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The thirty-plus years of progress in the field of structural health monitoring (SHM) have left a paramount impact on our everyday lives. Be it for the monitoring of fixed- and rotary-wing aircrafts, for the preservation of the cultural and architectural heritage, or for the predictive maintenance of long-span bridges or wind farms, SHM has shaped the framework of many engineering fields. Given the current state of quantitative and principled methodologies, it is nowadays possible to rapidly and consistently evaluate the structural safety of industrial machines, modern concrete buildings, historical masonry complexes, etc., to test their capability and to serve their intended purpose. However, old unsolved problematics as well as new challenges exist. Furthermore, unprecedented conditions, such as stricter safety requirements and ageing civil infrastructure, pose new challenges for confrontation. Therefore, this Special Issue gathers the main contributions of academics and practitioners in civil, aerospace, and mechanical engineering to provide a common ground for structural health monitoring in dealing with old and new aspects of this ever-growing research field.

Technology: general issues --- dynamic characteristic --- GB-RAR --- super high-rise building --- displacement --- wheel flat --- real-time monitoring --- strain distribution characteristics --- multisensor array --- precise positioning --- noncontact remote sensing (NRS) --- optical flow algorithm --- structural health monitoring (SHM) --- uniaxial automatic cruise acquisition device --- noise robustness --- sensitivity analysis --- cross-modal strain energy --- damage detection --- subspace system identification --- data-driven stochastic subspace identification (SSI-DATA) --- covariance-driven stochastic subspace identification (SSI-COV) --- combined subspace system identification --- PRISMA --- vibration-based damage detection --- crack damage detection --- piezoelectric impedance --- piezoelectric admittance --- peak frequency --- Bayesian inference --- uncertainty quantification --- masonry structures --- seismic structural health monitoring --- Bouc–Wen model --- model calibration --- hysteretic system identification --- BOTDR --- CFRP sheet --- un-bonded position --- cover delamination --- interfacial de-bonding --- monitoring system --- pipeline --- health and structural integrity --- Particle Impact Damper --- adaptive-passive damping --- damping of vibrations --- experiments --- submerged floating tunnel --- deep neural network --- machine learning --- sensor optimization --- failure monitoring accuracy --- mooring line --- sigmoid function --- Adamax --- categorical cross-entropy --- bending test --- bridge --- “compression–softening” theory --- frequency --- inverse problem --- nondestructive testing (NDT) method --- prestressed concrete (PC) girder --- prestress force determination --- prestress loss --- vertical deflection measurement --- rail --- guided wave ultrasound --- broken rail detection --- rail diagnostics --- structural health monitoring --- non destructive testing --- shape sensing --- inverse Finite Element Method --- fiber optics --- full-field reconstruction --- Structural Health Monitoring --- extreme function theory --- non-destructive testing --- extreme value theory --- generalised extreme distribution --- n/a --- Bouc-Wen model --- "compression-softening" theory

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Modelling and simulation in acoustics is currently gaining importance. In fact, with the development and improvement of innovative computational techniques and with the growing need for predictive models, an impressive boost has been observed in several research and application areas, such as noise control, indoor acoustics, and industrial applications. This led us to the proposal of a special issue about “Modelling, Simulation and Data Analysis in Acoustical Problems”, as we believe in the importance of these topics in modern acoustics’ studies. In total, 81 papers were submitted and 33 of them were published, with an acceptance rate of 37.5%. According to the number of papers submitted, it can be affirmed that this is a trending topic in the scientific and academic community and this special issue will try to provide a future reference for the research that will be developed in coming years.

Research & information: general --- noise barrier --- insertion loss --- vehicle frequencies --- diffraction --- flow speed --- Analytical solutions --- FDTD --- EMATs --- beam directivity --- perforate tube silencer --- transmission loss (TL) --- pressure loss --- computational fluid dynamics (CFD) --- temperature --- air flow velocity --- graphical bilinear method --- seismic survey --- dynamic cone penetration test --- soil depth --- time-distance curve --- KZK equation --- fractional order derivative --- ultrasound hyperthermia --- HIFU --- acoustic simulation --- Kramers–Kronig relation --- stereo audio coding --- Principal Component Analysis (PCA) --- multi-frame --- Pyramid Vector Quantization (PVQ) --- bowel sound --- bowel motility --- automatic detection/evaluation --- power-normalized cepstral coefficients --- noncontact instrumentation --- acoustic localization --- cross array --- moving sound source --- discrete sampling --- error analysis --- open-air theatres --- acoustical measurements --- prediction models --- historical acoustics --- Direction of Arrival (DOA) --- time-frequency (TF) mask --- speech sparsity --- speech enhancement (SE) --- acoustic vector sensor (AVS) --- intelligent service robot --- voice generation --- multichannel electroglottograph --- larynx acoustics --- fingerprinting acoustic localization --- iterative interpolation --- K-Means clustering --- Two-stage matching --- Adjacent RPs --- dynamic tissue property --- Westervelt equation --- thermal damage zone --- submerged floating tunnel (SFT) --- mooring line --- coupled dynamics --- hydro-elastic responses --- wet natural frequencies --- mooring tension --- seismic excitation --- wave excitation --- seaquake --- thick annular circular plate --- Rayleigh integral --- finite element modeling --- rectangular and concentric stiffener patches --- taper ratio --- thickness variation --- MRI --- Zone Plates --- ultrasonic lenses --- piano playing --- vibrotactile feedback --- interaction --- musical performance --- auditory perception --- sensors --- actuators --- crack growth --- acoustic echo --- COSMO --- p-value --- l1-regularized RLS --- sparsity --- room impulse response --- total least squares --- regularization factor --- fluid-filled polyethylene (PE) pipeline --- noise control --- acoustic propagation --- cutoff phenomenon --- UWA communication --- channel modelling --- OFDM --- channel estimation --- simulation platform --- minimum variance distortionless response --- signal self-cancellation --- direction estimation --- underwater acoustic source --- spatial power spectrum --- cochlear implant --- coding strategy --- Fixed-Channel --- Channel-Picking --- vocoder simulation --- normal-hearing --- point mass --- parabolic thickness variation --- landmine detection --- lumped parameter model --- prodder --- resonance frequency --- noised-induced hearing loss --- powered surgical instruments --- ultrasonic aspirator --- transcanal endoscopic ear surgery --- balanced armature receiver --- lumped parameter method --- finite element method and Boundary element method --- focused transducer --- acoustic field --- nonuniform radiation distribution --- Bessel radiation distribution --- spherically curved uniform radiator --- rim radiation --- Lamb waves --- wooden constructions --- acoustics --- low frequency noise --- modelling --- ultrasonic guided waves --- SAFE --- rail defect detection --- mode excitation --- solid dielectrics --- acoustic emission --- artificial neural networks --- electrical treeing --- wavelets --- non-destructive testing --- high-voltage insulating systems --- boundary element method --- Helmholtz equation --- structural health monitoring --- mooring chain --- fatigue crack growth --- structural integrity --- n/a --- Kramers-Kronig relation

