Analytical investigation of wave slamming loads on horizontal circular cylinders

Abstract

Horizontal cylinders are subjected to impact loads when suddenly submerged in water. Analysis of the wave forces acting on a fixed , slender, horizontal circular cylinder in the vicinity of the free surface is described here by taking into account the intermittency of submergence and wave slamming by a new analytical approach for deriving an expression for the slamming coefficient. A computer programme is developed on the basis of the aforesaid analysis. The programme is written in FORTRAN 77 and executed on the IBM 4331 L02 computer. The computational results are plotted and interpreted to explain the salient features of wave slamming. These results are expected to be useful in the assessment of hydrodynamic loads on offshore structures like the braces between legs or hulls for jacket structures and semi-submersibles.