Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces
During September and October of 1985 the Polar Sea conducted ice impact tests on heavily ridged ice features in the Alaskan portion of the Beaufort Sea. Bending Strain gage measurements were used to estimate the longitude bending moment distribution of the POLAR SEA during impacts with ice pressure...
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ftdtic:ADA231907 2023-05-15T15:40:17+02:00 Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces Chen, Yung-Kuang Tunik, Alfred L. Chen, Albert P-Y AMERICAN BUREAU OF SHIPPING NEW YORK OCEAN ENGINEERING DIV 1990-08 text/html http://www.dtic.mil/docs/citations/ADA231907 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA231907 en eng http://www.dtic.mil/docs/citations/ADA231907 Approved for public release; distribution is unlimited. Document partially illegible. DTIC AND NTIS Snow Ice and Permafrost Marine Engineering *SHEAR PROPERTIES MEASUREMENT GLOBAL SHIPS IMPACT DISTRIBUTION ACCELERATION IMPACT TESTS LOADS(FORCES) COMPARISON BENDING TIME ICE RESPONSE HISTORY PRESSURE STRAIN GAGES BENDING MOMENTS LONGITUDE RIDGES BEAUFORT SEA VELOCITY *ICEBREAKERS *SHIP BOWS *SEA ICE *ICE LOADS LOAD DISTRIBUTION RAMMING Text 1990 ftdtic 2016-02-22T23:31:37Z During September and October of 1985 the Polar Sea conducted ice impact tests on heavily ridged ice features in the Alaskan portion of the Beaufort Sea. Bending Strain gage measurements were used to estimate the longitude bending moment distribution of the POLAR SEA during impacts with ice pressure ridges. Compressive strains along the stem and ship acceleration and velocity measurements were also recorded. This paper describes the methodology for determining the global ice impact force from the measurements and presents the results of these tests. A comparison of the results with other available data is also presented. Hull strain, and impact force time histories are presented along with the longitudinal bending and shear distributions during ice impact events. The results indicate that the method used in estimating the impact force provided an excellent understanding of ship-ice interaction. This supplement to the main report (Global Ice Forces and Ship Response to Ice, SSC- 341 ADA231539) contains a discussion of a finite element model that was developed to predict ice ramming forces and includes a comparison of the model's results with selected ramming events. Text Beaufort Sea Ice permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Marine Engineering *SHEAR PROPERTIES MEASUREMENT GLOBAL SHIPS IMPACT DISTRIBUTION ACCELERATION IMPACT TESTS LOADS(FORCES) COMPARISON BENDING TIME ICE RESPONSE HISTORY PRESSURE STRAIN GAGES BENDING MOMENTS LONGITUDE RIDGES BEAUFORT SEA VELOCITY *ICEBREAKERS *SHIP BOWS *SEA ICE *ICE LOADS LOAD DISTRIBUTION RAMMING |
spellingShingle |
Snow Ice and Permafrost Marine Engineering *SHEAR PROPERTIES MEASUREMENT GLOBAL SHIPS IMPACT DISTRIBUTION ACCELERATION IMPACT TESTS LOADS(FORCES) COMPARISON BENDING TIME ICE RESPONSE HISTORY PRESSURE STRAIN GAGES BENDING MOMENTS LONGITUDE RIDGES BEAUFORT SEA VELOCITY *ICEBREAKERS *SHIP BOWS *SEA ICE *ICE LOADS LOAD DISTRIBUTION RAMMING Chen, Yung-Kuang Tunik, Alfred L. Chen, Albert P-Y Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
topic_facet |
Snow Ice and Permafrost Marine Engineering *SHEAR PROPERTIES MEASUREMENT GLOBAL SHIPS IMPACT DISTRIBUTION ACCELERATION IMPACT TESTS LOADS(FORCES) COMPARISON BENDING TIME ICE RESPONSE HISTORY PRESSURE STRAIN GAGES BENDING MOMENTS LONGITUDE RIDGES BEAUFORT SEA VELOCITY *ICEBREAKERS *SHIP BOWS *SEA ICE *ICE LOADS LOAD DISTRIBUTION RAMMING |
description |
During September and October of 1985 the Polar Sea conducted ice impact tests on heavily ridged ice features in the Alaskan portion of the Beaufort Sea. Bending Strain gage measurements were used to estimate the longitude bending moment distribution of the POLAR SEA during impacts with ice pressure ridges. Compressive strains along the stem and ship acceleration and velocity measurements were also recorded. This paper describes the methodology for determining the global ice impact force from the measurements and presents the results of these tests. A comparison of the results with other available data is also presented. Hull strain, and impact force time histories are presented along with the longitudinal bending and shear distributions during ice impact events. The results indicate that the method used in estimating the impact force provided an excellent understanding of ship-ice interaction. This supplement to the main report (Global Ice Forces and Ship Response to Ice, SSC- 341 ADA231539) contains a discussion of a finite element model that was developed to predict ice ramming forces and includes a comparison of the model's results with selected ramming events. |
author2 |
AMERICAN BUREAU OF SHIPPING NEW YORK OCEAN ENGINEERING DIV |
format |
Text |
author |
Chen, Yung-Kuang Tunik, Alfred L. Chen, Albert P-Y |
author_facet |
Chen, Yung-Kuang Tunik, Alfred L. Chen, Albert P-Y |
author_sort |
Chen, Yung-Kuang |
title |
Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
title_short |
Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
title_full |
Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
title_fullStr |
Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
title_full_unstemmed |
Global Ice Forces and Ship Response to Ice. Analysis of Ice Ramming Forces |
title_sort |
global ice forces and ship response to ice. analysis of ice ramming forces |
publishDate |
1990 |
url |
http://www.dtic.mil/docs/citations/ADA231907 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA231907 |
genre |
Beaufort Sea Ice permafrost Sea ice |
genre_facet |
Beaufort Sea Ice permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA231907 |
op_rights |
Approved for public release; distribution is unlimited. Document partially illegible. |
_version_ |
1766372466944376832 |