Design Analysis and Optimization of Parallel Motion Fender

Abstract

In this study collision analysis for the parallel motion fender system that designed to protection of collision
between vessel and port was performed for the ABT 3200DWT GENARAL CARGO ship size, the impact forces and the
impact energies were estimated by berthing energy calculations. Ship fenders often take large impact during berthing.
This study presents a design and analysis of current parallel motion fender system and modified parallel motion fender
system. In optimization maximum fatigue life, minimum shear stresses and min von -mises stresses are set as three
objectives and the diameter of torque arm pin, torque arm pin distance and distance between two brackets are selected
as three design variables. Non-linear FE analysis is first carried out to capture the impact response of force. Afterwards
parametric studies are performed to investigate the influence of different variables on the design objectives. A taguchi
method is used for design of experiments. ANSYS14.1 workbench is used for analysis. The optimum set is defined as the
solution with the maximum fatigue life.