| 跨音速机翼结构动力响应的计算研究 |
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| 引用本文： | 王晓鹏,高正红. 跨音速机翼结构动力响应的计算研究[J]. 飞行力学, 1999, 17(1): 81-85 |
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| 作者姓名： | 王晓鹏 高正红 |
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| 作者单位： | 西北工业大学,西安,710072 |
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| 摘 要： | 通过交替求解流体运动方程和结构动力方程来计算时域内二维机翼的结构动力响应，并研究了结构参数对系统稳定性的影响，使用控制中的相平面图对计算结果进行分析，来判断系统的结构稳定性。计算中流体运动方程采用二维非定常Ｅｕｌｅｒ方程，并用Ｊａｍｅｓｏｎ提出的有限体积方案，四步Ｒｕｎｇｅ－Ｋｕｔｔａ时间推进求解；结构模型采用二自由度ＰＡＰ模型。经分析，计算结果合理。
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| 关 键 词： | 结构动力响应 非定常Euler方程 相平面图 结构稳定性 |
| 修稿时间： | 1998-06-25 |
The Study of Transonic Airfoil Structure Dynamic Response |
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| Wang Xiaopeng,Gao Zhenghong. The Study of Transonic Airfoil Structure Dynamic Response[J]. Flight Dynamics, 1999, 17(1): 81-85 |
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| Authors: | Wang Xiaopeng Gao Zhenghong |
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| Affiliation: | Northwestern Polytechnical University |
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| Abstract: | In this paper,the structure dynamic response of two dimensional wing is presented by solving two dimensional unsteady Euler equations and structural dynamic equations alternatively,and effects of characteristic on stability of structure are investigated.Then the computational results are analyzed to judge the stability by figure of phase plane in control theory.Throughout computation two dimensional unsteady Euler equations and PAPA model equations are utilized as fluid motion equations and structural dynamic equations respectively. |
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| Keywords: | Structure dynamic response Unsteady Euler equations Figure of phase plane Stability of structure |
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