EAGER: Flutter Systems Research

EAGER：颤振系统研究

• 批准号: 1128693
• 负责人: A Balakrishnan
• 金额: $ 18.85万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-05-15 至 2015-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1128693&HistoricalAwards=false
• 关键词: EAGER; Flutter; Systems; Research

The proposed research is comprised of three areas: (a) harvesting piezoelectric energy from beam structure flutter in air flow, (b) Palatal Flutter Model for Snoring/Apnea and (c) unobtrusive Wind Flow Monitoring by Laser Scintillation. The proposed method will be validated by wind tunnel testing.Intellectual MeritThis work makes original contributions to: (a) the Continuum Theory of Axial as well as Normal Fluid Flow over a Structure such as a thin Beam: the Flutter speed and LCO amplitude (b) optimization theory for cantilever beam parameters to maximize the output power generated by the piezoelectric strips spanning the beam structure in Flutter (c) derivation of the Laser scintillation diode detector output zero crossing rate due to crosswind. Broader ImpactThe potential impact of includes the development of renewable energy methods based on harvesting piezoelectric energy from aeroelastic flutter. The proposed work has potential to provide quantitative understanding of Snoring/Apnea as aeroelastic flutter of the soft palate and possible means of remedy.

拟议的研究由三个领域组成：（a）从气流中的梁结构颤动收集压电能量，（b）用于打鼾/呼吸暂停的腭颤动模型和（c）通过激光闪烁进行不显眼的风流监测。所提出的方法将通过风洞测试进行验证。 智力优点这项工作对以下方面做出了原创贡献：（a）薄梁等结构上的轴向和法向流体流动的连续理论：颤振速度和LCO振幅（b）悬臂梁参数的优化理论，以最大化颤振中跨越梁结构的压电条产生的输出功率（c）推导 激光闪烁二极管探测器因侧风而输出过零率。更广泛的影响潜在影响包括开发基于从气动弹性颤振中收集压电能量的可再生能源方法。 拟议的工作有可能提供对打鼾/呼吸暂停作为软腭气动弹性扑动的定量理解以及可能的补救方法。