When and where
Thursday 20 June 2019, 12:00 Sala Consiglio, INM Headquarters Rome
Abstract
Ships and offshore platforms are designed to perform well in typical sea conditions, but they must also survive the most extreme conditions that will be encountered during the their lifetime. The analysis of the largest wave loads is challenging because of the random nature of the sea environment and the highly nonlinear nature of wave-structure interaction in the most extreme cases. While high-fidelity computational tools hold the promise to accurately predict the response of a ship or a platform in the worst seas conditions, they are too computationally expensive to simulate the random environment for sufficient time to find the rarest and largest response. The focus of this talk is to present a method for prescribing the waves that lead to the largest response that are amenable to simulation with a state-of-the-art computational fluid-dynamics solver. The talk will present results of extreme wave-load distribution on a fixed ocean platform and for the extreme roll distribution for the ONR Tumblehome hull form.
Biography
Kevin J. Maki is an Associate Professor in the Department of Naval Architecture and Marine Engineering (NA&ME) at the University of Michigan, Ann Arbor. He received his Ph.D. from the NA&ME Department in 2006, and earned two MSE degrees in Aerospace Engineering (2004) and NA&ME (2002). His research areas are in numerical free-surface hydrodynamics and high-Reynolds number external flows. He was a Summer Faculty Fellow in 2007 and 2009 at the Naval Surface Warfare Center Carderock Division, supported by the Office of Naval Research. He has been a Visiting Professor at the Italian Ship Model Basin. He has worked as an independent consultant in marine engineering on projects related to high-performance naval vessels, hydrokinetic energy extraction, and high-performance sailing-yacht design. His research is sponsored by the Office of Naval Research, Ford Motor Company, NAVSEA, and the American Bureau of Shipping. He teaches courses on numerical hydrodynamics, ship dynamics, and the design of sailing yachts and high-speed craft.