论文标题
在软非磁性材料中固化虚拟磁力机械耦合
Curing spurious magneto-mechanical coupling in soft non-magnetic materials
论文作者
论文摘要
目前的工作涉及虚假耦合效应的问题，这些效应在完全耦合的磁机械有限元元件模拟中普遍存在，涉及非常柔软的非磁性或类似空气的介质。我们首先根据能量考虑因素解决了伪磁机械效应及其直观解释的表征。然后，作为主要贡献，我们提出了两种新方法来修剪非磁性介质中不需要的虚假磁力机械耦合。将所提出的方法与嵌入（i）空气或真空中的磁体以及（ii）非常软弹性非磁性介质的磁体的既定方法进行了比较。比较表明所提出的方法是准确有效的。此外，它们还允许对耦合边界值问题进行一致的线性化，这对于兼容结构的模拟至关重要。为了获得拟议方法的可重复性和可访问性，我们提供了NetGen/ngsolve以及将结果作为补充材料复制所需的所有代码。
The present work is concerned with the issue of spurious coupling effects that are pervasive in fully coupled magneto-mechanical finite element simulations involving very soft non-magnetic or air-like media. We first address the characterization of the spurious magneto-mechanical effects and their intuitive interpretation based on energy considerations. Then, as main contribution, we propose two new ways to prune the undesired spurious magneto-mechanical coupling in non-magnetic media. The proposed methods are compared with established methods in the context of magnetic bodies embedded in (i) air or vacuum and (ii) very soft elastic non-magnetic media. The comparison shows that the proposed approaches are accurate and effective. They, furthermore, allow for a consistent linearization of the coupled boundary value problems, which is crucial for the simulation of compliant structures. For reproducibility and accessibility of the proposed methods, we provide our implementations with Netgen/NGSolve as well as all codes necessary for the reproduction of our results as supplementary material.
