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Friction damper for vibration control in offshore steel jacket platforms

Golafshani, A. A ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jcsr.2008.07.008
  3. Publisher: 2009
  4. Abstract:
  5. The performance of friction dampers to mitigate the wave-induced vibrations in jacket-type offshore platforms has been investigated in this study. Due to the random nature of ocean waves, a full stochastic analysis method has been used to evaluate the response of the structures equipped with these devices. A stochastic linearization technique has also been used to take the nonlinear behavior of these hysteretic dampers into account. At last, the developed mathematical formulation has been applied to evaluate the response of realistic models, and to find out the optimal values for the adjustable parameters of the friction dampers to dissipate the wave induced vibrations of the platforms. © 2008 Elsevier Ltd. All rights reserved
  6. Keywords:
  7. Damping ; Drilling platforms ; Lattice vibrations ; Linearization ; Oceanography ; Offshore structures ; Spectrum analyzers ; Steel ; Systems analysis ; Tribology ; Water waves ; Adjustable parameters ; Friction damper ; Friction dampers ; Hysteretic dampers ; Induced vibrations ; Mathematical formulations ; Nonlinear behaviors ; Ocean waves ; Off shore platforms ; Offshore steels ; Optimal values ; Power spectral analysis ; Realistic models ; Steel jacket platforms ; Stochastic analyses ; Stochastic linearization ; Stochastic linearizations ; Wave induced vibrations ; Friction
  8. Source: Journal of Constructional Steel Research ; Volume 65, Issue 1 , 2009 , Pages 180-187 ; 0143974X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0143974X08001727