Application of qualitative error analysis method in the mechanical navigation system
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摘要: 采用无限片桨叶的固定尾迹分析法,建立了前飞状态下共轴双旋翼的固定尾迹模型,对共轴双旋翼的前飞气动特性进行了理论研究.得到给定几何参数、桨盘间距和飞行状态下求解上下旋翼气动特性的完整算法.通过与试验数据对比证明了理论方法的正确性.Abstract: The rigid-wake mode of co-axial rotor in forward flight was set up based on analysis of infinite blade rigid-wake mode. The method of aerodynamic characteristics of co-axial rotor in forward flight was studied by given rotor geometry, distance between upper and lower rotor, advance ratio. The example of the method indicates that the theoretical and experimental results are consistent well.
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Key words:
- helicopter /
- aerodynamic interference /
- coaxial rotor /
- rotary wing aerodynamics /
- circulation
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