Engine jet noise is the biggest noise source in the take-off phase of mainstream civil aviation turbofan aircraft. The development and manufacture of civil aviation turbofan engine not only needs to consider the noise airworthiness standard, but also needs to consider the noise impact on the community around the airport. By dynamically predicting the jet noise of the engine and plotting its contour lines on the ground, not only the airworthiness of the engine can be mastered in advance, but also the influence of jet noise on the community around the airport can be mastered. Based on the Stone prediction model, develop MATLAB program and complete the noise prediction of specific models and draw dynamic noise contour.
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闫国华,马骞. 航空涡扇发动机喷气噪声动态等值线估计[J]. 科学技术与工程, 2020, 20(16): 6644-6649. Yan Guohua, Ma Qian. Contour Estimation of Jet Dynamic Noise of Aero-turbofan Engine[J]. Science Technology and Engineering,2020,20(16):6644-6649.