Recently, as part of the building contract for the new Brazilian jack-up drilling platforms, an operational challenge was raised: to launch these units from the building site, where neither dry dock nor launching ground ways exist. Economically, the best alternative was to launch these jack-ups using the available barges used commonly for jacket launch. Due to the marked differences between a jacket and a jack-up, the implementation of this novel launch operation required a careful feasibility study. Model tests were required to measure the motions of the barge and the jack-up and to evaluate the loads on the barge rocker arms. The present paper discusses the experimental approach, test setup, calibration procedures, and some results from the hydrodynamics perspective.

References

References
1.
Rawson
,
K. J.
, and
Tupper
,
E. C.
,
2001
,
Basic Ship Theory
,
5th ed.
, Vol.
1
,
Butterworth Heinemann
,
London
, Chap. 8.
2.
Noble, Denton, and Associates
,
1984
, Transportation and Installation of Offshore Jackets: Decks and Modules, Noble Denton and Associates, Oslo, Norway.
3.
Jo
,
C. H.
,
Kim
,
K. S.
, and
Lee
,
S. H.
,
2001
, “
Criterion of Offshore Jacket Launching Analysis
,”
Proc. of the 11th International Offshore and Polar Engineering Conference
,
Stavanger, Norway
, pp.
90
96
.
4.
Jo
,
C. H.
,
Kim
,
K. S.
, and
Lee
,
S. H.
,
2002
, “
Parametric Study on Offshore Jacket Launching
,”
Ocean Eng.
,
29
, pp.
1959
1979
.10.1016/S0029-8018(01)00108-1
5.
GL Noble Denton
,
2010
, “
Guidelines for the Transportation and Installation of Steel Jackets
,” Report No. 0028/ND, Rev. 4.
6.
Chakrabarti
,
S. K.
,
1994
,
Offshore Structure Modeling (Advanced Series on Ocean Engineering)
, Vol.
9
,
World Scientific
,
Singapore
.
7.
Krim
,
J.
,
1996
, “
Rozamiento a Escala Atómica
,”
Investigación y Ciencia
,
243
, pp.
46
53
.
8.
Eagleson
,
H. V.
,
1945
, “
An Experimental Method for Determining Coefficients of Sliding Friction
,”
Am. J. Phys.
,
13
, pp.
43
44
.10.1119/1.1990653
You do not currently have access to this content.