Abstract
To introduce a new maglev train systems in modern Germany it is important to know its sound emission. Conventional sound measurements were done on the maglev train TRANSRAPID 07 (TR07) to get all the values that are important for planning a new line. Furthermore a microphone array equipment was used to detect the dominant sound sources and their positions on the surface of the train. In a second step the shape was optimazed based on the acoustical investigations. The changes were made especially in the lower part of the bow. This configuration was measured again; the reduction of the noise emission was 3 dB(A) for the changed vehicle. As an example for the low sound emissions the planned schedule for the in service trains of the link between Hamburg and Berlin is reflected on the german regulations for the sound immissions. The result is that there is nearly no need of sound barriers. To use a speed of 200 km/h within the cities a distance of 16 m from the centreline to an immission point is needed. Outside the cities speeds of 400 km/h are possible for a distance of more than 53 m during the nighttime and of more
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Schmitz, K P;
[1]
Wolters, C
[1]
- Industrieanlagen-Betriebsgesellschaft mbH, Magnetbahn-Versuchsanlage, Lathen/Ems (Germany)
Citation Formats
Schmitz, K P, and Wolters, C.
Reducing the sound emission of TR 07 and effects on the German regulation ``Schall-Transrapid``.
Germany: N. p.,
1995.
Web.
Schmitz, K P, & Wolters, C.
Reducing the sound emission of TR 07 and effects on the German regulation ``Schall-Transrapid``.
Germany.
Schmitz, K P, and Wolters, C.
1995.
"Reducing the sound emission of TR 07 and effects on the German regulation ``Schall-Transrapid``."
Germany.
@misc{etde_412484,
title = {Reducing the sound emission of TR 07 and effects on the German regulation ``Schall-Transrapid``}
author = {Schmitz, K P, and Wolters, C}
abstractNote = {To introduce a new maglev train systems in modern Germany it is important to know its sound emission. Conventional sound measurements were done on the maglev train TRANSRAPID 07 (TR07) to get all the values that are important for planning a new line. Furthermore a microphone array equipment was used to detect the dominant sound sources and their positions on the surface of the train. In a second step the shape was optimazed based on the acoustical investigations. The changes were made especially in the lower part of the bow. This configuration was measured again; the reduction of the noise emission was 3 dB(A) for the changed vehicle. As an example for the low sound emissions the planned schedule for the in service trains of the link between Hamburg and Berlin is reflected on the german regulations for the sound immissions. The result is that there is nearly no need of sound barriers. To use a speed of 200 km/h within the cities a distance of 16 m from the centreline to an immission point is needed. Outside the cities speeds of 400 km/h are possible for a distance of more than 53 m during the nighttime and of more than 23 m during the daytime. (orig.)}
place = {Germany}
year = {1995}
month = {Dec}
}
title = {Reducing the sound emission of TR 07 and effects on the German regulation ``Schall-Transrapid``}
author = {Schmitz, K P, and Wolters, C}
abstractNote = {To introduce a new maglev train systems in modern Germany it is important to know its sound emission. Conventional sound measurements were done on the maglev train TRANSRAPID 07 (TR07) to get all the values that are important for planning a new line. Furthermore a microphone array equipment was used to detect the dominant sound sources and their positions on the surface of the train. In a second step the shape was optimazed based on the acoustical investigations. The changes were made especially in the lower part of the bow. This configuration was measured again; the reduction of the noise emission was 3 dB(A) for the changed vehicle. As an example for the low sound emissions the planned schedule for the in service trains of the link between Hamburg and Berlin is reflected on the german regulations for the sound immissions. The result is that there is nearly no need of sound barriers. To use a speed of 200 km/h within the cities a distance of 16 m from the centreline to an immission point is needed. Outside the cities speeds of 400 km/h are possible for a distance of more than 53 m during the nighttime and of more than 23 m during the daytime. (orig.)}
place = {Germany}
year = {1995}
month = {Dec}
}