Farzad Tahmasebi

MSc of mechanical engineering, Port and Maritime Organization (PMO), Tehran, Iran
Author    Correspondence author
International Journal of Aquaculture, 2026, Vol. 16, No. 2   
Received: 20 Jan., 2026    Accepted: 27 Feb., 2026    Published: 15 Mar., 2026

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This study evaluates the structural strength of the forecastle deck in the crane foundation area of a Multi-Cat vessel using the finite element method. A three-dimensional finite element model was established to simulate the deck structure under crane operating loads. The analysis considered the most critical lifting condition and included eight crane rotation angles. Stress results were assessed according to the allowable stress requirements of the ABS Rules for Building and Classing Steel Vessels under 90 Meters. The results show that the maximum Von Mises stress occurs at a rotation angle of 180°, with a value of 160.4 MPa, which is lower than the allowable limit of 165 MPa. Therefore, the deck structure in the crane foundation region satisfies the strength requirement under the examined operating conditions. The study confirms that finite element analysis is an effective tool for verifying the structural safety of crane-supported deck structures.

FEM; Crane; Forecastle; Deck; ABAQUS; Foundation