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Publicações
Guedes Soares, C. (1987), “Transient Response of Ship Hulls to Wave Impact”, Proceedings of the 4th National Congress on Theoretical and Applied Mechanics, 14-17 Dezembro, Coimbra, Vol. 3.26, pp. 1-19
In heavy seas ships are subjected to the impact of waves on the bottom and forward sections. These loads induce a transient vibratory response of the ship hull which behaves like a free-free beam interacting with the water. The relativemotion between the ship and waves is determinated from the rate of change of momentum of the fluid. The hydrodynamic coefficients are calculated with two dimensional singularity functions. The vibratory response of the ship hull is calculated by modelling it with two dimensional Timoshenko beam finite elements with a consistent mass formulation, which is used to determine the mode shapes and natural frequencies. The response is obtained by modal superposition and each modal response is obtained using a Newmark integration scheme. Results are presented of example calculations on a cargo ship.
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