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Internship Rolls-Royce Deutschland : aeroacoustics and noise

Dijk, N.J.G. van (2016) Internship Rolls-Royce Deutschland : aeroacoustics and noise.

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Abstract:The internship is performed within the Aeroacoustics and Noise department at Rolls-Royce Deutschland, at the headquarter located in Dahlewitz. "RRD is Germany's only fully certified engine manufacturer with complete systems capability for modern civil and militairy turbine engines. The site in Dahlewitz hosts Rolls-Royces global headquarter for the Civil Small & Medium Engines business. RRD is certified for the development, assembly, testing, monitoring and maintenance of medium and small engines, powering e.g. Gulfstream and Bombardier business jets. More than 6,000 engines have been delivered from Dahlewitz to date. The site is also hosting a testbed for development tests of large engines, e.g. the Trent XWB, and the Mechanical Test Operations Centre."1 During my internship I performed three assignments. The first assignment consisted of the design and refinement of a noise prediction tool with a graphical user interface in Matlab. The tool was mainly de- signed for performing complex parameter studies, or so called design of experiment studies. Also, for this assignment an user guide and developer guide have been made and a comprehensive test log for validation of the implemented functions within the tool. The test procedure is very generic and can be used for other tools as well. Secondly, acoustic impedance measurements were performed and evaluated on an acoustic liner for a scraped BR700 series bypass duct. Thirdly, a small assignment was performed on processing weather data to find suitable time slots for engine noise testing.
Item Type:Internship Report (Master)
Rolls-Royce Deutschland, Germany
Faculty:ET: Engineering Technology
Subject:52 mechanical engineering
Programme:Mechanical Engineering MSc (60439)
Keywords:Acoustics, Noise, Matlab, Noise prediction, Acoustic-liner, impedance measurements
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