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Prediction of Flight Noise Level by Using Far Field Noise Data of the Eengine in Static Testing
LIU Jin-hu;YAN Guo-hua;XIE Fu
2012, 32 (2):
91-94.
DOI: 103969/j.issn.1006-1355-2012.02.022
（ Aviation Engineering College of Civil Aviation University of China, Tianjin 300300， China ）
Abstract : Before an aircraft with the advanced engine putting into the market, its airworthiness noise recertification is necessary. Using the static test data of the engine to predict the flight noise level of the aircraft can reduce the cost of the recertification. In this article, the far field noise data of the testing engine was modified according to the flight condition and then used to predict the flight noise level of the aircraft. The feasibility of this method was verified by comparing the results with those in the real flight test.
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