Research Facilities

AALTO Ice Tank

The Aalto Ice Tank is a multipurpose basin, which is mainly used for ice model scale tests, but can also be employed for tests in open water. The tank is 40m wide and 40m long with a depth of 2.8m. The facility has a rail-bound bridge and a towing carriage underneath. On one side a 40m wide segmented wedge type wave maker is installed, which can generate regular and irregular waves. 

It is ideally suited for testing ships and other maritime structures in ice conditions. Tests in model scale ice are the core function of the facility. The model scale ice is fine grained and generated by a spraying process. 

The ice tank was established early 1980´s in Helsinki University of Technology and over 25 years it has provided experience of model scale testing in ice. The activities in the tank have been related to resistance and propulsion tests of ships, maneuvering tests and various marine structures and their interaction with ice and the modeling of natural ice formations such as ice-ridges. The facility and its ice have been proving their functionality over the years in many research tests and commercial tests.

 

TUHH Test Facilities for Ice-Structure-Interaction

The ice-structure-interaction can be studied in different scales in Hamburg University of Technology. The ice is produced in a reefed in a controled environment. Small scale tests are conducted with a controlled indentation force in a small cold room. In addition, the drop tower enables high speed tests in small scale. Large scale tests can be conducted in a big tests rig with maximum force up to 4 MN. The measurements equipments consist of TekScan tactile pressure foils, high speed cameras and laser displacement sensors. Measurement amplifiers and sensors enable sampling rates until 100 kHz.

Reefer.jpg

Reefer, ice laboratory

  • Minimum temperature -40°C
  • Ice production
  • Ice preparation
  • Thin sections
Small_cold_room.jpg

Small cold room, small scale tests

  • Maximum force 160 kN
  • Maximum velocity 1000 mm/s
  • Cylinder displacement 400 mm
  • Minimum temperature -10°C
drop_tower.jpg

Drop tower, small scale tests

  • Maximum velocity 6,5 m/s
  • Maximum impact mass 1000 kg
big_test-rig.jpg

Big test rig, large scale tests

  • Maximum force 4 MN
  • Maximum velocity 2 mm/s
  • Cylinder displacement 400 mm
  • Cooling of the test structure

 

Page content by: | Last updated: 10.09.2016.