Wave propagation in beams with periodic arrays of airfoil-shaped resonating units

F Casadei, K Bertoldi - Journal of Sound and Vibration, 2014 - Elsevier
This paper presents an analytical and numerical study on the dispersion properties of an
Euler–Bernoulli beam immersed in a steady fluid flow with periodic arrays of airfoil-shaped …

Characteristics of band gap and low-frequency wave propagation of mechanically tunable phononic crystals with scatterers in periodic porous elastomeric matrices

S Ning, D Chu, F Yang, H Jiang… - Journal of Applied …, 2021 - asmedigitalcollection.asme.org
The characteristics of passive responses and fixed band gaps of phononic crystals (PnCs)
limit their possible applications. For overcoming this shortcoming, a class of tunable PnCs …

Decentralized complex envelope controller for ASAC by virtual mechanical impedances

M Michau, P Micheau, R Boulandet… - 2014 IEEE/ASME …, 2014 - ieeexplore.ieee.org
The problem of Active Structural Acoustic Control (ASAC) is to attenuate the radiated sound
power by energy injection using structural actuators to modify deflection shapes. Collocated …

Optimal shunt parameters for maximising wave attenuation with periodic piezoelectric patches

L Junyi, DS Balint - Journal of Intelligent Material Systems …, 2017 - journals.sagepub.com
Elastic metamaterials, which have huge potential in wave guiding and attenuation
applications, can be built from structures with periodic piezoelectric patch arrays. Passive …