形状記憶合金繊維を内蔵した対称CFRP積層板の振動特性と最適化

概要

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In the present paper is examined the vibration characteristics and optimization of rectangular symmetric CFRP laminates containing embedded shape memory alloy (SMA) fibers. The recovery stress due to the shape memory effect of the SMA fibers and the concurrent mechanical property change are taken into consideration in the vibration analysis of the laminates when the embedded SMA fibers are activated. With the use of two in-plane and four out-of-plane lamination parameters, the fundamental frequencies of the activated laminates are discussed for the case that the laminates are simply supported at four edges, while the fundamental frequencies of the inactivated laminates are discussed with the use of four out-of-plane lamination parameters. Finally, the vibrational optimization problems of the CFRP laminates with embedded SMA fibers are examined by using a mathematical programming method in which the lamination parameters are used as design variables. The laminate configurations to realize the determined six lamination parameters are also discussed.
一般社団法人日本機械学会の論文
2002-04-25