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Publications
Liu, B., Wang, S., Villavicencio, R. and Guedes Soares, C. (2020), “Slamming load and hydroelastic structural response of bow flare areas of aluminium fast displacement crafts”, Ocean Engineering, Vol. 218, 108207 (11 pages)
The paper evaluates the response of an aluminium stiffened panel of a fast displacement craft under bow flare slamming loads by using three finite element methods: (1) a linear static analysis to calculate the structural elastic deformation and stress under the design load; (2) an independent analysis of the slamming load and the elastic structural response (a two-way decoupled method); (3) a method that couples their interaction (a fully coupled method). In the two-way decoupled method, the slamming load is evaluated for a two-dimensional rigid bow-flared section, while the dynamic structural deformation and stress response are assessed by linear elastic analysis. In the fully coupled method, the impact of a three-dimensional elastic structure onto a calm water surface is simulated numerically, where the structural deformation and hydrodynamic pressures are updated and evaluated at each time step. These methods are compared to analyse the hydroelastic effect when predicting the structural loading and response. The primary objective of the present work is to investigate the strength and safety of bow-flared structures when designing high-speed and fast displacement aluminium crafts subjected to slamming pressure loads. Comments on the shape of the bow-flared section when subjected to slamming pressures are also presented.
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