0

Full Content is available to subscribers

Subscribe/Learn More  >

On the Dynamics and Application of Sandwich Hydroelastic Foundation for Offshore Structures and Systems

[+] Author Affiliations
Vincent O. S. Olunloyo, Charles A. Osheku, Olatunde Damisa

University of Lagos, Lagos, Nigeria

Paper No. OMAE2009-79565, pp. 541-555; 15 pages
doi:10.1115/OMAE2009-79565
From:
  • ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology
  • Honolulu, Hawaii, USA, May 31–June 5, 2009
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4341-3 | eISBN: 978-0-7918-3844-0
  • Copyright © 2009 by ASME

abstract

Subsea systems and structures are constantly being redesigned, reshaped and reconstructed to enhance offshore exploration, production and exploitation activities. Their structural stability and integrity are strongly dependent on the ability of their foundation footings to dissipate vibration energy arising from external influences such as hydrodynamic forces and propagation of seismic waves through a moving seabed or ocean floor. In this paper, the dynamic behavior, suitability and application of sandwich hydroelastic foundation system for vibration control and enhancement of structural stability in subsea structures is investigated analytically. By employing mechanics of contact and laminated thin plate theory, a well posed boundary value partial differential equation is formulated for a fluid-structure-soil interaction model of slip damping mechanism. For this problem, the proposed sandwich foundation footing is assumed to be partially buried on a moving seabed and is idealized as two sandwich homogenous hydroelastic plate layers in a moving elastic subsoil layer. By assuming linear pressure profiles across the plate axes, the effects of varying pressure gradients and subsoil layer sliding velocities, across the foundation axes, on the energy dissipation mechanism are computed for design analysis and applications.

Copyright © 2009 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In