WAVE FORCES INDUCED BY IRREGULAR WAVES ON A VERTICAL CIRCULAR CYLINDER.

Abstract

In order to examine irregular wave forces on a small diameter cylinder, laboratory experiments have been conducted on water particle velocities and wave forces with various kinds of irregular waves. Results indicate that the time variation and the spectral distribution of wave forces can be calculated adequately from water level variations by using the methods proposed by R. O. Reid and L. E. Borgman. With respect to the irregular wave forces on a large diameter cylinder, a new calculation method is shown, applying Reid's linear filters to R. C. Mac Camy and R. A. Fuch's diffraction theory.