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KTH Centre for Naval Architecture

Welcome to the KTH Centre for Naval Architecture.

Name Position
Jakob Kuttenkeuler Full professor
Karl Garme Associate professor
Peter Sigray Reseacher
Ivan Stenius Associate professor
Abbas Dashtimanesh Assistant professor
Hans Liwång Associate professor
Roger Berg Adjunct professor (Saab Kockums)
Mikael Palmquist Reseacher
Laura Marimon Giovannetti Affiliated faculty (SSPA)
Ulysse Dhomé Ph.D. student
Aldo Teran Espinoza Ph.D. student
Elias Strandell Ph.D. student
Viktor Lidström Ph.D. student
Clemens Deutsch Ph.D. student
Chiara Wielgosz Ph.D. student
Josefine Severholt Reserach engineer
Carl Ljung Reserach engineer
Niklas Rolleberg Reserach engineer
Marion Aku Atsine Zu Ph.D. student
Sriharsha Bhat Ph.D. student
David Dörner Ph.D. student

Education

If you are looking for courses or a masterprogram in Naval Architecture, look here  .

Ongoing and Terminated Projects and Studies

The following contains very short presentations of the ongoing, and some older but cool, projects within the research group. For more information, please contact the faculty, staff and doctoral students involved.

Efficient Trimming and Maneouvering of Sailing Commercial Ships

In this study the aim is to develop the knowledge, methods and technologies needed to sail a large multi-sail commercial vessel such as the Orcelle. As usual, we use a good mix of simulations and experimental tools to develop and validate our ideas. In the picture you see the 7 meter long self-sailing experimental platform used for field-testing. 

Contact: Jakob Kuttenkeuler  and Ulysse Dhomé  

7m

Hydrobatics and SAM

The term hydrobatics stems from aerobatics and refers to the agile manoeuvring of underwater robots. Small, slender and agile autonomous underwater vehicles (AUVs) can impact use cases such as mapping a glacier front, inspecting seaweed farms, docking with submarines, tracking a pollutant cloud or assembling structures. The SAM AUV (short for Small and Affordable Maritime Robot) developed at KTH is a research platform to explore hydrobatic capabilities in these use cases. SAM has a unique actuator configuration with counterrotating propellers, thrust vectoring, movable trim subsystems and a variable buoyancy system - these enable it to be agile while still being slender and underactuated. SAM’s payload includes cameras, environmental sensors and sidescan sonars, enabling SAM to look at targets, sense the water column and observe features on the seafloor. Research is currently being performed on modelling, control, planning and perception using SAM for several use case scenarios. A video of SAM in action can be found here .

Contact: Ivan Stenius  and Sriharsha Bhat

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Fast and Efficient Autonomous Watercraft

Electrification is ongoing everywhere thus also in marine craft. The reseach group have several initiatives ongoing in this field aswell. In the pictures below you see some instances of activities on technologies for hydrofoiling electric craft. We use the small and light e-foils as experimental platforms to explore flight mechanics, sensing technologies and control strategies. Especially interesting is that in 2008, this type of craft was invented  at the reseach group at KTH in the Evolo project  which was a continuation of the Kaimaran project . Since then, we have continued the work in collaboration with others towards incresed efficiency, controllability and autonomy. Also, we naturally still engage students in adressing the challenges.

Contact: Jakob Kuttenkeuler  

Bild

Bottom Landing Probes for Climate Reseach, LoTUS

The LoTUS system is a novel small, lightweight, expendable, bottom landing, moored, multiyear climate buoy tailored for collection of time series of bottom temperature in remote regions (global coverage). The LoTUS buoys are stand-alone, pop-up data collection systems for deployment from ship, helicopter or even aircraft. LoTUS is designed to sample water temperature accurately during long time moored at the seabed. Temperature is measured at pre-set intervals during a pre-set sampling period. After the sampling period LoTUS releases its anchor, floats to the surface and transmits data to shore via satellite link. The temperature sampling is done for up to 10 years with an accuracy close to 1/1000°. More than 50 LoTUS buoys has been deployed.
Contact: Jakob Kuttenkeuler

LoTUS bottom landers

 Autonomous Underwater Vehicle - LoLo

The general aim for the Maribot LoLo is to be a demonstrator tool and experimental platform for a wide range of research activities. The AUV itself is thus to be regarded as the tool with which capabilities in all four SMaRC technology areas (Autonomy, Perception, Endurance and Communication) can be tested, improved and demonstrated.

Thus, the AUV is somewhat of an underwater "truck/lorry", a vehicle, an adaptable platform for research purposes. The role of LoLo is to serve other related reseach projects projects (e.g. on Machine learning, performance, Hydrobatics, Perception, Navigation, Planning,Multiagent, Energy storage, Sniffer, Communication and Network) with an experimental platform. Hereby the LoLo will become a hub and a collaborative platform that bring sub-projects, stakeholders and thus researchers together. 

Contact: Jakob Kuttenkeuler  and Niklas Rolleberg  

LoLo

Autonomous Sailboats

The project includes methodology development, design, completion and demonstration of a autonomous sailboat intended as test platform for further technological and methodological development with the long-term goal to push the technology front for autonomous data acquisition forward.

