Publications

Publications about Sound and Vibration

Specialists and experts of gfai tech GmbH and the research association GFaI e. V. regularly present their research results and solutions of the topics of sound and vibration at conferences and congresses. They are in close contact with their fellow experts worldwide and publish their studies and topics in a wide range of publications. This page provides a selection of them for you to download.

Publications about Acoustic Camera

Publications about Vibration Testing - Structural Dynamics

Publications Sound Localization - Acoustic Camera

Year	Publication
2024	AR-based setup of vibration sensors in test rigs Döbler, D., Ullrich, E., GFaI e. V. ISMA 2024
2024	On improving sound source localization in the wind tunnel Christof Puhle inter.noise 2024 Nantes
2024	On Improving CLEAN-SC Maps in the Wind Tunnel Christof Puhle, Andy Meyer, and Dirk Döbler GFaI e.V ISNVH 2024 Graz
2023	Partial sound source estimation with Helmholtz inverse beamforming as a part of pass-by noise virtualization Fabian Knappe, Volker Becker, Christof Puhle, Alexander Jahnke, Andy Meyer inter.noise 2023 Chiba - Greater Tokyo
2022	Estimation of partial sound sources with non-spherical directivity for analysis of pass-by noise in hemi-anechoic indoor test benches Christof Puhle, Volker Becker, Alexander Jahnke, Fabian Knappe BeBeC 2022
2022	Investigation of potential benefits and functionality of a vibroacoustic camera by combining results of a common beamforming and nearfield holography acoustic camera and a high-speed camera, allowing to visualize structural vibration Johannes Pehe, Daniel Herfert, Dirk Doebler, Christof Puhle inter.noise 2022 Glasgow
2021	Demonstration of a unified approach to beamforming Christof Puhle inter.noise Washington DC 2021
2021	Visualisation of train noise Sebastian Kümmritz, Ali Mohaved 27th International congress on sound and vibration Prague 2021
2020	Introduction to a new 3-dimensional method to visualize sound directivity based on a moving microphone array and beamforming Benjamin Vonrhein, Michael Kerscher, Gunnar Heilmann inter.noise Seoul 2020
2020	Spherical acoustical holography using planar microphone arrays Christof Puhle Berlin Beamforming Conference 2020
2020	Development of a standard approch for wind turbine measurements with an acoustic camera for optimisation purposes Sebastian Kümmritz, Ali Ali Movahed, Johannes Pehe Acoustic Forum Lyon 2020
2019	Modal analysis for damage detection in structures by non-contact measurements with a commercial microphone array Olaf Boelke, Jan Heimann, Joaquin Garcia ICA 2019 Aachen
2019	Experimental modal analysis based on non-contact measurements with a commercial mocrophone array Olaf Boelke, Jan Heimann ICSV26 Montreal 2019
2019	Ultrasound localization using beamforming Pablo Alloza, Sebastian Kümmritz inter.noise Madrid 2019
2019	Noise source localization in industrial facilities Pablo Alloza, Benjamin Vonrhein inter.noise Madrid 2019
2019	Noise localization using a low-cost microphone array Joaquin Garcia, Pablo Alloza inter.noise Madrid 2019
2019	The Acoustic Camera as a Tool for Room Acoustic Optimisation Sebastian Kümmritz, Michael Kerscher inter.noise Madrid 2019
2019	Spherical integration in acoustical holography Christof Puhle inter.noise Madrid 2019
2019	Noise Source Location in Wind Turbines Pablo Alloza, Benjamin Vonrhein, Olaf Bölke International Conference on Wind Turbine Noise Lisbon 2019
