A computational iterative design method for bend-twist deformation in composite ship propeller blades for thrusters

Abstract This study investigates the feasibility of utilising common composite material layup techniques in ship propeller blade design to achieve an automatic pitch adjustment through bending-induced twist deformation. A comprehensive approach, including various reinforcement materials and arrangements, was employed attain desired foil pitching, while minimising other undesirable deformation modes. The process involved iterative computational analysis using finite element a mode based on shape parameters. research showed that proposed approach effectively found options improve parameter pitch, modes such as deflection change. Furthermore, tested thruster steering operational conditions have change well matched, potentially countering some changes fluid flow. When compared Kumar Wurm’s design, which only focused angular orientation glass reinforcement, outperform twisting by achieving same for half length. provides valuable insights into utilisation highlights potential further improvement engineering approach.