ABSTRACT

In this study, a stability assessment based on work / energy balance principle considering wave and wind effects against IMO intact stability criteria is emphasized. The energy balance approach proposed by Moseley in 1850 is the concept of “dynamic stability” as the work done by in inclining a ship and consequently stored as potential energy balance of the energy of excitation forces and the total response of the ship in the ship stability problem. The energy balance approach, in which the time- dependent variation [̅𝐺̅̅𝑍̅(f, 𝑡)] of righting arm curve of the ship subjected to wave excitation and wind forces is modeled, provides reliability for stability calculations. Based on this principle, a stability model developed according to the energy balance principle for small boats is discussed and the results obtained from the application of the model are emphasized.