Numerical Analysis of Slamming Models for the Design of Advanced Naval Vessels
Abstract
The operation of naval vessels in the ocean environment subjects the platform to a wide range of loading conditions on the vessel structure. The occurrence of slamming has been investigated and considered for decades, leading to more understanding of the underlying physical processes, and most importantly producing better designs. Most of the profitablepast work has been done on canonical problems, and overwhelmingly the majority of the studies focus on entry only. The main theme of the proposed work is to use a highfidelity computational-mechanics method, together with theoretical analysis, to explore and uncover fundamental physical processes that dominate slamming (both entry and exit) phenomena for naval vessels. The proposed work is part of a combined theoretical and numerical approach, and isorganized in a collaborative manner with Prof. Alexander Korobkin from the University of East Anglia, The United Kingdom. Specifically, the theoretical work will providevalidation problems for the computational-mechanics (FSI) solver. Furthermore, the FSI solver will provide full field information that will be used to drive the development of improved force models. The numerical aspects will employ a state-of-the-art computational mechanics solver that has been developed by the PI. The coupled fluid-structure is handled by a novelalgorithm that allows for solution on domains that move in time where the fluid mass is of the same order of magnitude as the structural mass, and the flow has a dynamic airwater interface. Key aspects of the work will focus on the role of realistic sea conditionsand real ship geometry on the accuracy of the theoretical force models. The outcomes of the work will include deeper understanding of the physical processesthat govern slamming phenomena. The work will generate new models for quantities such as the force, pressure, and free-surface evolution. The new models will be accurate and easy to use, and allow designers to analyze and generate superior designs. Theoutcomes of the proposed work will benefit naval ship structural design, and planing craft maneuvering simulation technology. Furthermore, the understanding of slamming phenomena is also relevant for understanding the operation of ships and submarines inthe arctic environment. The interaction of the ship structure and ice is related to slamming. Finally, the research will benefit the commercial and defense aircraftindustries with respect to the problem of aircraft ditching.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 30, 2016
- Source ID
- N000141612969
Entities
People
- Kevin J. Maki
Organizations
- Board of Regents of the University of Michigan
- Office of Naval Research
- United States Navy