Measurement Of Bottom Pressures On Planing Craft
Author(s)
G.J. Grigoropoulos, D.P. Damala
Abstract
Measurement of bottom pressures on
planing craft
G.J. Grigoropoulos, D.P. Damala
Department of Naval Architecture and Marine Engineering,
National Technical University of Athens, Greece
Abstract
The knowledge of the pressures on the bottom of vessels sailing at high
speeds is essential for the design bottom plate and its scantlings.
However, only a few semi-empirical methods based on scarce full or
model scale experimental results can be found in the open literature.
The shortage of measured data is partly due to the complexity of the
measurements. This kind of data is valuable for validating the proposed
analytical methods and for providing background to the rules issued by
the classification societies. Two methods are reviewed in this paper to
measure the pressure distribution on the bottom of fast ships. In the
former, membrane-type pressure sensors are fitted on a grid of points
on the bottom of the vessel, while in the latter Pitot-tubes are connected
to digital pressure
Keywords
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