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Prof. Anders Rosén
Associate professor, Department of Learning in Engineering Sciences, Global Development Hub, Centre for Naval Architecture, KTH Royal Institute of Technology, Stockholm, Sweden

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Research Keywords & Expertise

0 higher education for sustainable development
0 High-Speed Craft
0 Ship dynamics and safety
0 Ship structure design
0 Challenge-driven education

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High-Speed Craft
Ship dynamics and safety
Challenge-driven education

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Journal article
Published: 02 September 2020 in Ocean Engineering
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The paper presents an approach for time-domain simulation of structure responses, along with hydromechanic and structure inertia loads and motions responses, for high-speed planing craft in waves. Hydromechanic loads and motion responses are calculated with a non-linear time-domain strip method. A pressure shape function is introduced which enables formulation of detailed slamming pressure distributions sequences from the section forces in the strip method simulations. Structure responses are calculated quasi-dynamically by applying the momentary distributed pressure loads on a global finite element representation of the hull structure with use of inertia relief. From the time series output extreme responses are determined by means of short-term statistics. Promising results are demonstrated in applications on a high-speed planing craft, where extreme values of simulated structure responses are compared with responses to uniform design pressures from classification rules and measured responses from full-scale trials. The approach is concluded to be a useful tool for further research which has potential to form the basis for establishment of a computationally efficient simulation-based design methodology. A corresponding experimental modelling approach is presented in a parallel paper.

ACS Style

Anders Rosén; Karl Garme; Mikael Razola; Ermina Begovic. Numerical modelling of structure responses for high-speed planing craft in waves. Ocean Engineering 2020, 217, 107897 .

AMA Style

Anders Rosén, Karl Garme, Mikael Razola, Ermina Begovic. Numerical modelling of structure responses for high-speed planing craft in waves. Ocean Engineering. 2020; 217 ():107897.

Chicago/Turabian Style

Anders Rosén; Karl Garme; Mikael Razola; Ermina Begovic. 2020. "Numerical modelling of structure responses for high-speed planing craft in waves." Ocean Engineering 217, no. : 107897.

Journal article
Published: 17 December 2019 in Sustainability
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The urgent need for actions in the light of the global challenges motivates international policy to define roadmaps for education on all levels to step forward and contribute with new knowledge and competencies. Challenge-Driven Education (CDE) is described as an education for Sustainable Development (ESD) approach, which aims to prepare students to work with global challenges and to bring value to society by direct impact. This paper describes, evaluates and discusses a three-year participatory implementation project of Challenge-driven education (CDE) within the engineering education at the University of Dar es Salam, UDSM, which has been carried out in collaboration with the Royal Institute of Technology, KTH in Stockholm. Conclusions are drawn on crucial aspects for engineering education change through the lens of Activity Theory (AT), where CDE is brought forward as a motivating ESD initiative for engineering faculty and students. Furthermore participatory co-creation is notably useful as it aims to embrace social values among the participants. Also, traditional organizational structures will need to be continuously negotiated in the light of the integration of more open-ended approaches in education.

ACS Style

Anna-Karin Högfeldt; Anders Rosén; Christine Mwase; Ann Lantz; Lena Gumaelius; Eva Shayo; Suzan Lujara; Nerey Mvungi. Mutual Capacity Building through North-South Collaboration Using Challenge-Driven Education. Sustainability 2019, 11, 7236 .

AMA Style

Anna-Karin Högfeldt, Anders Rosén, Christine Mwase, Ann Lantz, Lena Gumaelius, Eva Shayo, Suzan Lujara, Nerey Mvungi. Mutual Capacity Building through North-South Collaboration Using Challenge-Driven Education. Sustainability. 2019; 11 (24):7236.

Chicago/Turabian Style

Anna-Karin Högfeldt; Anders Rosén; Christine Mwase; Ann Lantz; Lena Gumaelius; Eva Shayo; Suzan Lujara; Nerey Mvungi. 2019. "Mutual Capacity Building through North-South Collaboration Using Challenge-Driven Education." Sustainability 11, no. 24: 7236.

