| 三种静气动弹性发散方法的一致性分析和验证 |
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| 引用本文： | 万志强,唐长红,杨超.三种静气动弹性发散方法的一致性分析和验证[J].航空学报,2002,23(4):342-345. |
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| 作者姓名： | 万志强 唐长红 杨超 |
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| 作者单位： | 北京航空航天大学,飞行器设计与应用力学系,北京,100083 |
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| 摘 要： | 介绍了 3种静气弹发散方法 (柔度法、模态法、颤振法 ),并对这 3种方法的一致性从理论上进行了分析和证明。使用这 3种方法对 5个平板机翼模型的发散速度进行了计算,其实际发散速度也从低速风洞试验中获得。通过对比计算结果和各模型风洞试验结果,进一步验证了这 3种方法的一致性。另外,还提出了在模态法和颤振法中基于发散特征向量的结构模态选取原则。
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| 关 键 词： | 气动弹性 静气动弹性 发散 复合材料机翼 前掠翼 风洞试验 |
| 文章编号： | 1000-6893(2002)04-0342-04 |
| 修稿时间： | 2001年7月2日 |
CONSISTENCE ANALYSIS AND VALIDATION OF THREE METHODS FOR STATIC AEROELASTIC DIVERGENCE |
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| WAN Zhi\|qiang,TANG Chang\|hong,YANG Chao.CONSISTENCE ANALYSIS AND VALIDATION OF THREE METHODS FOR STATIC AEROELASTIC DIVERGENCE[J].Acta Aeronautica et Astronautica Sinica,2002,23(4):342-345. |
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| Authors: | WAN Zhi\|qiang TANG Chang\|hong YANG Chao |
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| Institution: | Dept. of Flight Vehicle Design and Applied Mechanics, Beijing Univ. of Aero. and Astro., Beijing 100083, China |
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| Abstract: | Three methods to calculate the divergence dynamic pressure of static aeroelasticity are introduced, i.e . the flexibility method, the mode method and the flutter method, and the consistence of the three methods is proved. The divergence speeds of five plate wings are calculated by the three methods. Their true divergence speeds are obtained from a low speed wind tunnel test. The calculated results are compared with the experiment results, and the consistence is validated. Besides, the principle to select the number of structure modes based on the divergence eigenvector in the mode method and the flutter method is produced. |
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| Keywords: | aeroelasticity static aeroelasticity divergence composite wing forward sweep wing wind tunnel test |
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