对于巨型磁力强制性材料的基于域切换的非线性合响应.
Yunshuai Chen1, Pengyang Li1, Jian Sun1
1School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
Materials (Basel, Switzerland)
|July 29, 2023
概括
这项研究引入了一种新的构成模型,用于预测特尔-D的非线性磁阻反应,考虑跨多个尺度的合磁性,弹性和热现象. 该模型为设计巨型磁强制传感器和控制振动提供了指导.
科学领域:
- 材料科学 材料科学 材料科学
- 固体力学 固体力学是什么
- 磁力学 磁力学 是一种
背景情况:
- 在Terfenol-D这样的材料中,非线性强磁性行为是复杂的.
- 了解多场合现象 (磁性,弹性,热性) 对材料应用至关重要.
- 现有的模型可能无法完全捕捉微观结构相互作用和歇斯底里.
研究的目的:
- 开发一个多层次的,三维的构成模型来预测Terfenol-D的非线性磁阻反应.
- 为了结合磁域,颗粒和多晶复合体之间的相互作用.
- 为了解释合的磁性,弹性,热性和机械现象.
主要方法:
- 一种利用域旋转机制的微观现象学方法.
- 一个完全合的自我一致的同质化方案.
- 应用博尔兹曼函数和适应的吉尔斯-阿瑟顿模型用于歇斯底里.
- 吉布斯函数的泰勒数列扩展.
主要成果:
- 该模型成功地预测了Terfenol-D在各种外部负荷和磁刺激下非线性磁阻应的反应.
- 它准确地捕捉到不同热环境的影响.
- 谷物尺度的散量菌株是使用博尔兹曼函数和同质化计算的.
结论:
- 开发的模型为理解和预测复杂的磁强化行为提供了一个强大的框架.
- 它为精确控制非线性振动提供了理论指导.
- 该模型有助于在多个尺度上进行旋转的巨型磁力强化传感器的最佳设计.
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