Conference paper
Published: 15 November 2019 in Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
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This study explores the prospects of using scaled model experiments for capturing the influence of a novel spray deflection concept on planing craft performance in calm water and in waves. An experimental setup with a towed planing craft model is designed and systematic experiments are performed, first with a bare hull model and then with the same model equipped with spray deflectors. Measured trim, sinkage and resistance in calm water and accelerations and resistance in waves are presented. The results, as well as various aspects of the experimental setup and the spray phenomenon, are discussed. The experimental results indicate that the studied spray deflector concept can have positive effects by lowering the resistance as well as the acceleration in waves. The detailed tailoring of the deflectors is concluded to be crucial. The developed experimental setup is concluded to give consistent results that capture the influence of the spray deflection details on the craft resistance and responses and is concluded to be useful for further research as well as for design purposes.

ACS Style

Chiara Wielgosz; Anders Rosén; Raju Datla; Uihoon Chung; Jonas Danielsson. Experimental modelling of spray deflection influence on planing craft performance in calm water and waves. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 2019, 234, 399 -408.

AMA Style

Chiara Wielgosz, Anders Rosén, Raju Datla, Uihoon Chung, Jonas Danielsson. Experimental modelling of spray deflection influence on planing craft performance in calm water and waves. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2019; 234 (2):399-408.

Chicago/Turabian Style

Chiara Wielgosz; Anders Rosén; Raju Datla; Uihoon Chung; Jonas Danielsson. 2019. "Experimental modelling of spray deflection influence on planing craft performance in calm water and waves." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 234, no. 2: 399-408.

Journal article
Published: 01 August 2019 in Ocean Engineering
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ACS Style

Teemu Manderbacka; Nikolaos Themelis; Igor Bačkalov; Evangelos Boulougouris; Eleftheria Eliopoulou; Hirotada Hashimoto; Dimitrios Konovessis; Jean-François Leguen; Marcos Míguez González; Claudio A. Rodríguez; Anders Rosén; Pekka Ruponen; Vladimir Shigunov; Martin Schreuder; Daisuke Terada. An overview of the current research on stability of ships and ocean vehicles: The STAB2018 perspective. Ocean Engineering 2019, 186, 106090 .

AMA Style

Teemu Manderbacka, Nikolaos Themelis, Igor Bačkalov, Evangelos Boulougouris, Eleftheria Eliopoulou, Hirotada Hashimoto, Dimitrios Konovessis, Jean-François Leguen, Marcos Míguez González, Claudio A. Rodríguez, Anders Rosén, Pekka Ruponen, Vladimir Shigunov, Martin Schreuder, Daisuke Terada. An overview of the current research on stability of ships and ocean vehicles: The STAB2018 perspective. Ocean Engineering. 2019; 186 ():106090.

Chicago/Turabian Style

Teemu Manderbacka; Nikolaos Themelis; Igor Bačkalov; Evangelos Boulougouris; Eleftheria Eliopoulou; Hirotada Hashimoto; Dimitrios Konovessis; Jean-François Leguen; Marcos Míguez González; Claudio A. Rodríguez; Anders Rosén; Pekka Ruponen; Vladimir Shigunov; Martin Schreuder; Daisuke Terada. 2019. "An overview of the current research on stability of ships and ocean vehicles: The STAB2018 perspective." Ocean Engineering 186, no. : 106090.

Chapter
Published: 02 January 2019 in Contemporary Ideas on Ship Stability
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This paper presents unique experimental set-ups in model scale and full scale for evaluating roll damping properties of a Panamax Pure Car and Truck Carrier at speed. The purpose of this study is to develop a method for the assessment of roll damping based on full scale trials and to validate the use of roll damping derived from model tests for full scale vessels. Experimental data are also used to assess a semi-empirical method that today provides input for the prediction of critical rolling events such as parametric rolling and severe rolling motions in general.

ACS Style

Carl-Johan Söder; Anders Rosén; Sofia Werner; Mikael Huss; Jakob Kuttenkeuler. Assessment of Ship Roll Damping Through Full Scale and Model Scale Experiments and Semi-empirical Methods. Contemporary Ideas on Ship Stability 2019, 177 -190.

AMA Style

Carl-Johan Söder, Anders Rosén, Sofia Werner, Mikael Huss, Jakob Kuttenkeuler. Assessment of Ship Roll Damping Through Full Scale and Model Scale Experiments and Semi-empirical Methods. Contemporary Ideas on Ship Stability. 2019; ():177-190.

