Collaborative Research: Tailoring Energy Flow in Magnetic Oscillator Arrays

合作研究：定制磁振荡器阵列中的能量流

• 批准号: 1300307
• 负责人: Brian Mann
• 金额: $ 25万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2016-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1300307&HistoricalAwards=false
• 关键词: Collaborative; Research; Tailoring; Energy; Flow

This project seeks to develop an integrated research and educational collaboration to examine the fundamental behavior of large arrays of coupled nonlinear oscillators. Through a combined series of theoretical and experimental investigations, we will investigate how alterations in the coupling (via magnetic interactions) can tailor bandgaps, bifurcations, the localization of energy, and a new phenomena called a passively reconfiguring bandgap. Research studies build from theory to micro/macro experimental demonstrations with a focus on tuning the magnetic interactions to create desired phenomena. The Principle Investigators believe the passively reconfiguring bandgaps, where a response threshold could be used to completely reconfigure the bandgap structure, offers a fundamentally new capability for avoiding catastrophic failures. The fundamental nature of the research investigations is expected to improve engineering practice with specific examples of how to exploit nonlinearity to achieve desirable energy flow behaviors in oscillator arrays. The avoidance of catastrophic failures from mechanical or acoustic overloads is a specific application area for this research. Educational and outreach efforts will leverage the PIs successful involvement in existing programs, the Pratt Fellows program at Duke University and the NSF funded Southeast Alliance for Graduate Education and the Professoriate (SEAGEP) program at the University of Florida, to attract underrepresented students to participate in engineering research and pursue advanced degrees. Summertime graduate student exchanges are planned to broaden the perspectives of everyone involved and enhance the project collaboration and impact.

该项目旨在发展一个综合的研究和教育合作，以检查耦合非线性振荡器的大型阵列的基本行为。 通过一系列的理论和实验研究相结合，我们将研究如何改变耦合（通过磁相互作用）可以定制带隙，分叉，能量的本地化，和一个新的现象称为被动重新配置带隙。 研究从理论到微观/宏观实验演示，重点是调整磁相互作用以创造所需的现象。 主要研究人员认为，被动重新配置带隙，其中响应阈值可用于完全重新配置带隙结构，提供了一种避免灾难性故障的全新能力。研究调查的基本性质，预计将改善工程实践的具体例子，如何利用非线性实现理想的能量流行为的振荡器阵列。 避免机械或声学过载引起的灾难性故障是本研究的一个特定应用领域。教育和推广工作将利用PI成功参与现有计划，杜克大学的普拉特研究员计划和NSF资助的东南研究生教育联盟和佛罗里达大学的教授（SEAGEP）计划，以吸引代表性不足的学生参与工程研究并攻读高级学位。 暑期研究生交流计划，以扩大每个人参与的观点，并加强项目的合作和影响。