Fields of competence
ROBOTNOR represents a unique synergy of academic and industrial expertise which allows us to counsel and comprehend a wide variety of tasks and projects. Our fields of competence are numerous and diverse.
It is an expressed need of the industry to strengthen the competences of the Norwegian maritime industry in arctic marine operations with special focus on dynamic positioning (DP). The objective of this KMB is to enable future systems for DP in arctic environments to be automatic control systems. The control system must construct an accurate picture of the vessel’s and the environment’s situation, combining measurements with models in observers, and it must act on this information safely using automatic feedback control. However, in designing such control systems, it is vital to have a good understanding of the vessel and its hydrodynamics and the disturbances that influence the dynamic behavior of the vessel (ice; in addition to waves, wind, current).
There are two main research objectives of the research; (1) to understand and build competence on the effects of ice loads on DP vessels through modeling and simulation, and (2) to carry out mathematical control designs that targets import ant aspects for safe commercial systems. This means that focus is put on the DP vessel itself: ice-hull interaction forces and how to control the vessel for DP in ice, and on the ice management system: how to collect, analyze, and present ice data for the operation area and how to perform physical ice management most efficient.
The project is a collaboration between the Department of Marine Technology, the Department of Engineering Cybernetics and the Department of Civil and Transport Engineering at NTNU, the Norwegian Research Council, Kongsberg Maritime, Statoil and DNV, and includes 5 PhD positions and 1 PostDoc position.
For more info, see the project website.
Liquid water covers 71% of the Earth’s surface, and waterways have been the lifeline of […]
NTNU has recently established the Applied Underwater Robotics Laboratory (AUR lab). The lab is being used for applied research on subsea robotics.
To understand, simulate and design controllers for complex mechanical systems, it is necessary to have […]
It is not always possible to control inherently nonlinear systems by linear control methods throughout […]
Activities in the northern regions operate in an extreme and challenging environment that includes coastal, […]
J. Haugen, E. I. Grøtli and L. Imsland, State Estimation of Ice-Thickness Using Mobile Sensors, Proc. of the IEEE Multi-Conference on Systems and Control, pp. 336-343, 2012.
J. Haugen, L. Imsland, S. Løset and R. Skjetne, Ice Observer System for Ice Management Operations, Proc. of International Offshore and Polar Engineering Conference, pp. 1120-1127, 2011.
U. Jørgensen and R. Skjetne, Dynamic estimation of drifting ice topgraphy using underwater mobile measurements, Proc. of the American Control Conference, pp. 301-306, 2012.