ニッケル基単結晶および一方向凝固超合金平板の振動解析

概要

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This study investigates the free vibration mode for Ni-base single crystal and directionally solidified (DS) superalloy cantilever plates using three-dimensional finite element analyses. The elastic anisotropy had significant effect on the eigenfrequency and eigenmode of plates. The rotation of the crystal axis around the [001] axis had a smaller effect at low frequencies but had a significant effect at high frequencies. The deviation of the crystal axis in the plate had a significant effect on the eigenfrequency at low frequencies as well as high frequencies. The bulk elastic modulus of DS plates derived by means of the Reuss average was effective to estimate the eigenfrequencies of DS plates. Eigenfrequencies of DS plates could also be predicted by averaging the eigenfrequencies of single crystals which comprise DS plates.
一般社団法人日本機械学会の論文
1993-05-25