Hydroelastic analysis of VLFS integrated with multiple porous vertical barriers

Abstract

The hydroelastic response of Very Large Floating Structures (VLFS) integrated with multiple porous vertical barriers of finite width is analyzed using small amplitude wave theory. The integrated system consists of a floating VLFS and porous barriers of finite-thickness designed to mitigate wave-induced structural effects. A coupled Multi-Domain Boundary Element Method (MDBEM) and Finite Difference Method (FDM) is employed, with MDBEM considered to model the fluid domain and barriers of finite thickness, while FDM is used to numerically model the VLFS. Numerical validation performed in the study confirms the accuracy of the results with the existing literature. The findings indicate that porous barriers effectively absorb wave impact, thereby reducing the forces exerted on the VLFS and minimizing the hydroelastic response, which enhances structural integrity and safety. The study also examines the influence of hydroelastic responses due to variation in barrier porosity, orientation, and placement of porous barriers. The study provides valuable insights which will be significant for optimizing VLFS design and improving resilience in maritime environments. © 2025 Informa UK Limited, trading as Taylor & Francis Group.