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Odd M. Faltinsen Jan Kvålsvold Jan V. Aarsnes 《Journal of Marine Science and Technology》1997,2(2):87-100
The objective is to find slamming-induced local stresses in the steel or aluminum wetdeck of a multihull vessel. This is studied
theoretically by representing the wetdeck as a beam model and accounting for dynamic hydroelastic effects. Two numerical methods
are used, one being a simplified asymptotic solution. Satisfactory agreement between the two methods is reported. Experimental
drop tests of horizontal elastic plates of steel and aluminum are also reported, and the results from the experiments agree
well with the numerical computations. This study reveals, both numerically and experimentally, that slamming-induced local
stresses are strongly influenced by dynamic hydroelastic effects. The maximum bending stresses are insensitive to where waves
hit, the curvature of the waves, and maximum pressures. Measured maximum pressures are very sensitive to external conditions,
and cannot be used as a measure of maximum local bending stresses. A simple procedure for local design stresses due to wetdeck
slamming is outlined. 相似文献
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