复合材料科学与工程Issue(12)：54-61,8.DOI:10.19936/j.cnki.2096-8000.20241228.008
四韧带手性夹芯结构的振动带隙特性研究
Vibration band gap characterization of four-ligament chiral sandwich structures
张锦光 1陈睿 2窦玉宽 2鲁季坤 2文湘隆2
作者信息
- 1. 武汉理工大学 机电工程学院,武汉 430070||武汉理工大学 先进材料制造装备与技术研究院,武汉 430070
- 2. 武汉理工大学 机电工程学院,武汉 430070
- 折叠
摘要
Abstract
In this paper,to attenuate the elastic wave,a new type of sandwich structure with a four-ligament chiral structure as the core and carbon fiber composite material as the panel is proposed.Firstly,based on Bloch's theorem and COMSOL finite element software,the vibration bandgap of the four-ligament chiral structure is solved;secondly,the influence of the filling materials of the nodes of the protocell and the geometrical parameters on the vi-bration bandgap of the chiral structure are analyzed;thirdly,the transmission characteristics of the waves within the four-ligament chiral sandwich structure are investigated in the frequency domain;and lastly,the experiments on the vibration transmission and attenuation characteristics of the four-ligament chiral sandwich structure are carried out.The study shows that:the chiral structure node filling material can produce a low-frequency bandgap,and the geo-metric parameters have a great influence on the bandgap,by adjusting the geometric parameters,the bandgap can be made to be in the low-frequency region;when the vibration frequency is in the range of the bandgap,the chiral structure has a good attenuation characteristic.These findings will guide the application of four-ligament chiral sandwich structures in engineering.关键词
四韧带手性结构/碳纤维复合材料/夹芯结构/振动带隙/几何参数Key words
four-ligament chiral structure/carbon fibre reinforced plastics/sandwich structure/vibration band gap/geometric parameters分类
通用工业技术引用本文复制引用
张锦光,陈睿,窦玉宽,鲁季坤,文湘隆..四韧带手性夹芯结构的振动带隙特性研究[J].复合材料科学与工程,2024,(12):54-61,8.
