| 螺桨转子颤振涡动的试验研究 |
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| 引用本文： | 李智炜,徐明,任兴民.螺桨转子颤振涡动的试验研究[J].航空动力学报,1993,8(1):41-44,92-93. |
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| 作者姓名： | 李智炜 徐明 任兴民 |
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| 作者单位： | 西安市西北工业大学振动工程研究所，西北工业大学，西北工业大学 710072 |
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| 摘 要： | 当涡桨飞机因发动机安装结构中某一部件损坏 ,致使螺桨轴轴头刚度下降 ,其螺桨发生颤振涡动的极限飞行速度会下降。风洞试验研究证实了上述理论是正确的
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| 关 键 词： | 螺旋桨 颤振涡动 涡桨飞机 |
| 收稿时间： | 1/1/1992 12:00:00 AM |
EXPERIMENTAL INVESTIGATION ON WHIRL FLUTTER OF PROPELLER ROTOR SYSTEM |
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| Li Zhiwei,Xu Ming and Ren Xingmin.EXPERIMENTAL INVESTIGATION ON WHIRL FLUTTER OF PROPELLER ROTOR SYSTEM[J].Journal of Aerospace Power,1993,8(1):41-44,92-93. |
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| Authors: | Li Zhiwei Xu Ming and Ren Xingmin |
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| Institution: | Northwestern Polytechnial University;Northwestern Polytechnial University;Northwestern Polytechnial University |
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| Abstract: | A whirl flutter of a propeller rotor system has been investigated experimentally in the wind tunnel.The design of whirl flutter experimental equipment and a dynamic stiffness coefficient measurement method for the supporting system are also studied.The experiments show that if the support stiffness of the propeller rotor system is reduced as a result of failure of some elements in the engine frame or mount,the threshold flight velocity of onset whirl flutter will be decreased.The results of its wind tunnel experiments exhibit the same trends as in its theoretical calculation. |
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