Abstract
The paper deals with analysis of grounding of high-speed crafts.
It is the purpose to present a comprehensive mathematical model
for calculation of the overall dynamic ship response during
grounding. This procedure is applied to derive the motions, the
time varying sectional forces and the local loads during grounding
on plane, sloping, sandy bottoms for six different designs of fast
monohull ships made from steel, aluminium or GRP sandwich
materials. The results show that the effect of the hull
flexibility is to reduce the overall dynamic sectional loads on
the hull girder. The considered numerical examples also indicate
that, even with impact speeds of 40 knots against a 1:10 sloping
bottom, the global strength of the hull girder is not exceeded by
the grounding induced loads.For the local deformation of
high-speed ship hulls at the point of contact with the ground, the
paper presents experimental results from crushing tests of
aluminium hull girder components with realistic full-scale
scantlings. A comparison with existing simplified calculation
procedures for ductile metallic structures show that these
procedures cannot be used to predict the crushing behaviour of the
fore body of high speed ships.
| Original language | English |
|---|---|
| Title of host publication | Conference Proceedings of DERA International Conference |
| Place of Publication | Dunfermline |
| Publication date | 1997 |
| Publication status | Published - 1997 |
| Event | DERA International Conference, Advances in Marine
Structures III - Dunfermline Duration: 1 Jan 1997 → … |
Conference
| Conference | DERA International Conference, Advances in Marine Structures III |
|---|---|
| City | Dunfermline |
| Period | 01/01/1997 → … |