Ramming model tests of the MV Canmar Kigoriak

Research output: Book/ReportReport

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 languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages156
ISBN (Print)951-38-3883-8
Publication statusPublished - 1991
MoE publication typeNot Eligible

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tiedotteita
Number1251
ISSN0358-5085

Fingerprint

model test
ice
supply vessel
hull
ice sheet
gauge
history
basin
ship

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

Cite this

Nyman, T., & Kivimaa, S. (1991). Ramming model tests of the MV Canmar Kigoriak. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tiedotteita, No. 1251
Nyman, Tapio ; Kivimaa, Seppo. / Ramming model tests of the MV Canmar Kigoriak. Espoo : VTT Technical Research Centre of Finland, 1991. 156 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 1251).
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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.",
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",
author = "Tapio Nyman and Seppo Kivimaa",
year = "1991",
language = "English",
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series = "Valtion teknillinen tutkimuskeskus. Tiedotteita",
publisher = "VTT Technical Research Centre of Finland",
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}

Nyman, T & Kivimaa, S 1991, Ramming model tests of the MV Canmar Kigoriak. Valtion teknillinen tutkimuskeskus. Tiedotteita, no. 1251, VTT Technical Research Centre of Finland, Espoo.

Ramming model tests of the MV Canmar Kigoriak. / Nyman, Tapio; Kivimaa, Seppo.

Espoo : VTT Technical Research Centre of Finland, 1991. 156 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 1251).

Research output: Book/ReportReport

TY - BOOK

T1 - Ramming model tests of the MV Canmar Kigoriak

AU - Nyman, Tapio

AU - Kivimaa, Seppo

PY - 1991

Y1 - 1991

N2 - 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.

AB - 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.

KW - ships

KW - icebreakers

KW - loads (forces)

KW - ice

KW - sea ice

KW - floating ice

KW - ship models

KW - bending moments

KW - shear strain

KW - shear stress

KW - shear tests

KW - strain gages

KW - strain measurement

KW - strain rate

KW - shear rate

KW - stress analysis

M3 - Report

SN - 951-38-3883-8

T3 - Valtion teknillinen tutkimuskeskus. Tiedotteita

BT - Ramming model tests of the MV Canmar Kigoriak

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Nyman T, Kivimaa S. Ramming model tests of the MV Canmar Kigoriak. Espoo: VTT Technical Research Centre of Finland, 1991. 156 p. (Valtion teknillinen tutkimuskeskus. Tiedotteita; No. 1251).