کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8062203 1520629 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation on global responses of surface ship subjected to underwater explosion in waves
ترجمه فارسی عنوان
بررسی عددی در مورد پاسخ های جهانی کشتی های سطح تحت انفجار زیر آب در امواج
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
Transient fluid-structure interaction (FSI) has always been a challenging problem in ship mechanics. Underwater explosion and its highly nonlinear impact on nearby structures are more complicated. In this paper, the global responses of a surface ship subjected to an underwater explosion in waves are numerically investigated considering the nonlinear coupling between the fluid and structure solvers. The fluid field is modeled with the boundary element method (BEM), while the potential decomposition theory is adopted to take the surface waves into account. The global responses of the ship structure are modeled with the mode superposition method. Then a FSI model is established using the mode decomposition method of the acceleration potential to consider the interaction. An underwater explosion experiment is carried out to validate the numerical model, which shows good agreement between the numerical and experimental results. With the presented model, the interactions between a ship and an underwater explosion bubble both in still water and waves are simulated. The dynamics of the ship global responses and the influence of the waves are analyzed which shows noteworthy nonlinearity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 161, 1 August 2018, Pages 277-290
نویسندگان
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