Design of vibration mode shape for composite piezoelectric material by using local anisotropy

利用局部各向异性设计复合压电材料振动模态振型

• 批准号: 22760164
• 负责人: HONDA Shinya
• 金额: $ 2.58万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760164/
• 关键词: 複合材料; 振動制御; 最適設計; 異方性構造; 繊維強化複合材料; 振動モード; 曲線状繊維; スマート構造; 圧電素子; 複合材料; 振動制御; 最適設計; 異方性構造; 繊維強化複合材料; 振動モード; 曲線状繊維; スマート構造; 圧電素子

The present study generated a new function of carbon fiber reinforced laminated materials, known as advanced composite materials with high specific stiffness and strength. New structures of composite materials with curvilinear reinforcement fibers and variable-thicknesses were proposed in this study, and this structure realized local anisotropy in different positions of structures. Optimum placements of local anisotropy induced by optimum curvilinear fiber shape and distributed thickness resulted in controlling shapes of vibration mode arbitrary. The technique was applied to design optimum smart composite structures to enhance the performances of vibration suppression. From above, it is concluded that the present technique enables effective usage or suppression of vibration by considering the shape of vibration mode.

本研究产生了碳纤维增强层压材料的新功能，称为具有高特异性和强度的高级复合材料。在这项研究中提出了具有曲线钢筋纤维和可变厚度的复合材料的新结构，并且该结构在结构的不同位置实现了局部各向异性。最佳曲线纤维形状和分布式厚度引起的局部各向异性的最佳放置导致控制振动模式的形状。该技术用于设计最佳的智能复合结构，以增强振动抑制的性能。从上方可以得出结论，目前的技术可以通过考虑振动模式的形状来有效使用或抑制振动。