Acoustics Research

Dr. Siu-Kit Lau (Eddie)

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An impedance-mobility model of acoustic metamaterials

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A fast prediction method for the performance of stacked membrane-type metamaterials has been developed using An impedance-mobility model.  Matthew Blevins of the University of Nebraska-Lincoln introduced the method and a Matlab platform regarding this approach at the Spring 2015 meeting of Acoustical Society of America.  The work is collaborated and supervised by Dr. Siu-Kit Lau and Dr. Lily Wang.  Metamaterials are man-made materials to have properties that have not yet been found in nature. Membrane-type acoustic metamaterials have been proven to exhibit high low-frequency transmission loss despite their small thickness and light weight.  The efficient model based on the impedance-mobility can be used to facilitate design and optimization of stacked membrane-type acoustic metamaterials.

Abstract (metamaterials) of the presentation in the ASA meeting spring 2015 in Pittsburgh, PA

Abstract (metamaterials) of the presentation in the ASA meeting spring 2015 in Pittsburgh, PA

Carl Hart obtained his PhD

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Carl's hooding

Carl and Dr. Lau

Congratulations to Carl Hart, who successfully obtained his Ph.D. with his dissertation entitled “On a Combined Adaptive Tertrahederal Tracing and Edge Diffraction Model”.  His major advisor was Dr. Siu-Kit Lau. Carl is currently a post-doctoral research position with the US Army Corps Research Lab in Hanover, NH, where he’ll be working on outdoor noise under Dr. Keith Wilson.  He was hooded by Dr. Lau in the Nebraska night in the ASA meeting in Providence, RI on May 7.

Carl's hooding #1

Carl’s hooding by Dr. Lau