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Modal identification is one of the key steps in the process for ensuring structural integrity of new products. Although this process is typically carried out manually, both academic research centres and industries would benefit tremendously from an automated identification procedure. This master thesis investigates the opportunity for an automated impact testing process for the V2i company. pLSCF and pLSCE algorithms are first revised to allow for an automated poles detection. An automated experimental process is then set up using a robot-controlled laser Doppler vibrometer and an automated impact hammer. The set-up and revised algorithms are validated on an academic mono-bloc bladed-disk. L'identification modale est une étape cruciale du design de tous nouveaux produits afin de garantir leurs intégrités structurelles. Bien que cette identification se fasse généralement manuellement, les industries et centres de recherches auraient beaucoup à gagner d'un procédé automatisé. Ce travail a pour but de développer un procédé d'analyse modal à marteau d'impact pour l'entreprise V2i. Les algorithmes pLSCE et pLSCF sont tout d'abord revisités pour permettre une détection automatique des pôles du système. Un setup expérimental est ensuite mis en place à l'aide d'un vibromètre laser et d'un marteau automatique. Le setup et les algorithmes revisités sont validés sur un prototype académique d'une roue aubagée monobloc.

Impact testing --- pLSCF --- pLSCE --- Laser Doppler Vibrometer --- Experimental modal analysis --- Automated modal analysis --- Ingénierie, informatique & technologie > Ingénierie aérospatiale

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This Special Issue “Recent Advances and Future Trends in Pavement Engineering” was proposed and organized to present recent developments in the field of innovative pavement materials and engineering. The 12 articles and state-of-the-art reviews highlighted in this editorial are related to different aspects of pavement engineering, from recycled asphalt pavements to alkali-activated materials, from hot mix asphalt concrete to porous asphalt concrete, from interface bonding to modal analysis, and from destructive testing to non-destructive pavement monitoring by using fiber optics sensors. This Special Issue partly provides an overview of current innovative pavement engineering ideas that have the potential to be implemented in industry in the future, covering some recent developments.

laser Doppler vibrometer (LDV) --- pavements --- vibration measurement --- noise floor --- modal analysis --- peat --- asphalt --- rheology --- drainage --- wet process --- rutting --- hot mix asphalt --- recycled asphalt --- RAP gradation --- ignition test --- FTIR --- ESEM --- transverse profile analysis --- trenching --- coring --- hot-mix asphalt --- flow number --- effective binder content --- air voids --- voids in mineral aggregates --- voids filled with asphalt --- asphalt content --- fiber optics sensors (FOS) --- fiber Bragg grating (FBG) sensors --- falling weight deflectometer (FWD) --- permeable pavements --- porous asphalt concrete --- polymeric transparent binder --- synthetic aggregates --- urban pavements --- urban runoff --- hot mix asphalt dynamic modulus --- principal component analysis --- linear regression modeling --- artificial neural network --- receiver operating characteristic --- optimization --- complex modulus --- fatigue cracking --- permanent deformation --- thermal cracking resistance --- paving blocks --- alkali-activated materials --- waste powders --- recycled materials --- moisture damage --- surface free energy components --- cohesion --- binder–aggregate adhesion --- asphalt pavement --- interface bonding --- shear reaction modulus --- numerical analysis --- falling weight deflectometer --- FOS --- FBG

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The aim of this book is to collect the newest contributions by eminent authors in the field of NDT-SHM, both at the material and structure scale. It therefore provides novel insight at experimental and numerical levels on the application of NDT to a wide variety of materials (concrete, steel, masonry, composites, etc.) in the field of Civil Engineering and Architecture.

Technology: general issues --- pulsed eddy current --- ferromagnetic sample --- conductivity --- permeability --- non-destructive test --- impact-echo method --- tunnel void --- experimental model --- numerical simulation --- signal analysis --- transfer learning --- spectrogram analysis --- selecting samples --- non-destructive testing --- hammering sound --- regression algorithm --- Lamb wave --- microcracks testing --- multi-channel detection --- signal-to-noise ratio --- thin-walled tube --- damage detection --- cepstral analysis --- Structural Health Monitoring --- Machine Learning --- Teager-Kaiser Energy --- gammatone filter --- acoustic emission --- melting ice --- aviation --- fuel system --- acoustoelastic effect --- stress estimation --- surface waves --- weak anisotropy material --- damage assessment --- smart sensor --- magnetoelastic strip --- 3D printing --- additive manufacturing --- stress-strain relation --- nondestructive testing --- optical-radiation --- photoacoustic --- photothermal --- acoustic energy --- acoustic counts --- CFRP --- single lap joint --- joggled lap joints --- fractography --- classical acoustic nonlinearity --- constitutive behavior --- ultrasonic testing --- existing buildings --- seismic vulnerability assessment --- non-invasive experimental technics --- BIM models --- non-destructive techniques (NDT) --- historical buildings --- maintenance --- stone columns --- ultrasonic test --- impact test --- concrete --- impact-echo --- elastic wave --- SIBIE --- 3D visualization --- accelerometer --- laser doppler vibrometer --- remote sensing --- reinforced concrete --- four-point bending test --- structural health monitoring --- nondestructive testing techniques --- fiber optic sensors --- acoustic emission monitoring --- digital image correlation

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The aim of this book is to collect the newest contributions by eminent authors in the field of NDT-SHM, both at the material and structure scale. It therefore provides novel insight at experimental and numerical levels on the application of NDT to a wide variety of materials (concrete, steel, masonry, composites, etc.) in the field of Civil Engineering and Architecture.

Technology: general issues --- pulsed eddy current --- ferromagnetic sample --- conductivity --- permeability --- non-destructive test --- impact-echo method --- tunnel void --- experimental model --- numerical simulation --- signal analysis --- transfer learning --- spectrogram analysis --- selecting samples --- non-destructive testing --- hammering sound --- regression algorithm --- Lamb wave --- microcracks testing --- multi-channel detection --- signal-to-noise ratio --- thin-walled tube --- damage detection --- cepstral analysis --- Structural Health Monitoring --- Machine Learning --- Teager-Kaiser Energy --- gammatone filter --- acoustic emission --- melting ice --- aviation --- fuel system --- acoustoelastic effect --- stress estimation --- surface waves --- weak anisotropy material --- damage assessment --- smart sensor --- magnetoelastic strip --- 3D printing --- additive manufacturing --- stress-strain relation --- nondestructive testing --- optical-radiation --- photoacoustic --- photothermal --- acoustic energy --- acoustic counts --- CFRP --- single lap joint --- joggled lap joints --- fractography --- classical acoustic nonlinearity --- constitutive behavior --- ultrasonic testing --- existing buildings --- seismic vulnerability assessment --- non-invasive experimental technics --- BIM models --- non-destructive techniques (NDT) --- historical buildings --- maintenance --- stone columns --- ultrasonic test --- impact test --- concrete --- impact-echo --- elastic wave --- SIBIE --- 3D visualization --- accelerometer --- laser doppler vibrometer --- remote sensing --- reinforced concrete --- four-point bending test --- structural health monitoring --- nondestructive testing techniques --- fiber optic sensors --- acoustic emission monitoring --- digital image correlation