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Active Noise Control Experiments in a Fork-lift Truck Cabin
Responsible organisation
2004 (English)Conference paper, Published paper (Refereed) Published
Abstract [en]

High comfort for the driver in working vehicles is an important feature as well as a demand from the drivers. Low noise level is an essential factor for the manufacturer to maintain a high standard and comfort of vehicles. In many cases the noise inside the cabin can be related to the engine orders. Hydraulic pumps and fans are also related to the engine but not necessarily integers of the engine order. Passive absorbers are not suitable for the lowest frequencies and one approach is to use an active noise control system to solve the noise problem at low frequencies. In the present experiment loudspeakers were mounted inside the cabin of a fork lift-truck to produce the secondary noise field. To sense the residual noise, microphones were installed close to the driver's head. The aim is to create a zone of reduced noise around the head. Since a large portion of the noise inside the cabin can be related to the engine, an active control system based on a feedforward solution is possible. Experimental results from a feedforward solution of active noise control in a fork-lift truck cabin show that the noise level in the low frequency region can be reduced significantly.

Place, publisher, year, edition, pages
St Petersburg, 2004.
Keyword [en]
Active Noise Control
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-9621Local ID: oai:bth.se:forskinfoB80C01E212C101DBC1256EE5002237FBOAI: oai:DiVA.org:bth-9621DiVA: diva2:837517
Conference
11th International Congress on Sound and Vibration
Available from: 2012-09-18 Created: 2004-08-03 Last updated: 2015-06-30Bibliographically approved

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fulltext(219 kB)369 downloads
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Johansson, SvenClaesson, Ingvar
Signal Processing

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf