期刊
MARINE STRUCTURES
卷 23, 期 1, 页码 22-38出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marstruc.2009.10.002
关键词
Marine propellers; Composite; Hydro-elastic; Optimization; Strength analysis
资金
- European Union [TNE3-CT-2003-506141]
The present paper addresses the design and optimization of a flexible composite marine propeller. The aim is to tailor the laminate to control the deformed shape of the blade and consequently the developed thrust. The development of a hydro-elastic model is presented, and the laminate lay-up which minimizes the fuel consumption for the cruising and maximum speed conditions is simultaneously determined. Results show a reduction of 1.25% in fuel consumption for the combined case corresponding to a decrease of 4.7% in the cruising speed condition. Finally, the strength of the optimal blade is analyzed using the Tsai-Wu strength index. After local tailoring of the laminate configuration throughout the propeller a maximum value of 0.7 is determined indicating no failure will occur under normal operation conditions. The results suggest that it is possible to design a medium-sized flexible composite marine propeller that will enable a reduction of the fuel consumption while withstanding the imposed loads (C) 2009 Elsevier Ltd. All rights reserved.
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