Effect of Containership Bulkhead Numbers and Thickness on Hydrodynamic Pressure Using Boundary Element Method

Abstract

This study employs the Boundary Element Method (BEM) to analyze the impact of bulkhead number and plating thickness on hydrodynamic pressure distribution across a vessel's hull. The objective is to quantify and visualize the effects of structural variations on pressure dynamics. BEM simulations revealed that vessels with 20 bulkheads and 25mm plating exhibit localized pressure concentrations reaching 180 N/mm², indicating high rigidity. Conversely, vessels with 10 bulkheads and 20mm plating show a more uniform distribution with critical pressures around 160 N/mm², suggesting increased flexibility. Configurations with 5 bulkheads and 25mm plating also displayed pressures near 180 N/mm², but with a more dispersed pattern. The BEM analysis showcased the compartmentalization of pressure, with increased bulkheads creating distinct pressure zones. These findings highlight a critical trade-off between rigidity and flexibility. Vessels with higher bulkhead counts and thicker plating sustain greater localized pressures, while those with fewer bulkheads distribute pressure more evenly. The BEM effectively mapped pressure gradients, providing crucial insights for structural design and cargo management, ultimately enhancing vessel safety.