超磁致伸缩材料Terfenol-D是一种新型的功能材料,以Terfenol-D为核心元件设计各种换能器时,磁场H和应力σ是必须考虑的因素.研究了一定偏置磁场下外加压应力对Terfenol-D棒的应变和磁感应强度的影响.首先测试了在一定的偏置磁场下外压应力和应变的关系,结果表明偏置磁场一定时,应变和应力之间的关系复杂,可用磁性材料技术磁化理论来解释.其次又测试了一定偏置磁场下的外加动态应力和磁感应强度的关系,测试结果表明一定的偏置磁场下,外加压应力增加,磁感应强度减小;偏置磁场为5kA/m时,磁感应强度达到最大值.该实验结果可以为基于Terfenol-D的换能器件的设计提供技术支持.
参考文献
| [1] | Kim Youngkyu;Kim Y Y.[J].Sensors and Actuators A-Physical,2007(133):447-456. |
| [2] | Dapino M J .[J].Struct Eng Mech J,2002,1:1-28. |
| [3] | Hristoforou E;Ktena A.[J].Journal of Magnetism and Magnetic Materials,2007(316):372-378. |
| [4] | Moon SJ;Lim CW;Kim BH;Park Y .Structural vibration control using linear magnetostrictive actuators[J].Journal of Sound and Vibration,2007(4/5):875-891. |
| [5] | Wang B W;Busbridge S C;Li Y X et al.[J].Journal of Magnetism and Magnetic Materials,2000,218(2-3):198. |
| [6] | Wang B W;Busbridge S C;Guo Z KJ et al.[J].Journal of Applied Physics,2003,93(10):8979. |
| [7] | Wang B W;Weng L;Li S Y.Dynamic Characteristics of Tb-Dy-Fe Crystal with 〈110〉 Axial Alignment[A].北京,2004:475-479. |
| [8] | Shouzeng ZHOU,XuexuGAO,Maocai ZHANG,Qing ZHAO,Zhenhua SHI.Giant Magnetostrictions of Tb-Dy-Fe Polycrystals with. |
| [9] | Chakraborty S;Tomlinson GR .An initial experimental investigation into the change in magnetic induction of a Terfenol-D rod due to external stress[J].Smart Materials & Structures,2003(5):763-768. |
| [10] | Calkins F T;Dapino M J;Flatau A B .[J].Symposium on Smart Structures and Materials,1997,3041:23. |
| [11] | 张智祥 .多参数磁测量系统的研制[D].河北工业大学,2002. |
| [12] | 苑德福;马兴隆.磁性物理学[M].北京:电子工业出版社,1999 |
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