Chicago/Turabian Style

Carl-Johan Söder; Anders Rosén; Sofia Werner; Mikael Huss; Jakob Kuttenkeuler. 2019. "Assessment of Ship Roll Damping Through Full Scale and Model Scale Experiments and Semi-empirical Methods." Contemporary Ideas on Ship Stability , no. : 177-190.

Review article
Published: 29 November 2017 in Journal of Marine Science and Technology
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In this paper Ikeda’s method for roll damping prediction is revisited and the applicability of the method to modern volume carriers is considered. For volume carriers the hull lift and bilge keel components are the dominating components and the estimation of these components in the original method are benchmarked and scrutinized. It is concluded that the speed dependence of the bilge keels damping is underestimated by the original method. This is partially explained by that Ikeda seems to have underestimated the lift force of the bilge keels in his analytical expressions. Correcting for this and taking account of the lift force-generated pressure on the hull surface gives overall better agreement with model tests. It is also concluded that the hull lift damping component is significantly overestimated with the original method. Non-viscid CFD is used to propose a new generic expression for estimating the lift coefficients for volume carriers which greatly improve the accuracy in comparison to model test results. With these improvements Ikeda’s method is revitalized and the applicability is extended to unconventional volume carriers.

ACS Style

Carl-Johan Söder; Anders Rosén; Mikael Huss. Ikeda revisited. Journal of Marine Science and Technology 2017, 24, 306 -316.

AMA Style

Carl-Johan Söder, Anders Rosén, Mikael Huss. Ikeda revisited. Journal of Marine Science and Technology. 2017; 24 (1):306-316.

Chicago/Turabian Style

Carl-Johan Söder; Anders Rosén; Mikael Huss. 2017. "Ikeda revisited." Journal of Marine Science and Technology 24, no. 1: 306-316.

Research article
Published: 28 December 2016 in Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
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This paper considers the modelling of spray formation on planing hulls. The focus is on assessing the applicability of the prevailing theories and two-dimensional and three-dimensional Computational Fluid Dynamics (CFD) simulations in the investigation of different design factors for a novel spray deflection concept. The spray deflection concept is presented and its performance is evaluated by comparison with traditional spray rails. It is found that the prevailing theory where the spray field of a planing hull is represented by a two-dimensional flat planing plate will overestimate the spray thickness, whereas the theories that are based on wedge impact are correlating well with the results from the CFD simulations. Compared to a bare hull, adding spray deflectors reduces the viscous resistance by 28% for the studied cases. The spray deflectors further redirect the spray aftwards which reduce the total drag an additional 4%. The paper also discusses various aspects on CFD modelling of spray formation.

ACS Style

Linus Olin; Mireia Altimira; Jonas Danielsson; Anders Rosén. Numerical modelling of spray sheet deflection on planing hulls. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 2016, 231, 811 -817.

AMA Style

Linus Olin, Mireia Altimira, Jonas Danielsson, Anders Rosén. Numerical modelling of spray sheet deflection on planing hulls. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2016; 231 (4):811-817.

Chicago/Turabian Style

Linus Olin; Mireia Altimira; Jonas Danielsson; Anders Rosén. 2016. "Numerical modelling of spray sheet deflection on planing hulls." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 231, no. 4: 811-817.

Journal article
Published: 01 July 2016 in Ocean Engineering
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Attaining a sufficient level of safety from the point of view of stability is typically considered to be a matter of design. However, it is impossible to ensure safety only by design measures, and operational measures can then represent a complementary tool for efficiently and cost-effectively increasing the overall safety of the vessel. Time could therefore be coming for systematically considering operational measures as a recognised and regulated integral part of a holistic approach to ship safety from the point of view of stability. This paper therefore aims at capturing recent trends of research targeting operational safety measures, with specific attention to the intact ship condition. Open challenges and opportunities for research are identified, potential benefits and shortcomings of different options are discussed, and needs and possibilities for further developments in this area are explored. As an overall goal, this paper aims at providing food for thoughts as well as a ground for further proceeding towards the target of implementing a virtuous integrated approach to intact ship safety, from the point of view of stability, which gives due credit to effective and robust operational risk control options.

