1) ducted tail rotor
涵道尾桨
1.
The flow field and performance of a helicopter ducted tail rotor in hovering and sideward flight were analyzed using CFD(Computational Fluid Dynamic) technique.
采用CFD(计算流体力学)方法分析在悬停和侧飞时直升机涵道尾桨的流场与性能。
2.
The shroud at high speed is modeled as an elliptic wing in order to construct a momentum theory method to investigate the aerodynamic characteristics of ducted tail rotor in hover and forward flight.
引入尾流收缩比因子,并将大速度时的涵道等效为圆形机翼,建立了一个适合于直升机悬停和前飞状态涵道尾桨气动特性分析的动量理论方法。
3.
The flow field characteristic of a helicopter ducted tail rotor in hovering were analyzed using CFD method in this paper.
本文采用CFD方法分析了悬停状态下涵道尾桨的流场特性。
2) ducted propeller
涵道螺旋桨
1.
The mathematical model of vortex intensity is set up for ducted propeller blades, and used for optimum design of the blades.
根据Theodorsen的片条理论、涵道后缘的库塔条件以及边界页微元涡丝的诱导方程,构筑了涵道螺旋桨叶片涡强度分布的计算模型,用该模型代替Prandtl的动量损失函数及环量函数,将自由螺旋桨的最小能量损失的设计方法加以推广,优化设计了涵道螺旋桨。
2.
It is usually used as a lifting device in aircrafts because of its high efficiency and high safety, but the interaction between duct and propeller cause a great difficulty in calculating ducted propeller aerodynamic characteristics.
涵道螺旋桨是涵道和螺旋桨的组合体,其气动效率高、安全性能好,常用作飞行器的升力系统,但由于涵道和螺旋桨相互干扰,涵道螺旋桨的气动特性计算比较复杂。
3) fenestron shrouded tail rotor; fenestron
窗隔式函道尾桨
4) vectored thrust duct propeller
矢量推力的涵道螺桨
5) twin-duct aircraft
双涵道螺旋桨飞机
6) tail rotor
尾桨
1.
This paper describes a demarcation and decoupling technology of helicopter bearingless tail rotor flexible beam,this technology can be used to solve the problem of flapping bending moment and lag bending moment coupling that encountered in bearingless flexible beam fatigue test,it also can be used to separate each test load component on the section effectively and to reduce the test error.
本文介绍了一种直升机无轴承尾桨柔性梁标定与解耦技术,该技术能有效地解决无轴承尾桨柔性梁在试验中挥舞弯矩与摆振弯矩的耦合问题,并能有效分离截面上各分项试验载荷,减少其试验误差。
2.
Combining a helicopter rotor loads flight testing,the study and application of the tail rotor loads flight testing technology are described,which has achieved the expectation.
结合某型机寿命可靠性动部件载荷实测任务要求,较详细地论述了尾桨动部件飞行载荷测试技术方法研究及应用,达到了预期目的。
3.
A prediction method for the load noise of tail rotors is studied.
对尾桨载荷噪声的预测方法进行了研究。
补充资料：尾道
尾道
日本本州西部港市。属广岛县。人口10.2万 （1986）。临濑户内海。十二世纪后半期作为商港兴起。十四世纪是同中国贸易的船舶内海停泊港。1898年设市。濑户内海沿岸交通要地。商业繁盛。造船工业发达，与对岸向岛（町）、因岛（市）形成造船工业区。和向岛间架有大桥。还有食品、机械、橡胶等工业。本州、四国联桥工程（3线17桥，1975年已动工）之一的尾道—今治线的起点。
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