Prediction of Impact Loads Due to Extreme Vessel Motions
Abstract
A sea loads based ship structural design technology includes components related to nonlinear hydrodynamics, nonlinear dynamics, and a probabilistic or reliability-based analysis of ship hydrodynamic loading. The thrust of the research conducted at the University of Michigan was on the prediction of local loads resulting from bottom impact and flare slamming. Details of spray jet development and flow separation points have been investigated and their influence on the overall hydrodynamic loads determined. The project's goal has been the development of a fundamentally sound methodology by which the design hydrodynamic loads acting on a vessel in extreme seas can be computed. The emphasis was on the prediction of local loads resulting from bottom impact and flare slamming for symmetric and asymmetric hull shapes. The result of the analysis is time histories of pressures and local loads which can now be incorporated into subsequent ship structural analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 20, 1998
- Accession Number
- ADA342435
Entities
People
- Armin W. Troesch
Organizations
- University of Michigan