Directional and band-gap behavior of periodic grid-like structures

Sang Min Jeong; Massimo Ruzzene

doi:10.1117/12.540352

29 July 2004 Directional and band-gap behavior of periodic grid-like structures

Sang Min Jeong, Massimo Ruzzene

Proceedings Volume 5386, Smart Structures and Materials 2004: Damping and Isolation; (2004) https://doi.org/10.1117/12.540352
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

This paper investigates the wave propagation characteristics of two-dimensional periodic lattice structures. Periodic structures in general feature unique wave propagation characteristics, whereby waves are allowed to propagate only in specific frequency bands. Two-dimensional periodic structures complement this feature with a low frequency directional behavior. The combination of these unique characteristics makes two-dimensional periodic structures ideal candidates for the design of pass-band directional mechanical filters. A rectangular lattice configuration is here considered. The wave attenuation properties of the lattice are demonstrated and their sensitivity with respect to geometry changes is explored. An optimization problem is formulated by considering a set of geometric features as design variables, and where the width of the attenuation zones and angular range of propagation at low frequencies are the objective functions. The identified optimal configuration show the combined properties of the considered assembly and the effectiveness of the analysis procedure. The experimental validation of the presented results represents a natural development of the current effort.

Citation Download Citation

Sang Min Jeong and Massimo Ruzzene "Directional and band-gap behavior of periodic grid-like structures", Proc. SPIE 5386, Smart Structures and Materials 2004: Damping and Isolation, (29 July 2004); https://doi.org/10.1117/12.540352

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available