Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Structural analysis of maritime fenders.
Submission Author:
Yuri Fernandes , MA , Brazil
Co-Authors:
Yuri Fernandes, Vilson Souza Pereira, Dalmo Inacio Galdêz Costa
Presenter: Yuri Fernandes
doi://10.26678/ABCM.COBEM2023.COB2023-1239
Abstract
Fender systems are essential structural elements responsible for protecting the berth during docking maneuvers for vessels, with the main objective of absorbing impact energy during berthing, during mooring and in possible maneuvers for repositioning ships at the pier. In this sense, maritime fender has proven to be an important tool to protect structures and prevent material and human damage during the mooring of ships. These structural elements are designed to dissipate the kinetic energy of vessels, minimizing damage caused by collisions and helping to maintain the integrity of ships and port structures. The structural design of fenders and their subsequent analysis consider a series of factors, part of them related to maritime dynamics and the location of the berth, such as winds, currents, waves, tidal variations, and others variables related to port operations, such as size of vessels, speed, and types of ship approach. In this work the main goal is to study the fender system used in one of the berths of Itaqui Port, with the purpose of establishing an analysis of applied loads and strength of these important structural elements. In order to that, some local conditions of the port were taken into consideration, such as: tidal variation, types of vessels, their arrival frequencies and port berthing practices. All of those data was used do compute the kinetic energy of the ship that the fender needs to dissipate which allows to select a specific fender model. To generate the computational model, information gathered from data made available by engineering and maintenance areas of the Itaqui Port were used. The rubber element in the fender is responsible for dissipating the kinetic energy so will be the focus of this structural analysis. Its non linear hyper elastic behavior is described using the two parameter Mooney-Rivlin model. An structural analysis of displacements and stresses using the finite element method of a cylindrical fender considering a pure compressive state was performed and results discussed.
Keywords
fender, ship, pier, Mooring, energy
