توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱2D Simulation of a Free–Floating Body Motions under Linear Waves Using a Smoothed Particle Hydrodynamics scheme
اطلاعات انتشار: دهمین کنگره بین المللی مهندسی عمران، سال
تعداد صفحات: ۷
In this study, a modified weakly compressible smoothed particle hydrodynamics (WCSPH) scheme is used for simulating the rigid motions of a freely floating body with 3 degrees of freedom (heave, sway, and roll). In the modified WCSPH scheme, a new equation for simulation of wave–structure interaction and calculating hydrodynamic forces is used. To evaluate the efficiency of the new proposed scheme, a numerical wave flume with a flap–type wave maker has been simulated and the results are compared with the experimental data. The results obtained from the new SPH scheme reveal that the proposed scheme is more accurate and reliable than the classic SPH scheme in estimation of the rigid body motions.<\div>

۲EXPERIMENTAL STUDY OF THE SPLITTER PLATE’S EFFECT ONTHE TWO–DEGREE–OF–FREEDOM VORTEX INDUCED VIBRATIONOF CIRCULAR CYLINDER IN WAVES
اطلاعات انتشار: یازدهمین همایش بین المللی سواحل، بنادر و سازه های دریایی، سال
تعداد صفحات: ۴
Nowadays, due to the development of offshore industries in hydrocarbon resources, thepipelines and risers have gained more attention.<\div>

۳Analyzing jack–up leg’s behavior during punch–through in jacking condition
اطلاعات انتشار: چهارمین همایش بین المللی صنایع فراساحل، سال
تعداد صفحات: ۷
Failure in self–elevated jack–up units may happen during jacking operation under sever sea state conditions or may happen due to punch trough during the jacking operation. During installation and pre–loading procedure of jack–up units, the potential of unexpected punch through failure exists. This occurs when the spudcan pushes a locally strong zone of soil into underlying softer material which leads to rapid downward movement of related leg and consequently leading to the buckling or collapse of other legs. Therefore, the investigation of punch through in jack–up units during jacking operation is important. During jacking operation, the connection of legs to the hull is provided through the pinion which is different from the fixed form, so the proper modeling of its behavior is essential. In this paper, the punch through behavior of a typical jack–up unit during jacking operation is modeled by finite element software under different conditions. The results are compared and most critical conditions and their related critical points are investigated<\div>
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