U.S.-Western Europe Cooperative Research on Joining of Silicon Nitride

美国-西欧氮化硅连接合作研究

• 批准号: 9414107
• 负责人: Andreas Glaeser
• 金额: $ 1.59万
• 依托单位: University of California-Berkeley
• 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: 1995-04-15 至 1998-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9414107&HistoricalAwards=false
• 关键词: U.S.; Western; Europe; Cooperative; Research

9504905 Rogers 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 CIMMS 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. ***

9504905 Rogers 该奖项支持弗吉尼亚理工学院暨州立大学智能材料系统和结构中心 Craig A. Rogers 教授的研究生 Eric Flint 在德国航空航天研究所 (DLR) 进行五个月的研究在德国布伦瑞克。 本期论文相关研究的主持人是 DLR 结构力学研究所自适应结构系统部副主任 Jorg Melcher。 该研究所可能是欧洲自适应结构振动控制领域实力最强的研究所。 CIMMS 的研究重点是表征作为复杂结构一部分的“智能”执行器的电气和机械行为。 Flint先生正在致力于此类智能系统技术的智能设计。 德国研究所的研究重点是构建结构集成的执行器和设计控制算法来隔离振动和控制气动弹性效应。弗林特先生的论文研究访问将为美国和德国研究小组之间建立积极的联系，使 CIMMS 能够接触到DLR 提供大型测试结构和其他类型的堆栈执行器。 通过被动设计改进来控制桁架式结构中的不良振动和其他行为正在达到其技术极限。 主动控制提供了一种进一步提高结构性能范围的方法。 添加一种向结构施加力的方法可以创建可用于控制和消除过度振动的力路径。 一种有前途的方法是多层堆栈执行器，它由机械串联和电气并联的活性材料薄层组成。 控制与结构相互作用的这一领域在美国引起了广泛的兴趣，因为它有可能显着提高从飞机到通信天线等各种结构系统的效率和性能，以及抑制重型机械、桥梁和建筑的振动。某些类型的建筑物。 ***