开发基于亥姆霍兹谐振腔的通风吸声超材料创新性实验INNOVATIVE EXPERIMENTS ON A VENTILATED SOUND-ABSORBING META-MATERIAL BASED ON HELMHOLTZ RESONATOR
刘婷,熊泓媛,黄映洲,潘量,蒲贤洁,徐玮婧,肖鹏
摘要(Abstract):
通风吸声超材料是目前解决通风降噪问题的热点研究,可围绕通风吸声超材料的研究方案开展大学物理实验教学。本研究方案采用有限元仿真软件COMSOL Multiphysics理论建模并计算,优化设计基于不完美亥姆霍兹谐振腔的通风吸声超材料,该超材料在调整结构参数后能在低频噪音下实现宽频吸收;利用3D打印技术打印超材料结构,并采用突破黑匣子的实验装置定量测量声学超材料的吸声性能。本文将前沿、热点研究引入大学物理实验教学,模拟、还原科学研究的过程,增强实验的高阶性、创新性和挑战度,采用“小组式自主探究+答辩汇报”的教学模式,全面提升学生的“5C”核心能力。
关键词(KeyWords): 低频吸声;声学超材料;大学物理实验;科教融合
基金项目(Foundation): 重庆市高等教育教学改革研究项目(No.223022、No.233024、No.243011);; 重庆大学教师教学发展专项项目(No.2023JF05);; 2023年重庆大学实验技术人员研修项目(No.20231202、No.20231110、No.20231204);; 教育部产学合作协同育人项目(No.231000532113527、No.231000532115242、No.231104090201308)
作者(Author): 刘婷,熊泓媛,黄映洲,潘量,蒲贤洁,徐玮婧,肖鹏
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