Asymmetric Lamb Wave Propagation in graded grating phononic crystal slabs

Chen Jiujiu; Hongbo Zhang; Xu Han

Chinese︱Feedback︱Save this page

• Elaborating Academic Views 　　　　 • Exchanging Innovative Ideas
• Protecting Intellectual Properties 　　• Fast Sharing Science Papers

Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China

Home > Papers

Asymmetric Lamb Wave Propagation in graded grating phononic crystal slabs

Chen Jiujiu 1 * #,Hongbo Zhang 2,Xu Han 2

1.College of Mechanical and Vehicle Engineering, Hunan University, ChangSha 410082

2.College of Mechanical and Vehicle Engineering, Hunan University,410082

*Correspondence author

#Submitted by

Subject:

Funding: the Research Fund for the Doctoral Program of Higher Education under Grant （No.No. 2009016112009）

Opened online: 8 February 2013

Accepted by: none

Citation: Chen Jiujiu ,Hongbo Zhang,Xu Han.Asymmetric Lamb Wave Propagation in graded grating phononic crystal slabs[OL]. [ 8 February 2013] http://en.paper.edu.cn/en_releasepaper/content/4519637

The invention of electric diodes, which are the first devices to enable the rectification of current flux, marks the emergency of modern electronics, leads to worldwide revolutions in many aspects, and deeply changes our daily lives. Compared with electricity, the acoustic wave is an important form of classical wave that is more ubiquitous in nature and has much longer research history. In this paper, the unidirectional transmission of Lamb wave in low-frequency domains is realized by graded grating phononic crystal slabs. The transmission spectra of Lamb waves in this system can be obtained by the eigenmode matching theory (EMMT) method and the finite element (FE) method (COMSOL MULTIPHSICS). Significant differences between the acoustic transmission along two opposite directions can be observed. This exotic phenomenon stems from the threshold frequency of the fundamental antisymmetric Lamb mode conversion to the fundamental symmetric Lamb mode is different at the different locations of the acoustic diode. This realization should be potentially significant in helping design chip-scale directional phononic devices.

Keywords:Unidirectional transmission; Phononic crystal slabs; graded grating

For this paper

● PDF (0B)
● Revision 0 　　
● Print this paper
● Recommend this paper to a friend
● Add to my favorite list

Saved Papers

Please enter a name for this paper to be shown in your personalized Saved Papers list

Tags

Add yours

Related Papers

Statistics

PDF Downloaded	618
Bookmarked	0
Recommend	5
Comments	Array

Submit your papers

Alert Name:
Alerting to:
Authentication email will be sent to your email address in 24 hours
Frequency:
Email Message Format:	Plain text Graphical(HTML)

Complete the form below and we will recommend the selected titles to your friends on your behalf. * Indicates a required field.
Your name*:
Your email address*:
Recipient's name*:
Recipient's email address*:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find the page(s) useful.

Your name:
Your email address:
Recipient's name:
Recipient's email address:
(multiple recipient's names and email addresses should be separated with semicolons)
Your comments:	I thought you would find this page useful.

Disclaimer: This message was sent to your friend using the "Send it to a friend" facility on the Sciencepaper Online’ WWW site, http://www.paper.edu.cn/en. The Sciencepaper Online is not responsible for the content of this email, and anything said in this email does not necessarily reflect the Sciencepaper Online's views.

	Check out RSS, or use RSS reader to subscribe this item

Saved Papers