Acoustics Considerations for Propulsion Airframe Integration

Van Zante, Dale ; Elliott, David M

关键词: ACOUSTICS;    ENGINE AIRFRAME INTEGRATION;    BOUNDARY LAYERS;    AERODYNAMIC NOISE;    PROPULSION;    NOISE REDUCTION;    ESTIMATES;   

RP-ID  :  GRC-E-DAA-TN71888

学科分类：航空航天科学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Many NASA and industry advanced airframe configurations involve highly integrated installations of the propulsion system either directly into the airframe or in close proximity. Current acoustic challenges resulting from highly integrated propulsion installations will be reviewed as well as the ongoing NASA efforts to quantify these impacts to improve noise estimates of future systems and guide noise reduction technology maturation activities.