Development of a Topology Optimization Method Applied to Floating Plate-Type Structures Considering Hydroelastic Analysis

• Grant number: 24/17500-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: March 01, 2025
• End date: February 28, 2026
• Field of knowledge: Engineering - Naval and Oceanic Engineering - Marine and Ocean Structures
• Principal Investigator: Renato Picelli Sanches
• Grantee: Igor Barros Baraçal
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Company: Universidade de São Paulo (USP). Escola Politécnica (EP)
• Associated research grant: 20/15230-5 - Research Centre for Greenhouse Gas Innovation - RCG2I, AP.PCPE

Abstract

The conservative approach to structural design in Naval Architecture, while prioritizingsafety and reliability, often results in a high carbon footprint due to the excessive use ofmaterials and energy-intensive construction methods. This research aims to develop a novelapproach for designing lighter and more sustainable ship structures using topology optimiza-tion. Naval structures have core specifications that must be considered during optimization,such as hydroelastic loads and self-dependency issues. To address these, the Finite ElementMethod will be employed using COMSOL Multiphysics software to model floating structuresin a hydroelastic environment. COMSOL Multiphysics is a versatile tool that facilitates theapplication of additional boundary conditions, such as rigid motion suppression and mass-dependent drafts, which are essential for simulating floating structures. The Solid Isotropic Material with Penalization (SIMP) method will be utilized to address the problem of compliance minimization subject to volume and center of gravity constraints. Additionally, a 4-month research period abroad is planned, during which the candidate will test a 3D plate structure at Delft University of Technology. The results are expected to contribute significantly to scientific advancements in the field.