| 基于角运动入流模型的旋翼俯仰状态气动响应计算 |
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| 引用本文： | 李春华,陈平剑,赵小全.基于角运动入流模型的旋翼俯仰状态气动响应计算[J].直升机技术,2008(3):47-54. |
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| 作者姓名： | 李春华 陈平剑 赵小全 |
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| 作者单位： | 1. 中国直升机设计研究所,景德镇,333001
2. 总参陆航部驻景德镇地区军事代表室,景德镇,333002 |
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| 摘 要： | 利用旋翼弯曲涡管理论模型,并计人涡核修正影响,发展了一个计算角运动对旋翼人流影响的分析方法,并通过该方法计算的旋翼人流分布与实验结果的对比,验证方法的有效性,然后计算了直升机在悬停和前飞时俯仰率对旋翼入流的影响.针对机动飞行时的尾迹畸变效应,对Pitt-Peters动态人流模型进行了增广,并建立了动态的尾迹畸变模型以考虑机动飞行时的尾迹滞后效应,推导了旋翼有角运动时的桨叶挥舞运动方程,并给出了旋翼的平衡分析模型.结合增广的人流模型、尾迹畸变模型、桨叶挥舞运动模型和旋翼平衡分析模型,建立了一个旋翼有角运动时的动态气动响应分析方法,并应用该方法分析了模型旋翼在机动俯仰状态下的旋翼动态挥舞响应和气动力响应.
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| 关 键 词： | 旋翼 入流模型 俯仰 气动响应 |
Aerodynamic Response Characteristics Computation for Rotor in Pitching Flight Based on Angular Inflow Model |
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| Authors: | LI Chun-hua CHEN Ping-jian ZHAO Xiao-quan |
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| Institution: | LI Chun-hua1,CHEN Ping-jian1,ZHAO Xiao-quan2(1.China Helicopter Research , Development Institute,Jingdezhen,333001,2.Army Aviation Representative Office of General Staff in Jingdezhen,333002) |
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| Abstract: | Based on the curving vortex-tube model with the vortex-core corrections,an angular inflow method is developed.By applying the method,the rotor inflow characteristics are calculated,and the calculated results are compared with the available experimental data to show the validation of the present method.Using the method,the influences of the pitching rates on rotor inflow in hover and forward flight are calculated and analyzed.Then Pitt-Peters inflow model is augmented including the influence of the wake dist... |
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| Keywords: | rotor inflow model pitch aerodynamie response |
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