| 形状记忆合金复合结构无线应变监测的新方法 |
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| 引用本文： | 邱自学,姚兴田,袁江. 形状记忆合金复合结构无线应变监测的新方法[J]. 传感器与微系统, 2006, 25(7): 73-75 |
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| 作者姓名： | 邱自学 姚兴田 袁江 |
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| 作者单位： | 南通大学,机械工程学院,江苏,南通,226007 |
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| 基金项目： | 江苏省南通市科技带头人培养基金 |
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| 摘 要： | 将一定体积分数的形状记忆合金丝埋入复合材料形成混杂复合结构,可明显提高结构的应变吸收能量,改善复合材料结构的韧性.选择将这种混杂结构中的一些增强形状记忆合金丝作为电容器的电极,将构成的电容器接到振荡电路,结构的变形引起电容量的变化,从而导致振荡频率的改变,通过测量振荡电路的频率可实现结构应变的无线监测.理论分析和试验结果表明:这种方法是可行的.
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| 关 键 词： | 复合结构 结构增强 结构健康监测 无线 应变监测 形状记忆合金 形状 记忆合金 复合结构 应变监测 方法 structures method strain monitoring wireless 结果 试验 分析 理论 无线监测 实现结构 振荡频率 测量 变化 电容量 变形 |
| 文章编号： | 1000-9787（2006）07-0073-03 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 2005-12-26 |
A novel wireless strain monitoring method for SMA-reinforced structures |
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| QIU Zi-xue,YAO Xing-tian,YUAN Jiang. A novel wireless strain monitoring method for SMA-reinforced structures[J]. Transducer and Microsystem Technology, 2006, 25(7): 73-75 |
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| Authors: | QIU Zi-xue YAO Xing-tian YUAN Jiang |
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| Affiliation: | School of Mechanical Engineering, Nantong University, Nantong 226007, China |
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| Abstract: | The specific volume fraction of shape memory alloy (SMA) wires being embedded in composite material becomes a hybrid composite structure.The strain energy absorption of structure is significant increased;the fracture toughness of the structure is improved.If some SMA wire reinforced structures is used as an electrode of electric capacitor;the capacitor is connected to the oscillator circuit;the structure deformation causes the electrical capacitance change of the circuit,and the change of oscillating frequency is generated.Measuring the change of frequency of the circuit can obtain the strain of the deformed structure wirelessly.Theoretical analyses and experimental results show that this method is reliable. |
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| Keywords: | composite structure structural reinforcing structural health monitoring wireless strain monitoring shape memory alloy(SMA) |
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