Topology Optimization of a Hanger for the Crane of a Boat

Abstract

Topology optimization is the process of optimizing the shape and material distribution of a part. This study examines the topology optimization of the hanging apparatus of a boat's crane. The goal here is to design a lighter and more efficient hanging apparatus. Initially, topology optimization was performed using a CAD software such as Autodesk Fusion 360. This software aids engineers in creating complex designs, simulating real-world scenarios, and optimizing material distribution. The design process began with the use of a non-equilateral triangle to determine the shape of the part. Later, two cylindrical rings that attach to the pole were added. These steps completed the initial geometry. Subsequently, it was indicated that the part needed to be light and resistant to weather conditions. Therefore, aluminum 6061 material was chosen. The material properties were chosen to ensure the proper functioning of the part. A static analysis was performed to determine the strength of the part. The forces and constraints applied to the part were simulated considering a one-ton capacity. A displacement of 1.32 millimeters and a safety factor of 6 were found. Then, following the topology optimization, an analysis of the new geometry resulted in a displacement of approximately 4 millimeters for the part. The predetermined minimum safety factor is 3, and the factor found in the analysis was 3.7. This is an acceptable value to ensure the structural integrity and safety of the part. The optimization process aimed to reduce the mass of the part. By preserving the initially determined safety factor, savings were made in the material and a successful reduction of approximately 42% in mass was achieved. This study demonstrates that topology optimization is a significant tool in engineering design and CAD software such as Autodesk Fusion 360 can be effectively used in this process. The analyses and optimizations conducted reveal that it's possible to design a lighter and more efficient hanging apparatus. This provides numerous advantages such as cost savings, performance increase, and reduction of environmental impact.