1) rotor impedance
旋翼阻抗
1.
The rotor impedance is calculated from the rotor equations of motion in the fixed- coordinate system derived from the modal equations of blade in the rotating-coordinate system.
直升机的旋翼与机身在桨毂处是机械耦合的，用旋翼阻抗和机身阻抗在桨毂处匹配的方法分析旋翼／机身耦合系统的固有特性。
2) gyration impedance
[电]旋转阻抗
3) rotor-blade airfoil
旋翼翼型
1.
Experimental investigation on unsteady aerodynamics of rotor-blade airfoil;
旋翼翼型俯仰沉浮运动非定常气动特性实验研究
4) rotor
[英]['rəʊtə(r)] [美]['rotɚ]
旋翼
1.
Helicopter rotor smoothing based on GRNN neural network and genetic algorithm;
基于GRNN网络和遗传算法的旋翼动平衡调整
2.
Study of aerodynamic model for the maneuvering rotor;
适合机动飞行的旋翼气动模型研究
3.
Experiments of rotor wake distortion in pitching maneuvers;
机动飞行中旋翼尾迹畸变效应实验
5) helicopter rotor
旋翼
1.
Euler solutions of transonic flow for a helicopter rotor in hover using multigrid method;
用多重网格方法计算旋翼跨声速无粘流场
2.
Numerical simulation of the viscous flow past a helicopter rotor in forward flight using newton-like sub-iterations;
用Newton子迭代方法计算前飞旋翼粘性绕流
3.
Navier-Stokes computation about a helicopter rotor in hover using chimera grids and multigrid acceleration
基于重叠网格技术和多重网格算法的悬停旋翼粘性绕流数值模拟
6) rotors
旋翼
1.
In the coordinate system rotating with the blade, a free wake model for hovering rotors using an iterative procedure and the curved vortex element on the circular arc is established and checked by the comparisons with experimental data on the tip vortex path and blade bound circulation for two different model rotors.
在随桨叶旋转的坐标系中，建立了悬停旋翼自由尾迹计算的迭代方法和模型。
2.
In the method ,the blades are treated as rigid ones with offset and spring restrained hinges and with structural coupling between flap and lead lag motion for the purpose of being applicable to hingeless or starflex rotors.
采用带外伸量及弹性约束的当量铰桨叶模型，考虑了旋翼挥／摆结构耦合及动力入流非定常气动力，建立了悬停状态旋翼／机体耦合动稳定性分析方法，适用于星形柔性及无铰式等旋翼系统。
3.
A computational method based on rotor free-wake is developed for predictig flow field between the twin rotors of coaxial helicopters.
建立了一个适合于共轴式直升机双旋翼流场特性分析的自由尾迹计算方法。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
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