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Train pass-by noise source characterization and separation tools for cost-effective vehicle certification


Validated procedure for source characterization based on equivalent monopoles and tests involving generic sources.

Validated procedure for source characterization based on equivalent monopoles and tests involving generic sources.Specification of information required to define source strengths and directivity for implementation in the global noise modelling tool.

Project Quality Plan

Document with a set of project templates, explanations on the project management process, review process, quality checks, meeting organisation, which is communicated to all partners

State of the art, strategy for enhancing separation techniques.

In Roll2Rail a number of techniques were developed by the current partners for separating track and wheel noise components and these were evaluated in a field test. Based on the proposed requirements, strategies for enhancing each separation method will be defined by each partner. Hybrid methods combining more than one approach will also be considered.

Equivalent monopole source data for at least two selected sources.

The equivalent monopole method and the 3D imaging technique IBF described in T11 will be applied on a selected set at least two of real sources eg a traction motor a HVAC fan unit and a transformer The final selection should be decided by the complementary project S2RCFMCCA012019

Report on State of the art, strategy and requirements for new separation techniques

A number of methods for source separation were already applied in the past and have delivered results of different quality. The development of new techniques which present improvements and benefits in comparison to these techniques needs to be based on a detailed review of the state of the art.

Innovative separation techniques: theoretical description and validation testing campaign proposal.

Methods that are identified to be feasible in Task 21 will be adapted and improved Where necessary additional software implementation and tests are carried out

Feasibility study of new concepts and approaches

Document with the results of the feasibility study, including a brief description of all approaches, designs and methods considered with an assessment of strengths and weaknesses and a final recommendation for the two preferred approaches.

Measurement plan

Document with a complete preliminary description of the measurement campaigns (for WP1, WP2 and WP3), including locations, vehicles, (target) schedule and a detailed description of the measurements and associated requirements.

Data Management Plan

Document describing procedure to ensure the proper management of all data produced by and used by the partners. Final version.

Documented measurement plan and database of raw and processed data

Measurement campaigns will be planned and performed in cooperation with the complementary project S2RCFMCCA012019 seeking efficiencies by data sharing between partners and WPs and preselected methods

Estimation of uncertainties in the global noise modelling tool.

The results from Tasks 1113 will be implemented in the global modelling tool developed by ISVR in Acoutrain 15 and used to estimate uncertainties


Erweiterung der CLEANT-Methode zur Entfaltung bei Mikrofonarray-Messungen an Hochgeschwindigkeitszugen

Author(s): Mikolaj Czuchaj, Adam Kujawski, Ennes Sarradj
Published in: JAHRESTAGUNG FÜR AKUSTIK, 2021, Page(s) 789-791, ISBN 978-3-939296-18-8

Quantitative Charakterisierung von Schallquellen mit Mikrofonarrays bei der Vorbeifahrt von Zügen

Author(s): Mikolaj Czuchaj, Simon Jekosch, Adam Kujawski, Ennes Sarradj
Published in: Jahrestagung für Akustik, 2023, Page(s) 365-368, ISBN 978-3-939296-21-8
Publisher: Jahrestagung für Akustik

A Trainable Iterative Soft Thresholding Algorithm for Microphone Array Source Mapping

Author(s): Can Kayser, Adam Kujawski and Ennes Sarradj
Published in: Berlin Beamforming Conference, 2022, Page(s) 8-9
Publisher: Berlin Beamforming Conference

The influence of the vehicle body on the sound radiation from the rail

Author(s): Zhao, Dong, Thompson, David, Ntotsios, Evangelos, Cierco, Ester and Jansen, Erwin
Published in: 14th International Workshop on Railway Noise, Shanghai, China, 2022
Publisher: University of Southampton Institutional Repository

Effect of slit length on linear and non-linear acoustic transfer impedance of a micro-slit plate

Author(s): Alessia Aulitto, Avraham Hirschberg, Ines Lopez Arteaga and Esmée L.R.H. Buijssen
Published in: Acta Acustica, 2021, ISSN 2681-4617
Publisher: edp sciences
DOI: 10.1051/aacus/2021059

Material Selection Process for Acoustic and Vibration Applications Using the Example of a Plate Resonator

Author(s): Neubauer, M.; Schwaericke, F.; Radmann, V.; Sarradj, E.; Modler, N.; Dannemann, M.
Published in: Materials, 2022, ISSN 1996-1944
Publisher: MDPI Open Access Publishing
DOI: 10.3390/ma15082935

Fast grid-free strength mapping of multiple sound sources from microphone array data using a Transformer architecture

Author(s): Adam Kujawski; Ennes Sarradj
Published in: The Journal of the Acoustical Society of America, 2022, Page(s) 2543–2556, ISSN 0001-4966
Publisher: Acoustical Society of America
DOI: 10.1121/10.0015005

Frequency stop-band optimization in micro-slit resonant metamaterials

Author(s): Jan de Priester, Alessia Aulitto, Ines Lopez Arteaga
Published in: Applied Acoustics, 2022, ISSN 0003-682X
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.apacoust.2021.108552

Influence of geometry on acoustic end-corrections of slits in microslit absorbers

Author(s): Alessia Aulitto; Avraham Hirschberg; Ines Lopez Arteaga
Published in: The Journal of the Acoustical Society of America, 2021, Page(s) 3073–3085, ISSN 0001-4966
Publisher: Acoustical Society of America
DOI: 10.1121/10.0004826

Single Source Dataset

Author(s): Mikolaj Czuchaj
Published in: Zenodo, 2023
Publisher: Zenodo
DOI: 10.5281/zenodo.7801605

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