Ferromagnetic shape memory thin film Actuators

铁磁形状记忆薄膜致动器

• 批准号: 5455129
• 负责人: Professor Dr. Manfred Kohl
• 金额: --
• 依托单位: Institut für Mikrostrukturtechnik (IMT)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2005
• 资助国家: 德国
• 起止时间: 2004-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5455129?language=en
• 关键词: Ferromagnetic; shape; memory; thin; film

The objective of the project is the development of a novel type of actuation and sensing devices based on thin films of ferromagnetic shape memory alloys. These materials show a unique combination of ferromagnetism and conventional shape memory effects, which enables a considerable performance increase over compareable mechanisms. The project is a collaborative effort between the University of Karlsruhe (IMT) and partners from the North Carolina State University (NCSU), USA, who are simultaneously submitting their counterpart to the National Science Foundation (NSF). It combines the capabilities at both institutes into a unique interdisciplinary and strongly interlinked research activity. Ni-Mn-Ga thin films will be considered as base materials. By systematic experiments, an empirical database bill be established to develop the first fully coupled model for the magneto-thermo-mechanical behavior of the material. The material model will be simultaneously implemented into a coupled FEM program and a single-degree-of-freedom formulation to simulate the performance of a benchmark actuator emphasizing accuracy and CPU time, respectively. A smart microoptical deflection system will be developed as a demonstrator, which is a key component for optical information technology.

该项目的目标是开发一种基于铁磁形状记忆合金薄膜的新型驱动和传感设备。这些材料显示出铁磁性和传统形状记忆效应的独特组合，这使得性能比可比较的机制有相当大的提高。该项目是卡尔斯鲁厄大学（IMT）和来自美国北卡罗来纳州州立大学（NCSU）的合作伙伴之间的合作努力，他们同时向国家科学基金会（NSF）提交了他们的对应项目。它结合了两个研究所的能力，成为一个独特的跨学科和密切相关的研究活动。Ni-Mn-Ga薄膜将被认为是基础材料。通过系统的实验，建立了一个实验数据库，建立了第一个磁-热-力耦合模型。材料模型将同时实施到一个耦合的有限元程序和一个单自由度的配方，以模拟一个基准致动器的性能，强调精度和CPU时间，分别。一个智能微光学偏转系统将被开发作为一个演示，这是一个关键组成部分的光学信息技术。