Structural integrity monitoring of an offshore platform

Conference · Sat Dec 31 00:00:00 EST 1994

OSTI ID:433661

Chiostrini, S; Vignoli, A ^[1]

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1. Univ. of Florence (Italy)

The purpose of this study is to examine the possibility of detecting changes in the structural response of an offshore platform due to damage. The Vega A eight-legs steel platform presently operating in the Sicily Channel is examined, with the help of a system of vibration monitoring. In the paper, changes of the structural response due to the collapse of nodes in the deeper part of the jacket are evaluated numerically with respect to the undamaged behavior, and the feasibility of the monitoring system to detect such changes is examined. An attempt is made in order to detect also the location of the damage through the examination of shifts in the first natural frequencies.

• OSTI ID: 433661
• Report Number(s): CONF-940409-; ISBN 1-880653-10-9; TRN: IM9709%%94
• Resource Relation: Conference: 4. international conference on offshore and polar engineering, Osaka (Japan), 10-15 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of The proceedings of the fourth (1994) international offshore and polar engineering conference. Volume 4; Ueda, Yukio; Tomita, Yasumitsu [eds.] [Osaka Univ. (Japan)]; Dos Santos, J.F. [ed.] [GKSS Forschungszentrum Geesthacht (Germany)]; Langen, I. [ed.] [Statoil, Stavanger (Norway)]; Waagaard, K. [ed.] [Veritec, Hovik (Norway)]; PB: 692 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
OFFSHORE PLATFORMS
SAFETY ANALYSIS
INSPECTION
MECHANICAL VIBRATIONS
MONITORING
SICILY
DYNAMIC LOADS
RESPONSE FUNCTIONS
RISK ASSESSMENT