Noise-Reducing Ship Propeller Design

Propellers, as the core of ship propulsion systems, significantly impact vessel speed, fuel efficiency, and overall performance. Achieving a balance between hydrodynamic efficiency, cavitation reduction, and noise minimization remains a significant challenge in traditional propeller design. These methods often focus on optimizing individual performance parameters while neglecting the interplay between them, resulting in suboptimal outcomes. This paper introduces a novel multi-objective integrated design theory for propellers, aiming to overcome these limitations. Leveraging advanced computational fluid dynamics (CFD) and optimization algorithms, this methodology simultaneously optimizes hydrodynamic performance, cavitation resistance, and noise reduction characteristics. The paper explores various noise suppression techniques, emphasizing the importance of blade shape optimization, surface treatments, and cavitation control strategies. Additionally, it highlights the role of material selection and structural optimization in achieving noise reduction goals. By adopting this integrated design, the paper aims to optimize propeller performance, enhance fuel efficiency, reduce noise emissions, and promote sustainable maritime transportation.