Fluid-Structure Interactions during Water Impact
Abstract
Dynamic loading conditions, such as hull slamming, impact, and persistent vibrations, are encountered in the normal life cycle of a marine vessel. Developing physically-based modeling tools and scientifically-principled experimental methods to study fluid-structure interactions elicited by dynamic loading is essential for the design of safe and high-performance marine composites. While several breakthroughs have been recently put forward for the study of fluidstructure interactions, a large number of technical questions remains wide open from modeling to experiments. Our understanding of fluid-structure interactions is often limited to case studies, thereby lacking an overarching theoretical basis that supports predictive analysis and system design. Just as models are tailored to specific settings, so experimental schemes suffer from a limited standardization that challenges our ability to pinpoint the key physical factors underlying the dynamic response of marine composites. A particularly open area of research is being created by global warming, which is changing the polar landscape and posing new scientific challenges on the mechanics of marine vessels in arctic environments. Within this domain, a pressing area of study entails ice-induced loading, which plays a central role on ship hulls during sailing and seakeeping. This focused, one-year, effort seeks to contribute to three important areas of research: -First, we will lay the foundations for laboratory studies on ice loading during water entry. -Second, we will continue the fruitful collaboration with the group of Dr. Valentina Lopresto from the University of Naples Federico II, Italy, on low-velocity impact of water-backed panels. -Finally, we will extend our theory of hydroelastic impact to tackle the Navy-relevant problem of impulsive loading of air-backed marine panels from water impact.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 26, 2018
- Source ID
- N000141812218
Entities
People
- Maurizio Porfiri
Organizations
- New York University
- Office of Naval Research
- United States Navy