遠心力を受ける逆対称積層動翼のねじりに及ぼす予ねじり角度の影響

概要

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In order to establish some basic concepts on the development and design of smart blades of FRP, the influence of the pre-twist angle and the stacking sequence on the twist of anti-symmetric laminate blades under centrifugal force was analyzed by FEM (Finite Element Method). It was found that the twist direction of a blade depends only on the anti-symmetric stacking sequence and that the twist angle depends on the pre-twist. Two stacking sequences were investigated. It was shown that, for different sequences, to twist-backward is easy however to forward-twist is hard as the pre-twist angle increases. Furthermore, it was demonstrated that the twist angle of blade depends more on the coupling of the stacking sequence than it does on the pre-twist.
社団法人日本機械学会の論文
2005-06-25