Hull Bending Moment Due to Ship Bottom Slamming in Regular Waves

A review of the existing literature on the overall response of ships to bottom slamming is presented. A mathematical formulation of the vibratory bending moment due to bottom impact slamming in regular waves is then developed. The hydrodynamic problem concerning the definition of the loads is first discussed and a particular physical model is adopted for determining the hull vibratory behavior. Based on this formulation, a general computerized procedure leading to the time-history representation of the midship bending moment is developed. Finally, an illustrative example of application to a Mariner ship is described and the results are related to some available data.