| 旋翼挥舞作用下的直升机增稳系统稳定性估计 |
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| 引用本文： | 徐军,陈大融,陈皓生,郭百巍.旋翼挥舞作用下的直升机增稳系统稳定性估计[J].清华大学学报(自然科学版),2002,42(6):780-782. |
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| 作者姓名： | 徐军 陈大融 陈皓生 郭百巍 |
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| 作者单位： | 清华大学精密仪器与机械学系,北京,100084 |
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| 基金项目： | 清华大学“九八五”资助项目 |
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| 摘 要： | 研究了在攻击直升机上旋翼挥舞效应对增稳系统性能和设计的影响。建立了含有挥舞方程的线性模型。通过常规的稳定性分析方法得出的结果表明 :准静态假设下所设计的高增益纵向增稳系统将出现不稳定响应 ,并且考察了控制律中不同参数对稳定性的影响 ,其结果均弱于增益的影响作用。因此在系统设计时 ,应采用含有挥舞方程的直升机运动模型。最后通过计算 ,得出了在挥舞作用的影响下的纵向增稳系统的稳定性条件估计
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| 关 键 词： | 直升机 旋翼挥舞动力学 增稳系统 稳定性 |
| 文章编号： | 1000-0054(2002)06-0780-04 |
| 修稿时间： | 2001年3月12日 |
Stability estimation of helicopter stability augmentation system with rotor flapping dynamics |
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| XU Jun,CHEN Darong,CHEN Haosheng,GUO Baiwei.Stability estimation of helicopter stability augmentation system with rotor flapping dynamics[J].Journal of Tsinghua University(Science and Technology),2002,42(6):780-782. |
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| Authors: | XU Jun CHEN Darong CHEN Haosheng GUO Baiwei |
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| Abstract: | Rotor flapping dynamics affects the stability of combat helicopters. A linear flapping dynamics model was developed to analyze the stability augmentation system for helicopters. The quasi-static stability analysis showed that a high-gain longitude stability augmentation system had an unstable response. Among the different control law parameters affecting the stability augmentation system for helicopter dynamics stability, the gain had the most important effect. The results also showed that the flapping dynamics should be included in the system design. An approximate analysis of the longitudinal stability augmentation system was given to analyze the effect of the flapping dynamics. |
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| Keywords: | helicopter rotor flapping dynamics stability augmentation system stability |
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