Assessment of wind-induced responses for offshore jacket platforms based on high frequency force balance tests
by Hongbing Liu; Guoming Chen; Liping Sun; Benrui Zhu; Ao Huang; Yipei Zhao
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 26, No. 4, 2021

Abstract: This paper focuses on the wind sensitivity of large offshore jacket platforms subjected to hurricanes, and a 1:100 scaled model is tested in a boundary wind tunnel under 0~360° wind directions using the high frequency force balance (HFFB) technique. Based on the experimental results, a corrected frequency-domain calculation method for evaluating wind-induced responses is derived, which can eliminate the resonance effects of the test model. The results show that: the first seven or higher-order mode combinations of platforms should be adopted to evaluate the dynamic wind-induced responses; the different mode coupling effects show a complicated pattern, especially in the across wind direction, and the complete quadratic combination method is suggested; the root mean square (RMS) displacement and acceleration of the derrick present approximate O shapes at different heights, and the maximum values reach 9.35 cm and 49.98 cm/s2. Therefore, the wind-induced vibration of large offshore jacket platforms should be under stronger control to ensure their safety. [Received: April 15, 2018; Accepted: December 13, 2019]

Online publication date: Thu, 08-Apr-2021

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 Oil, Gas and Coal Technology (IJOGCT):
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