ACS Style

Igor Bačkalov; Gabriele Bulian; Anders Rosén; Vladimir Shigunov; Nikolaos Themelis. Improvement of ship stability and safety in intact condition through operational measures: challenges and opportunities. Ocean Engineering 2016, 120, 353 -361.

AMA Style

Igor Bačkalov, Gabriele Bulian, Anders Rosén, Vladimir Shigunov, Nikolaos Themelis. Improvement of ship stability and safety in intact condition through operational measures: challenges and opportunities. Ocean Engineering. 2016; 120 ():353-361.

Chicago/Turabian Style

Igor Bačkalov; Gabriele Bulian; Anders Rosén; Vladimir Shigunov; Nikolaos Themelis. 2016. "Improvement of ship stability and safety in intact condition through operational measures: challenges and opportunities." Ocean Engineering 120, no. : 353-361.

Review
Published: 01 April 2016 in Ocean Engineering
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In Naval Architecture, the concept of “stability” has a very wide meaning, embracing ship stability fundamentals with ship dynamics and ultimately ship safety. As such, the subject is of paramount importance for its wide implications on design and operation of ships and floating units. Research in this field has, therefore, an important impact on the fleet safety, and the International Conferences on Stability of Ships and Ocean Vehicles (STAB Conferences) and the International Ship Stability Workshops (ISSW) are certainly the venues where expertise and contemporary developments in this specific field tend to be collected and thoroughly debated. With the aim of analysing the current status and possible future perspectives of research in the field of ship stability, dynamics and safety, this paper provides an extensive review of the findings presented at STAB Conferences and ISSW events in the period 2009–2014. The reviewed material is organised according to a set of identified macro-topics of research. On the basis of the reviewed material, consolidated research topics as well as emerging subjects are laid out, and ideas for possible future research are also brought forward. Discussion is also provided regarding the link between research and educational aspects.

ACS Style

Igor Bačkalov; Gabriele Bulian; Jakub Cichowicz; Eleftheria Eliopoulou; Dimitris Konovessis; Jean-François Leguen; Anders Rosén; Nikolaos Themelis. Ship stability, dynamics and safety: Status and perspectives from a review of recent STAB conferences and ISSW events. Ocean Engineering 2016, 116, 312 -349.

AMA Style

Igor Bačkalov, Gabriele Bulian, Jakub Cichowicz, Eleftheria Eliopoulou, Dimitris Konovessis, Jean-François Leguen, Anders Rosén, Nikolaos Themelis. Ship stability, dynamics and safety: Status and perspectives from a review of recent STAB conferences and ISSW events. Ocean Engineering. 2016; 116 ():312-349.

Chicago/Turabian Style

Igor Bačkalov; Gabriele Bulian; Jakub Cichowicz; Eleftheria Eliopoulou; Dimitris Konovessis; Jean-François Leguen; Anders Rosén; Nikolaos Themelis. 2016. "Ship stability, dynamics and safety: Status and perspectives from a review of recent STAB conferences and ISSW events." Ocean Engineering 116, no. : 312-349.

Journal article
Published: 01 March 2016 in Ocean Engineering
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Design and operation of high-speed planing craft is ruled by the hydrodynamic impact loads and the related craft responses occurring at violent wave encounters. Simulation, measurement and characterization of these loads and responses is however far from trivial. Hereby the general knowledge about these processes is actually rather limited and it is common to rely on simple semi-empirical formulas when designing and analyzing high-speed craft. This paper presents a unique set of impact acceleration data for a high-speed craft in waves, generated based on non-linear strip simulations. Methods and measures for statistical characterization of the acceleration process are established and evaluated, and by application of these methods on the simulation data a number of issues are clarified, for example: slamming time scales and selection of appropriate sampling rates and filtering levels; identification of peak values in acceleration signals; statistical distributions and convergence; and the relation between the statistical peak fraction averages that are commonly used as design parameters and the actual extreme values. The established methods and generated results form a valuable basis for setting up and analyzing high-speed craft experiments and simulations, and for validating and updating the prevailing semi-empirical methods.

ACS Style

Mikael Razola; Katrin Olausson; Karl Garme; Anders Rosén. On high-speed craft acceleration statistics. Ocean Engineering 2016, 114, 115 -133.