2018	Comparative Acoustic Examination of UAV Propellers Konrad Oeckel, Jan Heimann, Michael Kerscher, Dr. Sven Angermann, Gunnar Heilmann, Prof. Dr. Wolfgang Rüther-Kindel inter.noise 2018 Chicago 2018
2018	Application of rotational beamforming algorithms on fast rotating sound sources Michael kerscher, Jan Heimann, Dr. Christof Puhle, Konrad Oeckel, Christian Friebe and Dr. Ralph Krause Berlin Beamforming Conference 2018
2018	Investigations on beamforming in the wind tunnel using multiple microphone array measurements Lukas Kleine Waechter, Dirk Doebler, Joerg Ocker, Christof Puhle, Gert Herold Berlin Beamforming Conference 2018
2018	Microphone arrays in a wind tunnel environment with a reverberating floor Marie Pelz, Dirk Doebler, and Joerg Ocker Berlin Beamforming Conference 2018
2018	Investigations on noise sources on a contra-rotating axial fan with different modifications Ralph Krause, Christian Friebe, Michael Kerscher, Christof Puhle FAN Darmstadt 2018
2017	Acoustic sources distribution reconstruction from non-synchronous sound pressure measurements Sébastien Barré, Christof Puhle, Steffen Schmidt inter.noise Hong Kong 2017
2017	Use of the acoustic camera to accurately laocalise wind turbine noise sources and determine their Doppler shift Stuart Bradley, Michael Kerscher, Torben Mikkelsen 7th International Conference on Wind Turbine Noise Rotterdam 2017
2017	Dynamic beamforming using moving phased arrays with integrated 3D scanners Gunnar Heilmann, Dirk Doebler, Andy Meyer, Sébastien Barré inter.noise Hong Kong 2017
2017	Aspects of the use of MEMS microphones in phased array systems Patrick von Pflug, Detlef Krischker inter.noise Hong Kong 2017
2016	How acoustic camera measurements can help to increase the acceptance of wind turbines Michael Kerscher, Benjamin Vonrhein, Prof. Dr. Friedrich Ueberle, Dr. Dagmar Rokita WindEurope Summit Hamburg 2016
2016	Measurements and visualization of room impulse responses with spherical microphone arrays Michael Kerscher, Benjamin Vonrhein, Gunnar Heilmann, Sébastien Barré, Peter Weigel 29th Tonmeistertagung 2016
2016	On the sunflower spiral: acoustical holography results Christof Puhle, Sébastien Barré, Sean Hollands inter.noise Hamburg 2016
2016	Differenz-Beamforming als Methode zur Variantenanalyse Steffen Schmidt, Dirk Döbler DAGA Aachen 2016
2016	On 3D-Beamforming in the wind tunnel Dirk Doebler, Joerg Ocker, Dr. Christof Puhle Berlin Beamforming Conference 2016
2016	Analysis of sound field variations in concert halls via visualization and objective parameter comparison Sébastien Barré, Olaf Jaeckel, Ralf Bauer-Diefenbach Berlin Beamforming Conference 2016
2015	Room impulse response measurement and delay-and-sum beamforming, application to room and building acoustics Sébastien Barré, Natalia Manrique Ortiz EuroNoise Maastricht 2015
2015	The Acoustic Camera as a tool for machinery maintenance Magdalena Böck, Benjamin Vonrhein, Marc Mehlhaff, Ulrich Meyer Inter.noise 2015 San Francisco
2015	Correlation of high channel count beamforming measurement of a car in a wind tunnel using CLEAN-SC. Dirk Doebler, Christoph Puhle, Gunnar Heilmann inter.noise San Franciso 2015
2015	Visualization of small design modifications using differential beamforming Steffen Schmidt, Dirk Doebler inter.noise San Franciso 2015
2008	Time-domain Beamforming using 3D microphone arrays Andy Mayer, Dirk Doebler, Gunnar Heilmann Berlin Beamforming Conference 2008
2006	Transient Noise Source Localization Olaf Jaeckel, Gunnar Heilmann" EURONOISE 2006

