Abstract
Rigid-hulled inflatable boats are extremely practical and popular nowadays, offering an effective conciliation among usability and costs. Their stable and seaworthy behavior is guaranteed by performing hydroplaning hulls coupled with unsinkable inflated tubes. At the same time, their design is often based on tradition and preconceptions. In this article, both numerical methods and experimental mechanics techniques are proposed as an essential way for supporting the designers in decisive tasks. Three different situations are detailed where a numerical or an experimental approach shows its benefit inside the engineering design process: firstly, permitting investigation of the behavior of materials driving the fiberglass selection; then measuring the levels of stress and strain in the hull during sailing; and finally, using information as a base for developing numerical models of the hull slamming in waves. Even if the discussion is focused on a rigid inflatable boat, a large part of these considerations is relevant beyond this particular case.
Highlights
A rigid-hulled inflatable boat or, in a simpler way, a rigid inflatable boat (RIB), represents a very popular segment of light crafts, offering high performance and additional practical advantages [1].These crafts demonstrate stability in navigation thanks to specific design solutions pairing a solid and resistant hull with flexible tubes at the gunwale [2]
Smoothed-particle hydrodynamics (SPH) numerical simulations combined with FEM with the scope to investigate the effect of waves motion and impact on ship structures
This study presents an and the computational critical aspects.(FE)
Summary
A rigid-hulled inflatable boat or, in a simpler way, a rigid inflatable boat (RIB), represents a very popular segment of light crafts, offering high performance and additional practical advantages [1].These crafts demonstrate stability in navigation thanks to specific design solutions pairing a solid and resistant hull with flexible tubes at the gunwale [2]. RIBs represent a valid sailing solution to an extremely wide range of utilization, able to include special applications such as rescue craft, safety boats for sailing and tenders at the service of larger boats and ships [4]. Their shallow draught, high maneuverability, speed [2,3], and relative resistance to damage in low-speed collisions [4] are specific advantages offered by these vehicles thanks to specific design solutions and materials
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