二層複合円板における熱変化のステップ状印加電位による抑制

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  • Control of Thermoelastic Displacement in a Two-Layered Composite Disk by Applying Stepwise Electric Potentials
  • 2ソウ フクゴウ エンバン ニ オケル ネツ ヘンイ ノ ステップジョウ インカ デンイ ニ ヨル ヨクセイ

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This paper discusses a displacement control problem in a two-layered composite disk consisting of a transversely isotropic structural layer onto which a piezoceramic layer of crystal class 6 mm is perfectly bonded. It is considered that some electrodes are concentrically arranged on the top surface of the disk. When an axisymmetric heating temperature acts on the bottom surface of the disk, the thermally induced displacement distribution on the bottom surface is controlled by applying a stepwise electric potential distribution to the top surface. The voltage which could be applied to each electrode is determined by optimization so that the displacement over the bottom surface of the disk has a desired distribution.

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