机构地区: 内蒙古科技大学机械工程学院
出 处: 《包头钢铁学院学报》 2003年第3期255-257,共3页
摘 要: 关于稀土超磁载伸缩材料Terfenol D的磁致伸缩特性国内外已有大量报道,但大多数都是基于载荷(预紧力 )在磁致伸缩过程中保持不变条件下的磁致伸缩特性研究 .在这些研究的基础上分析了Terfenol D材料在变负载时的磁致伸缩特性 ,介绍了变负载动态特性曲线的绘制方法并讨论了恒载与变载的特性曲线的特点与差异 。 The magnetostriction properties of Terfenol-D materials,which were studied under a condition of constant preloading,were reported by many technical articles.The magnetostriction properties are studied under a unconstant preloading.Based on this,the method used to draw the curve of magnetostriction properties under unconstant preloading is introduced in detail.By the way,the difference between the two cases is pointed out too.It is useful to design or analyze magnetostricative actuator.