23 March 2011
IAC Automotive Test Facility Completed for Skoda in the Czech Republic
 The new Skoda Auto Acoustic Laboratories were completed in 2010 as a replacement of an old facility originally built in 1992. The new state of the art laboratories include two dynamometer semi-anechoic chambers for 4WD and 2WD vehicles, a modal analysis room, component test room, psychoacoustics laboratory and listening room.
Both of the semi-anechoic chambers were equipped with dynamometers and in-ground vehicle lifts, used for passenger noise vibration harshness (NVH) road simulation tests including cabin, engine, intake, tyre and exhaust noise in addition to vibration measurements and powertrain mounting tests. The rooms were fitted out with IAC Metadyne® LF metal-faced wedges, providing an acoustic test space free from reflections in order to comply with the stringent ISO 3745 standard for acoustic power measurement. This choice of absorbent lining with its improved durability ensures a consistent test environment for the lifetime of the laboratories.
A challenge faced by the project was the provision of adequate vehicle cooling without impacting any acoustic measurements. This was solved by ventilating each room using an IAC Quiet-Flow® duct attenuator system for minimal ambient noise in the chambers. Conditioned air is introduced into the test room via corner ventilation units and a forced air cooling duct at the front of the vehicle. A pop-up ventilation flap extracts the heated air and flexible exhaust collectors safely remove combustion gases from the test environment.
The modal analysis room is used to measure vibrations and the resulting emitted frequencies from sections of the body and chassis. This room was equipped with IAC Varitone® panels to control echo and reverberation. The component test room was also equipped with IAC Varitone® panels and is used for testing the noise emitted from component parts such as the air conditioning system, window wipers, doors and windows. The psychoacoustics laboratory and listening room use IAC Accutone® panels, enabling listening tests for reviewing vehicle noise and sound quality assessments.
Petr Pelant, of Skoda said “The fantastic new acoustic centre allows Skoda Auto engineers to not only save time and provide much more consistent tests, but has also provided a much more attractive and safe environment to work.”
For more information on Exhaust Silencers, Catalysts and SCR Systems, contact Graham Dale on grahamd@iacl.co.uk or 01962 873 000.
ENDS
For more media information please contact:
Sally Davis
IAC Press Office
+ 44 (0)23 9266 1600
sally@theprdepartment.co.uk
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