@inproceedings{HallHeroldGeyeretal., author = {Hall, Philipp and Herold, Gert and Geyer, Thomas and Sarradj, Ennes}, title = {Vergleich verschiedener Methoden zur Schallleistungsbestimmung von Maschinenkomponenten}, series = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, booktitle = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V. (DEGA)}, address = {Berlin}, isbn = {978-3-939296-12-6}, pages = {564 -- 567}, language = {de} } @inproceedings{KislerSarradj, author = {Kisler, Roman and Sarradj, Ennes}, title = {Modellierung der Schalld{\"a}mpfung mehrschichtiger Plattenresonatoren in Str{\"o}mungskan{\"a}len}, series = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, booktitle = {Fortschritte der Akustik, 43. Deutsche Jahrestagung f{\"u}r Akus tik, 6.-9. M{\"a}rz 2017 in Kiel}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V. (DEGA)}, address = {Berlin}, isbn = {978-3-939296-12-6}, pages = {1545 -- 1548}, language = {de} } @misc{GeyerKampsSarradjetal., author = {Geyer, Thomas and Kamps, Laura and Sarradj, Ennes and Br{\"u}cker, Christoph}, title = {Passive Control of the Vortex Shedding Noise of a Cylinder at Low Reynolds Numbers Using Flexible Flaps}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3015)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3015)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{MoreauGeyerDoolanetal., author = {Moreau, Danielle J. and Geyer, Thomas and Doolan, Con and Sarradj, Ennes}, title = {Camber Effects on the Tonal Noise and Flow Characteristics of a Wall-mounted Finite Airfoil}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3172)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3172)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{KampsBrueckerGeyeretal., author = {Kamps, Laura and Br{\"u}cker, Christoph and Geyer, Thomas and Sarradj, Ennes}, title = {Airfoil Self Noise Reduction at Low Reynolds Numbers Using a Passive Flexible Trailing Edge}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3496)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3496)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{SarradjHeroldSijtsmaetal., author = {Sarradj, Ennes and Herold, Gert and Sijtsma, Pieter and Merino-Martinez, Roberto and Geyer, Thomas and Bahr, Christopher and Porteous, Ric and Moreau, Danielle J. and Doolan, Con}, title = {A Microphone Array Method Benchmarking Exercise using Synthesized Input Data}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3719)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-3719)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{HeroldGeyerSarradj, author = {Herold, Gert and Geyer, Thomas and Sarradj, Ennes}, title = {Comparison of Inverse Deconvolution Algorithms for High-resolution Aeroacoustic Source Characterization}, series = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-4177)}, journal = {23rd AIAA/CEAS Aeroacoustics Conference 2017, Denver, USA, 5 June - 9 June 2017, (AIAA 2017-4177)}, publisher = {AIAA}, address = {Reston, Va}, isbn = {978-1-62410-504-3}, language = {en} } @misc{GeyerClausHalletal., author = {Geyer, Thomas and Claus, Vanessa and Hall, Philipp and Sarradj, Ennes}, title = {Silent Owl Flight: The Effect of the Leading Edge Comb}, series = {International Journal of Aeroacoustics}, volume = {16}, journal = {International Journal of Aeroacoustics}, number = {3}, issn = {2048-4003}, pages = {115 -- 134}, language = {en} } @misc{GeyerSchulzThuermeretal., author = {Geyer, Thomas and Schulz, Adrian and Th{\"u}rmer, Konrad and Sarradj, Ennes and Stapel, Jennifer}, title = {Schallemission wasserwirtschaftlicher Anlagen}, series = {L{\"a}rmbek{\"a}mpfung}, journal = {L{\"a}rmbek{\"a}mpfung}, number = {3}, issn = {1436-4999}, pages = {99 -- 103}, language = {de} } @inproceedings{MoreauGeyerDoolanetal., author = {Moreau, Danielle J. and Geyer, Thomas and Doolan, Con and Sarradj, Ennes}, title = {Influence of Camber on Wall-Mounted Finite Airfoil Tonal Noise Generation}, series = {4th Symposium on Fluid-Structure-Sound Interactions and Control, Tokio, 2017}, booktitle = {4th Symposium on Fluid-Structure-Sound Interactions and Control, Tokio, 