NICOP - Influence of spatial and temporal variations in ice loading on the design of ship structures
Abstract
Ships are a widely used platform. Depending on their site of operation, impact with ice poses a risk thathas to be considered in the design or operation. Concerning the design aspect, various rules andregulations exist to obtain ice-classed ships, which consider a quasi-static design load in view ofcompliance to a priori defined target ice conditions. This a priori definition can easily result in damages tothe structure, because the current rules and regulations do not present means for operational guidance as aresult of liability issues of the regulator. Consequently, the operational aspect is of high importance,especially for non-ice classed ships, which may be exposed to ice loads if required by the operation.Therefore, this project will i) identify the influence of the spatial and temporal variation in the ice loadingon the structural design and ii) identify a first principle-based design ice load approach suitable foroperational guidance for ice classed and none-ice classed ships. Both points will consider single andmultiple impacts with free floating and constraint ice masses at various speeds. In order to identify thesepoints, the following objectives will be reached: a) experimental investigations of ice impact against shipstructures of different stiffness and b) development of a semi-analytical impact model for ship interactionwith ice.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 27, 2018
- Source ID
- N629091812127
Entities
People
- Soeren Ehlers
Organizations
- Office of Naval Research
- United States Navy