直升机机动飞行对尾传动轴临界转速的影响

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (11) : 109-115.

论文

直升机机动飞行对尾传动轴临界转速的影响

陆凤霞1 朱如鹏1 倪德2

作者信息 +

Influence of Helicopter Maneuvering Flight on the Critical Speed of Tail Drive Shaft

LU Feng-xia1 ZHU Ru-Peng1 NI De2

Author information +

文章历史 +

摘要

直升机的平动分量和尾传动轴的位置参数均不影响传动轴的临界转速，仅直升机的转动分量对传动轴临界转速产生影响。通过几种典型机动飞行分析了直升机各转动分量对尾传动轴临界转速的影响，结果表明：偏航角速度与水平轴的临界转速近似呈抛物线关系，而与尾斜轴的临界转速近似呈线性关系且为左右对称图形；随着尾斜轴倾斜角的增大，对称轴向左偏移；俯仰角速度对尾传动轴临界转速的影响与偏航角速度相同；横滚角速度与水平轴和尾斜轴临界转速之间均呈线性关系，且随尾斜轴倾斜角的增大，对称轴向右偏移；传动轴第二阶临界转速变化曲线的对称轴对应角速度大小近似为第一阶临界转速时的16倍。

Abstract

All the translational motion components of helicopter and the position parameters of tail drive shaft do not affect the critical speed of tail drive shaft, and only the rotational motion components of helicopter affect the critical speed of tail drive shaft. The influence of the rotational motion components of helicopter on the critical speed of tail drive shaft was analyzed. The results reveal that the yaw angular velocity with the critical speed of horizontal drive shaft is parabola relation, the yaw angular velocity with the critical speed of oblique drive shaft is linear relation and the relation curve is symmetrical. The symmetry axis will offset to the left as the increase of the inclination angle of oblique tail drive shaft. The influence of the pitching angular velocity on the critical speed of tail drive shaft is the same as yaw angular velocity. The relationship between the rolling angular velocity and the critical speed of horizontal drive shaft and oblique drive shaft are all linear relation, and the symmetry axis will offset to the right as the increase of the inclination angle of oblique tail drive shaft. The angular velocity of symmetry axis of the second-order critical speed of drive shaft is about 16 times of the first-order critical speed.

导出引用

陆凤霞1 朱如鹏1 倪德2 . 直升机机动飞行对尾传动轴临界转速的影响[J]. 振动与冲击, 2016, 35(11): 109-115

LU Feng-xia1 ZHU Ru-Peng1 NI De2 . Influence of Helicopter Maneuvering Flight on the Critical Speed of Tail Drive Shaft[J]. Journal of Vibration and Shock, 2016, 35(11): 109-115

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