压电纤维复合材料铺层用于翼面设计的驱动特性与刚度影响
Drive Characteristics and Stiffness Influence with Piezoelectric Fiber Composite Actuators on Airfoil Surface
查看参考文献16篇
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文摘
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压电纤维复合材料驱动器在形状控制、振动控制、颤振抑制与抖振控制等方面有广泛的应用前景. 首先简单介绍了压电应变驱动的比拟载荷方法, 并采用该方法讨论了压电陶瓷片状驱动器与压电纤维复合材料驱动器在驱动特性上的主要差异. 在此基础上, 对压电纤维复合材料在不同铺设方式、铺设角度与铺设层数下的驱动特性进行了分析, 在刚度影响方面展示了不同铺设角度下模型刚轴的移动. 分析结果表明: 对称铺设反向电场可以同时获得弯曲与扭转变形, 而反对称铺设同向电场主要获得扭转变形; 两种铺设方式下45°铺设角均获得最大弦向转角, 而0°铺设角将获得最大挠度; 多铺层可以增加驱动载荷, 但总体变形效果还取决于结构系统的刚度比例; 对称铺设方式下铺设角对结构刚轴移动的影响非常明显, 在气动弹性控制中应着重关注. |
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其他语种文摘
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Piezoelectric fiber composite actuators find important application in shape control, vibration control, flutter suppression and buffet control. This article introduces a load simulation method of piezoelectric actuators, by which the differences between the piezoelectric ceramic actuator and piezoelectric fiber composite actuator are discussed. Based on the qualitative analysis, the drive characteristics of a piezoelectric fiber composite actuator are discussed in terms of ply mode, ply angle and ply number. The analysis results show that bending and torsion deformation may be achieved by the symmetrical ply with an inverse electric field, and torsion deformation achieved by the antisymmetric ply with the same electric field. The maximum angle of rotation and maximum deflection may be achieved respectively by 45° ply and 0° ply. The drive load may increase with multi-ply construction but the overall deformation is dependent on the stiffness ratio between the actuators and the wing. The transfer of the elastic axes is very remarkable with the symmetrical ply and this characteristic is worthy of attention in aeroelastic control. |
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来源
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航空学报
,2010,31(2):418-425 【核心库】
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关键词
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压电驱动器
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压电纤维复合材料
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形状控制
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振动控制
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驱动特性
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地址
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1.
北京航空航天大学 航空科学与工程学院, 北京, 100191
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中国科学院 力学研究所 工程科学部, 北京, 100190
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-6893 |
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学科
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航空 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:3919419
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