AMA Style

Mikael Razola, Katrin Olausson, Karl Garme, Anders Rosén. On high-speed craft acceleration statistics. Ocean Engineering. 2016; 114 ():115-133.

Chicago/Turabian Style

Mikael Razola; Katrin Olausson; Karl Garme; Anders Rosén. 2016. "On high-speed craft acceleration statistics." Ocean Engineering 114, no. : 115-133.

Research article
Published: 28 April 2015 in Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
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A comparative Life Cycle Assessment is performed for different structural material concepts on a 24-m-long high-speed patrol craft. The study is comparative and determines the differences in and sensitivities to environmental impact, especially in relation to the total impact of fuel burn for the different material concepts. The material concepts are aluminium and various composite combinations consisting of glass fibre and carbon fibre with vinyl ester resin both as single skins and as sandwich with a Divinycell foam core. Commercially available standard Life Cycle Assessment software is used for the Life Cycle Assessment calculations. The study shows that regardless of hull material concept, the environmental impact is dominated by the operational phase due to relatively large fuel consumption. In the operational phase, the lightest carbon-fibre concept is shown to have least environmental impact. Considering the manufacturing phase exclusively for the different hull concepts, it is concluded that the manufacturing of the aluminium hull has a somewhat larger environment impact for the majority of Life Cycle Assessment impact categories in comparison to the different composite hulls. The significant impact on the marine and the fresh water aquatic ecotoxicity originates from the aluminium raw material excavation and manufacturing processes. It is shown that the lightest hull, the carbon-fibre sandwich concept, with a 50% structural weight reduction compared to the aluminium design, can be utilized to reduce the fuel consumption by 20% (775 ton of diesel) over the lifetime with significant impact on the dominating environmental aspects considered herein, abiotic depletion, global warming and acidification.

ACS Style

Magnus Burman; Jakob Kuttenkeuler; Ivan Stenius; Karl Garme; Anders Rosén. Comparative Life Cycle Assessment of the hull of a high-speed craft. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 2015, 230, 378 -387.

AMA Style

Magnus Burman, Jakob Kuttenkeuler, Ivan Stenius, Karl Garme, Anders Rosén. Comparative Life Cycle Assessment of the hull of a high-speed craft. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2015; 230 (2):378-387.

Chicago/Turabian Style

Magnus Burman; Jakob Kuttenkeuler; Ivan Stenius; Karl Garme; Anders Rosén. 2015. "Comparative Life Cycle Assessment of the hull of a high-speed craft." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 230, no. 2: 378-387.

Journal article
Published: 25 November 2014 in Journal of Marine Science and Technology
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This paper presents and discusses the results of a comparison between using deterministic and ensemble weather forecasts for weather routing. The study is based on comparisons between predicted and realised performance of routes suggested by a route optimization method and focuses on two important performance factors, namely, fuel consumption and late arrival. The study is purely qualitative since the simulations do not include re-routing of the vessel as new forecasts become available. To perform the study a multi-objective dynamic programming method is tailored to the problem and implemented to perform the route optimization and a ship performance model is used to calculate the additional fuel consumption due to wind and waves acting on the ship. The results show that route optimization using ensemble weather forecasts has the potential to reduce the risk of late arrival for voyages during periods of harsh weather.

ACS Style

Lukas Skoglund; Jakob Kuttenkeuler; Anders Rosén; Erik Ovegård. A comparative study of deterministic and ensemble weather forecasts for weather routing. Journal of Marine Science and Technology 2014, 20, 429 -441.

AMA Style

Lukas Skoglund, Jakob Kuttenkeuler, Anders Rosén, Erik Ovegård. A comparative study of deterministic and ensemble weather forecasts for weather routing. Journal of Marine Science and Technology. 2014; 20 (3):429-441.

Chicago/Turabian Style

Lukas Skoglund; Jakob Kuttenkeuler; Anders Rosén; Erik Ovegård. 2014. "A comparative study of deterministic and ensemble weather forecasts for weather routing." Journal of Marine Science and Technology 20, no. 3: 429-441.

Journal article
Published: 01 October 2014 in Ocean Engineering
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ACS Style

Mikael Razola; Anders Rosén; Karl Garme. Allen and Jones revisited. Ocean Engineering 2014, 89, 119 -133.

