Propagation of Lamb waves in one dimensional nesting Fibonacci superlattices thin plates
We present a comparative study on band-gap structures of Lamb waves propagating in one-dimensional periodic sequences thin plate,Fibonacci sequences thin plate,and the nesting Fibonacci superlattices thin plates with different generation numbers respectively.By comparing among TPS in different plates,it is found that Fibonacci model doesnt present band gaps with generation numbers S3,S4,and S5.Band gaps occur and split in Fibonacci model when generation number increases to S6.But for the nesting Fibonacci superlattices with S3,more band gaps occur and band gaps become very flat.With generation numbers increase to S4,S5,and S6,more new band gaps present.It provides flexible choices for real engineering requirement.
Lamb waves nesting Fibonacci superlattices band-gap structures finite element method
Jian Gao Xiu-Fen Wu Xing-Gan Zhang
School of Electronics Science and Engineering Nanjing University, Nanjing 210093, Peoples Republic of China
国际会议
台湾
英文
306-310
2011-12-11（万方平台首次上网日期，不代表论文的发表时间）