弹性支撑条件下声子晶体角梁结构振动特性分析研究  

The vibration characteristics of one-dimensional phononic crystals angle beam structure with elastic supporting

作　　者：梁谦 曹江涛[1] 郝会乾[1] LIANG Qian;CAO Jiangtao;HAO Huiqian(The 54th Research Institute of CETC,Shijiazhuang Hebei 050081,China;College of Mechanical and Electrical Engineering,Harbin Engineering University,Harbin Heilongjiang 150001,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001

出　　处：《河北省科学院学报》2024年第5期45-49,共5页Journal of The Hebei Academy of Sciences

摘　　要：为了进一步探究一维声子晶体结构的振动特性,本文开展了弹性支撑条件下一维声子晶体角梁结构弯曲位移的振动特性研究。通过采用有限元分析法,分别对L型和T型声子晶体角梁结构进行模型建立,并对频率范围内的弯曲位移响应曲线进行绘制。同时,对弹性支撑条件、晶格长度、组分比、连接角度以及弹性支撑刚度对不同类型声子晶体角梁结构的带隙影响规律进行了研究。结果表明,弹性支撑刚度对声子晶体角梁结构的第一带隙有着明显的影响。To further investigate the vibration characteristics of the one-dimensional phononic crystal structure,the vibration characteristics of bending displacement of one-dimensional phononic crystal angle beam structure under elastic support condition are studied.By adopting the finite element analysis method,the models of L-shaped and T-shaped phononic crystal angle beam structures are established respectively,and the bending displacement response curves in the frequency range are plotted.At the same time,the influence of elastic support conditions,lattice length,composition ratio,connection angle,and elastic support stiffness on the bandgap of various types of phononic crystal angle beam structures is studied.The results show that the elastic support stiffness has a significant effect on the first bandgap of the phononic crystal angle beam structure.

关 键 词：弹性支撑 声子晶体角梁结构 弯曲位移 振动特性 

分 类 号：TG156[金属学及工艺—热处理]