AMA Style

Mikael Razola, Anders Rosén, Karl Garme. Allen and Jones revisited. Ocean Engineering. 2014; 89 ():119-133.

Chicago/Turabian Style

Mikael Razola; Anders Rosén; Karl Garme. 2014. "Allen and Jones revisited." Ocean Engineering 89, no. : 119-133.

Journal article
Published: 01 December 2013 in Ocean Engineering
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ACS Style

I. Stenius; A. Rosén; Mark Battley; Tom Allen. Experimental hydroelastic characterization of slamming loaded marine panels. Ocean Engineering 2013, 74, 1 -15.

AMA Style

I. Stenius, A. Rosén, Mark Battley, Tom Allen. Experimental hydroelastic characterization of slamming loaded marine panels. Ocean Engineering. 2013; 74 ():1-15.

Chicago/Turabian Style

I. Stenius; A. Rosén; Mark Battley; Tom Allen. 2013. "Experimental hydroelastic characterization of slamming loaded marine panels." Ocean Engineering 74, no. : 1-15.

Journal article
Published: 06 April 2013 in Journal of Marine Science and Technology
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Severe roll angles can be developed by parametric excitation in relatively moderate weather without any apparent pre-warning for the crew onboard. In this study the prospect of using rudder control to mitigate parametric roll was investigated using multi-degree of freedom simulations. A typical modern Pure Car and Truck Carrier was considered and modelled by coupling a roll model with a planar motion manoeuvring model. The combined model was calibrated using in-service, full-scale trials and model tests. Irregular variations of the metacentric height were applied to simulate recorded, full-scale events of parametric roll that have occurred with the considered design. These simulations with rudder roll control showed promising results and demonstrate that the approach could be very efficient for mitigation of parametric roll.

ACS Style

Carl-Johan Söder; Anders Rosén; Erik Ovegård; Jakob Kuttenkeuler; Mikael Huss. Parametric roll mitigation using rudder control. Journal of Marine Science and Technology 2013, 18, 395 -403.

AMA Style

Carl-Johan Söder, Anders Rosén, Erik Ovegård, Jakob Kuttenkeuler, Mikael Huss. Parametric roll mitigation using rudder control. Journal of Marine Science and Technology. 2013; 18 (3):395-403.

Chicago/Turabian Style

Carl-Johan Söder; Anders Rosén; Erik Ovegård; Jakob Kuttenkeuler; Mikael Huss. 2013. "Parametric roll mitigation using rudder control." Journal of Marine Science and Technology 18, no. 3: 395-403.

Papers
Published: 01 December 2012 in Ships and Offshore Structures
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This paper presents a method for monitoring of racking-induced stresses in ro-ro ships. The approach is built on the assumption that the racking stresses are mainly induced by the roll and sway motions and therewith related inertia and gravity forces. The approach involves real-time measurement of the ship motions and scaling of the measured motions with pre-calculated structural responses from finite element analysis. The method is applied to full-scale measurement data from the Wallenius Lines PCTC Mignon. Derived stresses show good agreement with stresses derived from strain gauge measurements, indicating that the method has potential as an alternative to conventional strain-gauge-based monitoring. Motion-based stress monitoring has several potential areas of application such as providing data for decision support, for live assistance and short-term route planning, structural condition reports and for supplying feedback to the design process.

ACS Style

Carl-Johan Söder; Anders Rosén; Mikael Palmquist. Motion-based monitoring of racking stresses in ro-ro ships. Ships and Offshore Structures 2012, 7, 389 -398.

AMA Style

Carl-Johan Söder, Anders Rosén, Mikael Palmquist. Motion-based monitoring of racking stresses in ro-ro ships. Ships and Offshore Structures. 2012; 7 (4):389-398.

Chicago/Turabian Style

Carl-Johan Söder; Anders Rosén; Mikael Palmquist. 2012. "Motion-based monitoring of racking stresses in ro-ro ships." Ships and Offshore Structures 7, no. 4: 389-398.

