Effect of material on hydro-elastic behaviour of marine propeller by using BEM-FEM hybrid software
This paper studies the effect of material on the hydro-elastic behaviour. The geometry of ﬂexible propeller changes due to hydrodynamic and inertial forces acting on the propeller. By using prepared software (called HYDRO-BEM and ELASTIC-FEM) the hydro-elastic features of the propeller made of various materials are analyzed. In the software the hybrid boundary element and ﬁnite element methods are used. First, the load acting on the propeller is determined by using the BEM and deformed propeller geometry is then obtained by the FEM. In the next step, the load on the deformed propeller is determined by the BEM and a new shape is obtained. The iterative procedure is repeated till the blade deﬂection and hydrodynamic characteristics (thrust, torque and efﬁciency) of the propeller become converged. Four different materials are examined. It is concluded that the hydro-elastic behaviour of the composite propeller is strongly affected by its ﬂexibility due to light material
- Department of Ocean Engineering, Amirkabir University of Technology, Teheran, Iran
- Marine Industry Research Centre, Amirkabir University of Technology, Teheran, Iran
- Vehicle Technology Research Institute, Amirkabir University of Technology, Teheran, Iran
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