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Numerical and experimental study on dynamic responsemitigation of tension leg platform using tuned mass damper

Tabeshpour, M. R ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.5957/JOSR.06200039
  3. Publisher: Society of Naval Architects and Marine Engineers , 2022
  4. Abstract:
  5. Responseamplitudemitigationof theoffshorestructures like tensionlegplatform(TLP) is important since these structures are always exposed to environmental loads such as waves, andin thecaseofTLP, reduction in responseamplitudeofplatformcauses reduction in stress range in tendons; thiswould increase the fatigue life of tendons, and therefore, increases the structural safety. Also providing stable conditions for machinery and crew increases the efficiency and functionality of the platform. This article thus aims to investigate the possibility and effectiveness of applying tuned mass damper (TMD) as a passive structural control systemto suppress the surgemotion of TLP that is exposed to wave load. Both numerical and experimental studies were carried out to assess the performance of the TMD. A close agreement is obtained between the numerical simulations and experimental results. The results of numerical and experimental investigations in this study indicate that applying the TMD, tuned to the surge natural frequency of the platformor frequencies close to the surge natural frequency of the platform,doesn't have efficiency in reducing the surge responses of TLP in the range of probablewaves in seas and oceans. © 2022 Society of Naval Architects and Marine Engineers. All rights reserved
  6. Keywords:
  7. Response amplitude operator (RAO) ; Tension leg platform (TLP) ; Tuned mass damper (TMD) ; Damping ; Efficiency ; Structural dynamics ; Tension-leg platforms ; Vibration control ; % reductions ; Exposed to ; Numerical and experimental study ; ON dynamics ; Passive control ; Response amplitude operator ; Tension leg platform ; Tuned mass damper ; Tuned mass dampers ; Natural frequencies
  8. Source: Journal of Ship Research ; Volume 66, Issue 4 , 2022 , Pages 265-276 ; 00224502 (ISSN)
  9. URL: https://onepetro.org/JSR/article-abstract/66/04/265/466581/Numerical-and-Experimental-Study-on-Dynamic?redirectedFrom=fulltext