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Method to Calculate Behind Start of Takeoff Roll Noise Level Adjustments 计算起飞后滚转噪声水平调整的方法
发布日期: 2022-11-18
SAE AIR6297描述了一种计算起飞滚转(SOTR)开始时飞机后方位置(由角度偏移或方向性描述)的噪声级调整的方法。该方法源自喷气式飞机(约2004年)的经验数据,大多数喷气式飞机配置了具有高旁通比的翼装发动机(Lau等人,2012年)。还描述了适用于现代涡轮螺旋桨飞机的方法。AIR1845A、ARP5534、ARP866A和AIR5662中描述了飞机噪声预测模型所需的其他传播相关调整的计算。
SAE AIR6297 describes a method to calculate noise level adjustments at locations behind an airplane (described by an angular offset or directivity) at the start of takeoff roll (SOTR). This method is derived from empirical data from jet aircraft (circa 2004), most of which are configured with wing-mounted engines with high by-pass ratios (Lau, et al., 2012). Methods are also described which apply to modern turboprop aricraft.Calculations of other propagation-related adjustments required for aircraft noise prediction models are described in AIR1845A, ARP5534, ARP866A, and AIR5662.
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