| 现代飞机尾旋平衡点的分析和预测 |
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| 引用本文： | 肖顺达,陈鹰. 现代飞机尾旋平衡点的分析和预测[J]. 航空学报, 1989, 10(1): 55-59 |
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| 作者姓名： | 肖顺达 陈鹰 |
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| 作者单位： | 西北工业大学(肖顺达)，西北工业大学(陈鹰) |
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| 摘 要： | 本文提出了两种近似估计稳态尾旋平衡点的方法。一种是通过忽略一些对稳态尾旋影响不大的参数,理论上得出了稳态尾旋时各量的近似值;另一种方法是通过计算机,运用最优化方法——DFP变尺度法,算出平衡点的值,从而大大缩短了尾旋运动的数字仿真时间,为改进尾旋的研究提供了方便。
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| 关 键 词： | 尾旋 稳态平衡点 六自由度运动 理论预测法 变尺度法 |
| 收稿时间： | 1987-01-03; |
THE ANALYSIS AND PREDICTION OF THE SPIN EQUILIBRIUM POINT OF MODERN AIRCRAFTS |
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| Northwestern Polytechnical University Xiao Shunda and Cheng Yin. THE ANALYSIS AND PREDICTION OF THE SPIN EQUILIBRIUM POINT OF MODERN AIRCRAFTS[J]. Acta Aeronautica et Astronautica Sinica, 1989, 10(1): 55-59 |
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| Authors: | Northwestern Polytechnical University Xiao Shunda and Cheng Yin |
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| Affiliation: | Northwestern Polytechnical University Xiao Shunda and Cheng Yin |
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| Abstract: | Two approximate methods for predicting the equilibrium point of steady-state spin are presented. Firstly approximate values of state variables during steady-state spin are determined analytically by neglecting certain parameters which have trivial influence on the spin. In the second method the state variables of the equilibrium point are calculated by a digital computer by using the optimization method------DFP varying scaling method. In this way, the computing timefor digital simulation of spin motions is shortened and thus it provides convenience for the study of spin problems. |
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| Keywords: | spin steady state equilibrium point six-degree-of-fre- edom motions analytical prediction method varying scaling method. |
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