Turbomachine test bench with active noise control
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United States of America Patent
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Dec 25, 2018
Grant Date -
Mar 8, 2018
app pub date -
Aug 23, 2017
filing date -
Sep 5, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A test bench for turbomachine comprising: an installation zone for turbomachine; an active system for attenuating the noise emissions produced by the turbomachine. The active system includes an attenuation zone with emitters such as loudspeakers; a first microphone placed downstream of the turbomachine; and a second microphone placed downstream of the attenuation zone. The system reduces the turbomachine waves on the basis of the measurements from the first microphone and from the second microphone. The invention also proposes a method for attenuating the noise emissions from the turbomachine tested in the test bench.
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International Classification(s)
- F02K:JET-PROPULSION PLANTS
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- G10K:SOUND-PRODUCING DEVICES
- B64F:GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS
- B64D:EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SU....
- F02C:GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION....
- B64C:AEROPLANES; HELICOPTERS
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
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