A5037019499- Structural Integrity and Reliability Analysis
- Ship Hydrodynamics and Maneuverability
- Fatigue and fracture mechanics
- Mechanical stress and fatigue analysis
- Maritime Transport Emissions and Efficiency
- Fluid Dynamics Simulations and Interactions
- Wave and Wind Energy Systems
- Railway Engineering and Dynamics
- Arctic and Antarctic ice dynamics
- Fluid Dynamics and Vibration Analysis
- Maritime Navigation and Safety
- Structural Load-Bearing Analysis
- Probabilistic and Robust Engineering Design
- Offshore Engineering and Technologies
- Spacecraft and Cryogenic Technologies
- Mechanical Behavior of Composites
- High-Velocity Impact and Material Behavior
- Structural Health Monitoring Techniques
- Engineering Structural Analysis Methods
- Corrosion Behavior and Inhibition
- Vibration and Dynamic Analysis
- Aerospace Engineering and Energy Systems
- Material Properties and Failure Mechanisms
- Structural Behavior of Reinforced Concrete
- Arctic and Russian Policy Studies
Chalmers University of Technology
2016-2025
RISE Research Institutes of Sweden
2023
Norwegian University of Science and Technology
2021
University College London
2021
This study presents a novel approach to analytically capture aero- and hydrodynamic interaction effects on wind-assisted ships. Low aspect ratio wing theory is applied modified be used for the prediction of lift drag forces hulls sailing at drift angles. Aerodynamic are captured by solving Navier-Stokes equation incompressible, potential flow. The developed methods implemented 4 degrees-of-freedom performance model called "ShipCLEAN", including newly method rpm control Flettner rotors ship...
A 4 degrees of freedom ship performance prediction model is used to compare wind-assisted propulsion technologies: the Flettner rotor, a wingsail and DynaRig concept. An Aframax Oil Tanker on route between Gabon Canada in case study three technologies using actual information for voyage. The fuel savings were calculated they varied 5.6% 8.9%; rotor showed largest savings. parametric technology was carried out research how its dimensions operation conditions two types voyages influence...
To achieve IMO's goal of a 50% reduction GHG emission by 2050 (compared to the 2008 levels), shipping must not only work towards an optimization each ship and its components but aim for complete marine transport system, including fleet planning, harbour logistics, route speed profiles, weather routing design. ShipCLEAN, newly developed model, introduces coupling economics model sophisticated energy systems – it provides leap holistic systems. This paper presents how is applied propose in...
There is an environmentally and economically motivated need to reduce the fuel consumption air emissions of ships. To achieve a reduction in energy consumption, flow entire system ship must be analysed both component, or subsystem, level as well holistic way capture interactions between components. Of currently available monitoring prediction methods models, no single model method can used assess efficiency arbitrary vessel early design phase during operation. This study presents new generic...
This investigation presents an approach towards a better understanding of achievable accuracy fuel consumption predictions ships and provides example how thorough uncertainty analysis prediction models can be performed. A generic ship energy systems model is used for the two reference ships: RoRo tanker. The study uncertainties categorised handled in four different phases ship's life – from early design to operation. Monte Carlo simulations are carried out environmental conditions calculate...
When ships approach each other, they should keep a minimum area around them clear of other vessels in order to remain safe. The geometrical shape this has been studied since the early 1970s and is defined as ship domain. progress computer capacity then introduction Automatic Identification System (AIS) provides potential further investigate size governing factors This investigation revisits proposes method using data based on 600,000 encounters at 36 locations. It concluded that domain an...
This paper presents a benchmark study on the ultimate limit state analysis of stiffened plate structure subjected to uniaxial compressive loads, initiated and coordinated by ISSC 2022 technical committee III.1-Ultimate Strength. The overall objective is establish predictions buckling collapse strength structures loads. Participants were asked perform for full-scale reference experiment steel utilizing any combination class rules, guidelines, numerical approaches simulation procedures as they...
To meet the International Maritime Organization's (IMO) goal of decarbonising shipping sector by 2050, zero-emission ship propulsion systems should be developed to replace conventional fossil fuel-based ones. In this study, we propose a hybrid hydrogen-wind-powered system retrofitted benchmark merchant with system. The and its are modelled using an in-house platform. We analyse power energy requirements for over realistic route one-year schedule, factoring in actual sea weather conditions....
Numerical analyses are presented for two generations of a floating heaving point absorber wave energy converter (WEC) installed with different farm array layouts. The configurations based on WECs developed by Waves4Power. numerical models in the DNV software package, Sesam. Parametric studies isolated WEC and layouts conducted under typical environmental conditions various incident directions to understand hydrodynamic power performance levelised cost (LCoE). Hexagonal proposed deploying...
In this study, we conduct a thorough technical review of various existing design formulas used to predict the compressive ultimate strength plate structures in ships and offshore structures. addition, insights suggestions for developing advanced, generalised formulations are provided in-depth reviews. Plate members typically use slenderness ratio (đť›˝) limit state (ULS), formulating relationship accordingly. These often experience complex initial imperfections, such as deflections residual...