Estimating Blade Section Airloads from Blade Leading-Edge Pressure Measurements

机译：通过叶片前缘压力测量估算叶片截面的空气负荷

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The Tilt-Rotor Aeroacoustic Model (TRAM) test in the Duitse-Nederlandse Wind (DNW) Tunnel acquired blade pressure data for forward flight test conditions of a tiltrotor in helicopter mode. Chordwise pressure data at seven radial locations were integrated to obtain the blade section normal force. The present investigation evaluates the use of linear regression analysis and of neural networks in estimating the blade section normal force coefficient from a limited number of blade leading-edge pressure measurements and representative operating conditions. These network models are subsequently used to estimate the airloads at intermediate radial locations where only blade pressure measurements at the 3.5% chordwise stations are available.

机译：在Duitse-Nederlandse风（DNW）隧道中进行的倾斜-转子航空声学模型（TRAM）测试获取了直升机模式下倾转旋翼正向飞行测试条件下的叶片压力数据。整合了七个径向位置的弦向压力数据，以获得叶片截面法向力。本研究评估了线性回归分析和神经网络在从有限数量的叶片前缘压力测量值和代表性工作条件估算叶片截面法向力系数中的使用。这些网络模型随后被用于估计中间径向位置的空气负荷，在中间径向位置，只有在3.5％弦向站的叶片压力测量可用。

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来源
《AHS 59th Annual Forum Proceedings Vol.1 May 6-8, 2003 Phoenix, Arizona》|2003年|p.490-510|共21页
会议地点 Phoenix AZ(US)
作者
JOHANNES M. VAN AKEN;
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作者单位

AerospaceComputing, Inc. Army/NASA Rotorcraft Division NASA Ames Research Center Moffett Field, California;

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原文格式 PDF
正文语种 eng
中图分类航空;
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8. Estimating Blade Section Airloads from Blade Leading-Edge Pressure Measurements [R] . van Aken, J. M. 2003

机译：估算叶片前缘压力测量中的叶片截面空气负荷

Estimating Blade Section Airloads from Blade Leading-Edge Pressure Measurements

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