| 飞机主起落架机轮摆振分析 |
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| 引用本文： | 诸德培. 飞机主起落架机轮摆振分析[J]. 航空学报, 1992, 13(9): 507-509 |
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| 作者姓名： | 诸德培 |
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| 作者单位： | 西北工业大学飞机系 西安 710072 |
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| 基金项目： | 高等学校科学技术基金会博士点基金 |
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| 摘 要： | 针对××型飞机主起落架上、下扭力臂之间装有附加阻尼器的特殊方案,分析了主起落架机轮摆振问题,讨论了各种参数的变化对防止摆振的作用,结果表明附加阻尼器对防止摆振的必要性和有效性。同时,又对该型飞机采用4轮小车式主起落架的改型方案,验证了去掉原来附加阻尼器的合理性。
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| 关 键 词： | 主轮摆振 附加阻尼器 机身刚度 摆振稳定边界 |
| 收稿时间： | 1991-11-24 |
| 修稿时间： | 1992-02-20 |
WHEEL SHIMMY ANALYSIS FOR MAIN LANDING GEAR OF AIRCRAFT |
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| Zhu De-pei. WHEEL SHIMMY ANALYSIS FOR MAIN LANDING GEAR OF AIRCRAFT[J]. Acta Aeronautica et Astronautica Sinica, 1992, 13(9): 507-509 |
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| Authors: | Zhu De-pei |
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| Affiliation: | Department of Airplane, Northwestern Polytechnical University, Xi'an,710072 |
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| Abstract: | Applying the general linear theory of shimmy, this paper analyzes the main wheel shimmy problem of a special type of the main landing gear equipped with an additional shimmy damper between the upper part and lower part of torque arms. The influence of various structural and operational parameters on shimmy is discussed, and the results show that the additional damper is necessary and effective for preventing shimmy. Meanwhile, a new version of this type of airceraft with four wheel bogie main landing gear is also investigated. It is concluded that in this case the additional damper can be omitted, since this landing gear itself is inherently stable as for shimmy. This approach aims to explain the practical advice adopted in an existing design. The results may also be referred for other aircraft design. |
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| Keywords: | main wheel shimmy additional damper the stiffness of fuselage the boundary of shimmy stability |
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