@article{huang_jing_2017, title={Investigation of the effective density of arbitrarily shaped plate-type acoustic metamaterials without mass attached}, volume={74}, ISSN={["1878-433X"]}, DOI={10.1016/j.wavemoti.2017.07.003}, abstractNote={The effective densities of arbitrarily shaped plate-type acoustic metamaterials (AMMs) without mass attached are studied in this paper. Acoustic impedances of three different shaped plates, i.e. circle, triangle, and hexagon, are calculated by the meshless boundary method and the effective densities are calculated using the lumped model. To validate the accuracy of this framework, the numerical results are compared with the analytical solution as well as the finite element method (FEM) for circular plates and are compared with FEM for the other two shapes. In general, good agreements can be found provided that a sufficient number of edge points and collocation points are used in the meshless boundary method. For the triangular shape, some discrepancies are found at the low-frequency region and this might have been because of the sharp corners of the triangle. The framework studied in this paper can provide an accurate and efficient method for designing plate-type AMMs with an arbitrary shape.}, journal={WAVE MOTION}, author={Huang, Tai-Yun and Jing, Yun}, year={2017}, month={Nov}, pages={124–133} }
 @article{huang_shen_jing_2016, title={Membrane- and plate-type acoustic metamaterials}, volume={139}, ISSN={["1520-8524"]}, DOI={10.1121/1.4950751}, abstractNote={Over the past decade there has been a great amount of research effort devoted to the topic of acoustic metamaterials (AMMs). The recent development of AMMs has enlightened the way of manipulating sound waves. Several potential applications such as low-frequency noise reduction, cloaking, angular filtering, subwavelength imaging, and energy tunneling have been proposed and implemented by the so-called membrane- or plate-type AMMs. This paper aims to offer a thorough overview on the recent development of membrane- or plate-type AMMs. The underlying mechanism of these types of AMMs for tuning the effective density will be examined first. Four different groups of membrane- or plate-type AMMs (membranes with masses attached, plates with masses attached, membranes or plates without masses attached, and active AMMs) will be reviewed. The opportunities, limitations, and challenges of membrane- or plate-type AMMs will be also discussed.}, number={6}, journal={JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA}, author={Huang, Tai-Yun and Shen, Chen and Jing, Yun}, year={2016}, month={Jun}, pages={3239–3249} }
 @article{huang_shen_jing_2016, title={On the evaluation of effective density for plate- and membrane-type acoustic metamaterials without mass attached}, volume={140}, ISSN={["1520-8524"]}, DOI={10.1121/1.4960590}, abstractNote={The effective densities of plate- and membrane-type acoustic metamaterials (AMMs) without mass attached are studied theoretically and numerically. Three models, including the analytic model (based on the plate flexural wave equation and the membrane wave equation), approximate model (under the low frequency approximation), and the finite element method (FEM) model, are first used to calculate the acoustic impedance of square and clamped plates or membranes. The effective density is then obtained using the resulting acoustic impedance and a lumped model. Pressure transmission coefficients of the AMMs are computed using the obtained densities. The effect of the loss from the plate is also taken into account. Results from different models are compared and good agreement is found, particularly between the analytic model and the FEM model. The approximate model is less accurate when the frequency of interest is above the first resonance frequency of the plate or membrane. The approximate model, however, provides simple formulae to predict the effective densities of plate- or membrane-type AMMs and is accurate for the negative density frequency region. The methods presented in this paper are useful in designing AMMs for manipulating acoustic waves.}, number={2}, journal={JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA}, author={Huang, Tai-Yun and Shen, Chen and Jing, Yun}, year={2016}, month={Aug}, pages={908–916} }
 @article{sui_yan_huang_xu_yuan_jing_2015, title={A lightweight yet sound-proof honeycomb acoustic metamaterial}, volume={106}, ISSN={["1077-3118"]}, DOI={10.1063/1.4919235}, abstractNote={In this letter, a class of honeycomb acoustic metamaterial possessing lightweight and yet sound-proof properties is designed, theoretically proven, and then experimentally verified. It is here reported that the proposed metamaterial having a remarkably small mass per unit area at 1.3 kg/m2 can achieve low frequency (<500 Hz) sound transmission loss (STL) consistently greater than 45 dB. Furthermore, the sandwich panel which incorporates the honeycomb metamaterial as the core material yields a STL that is consistently greater than 50 dB at low frequencies. The proposed metamaterial is promising for constructing structures that are simultaneously strong, lightweight, and sound-proof.}, number={17}, journal={APPLIED PHYSICS LETTERS}, author={Sui, Ni and Yan, Xiang and Huang, Tai-Yun and Xu, Jun and Yuan, Fuh-Gwo and Jing, Yun}, year={2015}, month={Apr} }
 @article{sui_yan_huang_xu_yuan_jing_2015, title={Response to "Comment on 'A lightweight yet sound-proof honeycomb acoustic metamaterial'" [Appl. Phys. Lett. 107, 216101 (2015)]}, volume={107}, ISSN={["1077-3118"]}, DOI={10.1063/1.4936238}, abstractNote={First Page}, number={21}, journal={APPLIED PHYSICS LETTERS}, author={Sui, Ni and Yan, Xiang and Huang, Tai-Yun and Xu, Jun and Yuan, Fuh-Gwo and Jing, Yun}, year={2015}, month={Nov} }