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Structures into the water impact problem is widespread in the shipbuilding industry and marine engineering , has 70 years of history into the water impact study for the importance of the structural design . Ship sailing in the waves , the bow , the stern will frequently occur with the surface of the water impact, caused a lot of instant pressure on the structure , this force can cause serious damage in the hull and marine structures . Therefore , the study of marine structures into the water slamming their characteristics has a very important practical significance to determine the ship 's design load and ensure that the ship security . The purpose of this paper is the use of ANSYS / LS-DYNA explicit finite element nonlinear dynamic analysis software , into the water for the simulation of the two-dimensional profile type commonly used in engineering hull structure , in order to analyze these structures in the process of entering the water slamming load and its characteristics , as well as the structure of the response to the law , include the following : 1, by the previous studies , learned at home and abroad into the water on the marine structures problem profiles . And slamming theoretical digestion , absorption , and finishing , the basic theory of the two - dimensional flat-bottomed structure into the water and two-dimensional wedge structure ; 2 , the use of simulation methods for two - dimensional flat-bottomed structure into the water impact analysis , analysis has been pressure on the slamming rigid flat structure into the water and its distribution , and into the water speed and the structural quality of slamming pressure ; based on further analysis of the elastic effect ( slamming pressure and structural response of the flat bottom surface of thickness t, the modulus of elasticity E and D) on the bending stiffness of the elastic flat structure into water ; 3, using simulation method of the two - dimensional wedge the U - shaped body and the bulbous bow structure into the water . Were given three different structural types slamming the pressure on its distribution , elevated pressure wave cloud images and the liquid level of the flow field Figure wedge into the water angle of slamming pressure peak , and the U-shaped the body on the bottom surface the slamming load variation with flat structure contrast , some meaningful conclusions .
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