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One-Way Coupled Hydroelastic Analysis Of Aluminum Wedge Under Slamming, Mallikarjun Kalluru
One-Way Coupled Hydroelastic Analysis Of Aluminum Wedge Under Slamming, Mallikarjun Kalluru
University of New Orleans Theses and Dissertations
The concept of using aluminum as the primary construction material for high speed ships and the hydroelastic behavior of the structure is widely gaining importance as a significant research topic in naval architecture. Aluminum is lighter than steel and hence can be predominantly used in high speed crafts which experiences significant slamming. This thesis work is focused on wedge shaped models. Free fall wedge impact is studied and a FORTRAN 90 computer program is developed to estimate the structural response of the wedge experiencing slamming by the use of matrix methods, finite element techniques and Newmark-Beta numerical time integration methods. …
An Experimental Study In The Hydroelastic Response Of An Aluminum Wedge In Drop Tests, Jonathan R. Eastridge
An Experimental Study In The Hydroelastic Response Of An Aluminum Wedge In Drop Tests, Jonathan R. Eastridge
University of New Orleans Theses and Dissertations
Slamming of marine planing craft is expected to arise due to the high speed nature of their operating conditions. High hydrodynamic forces are inevitably induced causing the shell plating to deflect, which in turn can influence the flow physics surrounding the hull. In order to study the hull’s hydroelastic response due to a slamming event, wedge drop experiments were performed with an aluminum wedge of 57 inches in length, 47 inches in breadth, and 20 degree deadrise with 1/4 in. thick unstiffened bottom panels. The elastic behavior of the hull plating was measured via two methods. The first method uses …