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首页> 外文会议>AIAA/CEAS aeroacoustics conference >Farfield Acoustic Characteristics of the DGEN380 Turbofan Engine as Measured in the NASA Glenn Aero-Acoustic Propulsion Laboratory
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Farfield Acoustic Characteristics of the DGEN380 Turbofan Engine as Measured in the NASA Glenn Aero-Acoustic Propulsion Laboratory

机译：在NASA格伦航空声学推进实验室中测得的DGEN380涡扇发动机的远场声学特性

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摘要

The Price Induction DGEN380 is a small, ～500-lbf thrust class, high-bypass, geared-turbofan engine with a separate flow nozzle. It is a modular, compact, lightweight turbofan with Full-Authority Digital Engine Control intended for 4-5 seat twin-engine Personal Light Jets flying under 25,000ft and 250kts. The general characteristics of the DGEN380 make it an ideal candidate for utilization as a test bed for engine aeroacoustic research in a relevant performance environment. To provide a baseline acoustic profile for the DGEN380, the engine was tested in the NASA Glenn Research Center's Aero-Acoustic Propulsion Laboratory. Acoustic measurements from two external arrays were acquired over nominal fan speed range of 50-100%. The acoustic data are evaluated and reported in terms of overall, broadband, and tonal components over frequency component bandwidths. In addition, internal engine station performance parameters were acquired but not reported herein.
机译：价格感应DGEN380是一款推力级约为500 lbf的小型，高旁通的带齿轮涡扇发动机，带有独立的喷嘴。它是一种模块化，紧凑，轻巧的涡轮风扇，具有全权限数字引擎控制功能，适用于飞行在25,000英尺和250节以下的4-5座双引擎个人轻型喷气机。 DGEN380的一般特性使其成为在相关性能环境中用作发动机空气声学研究试验台的理想候选产品。为了提供DGEN380的基线声学轮廓，该发动机在NASA格伦研究中心的航空声学推进实验室中进行了测试。在50-100％的额定风扇速度范围内，从两个外部阵列获得了声学测量结果。根据频率分量带宽上的总体，宽带和音调分量来评估和报告声学数据。另外，获取了内部发动机站性能参数，但未在此报告。

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