The project addresses a growing need of ocean sensing for the benefit of maritime safety, environmental monitoring, research in climate research, meteorology, oceanography, etc. Possible modes of operation of the sailing craft are place-bound (loitering) long-term measurement, routine patrolling, sniffing of possible emissions, hydrographic survey or the like.
The pictures show sailing drones during tesst in the Stockholm archipelago. One special feature is the rigid free-rotating rig which releases the vehicle from the need to sheet (control) of the rig relative angle to the boat hull. The rig adjusts its angle to the wind automatically increasing its robustness. Mechanical feedback of the relative angle between the rig and hull enables passive wind rudder feature, which further reduces the need for active control.

Contact: Jakob Kuttenkeuler  and Ulysse Dhomé

Testing

Performance Prediction and Optimal routing of Sailing Cargo Ships

At KTH, numerical tools are developed for the performance evaluation of sailing cargo ships. The toolchain consists of Velocity Prediction Program (VPP) where the fundamental static equations of motions are solved for the principal variables concerned with the sailing performance, e.g. surge- and sway speeds, heeling and rudder setting. Once the VPP have produced "speed polars" for all wind conditions the routing software is engaged to seek the optimal geographic route between start and destination concidering the actual weather. Usually, standard histoiric weather forecasts are used to simulate hundreds, or thusands, of journeys which are later analyzed for extraction of both aggregated, and detailed, measures of the ship performance.
Contact: Jakob Kuttenkeuler  

Some data

Aquatic Drones

Behind the working name “Maribot Petrel” is an initiative to explore the potential of an aquatic fixed wing UAV that could be used as a very versatile platform when equipped with sensors such as e.g. cameras in combination with hydrophones or even sonars. The idea is to utilize the concept of a pretty small fairly conventional electric fixed wing flying UAV with range of about 30km or more with the special feature of being able of repeated landings and take offs in water at virtually any sea state. The UAV could be used as a movable hydrophone buoy, a patrolling surveillance UAV with hydrophone capability, as a bottom-moored hydrophone that can be released from its mooring and fly home etc.
Contact: Jakob Kuttenkeuler  

Aquatic drone

Human Powered Submarine

A few years ago, some master students designed, built and operated humas submarine was finally demonstrated in the 50m pool in Örebro. The demonstration was a success with many impressive runs. Sustained speed of above 4 knots was obtained and noone got hurt ;-) Here are a few links: Clip , Article  
Contact: Jakob Kuttenkeuler  

Naval Architecture in the Arctic

Jari Krützfeldt, a masters student at the Centre for Naval Architecture is sailng aboard the Swedish icebreaker Oden in the icy waters at the mouth of the Greenland’s Petermann Glacier. His mission is to drop 10 deep-water LoTUS  probes to the bottom of the Arctic Ocean, barely 1,100 km from the North Pole. Read more here here .
Contact: Jakob Kuttenkeuler  

Human Powered Underwater Vehicles

Some years ago, two KTH Naval arcitecture teams MOB and Nautilus presented their designs for fast swimming Human Powered Underwater Vehicles. The expert panel put the student teams to the test and made the students stand up for their designs. Useful feedback was given and will likely lead to some design improvements. Next semester the two vehicles will be built and run :-)
Contact: Jakob Kuttenkeuler  

Human exposure to vibration and shock on high-speed craft

Katrin Olausson has presented and successfully defended her licentiate thesis entitled "On Evaluation and Modelling of Human Exposure to Vibration and Shock on Planing High-Speed Craft". Read more about Katrin's research and download the thesis introduction from here .

Solar Powered Boat

Some years ago, in the darkest time of the year, KTH students finalized the solar powered boat Hefring. The boat has been developed as part of the course Naval Design in collaboration with students in a similar course at the University of Tokyo. An earlier version of the boat was racing in lake Biwa in Japan in August. The photo shows the KTH team and the boat without solar panels.
Contact: Jakob Kuttenkeuler  

Friendly water drones

Naval architecture students from KTH and industrial design students from Konstfack have collaborated in exploring new innovative concepts for friendly water drones, i.e. autonomous or remotely operated water vessels for civil applications. Three different themes were explored - public transportation in Stockholm, cleaning the ocean from plastic waste, and sea rescue. Below is one example of the developed concepts.

Vattenvägen 365 - för en hållbar framtid

Med drivkraften att bidra till utvecklingen av hållbara transporter i städer runt om i världen arbetar KTH och Vattenbussen AB i forskningsinitiativet Vattenvägen 365 med stöd av Sjöfartsverket, ett långsiktigt arbete för kollektivtrafik- och citylogistiksystem i urbana miljöer med avsikten att identifiera förutsättningarna för ett hållbart vattenburet kollektivtrafiksystem för året-runt-trafik integrerat i befintliga kollektivtrafiksystem. [ Report (pdf 8,2 MB) ]

Innehållsansvarig:Jakob Kuttenkeuler
Tillhör: Aeronautical & Vehicle Engineering
Senast ändrad: 2022-10-11