Leveraging Metamaterials and Phase Control in ThermoAcoustic Systems

在热声系统中利用超材料和相位控制

• 批准号: 1904254
• 负责人: Mostafa Nouh
• 金额: $ 39.96万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-05-01 至 2025-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1904254&HistoricalAwards=false
• 关键词: Leveraging; Metamaterials; Phase; Control; ThermoAcoustic

This objective of this research project is to benefit the national interests by advancing the field of thermoacoustic energy generation using innovative concepts in metamaterials and acoustic wave control. Such systems have the potential to revolutionize modern-era energy generation by providing a clean and sustainable alternative to traditional energy systems. Thermoacoustic systems involve no combustion and therefore mitigate major concerns over the environmental footprint of fossil-fuel-based energy in the U.S. economy. The realization of thermoacoustic systems has the potential to impact a wide range of applications including space power generation, solar energy scavenging and waste heat recovery. Almost all thermoacoustic systems suffer from two inherent limitations: Low power density and design complexity. This award supports fundamental research to address both limitations by leveraging tools from dynamics and controls combined with the unique wave filtering capabilities of acoustic metamaterials. The multi-disciplinary project will develop new tools to enhance the learning experience of students in the fields of dynamics, acoustics and sustainable energy generation, and will broaden participation of underrepresented groups through a range of outreach activities. ThermoAcoustic Generators (TAGs) are devices engineered to spontaneously generate powerful sound waves from a heat source which are then harnessed as electricity or mechanical motion. They have the potential to approach the entropic limit imposed by thermodynamics. This project seeks to reach this limit by developing a novel class of metamaterial-based TAGs which rely on the optimal control of phasing between pressure and velocity which prevents the formation of permanent standing waves in the acoustic resonator. The desirable acoustic conditions are achieved without additional bulk structures. Instead, inevitable nonlinearities emerging from the small and complex pores of the thermoacoustic stack will be used to synthesize a new TAG chamber that enables traveling thermoacoustic waves to propagate to one end of the resonator (where energy scavenging takes place via electro-acoustic transduction) while impeding boundary reflections. This work will combine tools from dynamic systems theory with state-of-the-art experimental and laboratory-scale investigations.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

本研究项目的目标是通过利用超材料和声波控制方面的创新概念推进热声能源产生领域，从而造福国家利益。这种系统有可能通过提供传统能源系统的清洁和可持续替代品来彻底改变现代能源生产。热声系统不涉及燃烧，因此减轻了对美国经济中基于化石燃料的能源的环境足迹的主要担忧。热声系统的实现有可能影响广泛的应用，包括空间发电、太阳能回收和废热回收。几乎所有的热声系统都有两个固有的限制：低功率密度和设计复杂性。该奖项支持通过利用动力学和控制工具以及声学超材料独特的滤波能力来解决这两个限制的基础研究。这个多学科项目将开发新的工具，以提高学生在动力学、声学和可持续能源生产领域的学习经验，并将通过一系列外展活动扩大代表性不足群体的参与。热声发生器（TAGs）是一种设计用于从热源自发产生强大声波的设备，然后利用热源作为电力或机械运动。它们有可能接近热力学规定的熵极限。这个项目试图通过开发一种新型的基于超材料的标签来达到这个极限，这种标签依赖于压力和速度之间的相位的最佳控制，从而防止在声学谐振器中形成永久驻波。无需额外的体结构即可实现理想的声学条件。相反，从热声堆叠的小而复杂的孔隙中出现的不可避免的非线性将用于合成新的TAG腔室，该腔室使行进的热声波传播到谐振器的一端（通过电声转导进行能量清除），同时阻碍边界反射。这项工作将结合工具从动态系统理论与最先进的实验和实验室规模的调查。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

On-demand harmonic wave suppression in non-Hermitian space-time-periodic phased arrays

• DOI: 10.1088/1361-665x/acd597
• 发表时间: 2023-05
• 期刊: Smart Materials and Structures
• 影响因子: 4.1
• 作者: R. Adlakha;M. Nouh

Nonreciprocal Elastic Wave Beaming in Dynamic Phased Arrays

• DOI: 10.1103/physrevapplied.16.034033
• 发表时间: 2021-09
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: M. Moghaddaszadeh;R. Adlakha;M. Attarzadeh;A. Aref;M. Nouh

Uncovering low frequency band gaps in electrically resonant metamaterials through tuned dissipation and negative impedance conversion

通过调谐耗散和负阻抗转换揭示电谐振超材料中的低频带隙

• DOI: 10.1088/1361-665x/ac3434
• 发表时间: 2021
• 期刊: Smart Materials and Structures
• 影响因子: 4.1
• 作者: Callanan, J;Willey, C L;Chen, V W;Liu, J;Nouh, M;Juhl, A T
• 通讯作者: Juhl, A T

Local resonance bandgap control in a particle-aligned magnetorheological metamaterial

• DOI: 10.1038/s43246-023-00419-7
• 发表时间: 2023-11
• 期刊: Communications Materials
• 影响因子: 7.8
• 作者: M. Moghaddaszadeh;Andrew Ragonese;Yong Hu;Zipeng Guo;Amjad Aref;Chi Zhou;Shenqiang Ren;M. Nouh

Theory of Truncation Resonances in Continuum Rod‐Based Phononic Crystals with Generally Asymmetric Unit Cells

• DOI: 10.1002/adts.202200700
• 发表时间: 2022-10
• 期刊: Advanced Theory and Simulations
• 影响因子: 3.3
• 作者: H. A. Al Ba’ba’a;C. Willey;V. Chen;A. Juhl;M. Nouh