0

Full Content is available to subscribers

Subscribe/Learn More  >

Similar Model Design and Modal Experimental Analysis of Offshore Platforms

[+] Author Affiliations
Rujian Ma, Yantao An, Guixi Li

University of Jinan, Jinan, Shandong, China

Paper No. OMAE2009-79058, pp. 41-46; 6 pages
doi:10.1115/OMAE2009-79058
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

The influence of material damping to the similar model design and experimental analysis were studied by theoretical analysis. A similar model of an offshore platform is designed and constructed on the basis of the analysis. The modal experiments have been done on the model with the method of multi-point excitation and single-point response measurement. The dynamic parameters of the model were identified including natural frequencies, structural modes and shapes. The results showed that material damping does not affect the geometry of similar model and have a little effect on the natural frequency which can be ignored. But the influence to the dynamic responses is so great that material damping must be taken into account in the analysis of experimental data. In order to facilitate the application, the transformation relations of damping ratio and the damping factor are given in this paper. The comparison between experimental results the simulation results indicates the consistency of design and construction of the similar model and reliability of the experimental data.

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