Research article
Published: 01 November 2012 in Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment
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Previous studies have shown how the use of composite materials and application of sophisticated design methods can give significantly lighter high-speed craft structures than what is normally achieved for traditional aluminium designs. A reduction in structural mass and a corresponding reduction in displacement improve the craft calm water performance but can be unfavourable regarding the rough water performance. Here, the rough water performance of two versions of a fast patrol vessel, one in aluminium and the other in carbon fibre sandwich, is studied with simplified semi-empirical methods and more advanced non-linear time domain simulations. In speeds up to 30 knots, the rough water performance of the two craft versions is found to be practically equal. At higher speeds, the lighter composite craft experiences higher vertical accelerations than the heavier aluminium craft, which implies less operational availability. Using trim ballast tanks, the rough water performance of the lighter craft is improved, and it is shown that the acceleration levels can be reduced and even lowered relative to the heavier aluminium craft. This means that the calm water advantages of a lighter composite vessel can be utilized with the same ride comfort and operational availability as for a heavier aluminium vessel.

ACS Style

Karl Garme; Anders Rosén; Ivan Stenius; Jakob Kuttenkeuler. Rough water performance of lightweight high-speed craft. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 2012, 228, 293 -301.

AMA Style

Karl Garme, Anders Rosén, Ivan Stenius, Jakob Kuttenkeuler. Rough water performance of lightweight high-speed craft. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment. 2012; 228 (3):293-301.

Chicago/Turabian Style

Karl Garme; Anders Rosén; Ivan Stenius; Jakob Kuttenkeuler. 2012. "Rough water performance of lightweight high-speed craft." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 228, no. 3: 293-301.

Chapter
Published: 16 November 2011 in Parametric Resonance in Dynamical Systems
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This chapter reviews three recent full-scale events with parametric rolling for Ro–Ro Large Car and Truck Carriers (LCTC). The events represent three principally different modes of parametric rolling: principal parametric resonance where the period of encounter is half of the roll natural period in following seas (I) and in head seas (II), and fundamental parametric resonance where the period of encounter coincides with the roll natural period in following seas (III). Roll motion, course, and speed recorded during the events are presented and analyzed together with the present weather situation based on recordings, forecasts, and re-analysis. Different aspects of on-board operational guidance for assisting crews in avoiding parametric rolling are discussed in relation to the presented events. Involved complexities and considerations that are normally not included in well defined model tests or numerical simulations are exposed.

ACS Style

Anders Rosén; Mikael Huss; Mikael Palmquist. Experience from Parametric Rolling of Ships. Parametric Resonance in Dynamical Systems 2011, 147 -165.

AMA Style

Anders Rosén, Mikael Huss, Mikael Palmquist. Experience from Parametric Rolling of Ships. Parametric Resonance in Dynamical Systems. 2011; ():147-165.

Chicago/Turabian Style

Anders Rosén; Mikael Huss; Mikael Palmquist. 2011. "Experience from Parametric Rolling of Ships." Parametric Resonance in Dynamical Systems , no. : 147-165.

Journal article
Published: 01 February 2011 in Ocean Engineering
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ACS Style

I. Stenius; Anders Rosén; J. Kuttenkeuler. Hydroelastic interaction in panel-water impacts of high-speed craft. Ocean Engineering 2011, 38, 371 -381.

AMA Style

I. Stenius, Anders Rosén, J. Kuttenkeuler. Hydroelastic interaction in panel-water impacts of high-speed craft. Ocean Engineering. 2011; 38 (2-3):371-381.

Chicago/Turabian Style

I. Stenius; Anders Rosén; J. Kuttenkeuler. 2011. "Hydroelastic interaction in panel-water impacts of high-speed craft." Ocean Engineering 38, no. 2-3: 371-381.

Journal article
Published: 01 January 2011 in Marine Structures
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ACS Style

I. Stenius; Anders Rosén; J. Kuttenkeuler. On structural design of energy efficient small high-speed craft. Marine Structures 2011, 24, 43 -59.

AMA Style

I. Stenius, Anders Rosén, J. Kuttenkeuler. On structural design of energy efficient small high-speed craft. Marine Structures. 2011; 24 (1):43-59.

Chicago/Turabian Style

I. Stenius; Anders Rosén; J. Kuttenkeuler. 2011. "On structural design of energy efficient small high-speed craft." Marine Structures 24, no. 1: 43-59.