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Hydroelastic Response of VLFS with An Attached submerged horizontal solid/porous plate Under Wave Action

China Ocean Engineering 2020年第4期34卷 451-462页

作者： FENG Ming-wei SUN Zhao-chen LIANG Shu-xiu LIU Bi-jin State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China School of Civil Engineering and Architecture Xiamen University of TechnologyXiamen 361024China

The hydroelastic responses of a submerged horizontal solid/porous plate attached at the front of a very large rectangular floating structure(VLFS)under wave action has been investigated in the context of linear water wave ***’s law is adopted to represent energy dissipation in *** is assumed that the porous plates are made of material with very fine pores so that the normal velocity across the perforated porous is linearly associated with the pressure *** the analytic method,the eigenfunction expansion-matching method(EEMM)for multiple domains is applied to solve the hydrodynamic problem and the elastic equation of motion is solved by the modal expansion *** performance of the proposed submerged horizontal solid/porous plate can be significantly enhanced by selecting optimal design parameters,such as plate length,horizontal position,submerged depth and *** is concluded that good damping effect can be achieved through installation of solid and porous *** plate has better damping effect at low frequencies,while solid plate has better damping effect at high *** optimal ratio of plate length to water depth is 0.25-0.375,and the optimal ratio of submerged depth to water depth is 0.09-0.181.

关键词： VLFS hydroelastic response Darcy’s law eigenfunction expansion-matching method submerged horizontal solid/porous plate

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