U.S.-Germany Program: Dissertation Research in Mechanical Engineering

美德项目：机械工程论文研究

• 批准号: 9504905
• 负责人: Craig Rogers
• 金额: $ 0.67万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1995-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9504905&HistoricalAwards=false
• 关键词: U.S.; Germany; Program; Dissertation; Research

This award supports Eric Flint, a graduate student of Professor Craig A. Rogers in the Center for Intelligent Material Systems and Structures, Virginia Polytechnic Institute and State University, to spend five months carrying out research at the German Aerospace Research Establishment (DLR) in Braunschweig, Germany. His host for this period of dissertation-related research is Jorg Melcher, Deputy Head of the Division of Adaptive Structural Systems of the Institute of Structural Mechanics of DLR. This Institute is possibly the strongest in Europe in the area of adaptive structural vibration control. Research at CIMMS is focused on characterizing the electrical and mechanical behavior of `smart` actuators as part of complex structures. Mr. Flint is working on intelligent design of such smart system technology. Research in the German institute has concentrated on building structurally integrated actuators and designing control algorithms to isolate vibration and control aeroelastic effects.. Mr. Flint's dissertation research visit will provide an active link between the U.S. and German research groups, giving CIMSS access to the large test structures and other types of stack actuators available at DLR. The control of undesirable vibration and other behavior in truss-like structures by passive design improvement is reaching its technical limit. Active control offers a way to further improve the performance range of structures. Adding a method of putting force into the structure creates force paths which can be used to control and eliminate excess vibration. A promising approach is multi-layered stack actuators, which consist of thin layers of active materials that are mechanically in serial and electrically in parallel. This area of control-structure interaction is of widespread interest in the U.S. because of its potential to significantly improve the efficiency and performance of a wide variety of structural systems, from airplanes to communication antennae, as well as suppressing vibration in heavy machinery, bridges and certain types of buildings.

该奖项支持埃里克·弗林特（Eric Flint），埃里克·弗林特（Eric Flint）是弗吉尼亚理工学院和州大学智能材料系统与结构中心的Craig A. Rogers教授，在德国布劳恩斯奇维格（Braunschweig）在德国航空航天研究所（DLR）进行了五个月的研究。 他在这段论文有关的研究期间的主持人是DLR结构力学研究所的自适应结构系统司法部负责人Jorg Melcher。在自适应结构振动控制领域，该研究所可能是欧洲最强的。 CIMMS的研究重点是将“ Smart”执行器的电气和机械行为表征为复杂结构的一部分。 弗林特先生正在研究这种智能系统技术的智能设计。 德国研究所的研究集中在建造结构集成的执行器上，并设计控制算法以隔离振动和控制气体弹性效应。弗林特先生的论文研究访问将提供美国和德国研究小组之间的积极联系，使CIMSS可以访问DLR的大型测试结构和其他类型的堆栈Actuators。 通过被动设计改进来控制桁架样结构中不良振动和其他行为的控制已达到其技术限制。 主动控制提供了进一步改善结构的性能范围的方法。添加一种将力放入结构中的方法会产生力路径，可用于控制和消除过多的振动。 有前途的方法是多层堆栈执行器，其由薄层的薄层组成，这些材料在机械上是在串行中并平行于电的。 该控制结构相互作用领域在美国具有广泛的兴趣，因为它有可能显着提高从飞机到通信天线的各种结构系统的效率和性能，并抑制了重型机械，桥梁，桥梁和某些类型的建筑物的振动。