EAGER: Multifunctional Cellular Metacomposite: Low Frequency Noise Absorber and Energy Harvesting

EAGER：多功能细胞超复合材料：低频噪声吸收器和能量收集

• 批准号: 1037569
• 负责人: Guoliang Huang
• 金额: $ 3万
• 依托单位: University of Arkansas Little Rock
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2012-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1037569&HistoricalAwards=false
• 关键词: EAGER; Multifunctional; Cellular; Metacomposite; Low

The objective of this EAGER project is to develop a novel multifunctional cellular metacomposite with interplay between a cellular composite and metamaterial response through microstructure design. As a superior lightweight, thin and strong structural material, the metacomposite will simultaneously serve to attenuate low frequency noise (LFN) and low frequency vibration (LFV), and convert hazardous LFN and LFV energy into usable electric energy through the piezoelectric effect. The study will provide a theoretical foundation to evaluate acoustic metamaterials and understand microstructure mechanism. If successful, the theory and approaches in this research will lead to industrial engineering applications. The proposed design also promises to accelerate acoustic multifunctional metacomposites for energy harvesting, which is cheap, clean and very efficient. Practical engineering applications of metamaterials are still in the conceptual stage and no real acoustic cellular metacomposite have been developed. This is a high-risk, but potentially high impact study. The subject of this research is of fundamental interest to acoustic metamaterials and novel functional material design. This research will provide a new paradigm for design of mechanical systems such as low-frequency vibration suppression, low-frequency noise filter and green energy harvesting. The research allows students to integrate analytical, numerical and experimental approaches into their education and research programs, which will significantly contribute to the independent research career of the trainees. This work will have deep and lasting educational and outreach benefits to UALR and the surrounding region.

这个渴望的项目的目的是通过微观结构设计开发一种新型的多功能细胞元元素与细胞复合材料和超材料响应之间的相互作用。作为出色的轻质，薄且强大的结构材料，MetaComposite将同时用于减轻低频噪声（LFN）和低频振动（LFV），并通过PieZoEleclectric效应将有害的LFN和LFV能量转化为有害的LFN和LFV能量。该研究将为评估声学超材料并了解微观结构机制提供理论基础。如果成功，这项研究的理论和方法将导致工业工程应用。拟议的设计还有望加速声学多功能元材料以进行能量收集，该材料便宜，干净且非常有效。超材料的实用工程应用仍处于概念阶段，并且没有开发出真正的声学细胞元表复合材料。这是一项高风险但潜在的高影响研究。这项研究的主题是声学超材料和新型功能材料设计的基本兴趣。这项研究将为设计机械系统（例如低频振动，低频噪声滤波器和绿色能量收集）提供新的范式。这项研究使学生可以将分析，数值和实验方法整合到其教育和研究计划中，这将极大地促进学员的独立研究职业。这项工作将对UALR及其周边地区具有深厚而持久的教育和外展益处。