Sensitivity of flexibility monitoring of offshore jacket platforms

Journal Article · Sat Mar 01 04:00:00 EST 1986 · J. Energy Resour. Technol.; (United States)

DOI:https://doi.org/10.1115/1.3231244· OSTI ID:5839162

Rubin, S; Coppolino, R N

Flexibility monitoring is a vibration-based method for simplifying the detection of major underwater damage on offshore jacket platforms. Ambient vibrations are detected at each of the underwater framing levels relative to abovewater vibration in the fundamental sway and torsional modes. Derived are flexibility parameters which relate to the shear flexibilities of each framing bay and of the foundation. Great promise has been shown by laboratory and field testing. This paper presents a comprehensive sensitivity assessment for severance of diagonal members over a wide range of structual redundancy for generic platform configurations.

• Research Organization: The Aerospace Corp., Segundo, CA
• OSTI ID: 5839162
• Journal Information: J. Energy Resour. Technol.; (United States), Journal Name: J. Energy Resour. Technol.; (United States) Vol. 108:1; ISSN JERTD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
42 ENGINEERING
423000 -- Engineering-- Marine Engineering-- (1980-)
BENCH-SCALE EXPERIMENTS
DAMAGE
ENGINEERING
FIELD TESTS
FLEXIBILITY
FOUNDATIONS
INSPECTION
MECHANICAL PROPERTIES
MECHANICAL STRUCTURES
MECHANICAL VIBRATIONS
MONITORING
NATURAL GAS WELLS
OFFSHORE PLATFORMS
OIL WELLS
SAFETY ENGINEERING
SENSITIVITY ANALYSIS
SHEAR
SUPPORTS
TENSILE PROPERTIES
TESTING
TORSION
UNDERWATER OPERATIONS
WELLS