Response of a compliant cylinder to irregular waves
This paper examines the behaviour of a rigid, compliant, vertical cylinder in irregular waves. Tests have been carried with a rigid circular cylinder hinged at its base, and supported above the water surface by four horizontal springs. Springs of different stiffnesses were used to change the natural...
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The American Society of Mechanical Engineers
1992
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:12338665 2023-05-15T14:22:28+02:00 Response of a compliant cylinder to irregular waves Nwogu, Okey Cornett, Andrew Haritos, Nicholas 1992 text https://nrc-publications.canada.ca/eng/view/object/?id=937c2da0-7025-4d88-af68-ab7aa66a7f48 https://nrc-publications.canada.ca/fra/voir/objet/?id=937c2da0-7025-4d88-af68-ab7aa66a7f48 eng eng The American Society of Mechanical Engineers Proceedings of the 11th International Conference on Offshore Mechanics and Arctic Engineering 1992: Calgary, Alberta, Canada, June 7-12, 1992. Vol. 1, Pt. A, Offshore technology, 11th International Conference on Offshore Mechanics and Arctic Engineering, June 7-12, 1992, Calgary, Alberta, Canada, ISBN: 0791809102, Publication date: 1992, Pages: 189–196 article 1992 ftnrccanada 2021-10-09T23:00:13Z This paper examines the behaviour of a rigid, compliant, vertical cylinder in irregular waves. Tests have been carried with a rigid circular cylinder hinged at its base, and supported above the water surface by four horizontal springs. Springs of different stiffnesses were used to change the natural frequency of oscillation of the cylinder. The cylinder was tested in both fixed and compliant modes, using a variety of irregular waves. A sweep frequency test signal was also used to examine the frequency dependent characteristics of the cylinder response in detail. Frequency domain force coefficients are estimated from the measured forces. Interesting behaviour if observed in the pre- and post-resonance flow regimes. The applicability of force coefficients determined from fixed structures to compliant structures is investigated. Two different formulations of the equations of motion are solved in the i=time domain suing constant force coefficients, and compared with the measured response. NRC publication: Yes Article in Journal/Newspaper Arctic National Research Council Canada: NRC Publications Archive |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
description |
This paper examines the behaviour of a rigid, compliant, vertical cylinder in irregular waves. Tests have been carried with a rigid circular cylinder hinged at its base, and supported above the water surface by four horizontal springs. Springs of different stiffnesses were used to change the natural frequency of oscillation of the cylinder. The cylinder was tested in both fixed and compliant modes, using a variety of irregular waves. A sweep frequency test signal was also used to examine the frequency dependent characteristics of the cylinder response in detail. Frequency domain force coefficients are estimated from the measured forces. Interesting behaviour if observed in the pre- and post-resonance flow regimes. The applicability of force coefficients determined from fixed structures to compliant structures is investigated. Two different formulations of the equations of motion are solved in the i=time domain suing constant force coefficients, and compared with the measured response. NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Nwogu, Okey Cornett, Andrew Haritos, Nicholas |
spellingShingle |
Nwogu, Okey Cornett, Andrew Haritos, Nicholas Response of a compliant cylinder to irregular waves |
author_facet |
Nwogu, Okey Cornett, Andrew Haritos, Nicholas |
author_sort |
Nwogu, Okey |
title |
Response of a compliant cylinder to irregular waves |
title_short |
Response of a compliant cylinder to irregular waves |
title_full |
Response of a compliant cylinder to irregular waves |
title_fullStr |
Response of a compliant cylinder to irregular waves |
title_full_unstemmed |
Response of a compliant cylinder to irregular waves |
title_sort |
response of a compliant cylinder to irregular waves |
publisher |
The American Society of Mechanical Engineers |
publishDate |
1992 |
url |
https://nrc-publications.canada.ca/eng/view/object/?id=937c2da0-7025-4d88-af68-ab7aa66a7f48 https://nrc-publications.canada.ca/fra/voir/objet/?id=937c2da0-7025-4d88-af68-ab7aa66a7f48 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Proceedings of the 11th International Conference on Offshore Mechanics and Arctic Engineering 1992: Calgary, Alberta, Canada, June 7-12, 1992. Vol. 1, Pt. A, Offshore technology, 11th International Conference on Offshore Mechanics and Arctic Engineering, June 7-12, 1992, Calgary, Alberta, Canada, ISBN: 0791809102, Publication date: 1992, Pages: 189–196 |
_version_ |
1766295043912499200 |