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Overall dynamic characteristics of tension leg platforms

Conference · · Offshore Technol. Conf.; (United States)
OSTI ID:5249591

In TLP (tension leg platform) motion analysis, the problem is usually simplified by idealizing the tethers as weightless springs. While this approximation appears to be generally adequate for shallow waters, the relative tether/platform weight ratio increases very rapidly as the water depth increases, thus making it necessary to treat the TLP as a continuous system rather than as a rigid body with only six degrees of freedom. The purpose of this paper is to examine the variation of the overall dynamic response characteristics of a TLP as a function of the water depth, with particular emphasis on such important parameters as the tether/platform weight ratio, the periods of the ''principal modes'' (i.e., heave, pitch, roll, surge, sway and yaw) and the shapes and periods of the ''secondary modes''.

Research Organization:
Brown and Root Inc.
OSTI ID:
5249591
Report Number(s):
CONF-830514-
Journal Information:
Offshore Technol. Conf.; (United States), Journal Name: Offshore Technol. Conf.; (United States) Vol. 3; ISSN OSTCB
Country of Publication:
United States
Language:
English

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