ScholarLens Back to search
2001•INTER-NOISE 2001 - ABSTRACTS FROM INTERNATIONAL CONGRESS AND EXHIBITION ON NOISE CONTROL ENGINEERINGRequires access

WHEEL/RAIL NOISE SEPARATION WITH MICROPHONE ARRAY MEASUREMENTS

Anders Nordborg, Alexander Martens, J Wedemann, L Willenbrink

Open publisher page 11 citations

Abstract

This paper discusses the possibilities to directly validate rail and wheel contributions to the total noise radiation, using a high-performing microphone array, consisting of 84 microphones and with a diameter of4 m. The paper also shows some results regarding noise reductions achieved with damped (Syope) wheels, resulting from microphone array measurements on a high-speed train. It is concluded that with this array, it is possible to decide .whether the wheel or the rail is the important source in a certain frequency band. To separate out rail noise from wheel noise at high frequencies, greater than or equal to 1.6 kHz, the S/N-ratio must be improved by reducing the microphone spacings. (A) For the covering abstract see ITRD E113232.

About this research paper

What this paper is about

This paper discusses the possibilities to directly validate rail and wheel contributions to the total noise radiation, using a high-performing microphone array, consisting of 84 microphones and with a diameter of4 m. The paper also shows some results regarding noise reductions achieved with damped (Syope) wheels, resulting from microphone array measurements on a high-speed train. It is concluded that with this array, it is possible to decide .whether the wheel or the rail is the important source in a certain frequency band. To separate out rail noise from wheel noise at high frequencies, greater than or equal to 1.6 kHz, the S/N-ratio must be improved by reducing the microphone spacings. (A) For the covering abstract see ITRD E113232.

Why it matters

OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

This paper discusses the possibilities to directly validate rail and wheel contributions to the total noise radiation, using a high-performing microphone array, consisting of 84 microphones and with a diameter of4 m. The paper also shows some results regarding noise reductions achieved with damped (Syope) wheels, resulting from microphone array measurements on a high-speed train. It is concluded that with this array, it is possible to decide .whether the wheel or the rail is the important source in a certain frequency band. To separate out rail noise from wheel noise at high frequencies, greater than or equal to 1.6 kHz, the S/N-ratio must be improved by reducing the microphone spacings. (A) For the covering abstract see ITRD E113232.

Key concepts: Microphone, Microphone array, Acoustics, Noise (video), Noise-canceling microphone, Engineering, Separation (statistics), Background noise

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
WHEEL/RAIL NOISE SEPARATION WITH MICROPHONE ARRAY MEASUREMENTS — Research Paper | ScholarLens