Hydrodynamic performance of retrofitted offshore structures using perforated cylinders
by Srinivasan Chandrasekaran; N. Madhavi
International Journal of Forensic Engineering (IJFE), Vol. 2, No. 2, 2014

Abstract: Direct impact caused by the waves on ocean structures can be efficiently reduced by encompassing the member with a perforated cover. One of the successful attempts to reduce wave forces on the damaged members is using perforated outer cover on a damaged member. Experimental investigations are carried out on perforated outer cylinder encompassing the inner cylinder for different perforation ratios under regular waves. The considered case showed a significant reduction in the wave force. This numerical study highlights the effect of annular spacing between the cylinders on the response reduction of inner cylinder. The effect of perforation on the variation of water particle kinematics along the water depth is clearly examined. The suggested technique is successful in demonstration of force reduction in the inner cylinder, which is seen as one of the effective methods of retrofitting of offshore structures.

Online publication date: Thu, 30-Apr-2015

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Forensic Engineering (IJFE):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com