| 直升机对大气紊流的响应 |
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| 引用本文： | 林河泉
,许心钰.直升机对大气紊流的响应[J].南京航空航天大学学报,1988(1). |
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| 作者姓名： | 林河泉 许心钰 |
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| 摘 要： | 本文研究了直升机在大气紊流中的响应。文中假设大气紊流是一个在时间上平稳、在空间上均匀的随机场,紊流速度在桨盘上是线性分布,并以Von Karman模型来描述其频谱。诱导速度采用涡流理论导出的非均匀分布模型。 本文以其典型直升机为算例,计算了直升机对大气紊流的响应,并分析各紊流分量对直升机响应值的影响。
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| 关 键 词： | 直升机 大气紊流 响应 |
The Response of Helicopter to the Atmospheric Turbulence |
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| Lin Hequan Xu Xinyu.The Response of Helicopter to the Atmospheric Turbulence[J].Journal of Nanjing University of Aeronautics & Astronautics,1988(1). |
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| Authors: | Lin Hequan Xu Xinyu |
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| Institution: | Lin Hequan Xu Xinyu |
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| Abstract: | The response of a helicopter to the atmospheric turbulence is investigated in this paper. The atmospheric turbulence is considered as a random field, statistically steady in time and homogeneous in space. The linear distribution of the velocity of turbulence on the rotor disk is assumed. The power spectral density for each turbulence component is given by Von Karman model. The nonuniform induced velocity distribution on the rotor disk is derived from the fixed vortex theory.A sample calculation of a typical helicopter has been made. The RMS responses to the atmospheric turbulence are calculated and the influences of each turbulence component on the responses of helicopter are analysed. |
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| Keywords: | helicopter atmospheric turbulence response |
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