Experimental ship dynamic stability assessment using wave groups

Abstract

The assessment of ship performance in heavy weather, particularly dynamic stability performance, is an important but difficult assessment to make. Traditional experimental assessment methods using regular and random waves provide insight into dynamic stability performance, but may not identify, or provide a means to mitigate, specific modes of dynamic stability failure. Assessment using deterministic wave groups may provide repeatability and systematic exposure important for the assessment of ship designs, as well as aid in development and validation of numerical simulation tools. The deterministic grouped wave approach, when used to define ship behavior in heavy weather, can also be useful in the development of ship-specific operator guidance.