| SMA智能复合材料结构的有限元分析与实验研究 |
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| 引用本文： | 王军,郦正能.SMA智能复合材料结构的有限元分析与实验研究[J].航空学报,2006,27(4):610-613. |
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| 作者姓名： | 王军 郦正能 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院, 北京 100083 |
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| 摘 要： | 建立了嵌入形状记忆合金(SMA)丝作为智能驱动器的智能复合材料层板结构模型,并对结构变形进行了分析。对SMA的本构关系进行了推导,得到了不同温度下的应力应变关系,并加入了界面的柔化折算,采用数值方法求解。驱动器镶嵌于层板表面或内部,根据电阻反推得到准确的温度。不同温度下的驱动变形计算结果同试验结果吻合较好。对结构的振动特性进行了测试,得到了不同温度下的模态频率变化。
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| 关 键 词： | 有限元法 形状记忆合金 本构关系 |
| 文章编号： | 1000-6893(2006)04-0610-04 |
| 收稿时间： | 2005-01-12 |
| 修稿时间： | 2005年1月12日 |
Finite Element Analysis and Experiment Research on SMA Smart Composite Structure |
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| WANG Jun,LI Zheng-neng.Finite Element Analysis and Experiment Research on SMA Smart Composite Structure[J].Acta Aeronautica et Astronautica Sinica,2006,27(4):610-613. |
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| Authors: | WANG Jun LI Zheng-neng |
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| Institution: | School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | A model of smart composite material structure embedded with shape memory alloy slims as smart actuator is established,with which the distortion of this structure is gained.A differential form of the SMA(Shap Memory Alloy) constitutive relations is derived,and the relationship between stress and strain is obtained at different temperatures by numerical method.The flexible discount of the interface is taken into account.The actuator is bonded to its surface or embedded within the laminate,and the temperature of which is obtained by measuring its resistance.The result of actuating of computing model is well with that of experiment.The vibration characteristic of the smart structure is measured to obtain the variety of model frequency at different temperatures. |
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| Keywords: | finite element method shape memory alloy constitutive relation |
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