81 citations · 321 across the 14 of their papers we have counts for
15 papers
A deep dive into Tollmien-Schlichting wave control via passive wall deformations: The battle between local and downstream stabilization, lessons learned, and implications for phononic subsurfaces
H. Yousef, H. Hassan, I. Roy +3
A decade ago, a landmark study on flow control via subsurface phonons transformed our understanding of fluid-structural interactions, compelling us to reimagine ways by which to su…
Mechanical intelligence via fully reconfigurable elastic neuromorphic metasurfaces
M. Moghaddaszadeh, M. Mousa, A. Aref +1
The ability of mechanical systems to perform basic computations has gained traction over recent years, providing an unconventional alternative to digital computing in off grid, low…
The role of frequency and impedance contrasts in bandgap closing and formation patterns of axially-vibrating phononic crystals
Hasan B. Al Ba'ba'a, Mostafa Nouh
Bandgaps, or frequency ranges of forbidden wave propagation, are a hallmark of Phononic Crystals (PnCs). Unlike their lattice counterparts, PnCs taking the form of continuous struc…
Theory of Truncation Resonances in Continuum Rod-based Phononic Crystals with Generally Asymmetric Unit Cells
Hasan B. Al Ba'ba'a, Carson L. Willey, Vincent W. Chen +2
Phononic crystals exhibit Bragg bandgaps, frequency regions within which wave propagation is forbidden. In solid continua, bandgaps are the outcome of destructive interferences res…
Conceptual Design of Cellular Auxetic Systems with Passive Adaptation to Loading
Joshua Prendergast, Manaswin Oddiraju, Mostafa Nouh +1
Auxetics refer to a class of engineered structures which exhibit an overall negative Poisson's ratio. These structures open up various potential opportunities in impact resistance,…
Complex Spatiotemporal Modulations and Non-Hermitian Degeneracies in -Symmetric Phononic Materials
M. Moghaddaszadeh, M. A. Attarzadeh, A. Aref +1
Unraveling real eigenfrequencies in non-Hermitian -symmetric Hamiltonians has opened new avenues in quantum physics, photonics, and most recently, phononics. However,…
Efficient Training of Transfer Mapping in Physics-Infused Machine Learning Models of UAV Acoustic Field
Rayhaan Iqbal, Amir Behjat, Revant Adlakha +3
Physics-Infused Machine Learning (PIML) architectures aim at integrating machine learning with computationally-efficient, low-fidelity (partial) physics models, leading to improved…
Efficient Inverse Design of 2D Elastic Metamaterial Systems Using Invertible Neural Networks
Manaswin Oddiraju, Amir Behjat, Mostafa Nouh +1
Locally resonant elastic metamaterials (LREM) can be designed, by optimizing the geometry of the constituent self-repeating unit cells, to potentially damp out vibration in selecte…
Widening, Transition and Coalescence of Local Resonance Band Gaps in Multi-resonator Acoustic Metamaterials: From Unit Cells to Finite Chains
A. Stein, M. Nouh, T. Singh
Local resonance band gaps in acoustic metamaterials are widely known for their strong attenuation yet narrow frequency span. The latter limits the practical ability to implement su…
Frequency Selective Wave Beaming in Nonreciprocal Acoustic Phased Arrays
R. Adlakha, M. Moghaddaszadeh, M. A. Attarzadeh +2
Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters.…
Metamodel Based Forward and Inverse Design for Passive Vibration Suppression
Amir Behjat, Manaswin Oddiraju, Mohammad Ali Attarzadeh +2
Aperiodic metamaterials represent a class of structural systems that are composed of different building blocks (cells), instead of a self-repeating chain of the same unit cells. Op…
Emergence of Pseudo-Phononic Gaps in Periodically Architected Pendulums
H. Al Ba'ba'a, J. Callanan, M. Nouh
Rejection of unmitigated vibrational disturbances represents an ongoing dilemma in complex linkage systems. In this work, we present an inherent and self-reliant vibration isolatio…
Generalized Analysis of Elastic Wave Dispersion Asymmetries in Moving Periodic Media
M. A. Attarzadeh, M. Nouh
This work presents a generalized physical interpretation of unconventional dispersion asymmetries associated moving elastic solids. By shifting the notion from systems with time-va…
On the wave dispersion and non-reciprocal power flow in space-time traveling acoustic metamaterials
M. A. Attarzadeh, H. Al Ba'ba'a, M. Nouh
This note analytically investigates non-reciprocal wave dispersion in locally resonant acoustic metamaterials. Dispersion relations associated with space-time varying modulations o…
Formation of Local Resonance Band Gaps in Finite Acoustic Metamaterials: A Closed-form Transfer Function Model
H. Al Ba'ba'a, M. Nouh, T. Singh
The objective of this paper is to use transfer functions to comprehend the formation of band gaps in locally resonant acoustic metamaterials. Identifying a recursive approach for a…