Year	Publication
2022	Der Digitale Akustische Zwilling - Ableitung von Komponenten-Grenzwerten für die Außengeräusch-Homologation in der digitalen Phase des Fahrzeugentwicklungsprozesses Fabian Knappe, Christof Puhle, Joachim Rosskopf DAGA 2022, 48. Jahrestagung für Akustik, Stuttgart
2020	Schallfeldextrapolation mit Mikrofonarrays Volker Becker, Christof Puhle, Dirk Döbler DAGA Hannover 2020
2019	Berechnung und Darstellung von Schallquellen im dreidimensionalen Raum mit Mikrofonarrays und Beamforming Dirk Döbler, Sascha Jensen DAGA 2019 Rostock
2017	Untersuchungen zur Eignung des Einsatzes von preiswerten Mikrofonen in Mikrosystemtechnik (MEMS) in hochkanaligen Mikrofonarrays Patrick von Pflug DAGA Kiel 2017

Year	Publication
2018	Aplicaciones de localización de fuentes de ruido Pablo Alloza Frutos, Magdalena Boeck TecniAcustica Cadiz 2018
2018	Visualisación sonora en 3D Pablo Alloza Frutos, Benjamin Vonrhein TecniAcustica Cadiz 2018

Publications Vibration Testing - Structural Dynamics

Year	Publication
2024	Innovative Tools for Experimental Modal Analysis of Brake Discs Krause, J., Herfert, D., Gollnick, M., Conference Proceedings of the 42th IMAC
2023	Rotational Operating Deflection Shapes Analysis with High Speed Camera. Bogatikov, P., Herfert, D., Gollnick, M. In Computer Vision & Laser Vibrometry Volume 6: Proceedings oft the 41th IMAC
2022	Investigation of potential benefits and functionality of a vibroacoustic camera by combining results of a common beamforming and nearfield holography acoustic camera and a highspeed camera, allowing to visualize structural vibration (optical flow tracking) Pehe, J., Döbler, D., Herfert, D., Puhle, C. INTER-NOISE and NOISE-CON Congress and Conference Proceedings (Vol. 265, No. 3, pp. 4967-4974)
2022	Advanced Mesh Reconstruction with Low-Budget RGBD Hardware for Modal Analysis. Henning, K., Herfert, D. In Rotating Machinery, Optical Methods & Scanning LDV Methods, Volume 6: Proceedings of the 40th IMAC
2022	Acoustic Resonance Testing on Production Lines with the Smart Impulse Hammer WaveHitMAX Brauner, Y., Herfert, D., Lemke, A., Gollnick, M. In Sensors and Instrumentation, Aircraft/Aerospace and Dynamic Environments Testing, Volume 7: Proceedings of the 40th IMAC
2021	WaveHitMAX: Sensor-based system for bounce-free impulse excitation of macroscopic solid structures Lemke, A., Herfert, D. GFaI e.V
2021	Feature Based Monitoring Application for Automatic Crack Detection Using WaveImage Gollnick, M., Giese, P., Herfert, D. 39th International Modal Analysis Conference Orlando 2021
2021	WaveHit – The First Smart Impulse Hammer for Fully Automatic Impact Testing Herfert, D., Lemke, A. 39th International Modal Analysis Conference Orlando 2021
2021	WaveAR – A Real-Time Sensor Based Augmented Reality Implementation for Operating Deflection Shapes Herfert, D., Henning, K. 39th International Modal Analysis Conference Orlando 2021
2021	WaveImage Bridges the Gap Between Measurement and Simulation. An Application Example of how to Create a Modal Digital Twin Using FE Model Updating Koddenbrock, M., Heimann, J., Herfert, D., Pehe, J. 39th International Modal Analysis Conference Orlando 2021
2021	WaveImage – Order ODS for Rotating Machineries Urban, M., Herfert, D., Gollnick, M. 39th International Modal Analysis Conference Orlando 2021
2020	Early stage crack detection in mechanically joined steel/aluminium joints by condition monitoring Giese, P., Hein, D., Meschut, G., Gollnick, M., Herfert, D. Materials Testing 62/9
2020	Automatic Interpolation for the Animation of Unmeasured Nodes with Differential Geometric Methods Heimann, J., Henning, K., & Herfert, D. 38th International Modal Analysis Conference Houston 2020
2020	Automatic Modal Parameter Identification with Methods of Artificial Intelligence Gollnick, M., Heimann, J., & Herfert, D. 38th International Modal Analysis Conference Houston 2020
2015	Development and Application of a long and short term monitoring software system with a smart sensor network. Herfert, D., Gollnick, M., Schmidt, T., Büttner, A.; 6th International Operational Modal Analysis Conference IOMAC Gijón 2015

Year	Publication
2023	Schwingungskamera zur Bestimmung von Humanschwingungen. Bogatikov, P., Urban, M., Herfert, D. 9 VDI-Fachtagung (pp. 167-177), VDI Verlag GmbH. ISBN: 978-3-18-092411-3
2023	Innovative Werkzeuge zur Eigenfrequenzmessung und Eigenformanalyse von Bremsscheiben. Herfert, D., Krause, J., Gollnick, M., Henning, K. In Schwingungen 2023, 4. VDI-Fachtagung (pp. 253-267), VDI Verlag GmbH. ISBN: 978-3-18-092429-8
2023	Der Klang alter (2-Takt-)Motorräder – Teil IV Wagner, U., Holstein, P., Gollnik, M., Herfert, D., Bogatikov, P. DAGA 2023
2022	Schwingungskamera für Industrieanwendungen. Jedes Bildpixel ein Sensor GFaI In Innovation & Markt 29 (3/2022), S. 5.
2019	Modal Analysis for damage detection in structures by non-contact measurements with a commercial microphone array Olaf Bölke, Jan Heimann, Joaquin Garcia ICA 2019 Aachen
2019	Experimentelle Validierung der Model Updating Komponente der Software WaveImage unter zusätzlicher Berücksichtigung von Temperaturveränderungen Herfert, D., Heimann, J. DAGA 2019, Tagungsband
2018	Gegenüberstellung und Validierung unterschiedlicher Arten der Anregung zur Modalanalyse Herfert, D. DAGA 2018, Tagungsband

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Products

Acoustic Camera

Vibration Testing

Publications

AR-based setup of vibration sensors in test rigs

On improving sound source localization in the wind tunnel

On Improving CLEAN-SC Maps in the Wind Tunnel

Partial sound source estimation with Helmholtz inverse beamforming as a part of pass-by noise virtualization

Estimation of partial sound sources with non-spherical directivity for analysis of pass-by noise in hemi-anechoic indoor test benches

Investigation of potential benefits and functionality of a vibroacoustic camera by combining results of a common beamforming and nearfield holography acoustic camera and a high-speed camera, allowing to visualize structural vibration

