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1 CitationsSource
#2Jakub MontewkaH-Index: 21
Last. Tomasz HinzH-Index: 1
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#1Rafal Szlapczynski (GUT: Gdańsk University of Technology)H-Index: 12
#2Przemysław KrataH-Index: 9
Last. Joanna SzlapczynskaH-Index: 11
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A ship encounter can be considered safe if neither of ships’ domains (defined areas around ships) is intruded by other ships. Published research on this includes optimising collision avoidance manoeuvres fulfilling domain-based safety conditions. However, until recently there was no method, using ship’s domain to determine exact moment when a particular collision avoidance manoeuvre can still be successfully performed. The authors have already proposed such method for give-way encounters. In the...
3 CitationsSource
#1Rafal Szlapczynski (GUT: Gdańsk University of Technology)H-Index: 12
#2Przemysław KrataH-Index: 9
Last. Joanna SzlapczynskaH-Index: 11
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Abstract Ship domain is often used in marine navigation and marine traffic engineering as a safety condition. The basic idea behind those applications is that an encounter of two or more ships can be considered safe if neither of ship domains is intruded by other ships. Research utilising this approach has been documented in numerous works, including publications on optimising collision avoidance manoeuvres performed to fulfil domain-based safety conditions. However, up to this point there has b...
7 CitationsSource
#1Maria Acanfora (Aalto University)H-Index: 4
#2Przemysław KrataH-Index: 9
Last. Pentti Kujala (Aalto University)H-Index: 27
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Abstract The concept of autonomous merchant ships is quite recent. The increasing interest in autonomous vessels is nowadays calling for smart technologies that are supposed to replace the human actions on board. This involves troublesome issues related to ship safety. In the future, decision-making processes that are conventionally performed by human beings on board ship will be moved ashore to the control centre and maybe even completely replaced by computers and smart technologies. This paper...
1 CitationsSource
#1Tomasz HinzH-Index: 1
#2Maria AcanforaH-Index: 4
Last. Jerzy MatusiakH-Index: 9
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Abstract The paper presents a method of determining, organizing and displaying ship collision avoidance information, which is based on the Collision Threat Parameters Area (CTPA) technique. The method makes it possible to visualize navigational threats as well as possible collision avoidance manoeuvres. The solution is focused on supporting navigation in severe weather conditions. Normally collision avoidance decisions are made taking into account targets' motion parameters, International Regula...
5 CitationsSource
#1Marcin Życzkowski (GUT: Gdańsk University of Technology)H-Index: 2
#2Przemysław KrataH-Index: 9
Last. Rafal Szlapczynski (GUT: Gdańsk University of Technology)H-Index: 12
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The article presents a method to determine the route of a sailing vessel with the aid of deterministic algorithms. The method assumes that the area in which the route is to be determined is limited and the basic input data comprise the wind vector and the speed characteristic of the vessel. Compared to previous works of the authors, the present article additionally takes into account the effect of sea waves with the resultant resistance increase on the vessel speed. This approach brings the prop...
2 CitationsSource
Abstract Ship routing process taking into account weather conditions is a constrained multi-objective optimization problem and it should consider various optimization criteria and constraints. Formulation of a stability-related, dynamic route optimization constraint is presented in this paper. One of the key objectives of a cross ocean sailing is finding a compromise between ship safety and economics of operation. This compromise should be taken into account by the planning procedure and proper ...
12 CitationsSource
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