Abstract
The ramming interaction between a ship and a multi-year
ice floe is studied by model tests of the ice-breaking
supply vessel Canmar Kigoriak. A flexible backbone model
of Kigoriak is designed and constructed. The model
backbone is instrumented with strain gauges to measure
hull bending moments and shear forces in five sections.
The model is calibrated both statically and dynamically.
The ramming tests are performed into an ice block formed
of model ice sheets in an ice model basin. The forces of
the ice block during the rams are measured with six
component balance. The results are presented in the form
of signal time histories and plots of the extreme values
of different quantities as a function of ship and ice
parameters. The model test results are compared with the
available data from the Canmar Kigoriak full scale
trials.
| Original language | English |
|---|---|
| Place of Publication | Espoo |
| Publisher | VTT Technical Research Centre of Finland |
| Number of pages | 156 |
| ISBN (Print) | 951-38-3883-8 |
| Publication status | Published - 1991 |
| MoE publication type | Not Eligible |
Publication series
| Series | Valtion teknillinen tutkimuskeskus. Tiedotteita |
|---|---|
| Number | 1251 |
| ISSN | 0358-5085 |
Keywords
- ships
- icebreakers
- loads (forces)
- ice
- sea ice
- floating ice
- ship models
- bending moments
- shear strain
- shear stress
- shear tests
- strain gages
- strain measurement
- strain rate
- shear rate
- stress analysis
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Cite this
Nyman, T., & Kivimaa, S. (1991). Ramming model tests of the MV Canmar Kigoriak. VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 1251