Influence of Using Various Unsteady Aerodynamic Models on Propeller Flutter Prediction
Influence of Using Various Unsteady Aerodynamic Models on Propeller Flutter Prediction
复制标题
使用各种非定常空气动力学模型对螺旋桨颤振预测的影响
DOI：
10.2514/1.c031357
复制
发表时间：
2011
影响因子：
2.2
通讯作者：
A. Rosen
中科院分区：
文献类型：
--
作者：
V. Ognev;A. Rosen
研究了不同非定常气动力模型对轴向飞行螺旋桨颤振预报的影响。空气动力学模型包括：Theodorsen的模型、两种不同的级联模型和一个详细的三维模型，还包括一个在失速附近和失速之后的非稳态攻击角模型。这些空气动力学模型在多叶螺旋桨的气动弹性分析中被实现。通过与文献中的实验结果进行比较，验证了该模型的有效性。然后，使用经验证的模型来研究不同叶片数量和前进比组合的各种空气动力学模型之间的差异。
The influence of various unsteady aerodynamic models on the flutter prediction of propellers in axial flight is investigated. The aerodynamic models include: Theodorsen’s model, two different cascade models, and a detailed three-dimensionalmodel.Amodeloftheunsteadybehavioratanglesofattacknearandbeyondstallisalsoincluded. These aerodynamic models are implemented in an aeroelastic analysis of a multibladed propeller. The model is validated by comparing its results with experimental results from the literature. The validated model is then used to study the differences between the various aerodynamic models for different combinations of numbers of blades and advance ratios.