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Modelling and simulation in acoustics is currently gaining importance. In fact, with the development and improvement of innovative computational techniques and with the growing need for predictive models, an impressive boost has been observed in several research and application areas, such as noise control, indoor acoustics, and industrial applications. This led us to the proposal of a special issue about “Modelling, Simulation and Data Analysis in Acoustical Problems”, as we believe in the importance of these topics in modern acoustics’ studies. In total, 81 papers were submitted and 33 of them were published, with an acceptance rate of 37.5%. According to the number of papers submitted, it can be affirmed that this is a trending topic in the scientific and academic community and this special issue will try to provide a future reference for the research that will be developed in coming years.

noise barrier --- insertion loss --- vehicle frequencies --- diffraction --- flow speed --- Analytical solutions --- FDTD --- EMATs --- beam directivity --- perforate tube silencer --- transmission loss (TL) --- pressure loss --- computational fluid dynamics (CFD) --- temperature --- air flow velocity --- graphical bilinear method --- seismic survey --- dynamic cone penetration test --- soil depth --- time-distance curve --- KZK equation --- fractional order derivative --- ultrasound hyperthermia --- HIFU --- acoustic simulation --- Kramers–Kronig relation --- stereo audio coding --- Principal Component Analysis (PCA) --- multi-frame --- Pyramid Vector Quantization (PVQ) --- bowel sound --- bowel motility --- automatic detection/evaluation --- power-normalized cepstral coefficients --- noncontact instrumentation --- acoustic localization --- cross array --- moving sound source --- discrete sampling --- error analysis --- open-air theatres --- acoustical measurements --- prediction models --- historical acoustics --- Direction of Arrival (DOA) --- time-frequency (TF) mask --- speech sparsity --- speech enhancement (SE) --- acoustic vector sensor (AVS) --- intelligent service robot --- voice generation --- multichannel electroglottograph --- larynx acoustics --- fingerprinting acoustic localization --- iterative interpolation --- K-Means clustering --- Two-stage matching --- Adjacent RPs --- dynamic tissue property --- Westervelt equation --- thermal damage zone --- submerged floating tunnel (SFT) --- mooring line --- coupled dynamics --- hydro-elastic responses --- wet natural frequencies --- mooring tension --- seismic excitation --- wave excitation --- seaquake --- thick annular circular plate --- Rayleigh integral --- finite element modeling --- rectangular and concentric stiffener patches --- taper ratio --- thickness variation --- MRI --- Zone Plates --- ultrasonic lenses --- piano playing --- vibrotactile feedback --- interaction --- musical performance --- auditory perception --- sensors --- actuators --- crack growth --- acoustic echo --- COSMO --- p-value --- l1-regularized RLS --- sparsity --- room impulse response --- total least squares --- regularization factor --- fluid-filled polyethylene (PE) pipeline --- noise control --- acoustic propagation --- cutoff phenomenon --- UWA communication --- channel modelling --- OFDM --- channel estimation --- simulation platform --- minimum variance distortionless response --- signal self-cancellation --- direction estimation --- underwater acoustic source --- spatial power spectrum --- cochlear implant --- coding strategy --- Fixed-Channel --- Channel-Picking --- vocoder simulation --- normal-hearing --- point mass --- parabolic thickness variation --- landmine detection --- lumped parameter model --- prodder --- resonance frequency --- noised-induced hearing loss --- powered surgical instruments --- ultrasonic aspirator --- transcanal endoscopic ear surgery --- balanced armature receiver --- lumped parameter method --- finite element method and Boundary element method --- focused transducer --- acoustic field --- nonuniform radiation distribution --- Bessel radiation distribution --- spherically curved uniform radiator --- rim radiation --- Lamb waves --- wooden constructions --- acoustics --- low frequency noise --- modelling --- ultrasonic guided waves --- SAFE --- rail defect detection --- mode excitation --- solid dielectrics --- acoustic emission --- artificial neural networks --- electrical treeing --- wavelets --- non-destructive testing --- high-voltage insulating systems --- boundary element method --- Helmholtz equation --- structural health monitoring --- mooring chain --- fatigue crack growth --- structural integrity --- n/a --- Kramers-Kronig relation