Optimization and Simulation of Energy Absorption in Composite Propeller Under High Speed Impact

This research investigates the resistance of composite propellers to High-speed impact. Carbon, Kevlar, and glass fibers were used as the outer shell of the propeller, while polyurethane foam was utilized as the core. The aim of this study was to evaluate the performance of these materials in energy absorption during impact and to optimize the resistance of the propeller under various conditions. For this purpose, six different fiber lay-up combinations were analyzed. The propeller design was obtained by scanning the original propeller sample, allowing for more accurate simulation and analysis using the finite element method (FEM). In the simulation, the residual velocity of the propeller after impact with a rod under controlled conditions was measured, and the data obtained were analyzed to compare energy absorption in ۱۸ different cases. The results showed that propellers with Kevlar fibers as the outer shell and a ±۴۵-degree lay-up demonstrated the best performance in terms of energy absorption. In this case, the propeller's speed after impact was reduced by approximately ۸%, indicating the high efficiency of Kevlar in enhancing the impact resistance of composite propellers. These findings could contribute to the improvement of design and production of composite propellers with higher resistance and performance in various industries, especially in the aerospace sector. Additionally, the results of this research offer insights into optimizing the structure of composite propellers under impact and loading conditions.

کلیدواژه ها:

Composite propeller ، Energy absorption ، Impact ، Polyurethane core ، Mechanical Properties