Demonstration of a unified approach to beamforming

Visualisation of train noise

Introduction to a new 3-dimensional method to visualize sound directivity based on a moving microphone array and beamforming

Spherical acoustical holography using planar microphone arrays

Development of a standard approch for wind turbine measurements with an acoustic camera for optimisation purposes

Modal analysis for damage detection in structures by non-contact measurements with a commercial microphone array

Experimental modal analysis based on non-contact measurements with a commercial mocrophone array

Ultrasound localization using beamforming

Noise source localization in industrial facilities

Noise localization using a low-cost microphone array

The Acoustic Camera as a Tool for Room Acoustic Optimisation

Spherical integration in acoustical holography

Noise Source Location in Wind Turbines

Comparative Acoustic Examination of UAV Propellers

Application of rotational beamforming algorithms on fast rotating sound sources

Investigations on beamforming in the wind tunnel using multiple microphone array measurements

Microphone arrays in a wind tunnel environment with a reverberating floor

Investigations on noise sources on a contra-rotating axial fan with different modifications

Acoustic sources distribution reconstruction from non-synchronous sound pressure measurements

Use of the acoustic camera to accurately laocalise wind turbine noise sources and determine their Doppler shift

Dynamic beamforming using moving phased arrays with integrated 3D scanners

Aspects of the use of MEMS microphones in phased array systems

How acoustic camera measurements can help to increase the acceptance of wind turbines

Measurements and visualization of room impulse responses with spherical microphone arrays

On the sunflower spiral: acoustical holography results

Differenz-Beamforming als Methode zur Variantenanalyse

On 3D-Beamforming in the wind tunnel

Analysis of sound field variations in concert halls via visualization and objective parameter comparison

Room impulse response measurement and delay-and-sum beamforming, application to room and building acoustics

The Acoustic Camera as a tool for machinery maintenance

Correlation of high channel count beamforming measurement of a car in a wind tunnel using CLEAN-SC.

Visualization of small design modifications using differential beamforming

Time-domain Beamforming using 3D microphone arrays

Transient Noise Source Localization

Der Digitale Akustische Zwilling - Ableitung von Komponenten-Grenzwerten für die Außengeräusch-Homologation in der digitalen Phase des Fahrzeugentwicklungsprozesses

Schallfeldextrapolation mit Mikrofonarrays

Berechnung und Darstellung von Schallquellen im dreidimensionalen Raum mit Mikrofonarrays und Beamforming

Untersuchungen zur Eignung des Einsatzes von preiswerten Mikrofonen in Mikrosystemtechnik (MEMS) in hochkanaligen Mikrofonarrays

Aplicaciones de localización de fuentes de ruido

Visualisación sonora en 3D

Innovative Tools for Experimental Modal Analysis of Brake Discs

Rotational Operating Deflection Shapes Analysis with High Speed Camera.

Investigation of potential benefits and functionality of a vibroacoustic camera by combining results of a common beamforming and nearfield holography acoustic camera and a highspeed camera, allowing to visualize structural vibration (optical flow tracking)

Advanced Mesh Reconstruction with Low-Budget RGBD Hardware for Modal Analysis.

Acoustic Resonance Testing on Production Lines with the Smart Impulse Hammer WaveHitMAX

WaveHitMAX: Sensor-based system for bounce-free impulse excitation of macroscopic solid structures

Feature Based Monitoring Application for Automatic Crack Detection Using WaveImage

WaveHit – The First Smart Impulse Hammer for Fully Automatic Impact Testing

WaveAR – A Real-Time Sensor Based Augmented Reality Implementation for Operating Deflection Shapes

WaveImage Bridges the Gap Between Measurement and Simulation. An Application Example of how to Create a Modal Digital Twin Using FE Model Updating

WaveImage – Order ODS for Rotating Machineries

Early stage crack detection in mechanically joined steel/aluminium joints by condition monitoring

Automatic Interpolation for the Animation of Unmeasured Nodes with Differential Geometric Methods

Automatic Modal Parameter Identification with Methods of Artificial Intelligence

Development and Application of a long and short term monitoring software system with a smart sensor network.

Schwingungskamera zur Bestimmung von Humanschwingungen.

Innovative Werkzeuge zur Eigenfrequenzmessung und Eigenformanalyse von Bremsscheiben.

Der Klang alter (2-Takt-)Motorräder – Teil IV

Schwingungskamera für Industrieanwendungen. Jedes Bildpixel ein Sensor

Modal Analysis for damage detection in structures by non-contact measurements with a commercial microphone array

Experimentelle Validierung der Model Updating Komponente der Software WaveImage unter zusätzlicher Berücksichtigung von Temperaturveränderungen

Gegenüberstellung und Validierung unterschiedlicher Arten der Anregung zur Modalanalyse

Products

Acoustic Camera

Vibration Testing

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