1) free-spinning tail
自旋尾翼
1.
The roll coupling mechanism of a canard missile is analyzed, and wind tunnel experiments were conducted to study the canard roll control authority of canard-configuration missiles installed with fixed- and free-spinning tails.
分析鸭式布局导弹的滚转耦合机理,进行固定尾翼鸭式布局导弹和自旋尾翼鸭式布局导弹的风洞试验。
2) tail rotor
尾旋翼
3) no-tail rotor;Notar
无尾桨旋翼
4) autorotating rotor
自转旋翼
1.
Analysis and experimental study on aerodynamic characteristics of autorotating rotor;
自转旋翼气动特性分析及试验研究
2.
Study on aerodynamic characteristics of autorotating rotor and jump takeoff performance of gyroplane;
旋翼机自转旋翼气动特性及跳飞性能研究
3.
After an aerodynamic model of a autorotating rotor was established, the conclusion is drawn that the autorotating rotor of the gyroplane has a better aerodynamic condition and hig her efficiency compared with the rotor of the helicopter .
从建立自转旋翼的气动模型入手 ,通过与直升机正常工作状态下的旋翼的气动特性的对比 ,得出自转旋翼具有较好的气动环境和更高的效率 ;讨论了旋翼机的稳定转速与总距角、前飞速度以及桨盘迎角的关系 ,通过分析说明在设计旋翼机时 ,可选择一固定总距 ,使旋翼机在相当宽的飞行范围内 ,只需小幅度调整桨盘迎角就可保持稳定飞
5) interaction of the helicopter main and tail rotor
旋翼和尾桨干扰
1.
The interaction of the helicopter main and tail rotor has been numerically simulated with the help of using a newly developed main and tail rotor interaction method.
本文给出了一种新的旋翼和尾桨干扰的数值计算方法，通过对常规直升机旋翼和尾桨自由尾迹相互干扰的数值模拟，给出干扰对旋翼和尾桨非定常气动力以及相应的非定常尾迹几何形状的影响。
6) no tail rotor system
无尾旋翼系统
补充资料：自旋-自旋弛豫
自旋-自旋弛豫
磁共振成像术语。又称T2弛豫或横向弛豫(transverse relaxation)，指垂直于外磁场B0方向的磁化矢量的指数性衰减过程。磁共振成像时，对置于外磁场B0中的自旋系统施加90°射频脉冲，则自旋系统被激励，其净磁化矢量指向与外磁场B0垂直；射频脉冲终止后，被激励的质子与邻近的原子核之间发生相互作用，逐渐失去相位，净磁化矢量指向恢复与外磁场平行，该过程称自旋-自旋弛豫。自旋-自旋弛豫过程无能量交换。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条