Bruel & Kjaer UK Ltd. - PRODUCT NEWS
Airbus military tanker passes civilian noise restrictions
Spains National Institute for Aerospace Technology (INTA) successfully took part in the Noise Certification of the Airbus A330 MRTT (Multi Role Transport Tanker) using Brüel & Kjærs equipment and expertise.
One of the main reasons for the success of the Airbus A330 MRTT to date is that it can operate in civil airports, for example during international human aid operations. However, the aerodynamic modifications from the basic A330 to the A330 MRTT aircraft required new noise certification.
Living up to the exacting standards of the European Aviation Safety Agency (EASA) and the International Civil Aviation Organisation (ICAO) called for precise measurement equipment, and for Ernesto Ibáñez, an aeroacoustic engineer at INTA, Brüel & Kjær was the obvious choice.
One of the reasons to choose Brüel & Kjær for this complex test is the extreme flexibility of the PULSE system. In addition to an Acoustic Calibrator Type 4231, we also borrowed additional portable PULSE units from Brüel & Kjær to generate electrical noise signals for in situ verifications, he said.
Immediately after the flight pass, the acoustic data were validated together with meteorological and trajectory data in only four minutes. Time was critical with an expensive aircraft in the air, so it was vital that measurements were reliably recorded instantly for later analysis and reporting.
According to Ernesto Ibáñez, We knew it was going to be a long and complex process requiring a lot of initial tests and support. We have been working with Brüel & Kjær Spain long enough to know that they not only sell great quality instruments, but also provide first-class local support
and fully understand our needs.
Pascual Rodriguez from Airbus parent company EADS added that Brüel & Kjærs assistance during measurements saved our skin at very critical moments, for example, when EASA authorities required us to perform some complex instrumentation verifications.
About Bruel & Kjaer
Brüel & Kjær is a world-leading manufacturer and supplier of sound and vibration solutions for use in a wide range of applications including environmental noise measurements, building acoustics, vibration measurements and quality control for use in the automotive, aerospace and consumer industries, as well as by local authorities. Today Brüel & Kjær has 900 employees and sales offices in 55 countries. Brüel & Kjær is a subsidiary of UK-based Spectris plc. (www.spectris.com). Spectris has annual sales of approximately £656m and employs around 6000 people worldwide in its 15 business units.
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