Showing papers on "Rogue wave published in 1978"
TL;DR: In this article, the authors investigated the characteristics of storm waves and found that wave steepness is a critical parameter from a dynamic loading point of view, and that large waves of extreme steepness can exist in major storms.
Abstract: Hall girder failures and major damage of commercial shipping, which have resulted from operating in storm wave conditions daring the past several years, have been examined to determine if design for conventional, statically balanced “hogging” and “sagging” conditions Is entirely adequate. A synopsis of the buildup of wind and wave conditions has been presented for five casualties in American waters so as to characterize the seaway conditions in which critical bending moments have been encountered. The characteristics of storm waves have been investigated initially by reviewing wave data obtained in the Gulf of Mexico during Hurricane CAMTLLE. These wave data, superimposed on MARINER Model Slamming Data, illustrate the likelihood of severe “slamming” loads occurring under extreme storm conditions. From these studies it is concluded that wave steepness is a critical parameter from a dynamic loading point of view, and that large waves of extreme steepness can exist in major storms. Based upon these findings, as well as observed storm damage to hull girders, It is recommended that two additional loading cases be considered which provide for 1) impulsive bottom or bow flare slamming loads acting in combination with ordinary wave loadings, and 2) impulsive weatherdeck loads in breaking waves acting in combination with ordinary wave loadings.
3 citations