| 柯氏力对桨叶旋转面振动固有频率的影响 |
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| 引用本文： | 陈树辉,蔡承武.柯氏力对桨叶旋转面振动固有频率的影响[J].中山大学学报(自然科学版),1987(1). |
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| 作者姓名： | 陈树辉 蔡承武 |
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| 作者单位： | 中山大学力学系，中山大学力学系 |
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| 摘 要： | 本文用有限元法分析了柯氏力对桨叶旋转面固有振动频率的影响.文中提出有效的计算方法,与不考虑柯氏力的情况相比,虽然方程阶数提高一倍,但基本不增加对计算机容量的要求.最后给出数值结果.
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| 关 键 词： | 桨叶 频率 有限元 柯氏力 特征值 |
The Influence of Coriolis Forceon the Natural Frequencies for the Rotor Blades in the Rotating Plane |
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| Chen Shuhui Cai Chengwu.The Influence of Coriolis Forceon the Natural Frequencies for the Rotor Blades in the Rotating Plane[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,1987(1). |
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| Authors: | Chen Shuhui Cai Chengwu |
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| Institution: | Chen Shuhui Cai Chengwu |
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| Abstract: | The influence of coriolis force on the natural frequencies of the rotor blades is analysed by the finite element method. We consider the coupling effects of axial and tranvcrse vibration in the rotating plane. An effective algorithm is presented, therefore, comparing with the equation which does not include coriolis force, the number of order of the eigenvalue equation is double, but the requirement for the capacity of the computer is not increase. The numerical results are given for a helicopter rotor blade. The results show that the first few natural frequencies are slight drop, because of coriolis force is considered. The error is less than one percent, if coriolis force is neglected. |
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| Keywords: | rotor blade frequency coriolis finite element eigenvalue |
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