1. SuRi refit

    03:58

    from SuRi / Added

    1,919 Plays / / 0 Comments

    Produced by Michael Gregory

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    • Local Righting Energy

      00:15

      from will krzymowski / Added

      200 Plays / / 0 Comments

      (moments of areas @ 30 section stations) Schooner Precedent #1 & New Schooner Model #4g 0-90 degrees of heel

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      • Large-Scale Wind/Marine Turbines: State-of-the-Art & Current Challenges

        01:17:51

        from ISR at UMD / Added

        132 Plays / / 0 Comments

        Yin Lu (Julie) Young Associate Professor Naval Architecture and Marine Engineering University of Michigan Ann Arbor, Mich. Host Armand Makowski Abstract Global climate change and depletion of fossil fuels both suggest an urgent need for clean, renewable energy. Currently, wind energy is more cost-effective than ocean energy due to active research and development over the last fifty years, but we are only beginning to explore ocean energy resources. This presentation will begin by introducing the various forms of ocean energy conversion systems with emphasis on marine turbines, which could be used to extract energy from tides, river currents, and ocean currents. The physics governing wind and marine turbines are similar. They both extract energy from the surrounding flow, and they both can be analyzed under incompressible flow assumptions. In addition, both hydrodynamic and structural dynamics need to be carefully considered in the design and analysis of wind and marine turbines. In this seminar, we will present a fully coupled, 3-D, transient fluid-structure interaction simulation method for analysis and design of large-scale marine turbines with consideration for spatially varying flow, fluid cavitation, structural stresses and deformations. Although the focus is on marine turbines, the method is also applicable for wind turbines. We will also discuss current state-of-the-art concepts, including the use of bend-twist coupling to enhance energy capture, delay cavitation inception, and extend the fatigue life of marine turbines. Finally, we will discuss current design challenges, including scaling issues, hydroelastic instabilities, power control issues, and system reliability. Biography Dr. Young is an Associate Professor at the Department of Naval Architecture and Marine Engineering at the University of Michigan. Prior to joining Michigan, she was an Assistant Professor at the Department of Civil and Environmental Engineering at Princeton University. Prof. Young received her Ph.D. from the University of Texas at Austin in 2002. She is the recipient of the ONR Young Investigator Award and the Princeton University Rheinstein SEAS Junior Faculty Award in 2005. She also received the UPS Visiting Professorship from Stanford University in 2008, and was appointed as a Senior ONR-ASEE Faculty Fellow at Naval Surface Warfare Center, Carderock Division in 2009. Prof. Young has written over a hundred journal and conference papers in the area of fluid-structure interactions related to marine and coastal structures. She is also currently the Society of Naval Architecture and Marine Engineering (SNAME) representative on the United States National Committee on Theoretical and Applied Mechanics (USNC/TAM).

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        • Prepared for the oceans - Maritime educations at Chalmers

          07:44

          from Chalmers Univ. of Technology / Added

          3,716 Plays / / 0 Comments

          Chalmers University of Technology provides the shipping industry with well-educated, trained personnel for all positions. With a degree from Chalmers, our students will become a great asset to their employers from the onset.

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          • Domestic & Foreign Policy Pressures on America's Global Leadership

            56:31

            from Webb Institute / Added

            2 Plays / / 0 Comments

            Dr. Mark Meirowitz delivers his lecture on the current policies that are affecting America and it's citizens.

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            • Lazzara Yachts Design

              02:46

              from Troy Raszka / Added

              48 Plays / / 0 Comments

              Art Director, Producer, Writer - Troy Raszka for Lazzara Yachts with Lazzara archival images and photography by David Monroe & Scott Pearson. Video Production and Editing by Tampa Digital Studios Director - Peter Guzzo Director of Photography - Erik Curtis Spokesperson - Christy Colley-Ronchetti

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              • Special feature - Rolling test

                00:33

                from Falletta Calogero / Added

                168 Plays / / 0 Comments

                Special test of Rolling behaviour is normally carried out to optimize hull appendages, and increase hull platform stability.

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                • William H. Webb & Webb Institute

                  58:51

                  from Webb Institute / Added

                  67 Plays / / 0 Comments

                  Richard Harris's lecture about William H. Webb and the creation of Webb Institute. Lecture was for the Nassau County Historical Society and took place on January 29, 2012 at Webb Institute.

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                  • FEM Analisys

                    00:52

                    from Falletta Calogero / Added

                    218 Plays / / 0 Comments

                    FEM analysis is widely used in structure optimization to ensure the highest stiffning and strengthening and avoid undesired vibration. CFD is widely used in hull fairing and appendages optimization.

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                    • Local Righting Energy

                      00:37

                      from will krzymowski / Added

                      142 Plays / / 0 Comments

                      A technique pioneered by the SALTS design team in analysing the righting energy.

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