2017}, publisher = {Springer}, address = {Singapore}, isbn = {978-981-10-7542-1}, pages = {337 -- 342}, language = {en} } @misc{GeyerPoppeSarradj, author = {Geyer, Thomas and Poppe, Willi and Sarradj, Ennes}, title = {Measurement of flow noise generation and pressure loss of nets and screens}, series = {Applied Acoustics}, volume = {134}, journal = {Applied Acoustics}, issn = {0003-682X}, doi = {10.1016/j.apacoust.2018.01.008}, pages = {69 -- 74}, language = {en} } @misc{HenkeSarradjLanghof, author = {Henke, Anna-Sophia and Sarradj, Ennes and Langhof, Carsten}, title = {Driving-point mobility and sound insulation of structured sheet metal}, series = {Applied Acoustics}, volume = {136}, journal = {Applied Acoustics}, issn = {0003-682X}, pages = {113 -- 122}, language = {en} } @misc{HoeltgenBreussHeroldetal., author = {Hoeltgen, Laurent and Breuß, Michael and Herold, Gert and Sarradj, Ennes}, title = {Sparse ℓ1 regularisation of matrix valued models for acoustic source characterisation}, series = {Optimization and Engineering}, volume = {19}, journal = {Optimization and Engineering}, number = {1}, issn = {1389-4420}, doi = {10.1007/s11081-017-9357-2}, pages = {39 -- 70}, abstract = {We present a strategy for the recovery of a sparse solution of a common problem in acoustic engineering, which is the reconstruction of sound source levels and locations applying microphone array measurements. The considered task bears similarities to the basis pursuit formalism but also relies on additional model assumptions that are challenging from a mathematical point of view. Our approach reformulates the original task as a convex optimisation model. The sought solution shall be a matrix with a certain desired structure. We enforce this structure through additional constraints. By combining popular splitting algorithms and matrix differential theory in a novel framework we obtain a numerically efficient strategy. Besides a thorough theoretical consideration we also provide an experimental setup that certifies the usability of our strategy. Finally, we also address practical issues, such as the handling of inaccuracies in the measurement and corruption of the given data. We provide a post processing step that is capable of yielding an almost perfect solution in such circumstances.}, language = {en} } @inproceedings{JekoschSarradjHeroldetal., author = {Jekosch, Simon and Sarradj, Ennes and Herold, Gert and Geyer, Thomas}, title = {Comparison of different solvers for general inverse beamforming algorithms for highresolution aeroacoustic source characterization}, series = {7th Berlin Beamforming Conference, BeBeC}, booktitle = {7th Berlin Beamforming Conference, BeBeC}, pages = {10}, language = {en} } @inproceedings{KislerMaterneGeyeretal., author = {Kisler, Roman and Materne, Daniel and Geyer, Thomas and Sarradj, Ennes}, title = {Modularer Versuchsstand zur Charakterisierung von Plattenschalld{\"a}mpfern}, series = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, address = {Berlin}, pages = {441 -- 444}, language = {de} } @inproceedings{SchneehagenSarradjGeyer, author = {Schneehagen, Erik W. and Sarradj, Ennes and Geyer, Thomas}, title = {Numerische Simulation des Str{\"o}mungsger{\"a}usches eines wandb{\"u}ndigen Zylinders}, series = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, address = {Berlin}, pages = {1001 -- 1004}, language = {de} } @inproceedings{SarradjHeroldGeyer, author = {Sarradj, Ennes and Herold, Gert and Geyer, Thomas}, title = {Vergleich verschiedener Mikrofonarray-Verfahren anhand synthetischer Daten}, series = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, address = {Berlin}, pages = {1391 -- 1394}, language = {de} } @inproceedings{GeyerMoreauSarradjetal., author = {Geyer, Thomas and Moreau, Danielle J. and Sarradj, Ennes and Doolan, Con}, title = {Zur Schallentstehung an dreidimensionalen wandgebundenen Tragfl{\"u}gelprofilen}, series = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018, 44. Jahrestagung f{\"u}r Akustik, 19.-22. M{\"a}rz 2018 in M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik}, address = {Berlin}, pages = {1587 -- 1590}, language = {de} }