Testing static engine noise
Published: 25 June 2012 - Joe Bush
Brüel & Kjær is set to supply aircraft designer and manufacturer Pratt & Whitney with a static noise test system to perform all the tasks required for static engine noise certification and development testing.
The SECT System follows the measurement requirements and procedures set forth by the industry noise certification standards FAR 36 and ICAO Annex 16, SAE ARP 1846 A and the ARP 866A.
The system is based on Brüel & Kjær’s standard, commercial off the shelf (COTS) products. The SECT System employs the B&K PULSE data acquisition and analysis (overall and 1/3rd-octave) system.
It acquires all the relevant noise and weather data needed to generate certificated noise levels and corrects this data to standard reference conditions. The system provides a dedicated streamlined workflow to ensure that all required tasks and operations are performed with maximum reliability and efficiency.