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NEW PUBLICATIONS
SUPPORT DYNAMIC ANALYSIS, FATIGUE ASSESSMENT FOR OFFSHORE STRUCTURE
CLASSIFICATION
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s offshore field development continues to expand,
engineers must conduct on-going technical analysis of offshore
structures to meet classification requirements. Two new ABS |
publications will assist industry operators by providing the latest
data and cutting edge analysis for self-elevating drilling units and
other offshore structures, says Ernesto Valenzuela, ABS Offshore Technology
Manager.
“Industry operators need practical applications of the latest
research and sound guidance on how to implement these advances,”
said Valenzuela.
The latest ABS technical updates provide research and support
for analyzing and addressing a variety of challenges posed by dynamic
environmental forces and their projected impact upon the stress
limits of offshore structures:
- Guidance
Notes on Dynamic Analysis Procedure for Self-Elevating Drilling
Units.
For jackup design, industry operators have identified
a need for more thorough understanding and consideration of dynamic
wave-induced responses. This set of guidance notes, when used
in conjunction with the existing set of ABS MODU rules, provides
engineers with criteria for acceptable practices in the classification
of jackup structures. The foundation work for this publication
is the ABS Offshore Technology report entitled “Procedure
for Jackup Dynamic Analysis” which also includes discussion
of spud-can soil-rotational stiffness effects.
- Commentary to the Guide for Fatigue Assessment
of Offshore Structures.
Calculation of the expected fatigue life of a structure
is governed by a complex set of variable parameters. The simplified
method, the spectral method and the deterministic method are outlined
in the Guide
for Fatigue Assessment of Offshore Structures.
This new commentary addresses the origin and background of existing
and alternative methods of assessment to assist engineers when
conducting fatigue review of as part of the classification of
offshore structures.
Both of these publications aid the offshore industry to make the
best use of ABS guidance practices for offshore structures including
ship-shape vessels, says Valenzuela.
“By addressing the most critical and frequently asked questions,
ABS provides vital assistance to clients as they conduct performance
plan reviews and organize their submittals for classification,”
he said.
Guidance Notes on Dynamic Analysis Procedure for Self-Elevating
Drilling Units and Commentary to the Guide for Fatigue
Assessment of Offshore Structures are available on the ABS
web site for free download. For more information, contact Ernesto
Valenzuela at evalenzuela@eagle.org.
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