A Hybrid Active/Passive Exhaust Noise Control System (APECS) for Locomotives

Remington, S. J.; Knight, S.; Hanna, D.; Rowley, C.; BBN Systems and Technologies

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A Hybrid Active/Passive Exhaust Noise Control System (APECS) for Locomotives

2002-08-01
By Remington, S. J. ; Knight, S. ; Hanna, D. ; ...

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English

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Creators:

Remington, S. J. ; Knight, S. ; Hanna, D. ; Rowley, C.

Remington, S. J. ; Knight, S. ; Hanna, D. ; Rowley, C. Less -
Corporate Creators:

BBN Systems and Technologies
Corporate Contributors:

United States. Federal Railroad Administration
Subject/TRT Terms:

[+]

Control Systems Environment Exhaust System Components Locomotives Noise Control Passenger Trains Railroads
Publication/ Report Number:

DOT/FRA/RDV-03/03
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

00969201
Edition:

Final Report Dec. 1995-Sept. 2002
Corporate Publisher:

United States. Federal Railroad Administration
Abstract:

This report documents the analysis and development of an Active/Passive Exhaust Noise Control System (APECS) for railroad passenger locomotives that could provide at least 10 dBA noise reduction. Based on preliminary analyses and tests on actual locomotives in 1995 and 1996, a combination active roof-mounted system and a passive exhaust silencer were designed. The roof-mounted system and a passive exhaust silencer were designed. The roof mounted system consisted of ten enclosures, each with 2 12-inch speakers as actuators; 8 microphones mounted on the roof as control sensors, a cabinet containing the controller and other electronics; a passive exhaust silencer specially designed for this system; and other components. This design was installed and tested on a locomotive in 1999. The tests included measurements of noise reduction performance and an inspection for any physical degradation of the system.
Format:

PDF
Funding:

RR028/RO 122
Collection(s):

Federal Railroad Administration US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e30ddd8919e358306de61d139af0bafa0085db772d1e89dc255a1db49c3bb01c
Download URL:

https://rosap.ntl.bts.gov/view/dot/40500/dot_40500_DS1.pdf
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A Hybrid Active/Passive Exhaust Noise Control System (APECS) for Locomotives

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