Model design and testing of a large gravity-base offshore structure

AuthorSearch for: ; Search for: ; Search for: ; Search for:
ConferenceIASS-CSCE International Conference, July 1992, Toronto
AbstractThis paper describes the design of a hydrodynamically scaled model of a Gravity Base Structure (GBS) for testing in wave loading. The measurement and interpretation of the loads is potentially complicated by the dynamic response of the model and its force transducers. A finite-element model of the setup was used to simulate structural response to wave loading and subsequently identify the optimum position of force transducers to measure large global loads without loss of sensitivity/ Furthermore natural frequencies of the model were calculated. The model design required a seal to prevent pressure forces from occurring underneath or inside the model. The seal was constructed and tested to determine stiffness, hysteresis effects, and damping characteristics for small deflections. Static offset and vibration decay tests were performed on the model assembly with and without the seals attached to determine the stiffness and damping effects.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number5521
NPARC number8895716
Export citationExport as RIS
Report a correctionReport a correction
Record identifier02ac262f-31dc-4728-a049-d800a6e9e231
Record created2009-04-22
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)
Date modified: