Full Content is available to subscribers

Subscribe/Learn More  >

Construction and Optimization of the Anti-Vibration Mega-Frame Platforms

[+] Author Affiliations
Dong Zhao, Dongmei Cai, Rujian Ma, Zhonghe Chen, Jungang Wang

University of Jinan, Jinan, Shandong, China

Zhaofu Qu

Jinan Intellectual Property Office, Jinan, Shandong, China

Paper No. OMAE2007-29142, pp. 181-186; 6 pages
  • ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 1: Offshore Technology; Special Symposium on Ocean Measurements and Their Influence on Design
  • San Diego, California, USA, June 10–15, 2007
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4267-3 | eISBN: 0-7918-3799-8
  • Copyright © 2007 by ASME


A new 16-leg mega-frame platform (MFP) was constructed based on an actual jacket platform (W12–1) using the mega-frame theory. Two control platforms, traditional jacket platform and jacket platform with upright column, were also built based on principle that all the platforms had the equal or similar weight, the same upper deck structure and the same function. Every column of the MFP had the most equal load and the smallest stress under the same horizontal and vertical unequal loads. So the MFP had the best loads bearing ability of all the three types’ platforms above. In order to find out the effect of the structure parameters’ change to the platforms’ static performance, many types of MFPs were constructed by changing the number, the height and the stiffness of the major beams and/or by changing the stiffness and the angle of the major columns on the basic model MFP-313707. The analyses of all types of MFPs with different parameters under the same horizontal and vertical unequal loads show that: 1) The increase of the major beams’ height makes the platforms’ columns bear more equally than the increase of the major beams’ number; 2) The increase of major columns’ stiffness has better effect on the platform’s maximal deformation decrease and the columns’ loads equality. And the effect of the increase of the major beams’ and columns’ stiffness on the MFP’s static capability has the optimal values. Beyond the optimal values, the increase of the platforms’ weight caused by the increase of the stiffness is much bigger than the decrease of the platform’s deformation and the increase of the columns’ loads’ equality. The analyses also show that the slope angle of the platforms’ columns must be set around 10°.

Copyright © 2007 by ASME



Interactive Graphics


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

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