ABSTRACT
The attenuation of the incident wave interacting with a very large floating structure (VLFS) in the presence of vertical barriers is analysed considering small amplitude wave theory. The VLFS is considered to be articulated and is modelled based on Timoshenko-Mindlin plate theory. The eigenfunction expansion method along with the orthogonal mode-coupling relation is employed for the case of finite water depth. The numerical study is performed to analyse the wave reflection, transmission and dissipation characteristics due to the articulated floating plate for the case of bottom standing and surface piercing vertical porous barriers. The hydroelastic behaviour in terms of deflection and strain for an articulated floating thick elastic plate in the presence of porous barriers is analysed. The study reveals that the magnitude of wave attenuation is enhanced due to the presence of vertical porous barriers and also provides an understanding in mitigating the structural response.
Acknowledgements
The authors are thankful to the National Institute of Technology Karnataka (NITK) Surathkal and Ministry of Education, Government of India for providing financial and necessary support to perform the research work. DK acknowledges the partial support from Science and Engineering Research Board (SERB), India through research grant CRG/2018/004184.
Disclosure statement
No potential conflict of interest was reported by the author(s).