| 机动飞行状态的旋翼入流特性分析 |
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| 引用本文： | 赵小全,白春华,曹金华,李春华.机动飞行状态的旋翼入流特性分析[J].直升机技术,2009(2). |
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| 作者姓名： | 赵小全 白春华 曹金华 李春华 |
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| 作者单位： | 1. 总参陆航部驻景德镇地区军事代表室,景德镇,333002
2. 中国直升机设计研究所,景德镇,333001 |
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| 摘 要： | 基于近似弯曲涡管的旋翼涡流理论模型,并计入涡核修正影响,建立了一个分析角运动对旋翼入流影响的计算方法。利用该方法,本文首先计算了无角运动时的旋翼入流分布,并与可得到的实验结果进行了对比,以表明涡管尾迹模型的有效性,同时分析了涡环对空间点的诱导速度的变化趋势。然后计算了悬停、爬升及前飞状态下不同俯仰及滚转机动率对旋翼入流的影响,并给出了一些结论。
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| 关 键 词： | 旋翼入流 机动飞行 涡流 涡管 |
Curving Vortex-tube Model Calculations on Inflow Characteristics for Maneuvering Flight |
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| Authors: | ZHAO Xiaoquan BAI Chunhua CAO Jinhua LI Chunhua |
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| Institution: | 1.Military Representative Office of the Army Aviation Department for the Headquarters of thePLA General Staff in Jingdezhen Region; Jingdezhen; 333002; 2.China Helicopter Research and Development Institute; 333001); |
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| Abstract: | Based on the curving vortex-tube model with the vortex-core corrections,a convenient computational method was developed for the prediction of the influence of helicopter maneuvering flight on the rotor inflow.By applying the method,the rotor inflow characteristic and the induced velocity distribution of a vortex ring are calculated,and the calculated results are compared with the available experimental data to show the validation of the present method.Then,the influences of the pitching rates and rolling ra... |
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| Keywords: | rotor inflow maneuvering flight vortex vortex-table |
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