Polartern: Full-scale operational modal analysis
In 2016 two students from the SVRG participated in the PS-100 voyage from Tromso in Norway, via Svalbard to the Arctic onboard the German RV-Polarstern. The ship was equipped with 2 km of cable to allow for a network of 20 accelerometers to be installed throughout her hull structure. Strain gauges were also added to her shaft to allow engineers to determine her propulsion thrust and the twisting torque in the shaft-line when ice impacts the propellers. Stellenbosch University determined the principal modes of bending and twisting of the ship when she voyages in ice in collaboration with the German Space Agency and the Technische Hochschule, Ingolstadt, Germany.